AV and Naim

Posted by: NigelP on 10 November 2003

Good evening all - been a long time since I've been here but thought that folks would be interested in a neat Naim AV solution that I am building up. When I say Naim I mean Naim centric. To be honest I have felt that Naim, although venturing with some good products, still aren't that committed to AV. That's OK unless you're trying to make your system the centre of the package! Anyway, to the report.
I have a NAC52/500/NBL set up. I have been talking with a couple of dealers about AV - both at the opposite end of the spectrum in terms of their thoughts on where to go. One dealer tells me "keep the two separate - keep your Naim for music and go for a separate speaker package for the AV". The other saying "why would you want to do anything else than use all that amplification and stereo at the front end?".
Anyway, I've gone for something in between and the results are spectacular. I managed to get myself a Denon DVD-A1/AVC-A1SR pair in black and have connected the output of the left/right front into the back of the 52. The centre (Naim Axess) is driven by the AVC-A1SR with a future possible upgrade to take the centre output into a NAPV 145 later. The Axess is a great match for the NBLs and is really shown off when playing the recent Eric Clapton live DVD in DTS mode. Surround is dealt with by the AVC-A1SR again into a rather old but still competant British Loudspeakers BLQ-Q1 (with ScanSpeak tweeters). The line up is completed by the rather tasty M&K MX-700 which is a really, really good subwoofer. It produces music in the bass which brings a smile when playing a live music DVD and is also able to deliver those big sounds when something like a spaceship flies over your head!
So why did I post this? To go the Naim route would have cost me more than I could afford and I am not convinced that Naim have dealt with the problem with surround as well as others. With the Denon pair I get great sound and picture and I can use the Denon amp to power the speakers that my 500 doesn't. Timing isn't an issue (or at least not noticable) and we get to watch movies with awesome sound around us. I considered the Naim AV2 and was astonished at the amount of money I needed to spend on power amps so, if you're like me, have Naim kit that you want to use but don't want to pay an arm and a leg to complete the picture, then this is something you may want to try out. Eventually, I will try the M&K rear speaker package to complete the picture.
You can of course try this with any AV amp so long as you have pre-outputs on the back. Whatever you do - enjoy.

Nigel

P.S. the Denon amp is more than capable of driving that big centre speaker from Naim - it's really easy to drive; nice job folks!
Posted on: 10 November 2003 by neil w
i thought the axess was the little center speaker

neil
Posted on: 10 November 2003 by Geoff P
Nigel

I have done pretty much the same as you with the following:
Stereo and front channels in multichannel:
282/250
Center, surround and surround back:
Sony VA555ES
DVD-V / DVD-Audio and SACD
Pioneer 939A & Sony XA333ES
Speakers: Totem fronts, rest B&W.
Sound: Room filling and for example on the Eric Clapton DVD you are talking about superb. Multichannel SACD is also great

I recently replaced a 150 with the 250 and now have the chance to use the 150 to drive the surround channels since I have not sold it yet.
I found little difference if any in the way it all sounded comparing the 150 against the Sony a/v amp so I agree with you that the NAIM AV2 / V175 solution is way expensive and I don't think would be noticeably better than the Sony which came in at 700 GBP for the lot!

regards
GEOFFP
Posted on: 10 November 2003 by Martin Payne
Nigel,

have you had the conversion done on your 52 to give a unity gain input?

cheers, Martin

E-mail:- MartinPayne (at) Dial.Pipex.com. Put "Naim" in the title.
Posted on: 10 November 2003 by Johns Naim
Hello Nigel

Yes, I would also concur that the results can be quite spectacular when integrating Naim equipment with other 'lesser' items when the quest is for an affordable A/V solution.

My two channel set up is CDI/72/Hi-Cap/180/SBL's to which I have added an Sony ES 9000 series DVD/SACD player, ES 9000 A/V processor, and ES 9000 multi-mode 5 channel power amp.

As in your setup, the front left/right from the processor goes to the 72, and the Sony amp drives the rears, in this case a pair of Tannoy mx2's. I don't have center at the moment (running in 'phantom') nor a sub, but still the results really are quite spectacular, agreed.

I'm intending to go with an Access when funds permit, and have no doubt the Sony amp will drive it with ease.

I did some very careful auditioning before going this route, and felt that whilst the AV2/175 set up is the best I've heard, that the overall involvement/enjoyment factor in the movie genre (given we're dealing with a lossy compression system for a start, plus the 'distraction' of the picture) was only slightly higher than equipment that was considerably cheaper.

