Activate DBLs

Posted by: Franz K on 24 October 2017

I plan to activate my DBLs run passive for years.  Obviously amongst other things I ll need a Snaxo 362.  The BMR version was made for the Ovator speaker.  Can naim adjust the BMR version that it will work with DBLs as well, or is just the "standard" Snaxo 362 my only choice.  My understanding is that the Snaxo BMR has a suspended chassis similar to the 552 and the superline.

Thanks for clarification,

Franz

 

Posted on: 24 October 2017 by hungryhalibut

You need the 362. 

Posted on: 24 October 2017 by jon h
Franz K posted:

I plan to activate my DBLs run passive for years.  Obviously amongst other things I ll need a Snaxo 362.  The BMR version was made for the Ovator speaker.  Can naim adjust the BMR version that it will work with DBLs as well, or is just the "standard" Snaxo 362 my only choice.  My understanding is that the Snaxo BMR has a suspended chassis similar to the 552 and the superline.

Thanks for clarification,

Franz

 

BMR is a two-way snaxo, not a 3-way. So no you cannot use it. 

DBLs run active are a significant improvement over passive. I run 6x135.

Quality of power supply to snaxo 362 is important - I run supercapDR

Posted on: 25 October 2017 by Allante93
Franz K posted:

I plan to activate my DBLs run passive for years.  Obviously amongst other things I ll need a Snaxo 362.  The BMR version was made for the Ovator speaker.  Can naim adjust the BMR version that it will work with DBLs as well, or is just the "standard" Snaxo 362 my only choice.  My understanding is that the Snaxo BMR has a suspended chassis similar to the 552 and the superline.

Thanks for clarification,

Franz

 

Well, you got the information you requested. 

The DBLs & Briks are True 3 Way Speakers, which require 3 Amps or as Jon, has a six pack of mono Blocks! 

Two distinct crossover points! 

Back in the Day I was Active with Linn, LK 280s, tanks they were, and no Humming, but I must admit, I do  prefer the Character of Naim Amps. 

Getting Long winded so! , being an Active Fan, I thought you might appreciate the following information I  had archived away from the Forum:

""GARRYBEARDIEMAN MEMBER

I have been active with Naim/Linn setup for over 25 years and worried about what to do with my ageing Linn Isobarik PMS speakers. I reviewed Ovator 600 active with NAP500's and hated the Ovators high end. Then reading an article on Vivid Audios speakers I researched and found excellent reviews of them and the fact they were designed by Lawrence Dickie. He was Chief Designer of active speakers at B&W in the 80's. He explained his new venture with Vivid Audio didn't include active speakers but, nevertheless invited me to his studio to listen to his speakers. Quite simply, they were fantastic sounding speakers, beautifully crafted. I was smitten by the Giya G2 and determined to have these active. Lawrence, wanted this too!  We agreed a price and he had an active pair made whilst liaising with Roy George at Naim for a modified SNAXO 362. The Giya G2 is a 4-way speaker, so it was a challenge. When complete, the result was a system sounding better than I've heard anywhere. The system is now

552/NDS x 2 DRPS/3 x 500 DR

if you contact Lawrence Dickie at Vivid Audio, he would help I'm sure. Of course, Naim now have the design specs for the SNAXO 362 (Vivid Audio).

At the time I bought my speakers only Giya G1 & 2's were available. Nowadays, the new Giya G3 is out there to much critical acclaim , as is most of the Vivid Audio range.

hope this helps.

Description: Four-way, five-driver, floorstanding loudspeaker with vented enclosure. Drive-units: 1" (25mm) aluminum-dome tweeter, 2" (50mm) aluminum-dome upper-midrange driver, 4.9" (125mm) aluminum-cone lower-midrange unit, two 5.5" (135mm) aluminum-cone woofers. Crossover frequencies: 220Hz, 880Hz, 3.5kHz. Frequency response: 36Hz–33kHz, ±2dB on reference axis. Frequency range (–6dB): 33Hz–36kHz. Sensitivity: 87dB/2.83V/m. Impedance: 6 ohms nominal, 4 ohms minimum. Harmonic distortion: <0.5% second and third harmonic over frequency range. Power handling: 800W program.

Read more at http://www.stereophile.com/con...#XZVs8yUjM3k0U9oq.99 ""

 

Laurence Dickie:

"I have always been a keen advocate of the active approach to loudspeaker design, believing that the direct connection between amplifier and voice coil offers the purest route and that the precision and linearity of active electronics give a clear advantage over passive alternatives. However for pragmatic reasons we felt it unwise to go to market with only active speakers. An important part of the design phase of the first Vivid Audio products was a re-evaluation of passive crossover design. It has to be said that the use of computer-aided circuit analysis has really changed the game. The accuracy possible to meet target responses while presenting a safe load is quite remarkable. This coupled with drivers which present constant impedances across a wide range of drive levels, non-polar film dielectric capacitors and air-cored inductors has permitted us to create passive designs which really challenge the active alternatives.""

With my Late Model Briks, Naim Power Supplies really came in handy! 

Naim PS has the ability to accept multiple amps, which allows the path towards an Active System With My Briks!

Not sure about DBLs.  

Well Franz K, Hope that info. was helpful!

Allante93! 

