The AW Lingo mod - Linn's response:

Posted by: Alex S. on 29 August 2001

I had a little devil's advocate, hypothetical disussion about Andy's mod with Linn. Here's a paraphrase of what they said:

"We've done extensive side by side dems of this mod recently (I wonder if that's your fault AW). At first it seems as if a veil has been lifted, more transparency and detail, blah blah; but then it sinks in that the Lingo has become less musical." At this point I ventured: "So at first glance it seems an improvement but then it becomes apparent that it has had a damaging effect on the musical message then?". "Yes, exactly" they said.

So I purposely waited a few days to ensure that what they said about the musicality was bollocks and yes it was.

Interesting that they admit to an immediate sense of clarity and detail though.

Posted on: 29 August 2001 by Andrew L. Weekes
quote:
So I purposely waited a few days to ensure that what they said about the musicality was bollocks and yes it was.

Thanks for that, I like that mischievious streak.

It would be nice to think I've wasted the time of some Linn staff recently, call it revenge for the bloody Trampolinn that's been hampering my LP12 for years smile

It also gives me an indication of the current Linn and their priorities, when compared to the older Linn from days of yore.

The Trampolinn is another one - I've absolutely no doubt whatsoever it's a serious downgrade in my system, and most people using an LP12 on a reasonable stand will find the same - many others agree, but I bought the speil from my dealer and Linn for years.

Linn think it works in 'most' circumstamces, in their public face, yet choose not to utilise it during critical dem's (recent CD12 / LP12 demo).

Don't forget the mod was intended in the context of a Naim system, Linn are used to be very insular with their approach to Hi-Fi, and are likely to have tested it within an all Linn system, that probably has little sense of rythm anyway wink

No problem with that, I guess Naim would do the same, having confidence in their own products.

I've been struck by their constant message of 'pitch-accurate' HiFi in recent years. I think that they concentrate on this one aspect to the detriment of other, equally important aspects of music (rythm, timing etc.). I cannot deny their electronics is pitch accurate. The stuff I've heard would send me to sleep though, through boredom!

One wonders what the hell better Hi-Fi should do if improvement in detail (and surely, by logical extension, an increase in musical information) isn't 'Simply Better'. Providing the information is added coherently (and to my ears it most definitely is, I've lived with it long enough now) it cannot possibly be worse.

To my ears and a number of other people who've now tried the mod, it's a definite improvement.

Patrick Dixon discussed the sensitivity of Naim to mains related differences and I have to say it does seem puzzling at first.

The linear supply should achieve a high degree of isolation between mains and circuitry, increased again by the circuit's own PSU rejection.

My theory, is it's related to earthing, in particular noise induced upon the earth, in close proximity to the equipment, by the filters. They all have capacitors between mains and earth that may increase local noise on the earth. The magnitude of the effect would then, presumably, be related to earth impedance, so good local earthing could help.

A dedicated earth for the Lingo would help a lot too, if my theory is right.

Increasing isolation, by connecting the filters (electrically) more remotely from the equipment would help also, as the finite impedance of the ring main will, again presumably, reduce effects.

The equipment powered by the filter is also subject to an increase in mains impedance starting at audio frequencies so this could impact sound in amplifiers, not sure whether this is relevant to the Lingo specifically though.

I have a large, multi-pole, mains filter I made years ago that could provide some interesting data soon, I'll let you know the results if anyone cares roll eyes .

Andy.

Posted on: 29 August 2001 by Martin Payne
quote:
Originally posted by Andrew L. Weekes:
The equipment powered by the filter is also subject to an increase in mains impedance starting at audio frequencies so this could impact sound in amplifiers, not sure whether this is relevant to the Lingo specifically though.


Some of the newer members of the forum may be interested in these comment from the late Julian Vereker, founder of Naim, on the old forum:-


quote:
I have not delved into the whys, but when we were first forced to look in detail at the EMC regs and the effects on our designs, we found that the easy way to solve the mains borne interference was to use a mains filter. However the effect on the sound quality was disasterous, so we had to solve the problem at the source(s) inside the equipment.

A filter in one piece of equipment appears (electrically) across the mains supply to the whole system.

As I have said before, the simple fact of plugging in a Lingo (or more obviously) a CD12, one can clearly hear a degradation of the overall musical performance - (not using either of those components).

... The Lingo has the filter, the Valhalla is very noisy...