Thats not to 'bash' Naim - no mistake, I'd have it if I could afford it, as it IS better than the Arcam, Rotel, Denon, and Sony options that I heard, however I too think that for movie use, one can get very close to that level of performance for a lot less outlay.

The top ES Sony range is on par with the top Denons IMHO, and is exceptional value for money, i.e. performance for the cost, as is the Denon, again IMHO.

I've heard many good reports on the M&K subs, but am hoping (pls Naim :-) ) that they will come up with an affordable and high performance sub themselves, to best compliment the SBL's etc.

But as you say, timing, speed, detail, etc is not an issue in my present setup.

I've been VERY surprised and pleased with this, as it is frankly a lot better than I was expecting.

As a matter of interest, who else has gone down this sort or route re integrating Naim with other A/V equipment, and what have been the results? I'm sure more than quite a few of us here would be interested to hear of the positives or pitfalls of such arrangements.

Warmest Regards

John... Wink

Populist thinking exalts the simplistic and the ordinary
Posted on: 10 November 2003 by karyboue
I made quite the same
NAC 112/NAP 150/CD 5/FC 2 + Floating Technology Cameleon I speakers on Hifi

For the missing hometheater channels I wondered a long time replacing the 112 by an AV2 but I only added a Rotel RSP 1066 + a pair of Floating Cameleon II on rear and a full Floating Triphonic System (2 sats and a Passive ) bravely Wink but perfectly driven by the center channel of a NAP V 175.
DVD player is a Cambridge DVD 300.

Watching DVDs I notice a little loss of dynamic and general quality on L/R front speakers compared to the other channels due to the 112's unity gain.

[This message was edited by karyboue on TUESDAY 11 November 2003 at 03:38.]
Posted on: 11 November 2003 by Geoff P
quote:
The top ES Sony range is on par with the top Denons IMHO, and is exceptional value for money, i.e. performance for the cost, as is the Denon, again IMHO.

I've heard many good reports on the M&K subs, but am hoping (pls Naim :-) ) that they will come up with an affordable and high performance sub themselves, to best compliment the SBL's etc.



John as you can see from my posting I am a "SonyES" man myself and do agree the results delivered are excellent and VFM.

On subs have you considered REL? I have a REL QUAKE (awful name) and am very happy with it because it delivers truly musical bass, not boom boom, has true frequency "roll in" adjustement and offers two settings which allow you to select the "speed" of the bass delivery.
It integrated well through speaker level inputs when adding to the stereo coming from the 250 and the line level input is independently adjustable to avoid over emphasised bass when acting as the .1 channel. Rel is quite popular among Naimites who decided in favor of sub assited bass. Do a search on "REL" to see some info.

regards GEOFFP
Posted on: 11 November 2003 by Peter Gear
Geoff, Nigel, John

All the above is music to my ears and perhaps money in my pocket!

I have been toying with AV sound for a while now (to go with my old style 52/250/SBL's) and listened to a demo of the AV2/NAP175 together with a denon DVD (I think 2800) player earlier in the year. Fronts were Allaes and powered via a 252/250. It all sounded brilliant. However the overall cost of the av upgrade with dynaudio centre and rears (which goes well with naim speakers by the way) and a sub has prevented me actually buying anything. The delays with the naim DVD player hasn't helped the decision making process either.
I had thought of the denon 2900 as the dvd player but was unsure about the processor and amplification aspect. So hearing that denon do this well is well worth me investigating.
Just a couple of questions;
Is the O/P to the front left and right fed via a dedicated o/p from the Denon or Sony processor? and will it be OK with the unity gain mod I have on my 52?
Also I have tried to find details of the Sony ES 9000 series of kit but their web site doesn't seem to recognize this number and i havent been able to find anything at all. Is this a new product?

Thanks for any help
Cheers
Peter
Posted on: 11 November 2003 by NigelP
Glad that this thread has been interesting and created some dialogue. There were some questions on here where I may be able to help:
  • Have you done the Unity Gain upgrade to the 52? No - I haven't done this yet but am thinking of it. Does anyone have any experience on cost and results?
  • Have you tried REL? Yes and I am still impressed with the M&Ks. The REL is very good and the musical versions are from the ST range. My situation is helped by the fact that I can get this M&K second hand and it's only 6 months old - I think that buying from new would certainly leave me with a tough decision against the REL but the M&K is very good also.
  • Are the outputs on the back of the AV amp from the processor? Yes they are! That's what makes this so good. I really have a superb signal (almost as good as you can get from Dolby Digital and DTS) going into the preamp. I am told that it will be possible to take further outputs from the AV processor to Naim amps to get improved control of the center channel and rears later on. This means that I don't have a dead-end solution!