 

Posted on: 25 October 2017 by Franz K

Thanks chaps for all your responses.  I am well aware that Ill need 3x500s... coming along.  Never heared Ovators, but I am not inclined to them and certainly dont want to change my beloved DBLs.  With respect to PS, oh well, another SC then.  I was just hoping for that the BMR snaxo version could be retrofitted for DBLs. ..sighhh

Cheers,

Franz

 

Posted on: 25 October 2017 by ken c
Franz K posted:

.....  I was just hoping for that the BMR snaxo version could be retrofitted for DBLs. ..sighhh

Cheers,

Franz

 

there was a time when the idea of a floaty snaxo was 'floated' about for legacy speakers such as xBLs, but it turned out apparently, there wasnt enough demand to make this worthwhile for Naim and so us loyal customers with active systems had to accept second best  

enjoy

ken

Posted on: 25 October 2017 by jon h

To be fair to naim, I had hoped that it would require simply a few changes to the crossover components. But given that floaty snaxo is 2 way only, it would have required a complete new board. And it isnt possible to "float" the existing design due to the mounting points locations, board layout etc. Yes, I went through all of that with Steve Sells in person. 

Best thing you can do to a non-floaty snaxo 362 is supercap DR it. 

Posted on: 26 October 2017 by Franz K

Hi Jon

Oh I see,...actually I've just sent a mail to Steven Hopkins asking him if naim could come up with a custom made floating 362 snaxo. But after reading your post I probably know his answer already.  Let me ask you another question, You run active DBLs with a similar TT Setup as mine, ie LP12/Keel/Aro/xv1/radical.  Only difference is I use a SCDR/superline rather than Urica. In my case, would you rather switch to a Urica, which would allow me to use my SCDR on the Snaxo then, or get another SCDR?

Kind regards

Franz     

Posted on: 26 October 2017 by tonym

I wouldn't fret too much about the "Floaty" SNAXO Franz. With a DR SuperCAP powering the 362 into your DBLs you'll achieve a wonderful sound. With 3X 500DR amps, trust me, it'll be terrific!

Posted on: 26 October 2017 by Franz K

Hi Jon, hi Tonym

I just stumbled over your older thread on floaty snaxo from 2016 but hey...why spend a day in the library when you can learn the same thing by working in the laboratory for a month?

Cheers, Franz

Posted on: 26 October 2017 by jon h
Franz K posted:

Hi Jon

Oh I see,...actually I've just sent a mail to Steven Hopkins asking him if naim could come up with a custom made floating 362 snaxo. But after reading your post I probably know his answer already.  Let me ask you another question, You run active DBLs with a similar TT Setup as mine, ie LP12/Keel/Aro/xv1/radical.  Only difference is I use a SCDR/superline rather than Urica. In my case, would you rather switch to a Urica, which would allow me to use my SCDR on the Snaxo then, or get another SCDR?

Kind regards

Franz     

depends entirely on how well you get on with the SCDR/Superline.

Its worth trying powering the Superline with a standard naim power cable (as if it was a hicap) rather than the burndy. There have been issues with supercap + superline *when connected on burndy* having RF interference problems. 

If SC/SL/Burndy sounds better than SC/SL/Hicapcable then your SC/SL combo is fine. 

I believe that the potential issue on burndy was also affected by what loading plugs you use. But it was some years ago when I moved to Urika/radikal and its all a bit of a blur now. 

One reason I moved to urika/radikal was to get 45rpm on my linn, cos I had a naim PSU for it before which was 33rpm only. 

Posted on: 26 October 2017 by Franz K

All right, so I ve just placed an order for a regular 362 active crossover. Hopefully tomorrow Ill receive my original 500 back from service and DR upgrade together with my Nat01.  Luckily I am off work so Ill have plenty of time to do a complete re-setup of my system over the WE.  A second 500 which I ve just picked up s/h should follow shortly.  I ll then have the chance to compare the 500DR with the nonDR500 side by side before going fully active.   Probably  I wont go straight for a third 500, but may use a 250 as an interim third amp, and rather get another SCDR  for the Snaxo instead. 

Anyway, exciting but quite budget straining times to come..

Dani

 

 

Posted on: 26 October 2017 by Allante93

8

Franz K posted:

All right, so I ve just placed an order for a regular 362 active crossover. Hopefully tomorrow Ill receive my original 500 back from service and DR upgrade together with my Nat01.  Luckily I am off work so Ill have plenty of time to do a complete re-setup of my system over the WE.  A second 500 which I ve just picked up s/h should follow shortly.  I ll then have the chance to compare the 500DR with the nonDR500 side by side before going fully active.   Probably  I wont go straight for a third 500, but may use a 250 as an interim third amp, and rather get another SCDR  for the Snaxo instead. 

Anyway, exciting but quite budget straining times to come..

Dani

 

 

Naim debut it's Reference CDP:

2007 CES Show

CD 555/555PS

Middle of the road 282

2 SC 2

Snaxo 362

3 x 250.2

DBLs

The research I've done suggest the burndy & SC, along with the Snaxo, has oked the Wonky Active Systems without putting the best amp on the tweeter.

500DR on the Woofer

300DR on the Vocals/ Mid range

250DR on the tweeter.

Whatever floats your boat!

Allante93!

PS. What do you think Jon.?

 

Posted on: 28 October 2017 by Willy

Just off the phone with my dealer having ordered a Snaxo 362 for my DBLs. Hopefully here before Christmas. 

Willy.

Posted on: 28 October 2017 by Gazza

A very happy Christmas Willy.