Interesting re the Valhalla - when was the last time you heard someone on the conference moan about one of those???


quote:
Just a little re-cap, it is the mains input filter in the lingo that seems to cause the problem, since it is not just enough to turn it off, it needs to be unplugged. This also applies to the CD12 to a greater extent - the difference here is quite shocking. julian


quote:
We have had quite a few calls recently saying that having a Linn CD12 plugged into the mains (same spur?) as the rest of a system on which a CDSll is being compared was clearly audible - adversely.

...

julian


Sorry, haven't found anything that actually explains why they're such a problem, though.

cheers, Martin

Posted on: 29 August 2001 by Chris Dolan
quote:
they did use a Trampolinned LP12 in that demo

....which apparently significantly outperformed the CD12 in most people's opinion.

So perhaps Linn still have their good points?

Chris

Posted on: 30 August 2001 by Andrew L. Weekes
I remember seomeone commenting that there were two LP12's used, one, I thought, didn't have a Trampolinn.

Makes one wonder how much better the LP12 would have been without it!

JChristophe,

See Linn Lingo - The Evil Within thread.

quote:
So perhaps Linn still have their good points?

If you have a Trampolinn Chris, and your LP12 is on a reasonable, lightweight stand or wall shelf, I urge you to try it without - you can then form your own opinion - I'm very confident of the result wink

Posted on: 30 August 2001 by Andrew L. Weekes
quote:
Interesting re: the Valhalla - when was the last time you heard someone on the conference moan about one of those???

Interesting question, I know from personal experience that ant effect the Valhalla has on other equipment is insignificant compared to the effect of the mains filter.

There's no connection to mains earth on the Valhalla, so any induced noise will be onto the mains live and neutral. It may be that the PSU's are better at rejecting this noise, supporting further my earth hypothesis.

It's an easy enough theory to check, I'll do it soon.

Andy.

Posted on: 30 August 2001 by David O'Higgins
Can somebody describe how to reverse the Trampolinn mod ?
Posted on: 30 August 2001 by Andrew L. Weekes
Re: reversing the Tramp.

You have two options: -

1. Remove the baseboard entirely - This will remove the Trampolinn, but also there is a general opinion, that myself (and Naim) agree on that it sounds better without anything on it's bottom!

Be careful, particularly if using a Valhalla, forget to unplug it from the mains, and place fingers in the wrong place will result in you launching the deck across the room to the shout of some suitable expletive.

2. Remove the Trampolinn feet from the baseboard and refit it.

Oh, make that three options..

3. Refit original board or newer laminate (non-trampolinn) board.

The newer laminate board is better than the hardboard one - honest.

Andy.

Posted on: 30 August 2001 by Chris Dolan
quote:
If you have a Trampolinn Chris, and your LP12 is on a reasonable, lightweight stand or wall shelf, I urge you to try it without - you can then form your own opinion - I'm very confident of the result wink

Andy

No I don't have a Trampolinn - I don't have the Cirkus modification either eek

My comment was just to put in a good word for Linn as I rather like my turntable.

Chris

Posted on: 30 August 2001 by Andrew L. Weekes
I've said it before, and I'll say it again, in case anyone thinks I'm a persistant Linn basher wink

My LP12 is the best thing I ever bought, has been used almost every day for the past 14 years, and I've never ever regretted buying it, It's fab and pretty much fired my interest in music-making Hi-Fi.

The comments above are purely from frustration, the relationship I've had with every bit of Naim kit I've owned is that as a company they always get it right, and that the compromises made are clearly defined. As a consequence my expectations are well managed and I have a brand loyalty that most companies would kill for. My personal experience, despite some of the comments one reads here, is that a new Naim product is always better, and that they are progressing in a direction that I wish to travel. Seems a lot of peeople like their path too.

Linn don't inspire the same confidence in me anymore, maybe it's just a communication problem (probably musical) smile

Andy.

Posted on: 30 August 2001 by Chris Dolan
quote:
I have a brand loyalty that most companies would kill for

Andy

I think most of us do.

There are very few current Linn products that I would be interested in, but the polarisation was probably inevitable.

If you have a Naim orientated system it is unlikely that a Linn product will suit it - including in my view cartridges (although I have not tried a Linto which might make a difference).

Chris

Posted on: 30 August 2001 by Chris Dolan
quote:
the LP12 is hard if not impossible to beat

James

I was not including the LP12 when I referred to Linn products I would not be interested in.

I do however think that Dynavector cartridges are far more suited to Naim electronics than current Linn cartridges.

quote:
I bet if Naim made a LS3/5A sized loudspeaker, all this fanaticism over the Kans will fade into oblivion as the faithful flock to the new mecca

Now there's a challenge - especially when you consider the performance of the current entry level Naim speakers.

Chris wink