There are comments on the Sony ES range here. My answer is that I can't comment on these units. I know the Denon range very well and they are one of the better Japanese manufacturers at focussing on power supplies and isolating analogue from digital circuitry. I was very lucky with the Denon gear since I got it ex-dem and the price was easily justified. In fact, I compared the DVD player with the very good Arcam DVD-27A and Denon lost slightly on sound but definitely pipped it on picture. One more thing that I have noticed is that, like the Naim, the Denon DVD player and the AV processor take a little time to reach their best after being powered up. Lastly, I have noticed no degradation on the sound of my turntable and CD player so I'm a very happy chappy for finding something that uses what I have in Naim without costing me an arm and a leg and without being a drag of the rest of the system. All those considering AV, take a little time to try this out. The Naim set up is GOOD (AV2) but I don't think that it's that good.

Cheers,

Nigel
Posted on: 11 November 2003 by Max Bass
Greetings everyone-

I too have very much enjoyed the surround sound movie experience with some wonderful results from Naim/other brand amplification.

My Naim/AV set up comprises of the following:
- Nac112/Hicap/Nap150
- Yamaha RXV2095 AV processor
- Sony mid priced DVD player.
Speakers:
- ProAc tablette/signature 50 -mains/front
- ProAc CC1 - center channel
- Sunfire True sub MKIV

My interests lie far more in music than in film and/or AV. So untill I can afford a bigger house with a dedicated AV room complete w/state of the art-conversation piece (lazy-boy style) AV chairs/recliners, etc, I'd just as soon put the money into upgrading the hi-fi. And yet, the modest A/V system that I have put together really does a remarkable job for the money.

I have Two questions to pose for you all:

The left and right channels are reversed when going through the nap150 via the unity gain/Yamaha AV processor. Has anyone worked out a solution to correct this other than physically switching the left/right speaker cable?

"I have noticed no degradation on the sound of my turntable and cd player".
I'm wondering if others have experienced the same or different when listening to their hi-fi.
I thought that the basic rule of thumb was not to have anything that can resonate in sympathy with the music being played in the room. Therefore, having additional speakers can ruin the pace, rhythm, pitch, etc. of the music.
Has anyone noticed any difference when listening to their music?

Regards, Max
Posted on: 11 November 2003 by Geoff P
WOW Lots of good answers and interesting questions.

What follows are personal comments and experience:
1) Denon vs Sony.
I had a denon AVR 3802 to start with which was good. The only reason I traded it in was because I wanted to switch between 2 sets of 6 channel inputs (DVD-A & SACD) and the Sony VA555ES was the only one around that had TWO sets of inputs (typically there is only 1 set). That said the Sony is just as good as the Denon. Both have really substantial power suppllies which are absolutely necessary to properly drive all the channel amps (up to 7.1).
2) Connecting to NAIM using unity gain.
Virtually all A?V amps have a set of "pre-out" sockets for all channels. You just run the front main pre outs to the NAC 52 ünity gain input. The volume level of the NAIM is then driven by the master volume control on the A/V amp in this condition and ensures it stays correct once you have set all the channel volumes up on the A/V amp. The only comment I have is that with the Denon I did get a low "hum"from this connection due I believe toan earthloop. Just as luck would have it this disappeared when I got the Sony.
3) Channel reversal
Interesting but I had the same problem on my Sony so I just swapped the RCA's at the pre-out sockets on the A/V amp. This is easier than swapping speaker leads since you can leave it like that permanently and every other connection to the NAIM is still correct.
4) Speaker reaction
I guess there is a little sympathetic vibration in the surround speakers, but it is just the faintest trace which yyou can feel with your finger touching the rubber cone suspensions. I do nothonestly think it is something to consider at all and should not affect the quality of the NAIM stereo sound.
5) Sony 9000ES
You should find it here: http://products.sony.co.uk/search.asp?id=__.
To be brutally honest it is built like a "brick shithouse"as they say. A bit of strange styling to my eyes but it is whatit sounds like that counts

regards
GEOFFP
Posted on: 11 November 2003 by Manu
The DVD 9000ES is discontinued.

My personal home AV setup:
DVP9000ES DVDP, Digital HD cable box
AV2
250 MK11, 145, 250 MK1
SBL, Axess, Definitive Tech bipolar rears
Sony 11HT projector, Stewart 92" screen.

Store AV demo system:
DVP9000ES DVDP
NAC252, AV2
NAP300, NAP145, NAP175
NBL,Axent, Intro (3)
Runco VX1000 with outboard scaler, Stewart 110" screen.

(I don't sell Sony, they just do good video stuff, DVDP will of course be replaced by Naim ones ASAP).

Both kits are quite good. Big Grin

Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.
Posted on: 11 November 2003 by Ancipital
Thought I'd just add a late comment to this (before I go to bed!)

I actually do have NAIM AV amp setup though fronted by a Pioneer 737 DVD player currently based on an AV2/Nait2/NAP175. Based on months of demos I had, this one done it for me. I'd heard the Yamahas, Denon's, Arcams and Tag McClaren, and personally IMHO, the Naim one was the only one that really moved me. Most of the others actually gave me quite nasty ear ache after less than 5 minutes.

The Nait2 is about to be replaced by a 282/200 combo as I've just acquired a 282 from the nice bloke over at Central Audio and just need to purchase the rest of the bits.

All my opinion of course Big Grin

Steve.
Posted on: 11 November 2003 by Johns Naim
Hello All

Regarding the ES 9000 Sony series, as Manu mentioned, the DVDPS9000ES dvd player has recently been discontinued - I believe the new model is DVD 900ES - not available in all markets - certainly not here in AUS, but from US reviews, it offers better picture again than my machine, and with multichannel SACD sound, as against two channel with my machine.

It appears that in most cases, new models come out pretty much every couple of years; even Arcam - so it's not just the Japanese :-) with constant new model releases - however mine is just over 18mnths old, and I've exceptionally pleased with it from a performance point of view (movie picture and sound) and the build quality and finish that engenders pride of ownership.

For some unknown reason, the TAE -9000ES A/V processor and matching amp TAN -9000ES are still available here in AUS - overseas (US) this has been recently replaced by the new top of the line DA9000ES digital receiver, i.e. digital rather than analogue inbuilt amps.

I got the A/V processor and amp earlier this year, and have been similarly impressed as with the DVD player re performance, build, overall quality etc.

Personally, I think the AV2/175 has the edge performance wise, but I am very pleased with the results as mentioned, and have no difficulty watching two, or on the very odd ocassion three movies in a row Eek and have had no problems with listner fatigue at all.

Hope this helps

Cheers

John... Wink

Populist thinking exalts the simplistic and the ordinary
Posted on: 11 November 2003 by Manu
John, IMO the 9000ES DVD player has a better picture than the new one, except the deinterlacing is better on the new.
BUT, you should take care of the deinterlacing (progressive scanning), those of you who have hi-end TV sets or are using separate scalers, most (if not all) of these units have far better deinterlacing algorithms than those included in the DVD players. In these cases, it is better to disable the progressive scanning of the DVD player.
You can find very good deals on "old" units without the progressive scan.

Emmanuel

All opinions are my own, and reflect those of the organisation i work for, even if not stipulated.
Posted on: 12 November 2003 by Geoff P
quote:
I'd heard the Yamahas, Denon's, Arcams and Tag McClaren, and personally IMHO, the Naim one was the only one that really moved me. Most of the others actually gave me quite nasty ear ache after less than 5 minutes.



We all experience the joys of optimising placement of a "stereo pair" of speakers in our listening rooms. I guess most people just give up when it comes to trying to optimise up to 8 speakers as a group. In all honesty the "surround L & R & the surround back & sub" end up in logical spaces and the "center" really only has one place to go. I have moved house 2 times (not for HiFi reasons I add) since starting with multichannel, and finally hit third time lucky. The current mix of speakers, room dimensions and construction and amps seem to have come together in a "room size" sound field which I can listen to for hours without any fatigue. The two previous experiences were not as happy which highlights why multichannel sound can "run and run" as a debating subject.

quote:
Personally, I think the AV2/175 has the edge performance wise, but I am very pleased with the results as mentioned, and have no difficulty watching two, or on the very odd ocassion three movies in a row and have had no problems with listner fatigue at all.



I agree that the AV2/175 has the potential to sound great. However based on the above comments I settled for a considerably less expensive solution (actual cost excluding speakers 500GBP w discount etc.). Now that I have a configuration that I believe sounds good I will wait for funds and then revisit the all Naim solution since now I feel comfortable with the investment.


quote:
BUT, you should take care of the deinterlacing (progressive scanning), those of you who have hi-end TV sets or are using separate scalers, most (if not all) of these units have far better deinterlacing algorithms than those included in the DVD players. In these cases, it is better to disable the progressive scanning of the DVD player.



Interesting point. I have a Panasonic Plasma. Presumably the de-interlacer in that would be up to the sort of quality you are talikng about Manu?
My DVD player (Pioneer 939A) has the option to output non-progressive component so I will try your suggestion and see.

regards
GEOFFP
Posted on: 12 November 2003 by NigelP
Denon hum

Geoff - I'm not sure why you got hum with the 3803. I definitely do not experience this with the AVC-A1SR.

Equally, I do not experience left/right mix up. I really cannot fathom why this should happen at all.

Lastly, the Naim AV2 is definitely sonically better than what I have in place - there is no doubt about that. What I traded off, however, was slight loss in sound for a much reduced cost. In order to complete the picture using Naim I would have needed to pay £2200 for the AV2, £1800 for the NAPV 145 and about the same for a NAP 250 for the rears. This all without the DVD player at a cost of around £2000. So, by my reckoning this lot added up to around £7800. I was very lucky and paid half that for what I view as a very good solution. I did get fatigue before I learned how to set the processor up correctly. My NBLs are far better at producing bass down to 40Hz than any subwoofer can so I disabled the THX option and asked the processor to output signals only below 40Hz to the M&K subwoofer. The result was no more fatigue and geniune jaw dropping, feet tapping music from my DVDs. My guess is that, no matter what Naim system you have, trying a AV alternative to Naim to power centre and surround will surprise you! Have fun.

Nigel
Posted on: 12 November 2003 by Johns Naim
Hello All

Well I am at a loss to understand the channel reversal scenario as well, so can offer little there unfortunately.

The Sony A/V processor and amp both use 'star earthing' similar to Naim, and hum has not been a problem, thank goodness.

Heh, I think we're all perfectionists in one way or another, and undoubtedly the all Naim route is the ultimate way to go, however Naim, as with other UK manufacturers are a bit up against it cost wise in some overseas markets given rate of exchange, import duties etc, compared to equipment where the currency exchange etc is more favourable.

My Sony DVD, A/V processor, and 5 channel amp. came in at just under half the AUS $$ required to fund an AV2/175 alone. That enabled me to fund a new computer, plus change, which improved the overall quality of my life quite a bit, and the extra funds came in handy to replace the rear speakers which I needed to do a few weeks back.

Heh, I must sound like I'm griping; not really, I'd love the Naim A/V solution - but I just wish it wasn't so expensive, as the results for the outlay don't measure up to what can be achieved with Naim in two channel IMHO.

One day, I'd like to do the all Naim A/V if possible, however going active with my two channel system is a greater priority for me. In the meantime, I hope to add an Access centre, and a sub when funds allow, which will complete the setup.

One thing I do like about the Sony though, albeit at first I thought it might be a gimmick, is the flexibility and tailoring of sound the processor allows. Before finalising a purchase, I downloaded all the instruction manuals for the various models I was interested in, which was quite telling in the way that a sales brochure is not.

The unit has a 32bit SHARC processor, which does the main decoding for DD, DTS etc, plus two more Sony 32bit LSI's. One of these adds the so called Cinema modes, which appears to be basically digital reverb - supposedly the acoustics of various Sony mixing theatres, and the other applies a form of mixing/altering of phase etc, so as to create the impression of extra rear speakers, (up to five) wrapped around the sides at an angle of 30 degrees.

Additionaly, there is a parametric equaliser for each channel, and one can also adjust sound fields for sundry items such as wall hardness, position of rear speakers re height, and horizontal angle from the listening seat.

Very surprisingly, it all works exceptionally well.

True, the best sound overall, is auto format decode, i.e. 'direct' with no sound processing, however the sound fields whilst trading off slight softening of detail, and transient edge definition, offer a much more enveloping sense of wrap and ambience that can be quite beguiling on the right material.

I have to remind myself that the aim here is to recreate a movie theatre experience, not put one in a concert hall, AND one is dealing with a lossy compression system sound wise, so in that context, the sound modes make a lot of sense and work very well.

Certainly, whilst not up with the Naim as regards overall resolution, rythmn, and microdynamics, the ability of the Sony to recreate the impression of a large theatre space is comfortably ahead. Whether that is important or not is personal taste I guess, but personally I like the big ambient sound field and the sense of extra involvement it brings.

Anyway, end of rave - goodness, I'm in danger of turning into a Sony fanboy Eek

Warmest Regards

John... Wink

Populist thinking exalts the simplistic and the ordinary
Posted on: 13 November 2003 by Geoff P
The channel reversal thing I have mentioned is no big deal it is just there.

John's comment about the star earth in the Sony may explain why the problem of earth loop hum I had with the Denon went away with the Sony when I first used it with my 112. At the time I also established with Naim that the unity gain function on the 112 was acheived in a different way from subsequent configurations and that after introducing it they had rethought and dealt with the potential hum issue. On the 282 which I now have, for example, this is not and should not be an issue.

Manu's recommendation about using the de-interlacer in the display (in my case plasma) rather than the one in the DVD player to create the progressive scan picture off DVD-V is excellent advise, at least in my case.
I tried it last night and found on close inspection that this gave a better picture (no detectable noise or flaws in a still image) through "straight" component out compared to "progressive" component out on the DVD player, which had visible flaws such as adjacent pixels being misinterpreted and giving incorrect or smeared color. I repeated this test with several image examples ranging in hue, black background level and complexity and got the above difference every time.
Incidentally the extra lines in the interlaced PAL output on R2 DVD-Vs (my DVD is too old to offer PAL progressive output) also makes for a pretty great image after de-interlacing at the display.

John
I agree with your description of the Sony DSP. Lots of sound fields to choose from but for Cinema the SONY 7 channel "studio" sound fields are the best. For music NO sound fieldsat all, just straight be it DD or DTS, is best.

regards
GEOFF
Posted on: 13 November 2003 by karyboue
The biggest problem for me is the difference of sound signature between HC preamp/proc and HiFi's especialy with Naim sound.
The better the HiFi preamp is, the worse the problem gets to your ears. Even with Naim only amps and same speakers, the sound is different between center and front. I'am really not convinced that If we don't get a Naim AV preamp it's really worth having a center channel.
(... and if your HiFi amp is better than your center and rear amps ? ...)

With a higher preamp than a 112, imagine how you can upgrade your "front system" if you give up the center channel. Will an upgrade of HiFi NAP or NAC or -CAP be better in a HC listenning than investing in a quality center speaker and amp ?
Posted on: 13 November 2003 by Geoff P
Karyboue

I started with a 112/HiCap/150 combo as my stereo and front channels. I now have 282/2xHiCap/new 250.
In HC mode both setup's have been run in "ünity gain" mode driven from my SONY A/V and both have given forth a dynamic and enjoyable sound. The 250 is of course deeper and stronger sounding than the 150.
During the transition from the 150 to the 250 I kept the 150 and used it to drive various HC channels in combination with the 250 on the fronts just to get a better idea what an all naim amplified HC system would sound like.

My conclusion was that for the surround channels the 150 really did NOT contribute any extra to the sound over that generated by the Sony surround amp. At the same time I experimented with "phantom center" mode where the center signal is redistributed to the fronts. DVD-Audio and SACD music disks typically sounded no different to better without a true center channel, in fact since I could switch the center channel in and out whilst continuing to listen I discovered that SACD mixes in particular and also a high percentage of DVD-A mixes do NOT have any sound coming out of the center channel even when it is enabled.
With DVD-V cinema a large portion of the sound generated thru'the center channel is voices to create the proper localisation effect. I find that for voice the ammp quality is not so critical so I have bcome very satisfied with the following approach.
For music use the "phantom "setting so all front channel sound is driven by the 250 and the SONY fills in the rear
For cinema use a real center driven by the SONY. IMHO, for me, the idea of buying a 145 for the center is not necessary to get enjoyment and the rear channels typically are well enough served by the A/V amp (which is not rubbish by any means) so are not crying out for naim amps either.

GEOFFP
Posted on: 13 November 2003 by Johns Naim
Hello All

Geoff, very interested to hear of your experiments and conclusions re using the 150 to drive your rears v's the Sony amps. It's great to hear some comments from another fellow Naimee Wink who also has gone down the Sony ES route re adding on A/V capabilities, as up to now I have not known anyone else who has done this Naim/Sony A/V combo.

Yes, I too like the Cinema modes - mainly I use Cinema B, or sometimes A, and for TV use etc, usually one of the Virtual sound fields.

However, if I'm playing 'demo' material, and want the last word in speed, focus, grip etc, I usually go with 'auto format decode'

I agree wholeheartedly with your comments re a center speaker, but overall I do find it a contentious issue, as in 'it all depends'

If I, have the 'hotseat' then arguably a center contributes nothing re improving localisation of dialogue. Conversely, if sitting off to one side, then yes it does.

However, from other set-ups I've heard, and via experimenting, I think a matching center is if not critical, certainly most desirable, re tonal timbre matching, and phase, transient response etc. Placement too is important, and can be an issue depending upon room constraints.

The other thing I feel makes a matching center speaker desirable, is that I find there is always a slight penalty to pay re transient edge definition, slight softening/masking of detail etc, whenever one uses DSP. I notice this when using the sound fields v's auto format decode, i.e. direct with no extra S/F processing. However, I also notice the same effect when using DSP to reroute signal to other speakers.

For example I set my rears to large, even though they only go down to around 48Hz or so. If I engage bass redirection to re-route the bass from the rears to the fronts, (which is done as I understand it by DSP) whilst that improves the overall mid to lower bass noticeably, it also softens the focus of the dialogue, and the aforementioned transient edges of sounds, clarity of detail etc.

Hence, given the tradeoff, I prefer leaving them set to large all round.

Of course, as I do not have a sub or center as yet, I have to make recourse to DSP signal re-routing to split the center into the L&R front channels, whereas I think a centre channel would improve things by obviating the need for such DSP signal manipulation. However, I catagorically do not like mismatched centers, as they take away more than they give IMHO from various set-ups I've heard.

Hence, I will be going for an Naim Access when funds allow.

Hope this helps a bit re the thorny question of center speakers

Warmest Regards

John...Wink

Populist thinking exalts the simplistic and the ordinary
Posted on: 14 November 2003 by NigelP
Hi All,

I just wanted to add my experience here to that of John's and Geoff's. I have tried a non-matched cheaper centre (a Mission 5C) which is very good in it's own right. I found that the issue isn't really one of when watching a film since, as already commented on, most of what comes out of the centre is dialogue. Don't assume that's all that is coming out however. In most films around 80% of the sound is coming out of the centre channel (including some music). Having said this though, I found that the 5C centre actually worked quite well with my NBLs either side. The noticeable difference, however, was during music playback - i.e. concert DVDs. I have two that I have been playing with at the moment - Eric Clapton which has a DTS mode and Ocean Colour Scene which has only Dolby Digital for the 5.1 sound. It is with these DVDs that you really appreciate the importance of matching the centre to the left/right channel at the front. I just kept noticing that, although sound was coming out without distortion, that there was something not quite right with the 5C centre in my Naim setup. When I put the Axess in, however, music was there and in abundance. Playing Clapton in DTS mode with the Axess reveals greater depth of voice and a uniform feel to drums and high-hats. I use large speakers on the AV amp all round and have set the bass cross-over to the subwoofer at 40Hz (but I think that I've said that in an earlier message). Going back to the 5C after experiencing the Axess (driven by the Denon AV amp) disappoints big time and I had to plug the speaker cable back into the Naim centre! As to the quality of the sound - brilliant. The Denon amp never loses grip of the Axess (and I am listening at very loud levels) showing that the amp has more than enough power and speed and that the speaker has a very well designed cross-over making it easy to drive. So in conclusion then.
  • Putting another AV amp into Naim setup is an option - and can be a good one at that.
  • It is important to match the centre speaker particularly if you plan on buying music DVDs.
  • The Axess is surprisingly easy to drive and, provided you have a centre pre-out on you AV amp, you can always add an improve mono amp later.
  • Nothing precludes you from moving to the Naim AV2 when you have built out your power amps for all channels
As usual, spending more on the source components applies here. So a better DVD player and AV amp will give you better left/right into your Naim. I have a 500/NBL combination and my Denon sounds very impressive through this so I am sure that it is possible to find matching DVD/AV amp combinations throughout the Naim hierarchy - enjoy trying to find the one that's right for you.