New caps?

This not only apply to NAIM, but to all HIFI unit. Only NAIM, i think, insist on it.

Emmanuel

When testing amps, i verify the current gain of each output transistor, i they are within the limits, ok; if not, i change them.
A transistor can have been over-stressed (by short circuit, defective speaker...). It still works, but its current gain has fallen. It creates an unnecessary stress on the preceding stage.

The legs are still strong, but the mind is not commanding them fast enough.
I desolder them, line them on a track, standing on their leads, with a new transistor. I say GO. The last one at the arrival line is killed, the second last is recycled (Good enough for many other brands).
If an old one is faster than the new, i test it on steroids, if negative i keep it for my own amps, if positive it goes in a Krell.

Emmanuel

[This message was edited by Manu on THURSDAY 08 November 2001 at 05:22.]

Redeye

Can't answer your question but why don't you give Chris Murphy a call @ Real Music in Wellington. He's the NZ Naim importer and a top bloke, he'll tell you all your need to know.

Did you buy the 180 second hand? It may have been re-capped already.

Jay

redeye

Changing caps gives more speed, more background details, cleaner bass. IMHO more music.

It can be more fatiguing with new caps (they need at least a one month run in period). Who says listening music is a passive occupation. Driving a Porche is more fatiguing than driving a Cadillac, but ....

Emmanuel

- reservoir capacitors
- power supply board coupling capacitors
- input transistors
- voltage gain transistors
- output transistors
- tantalum capacitors;

other conditional faults are often discovered by trial and error (i.e., training a service technician to avoid placing the wrong components in the wrong place–the dark side of experience).

Dave Dever, NANA

P.S. We replace output transistors in pairs, anyway...

The differential input (unselected) transistor pairs are matched in-circuit, by type, on all Naim power amplifiers.

Dave Dever, NANA

Prophesy's the second album, yes? I've got both of them and perfer the first "Second Skin", check it out if you dont' have it.

There's something really special about upgrading a pre-amp. The 102 will be a huge improvement over the 92 and for me the 102 was much better than the 72. Not everyone would agree with me on that one.

The good thing about the 102 (or bad - depending upon your budget!) is that it gets better with the digital power supply and a Flatcap or Hi-cap.

I have a 102 with Hi and 180. I don't know where you live (NZ's a pretty small place ) but if you're in Wellington you're welcome to come along for a listen or test something out.

Maybe you could help me optimise my Credos!

Jay

redeye ( I hate spending money on hifi ) :-)

Emmanuel

Cheers
redeye

And I'm not just saying that because I invested a bucket load of cash on it. Well I am actually!

Jason H - friendly question. Don't you ever wish that you could just say "damn it" and say the most Vukish (I'm copyrighting that by the way) statement? Instead of having to be so, "well it's got it's good points...".

It must be a little bit of a pain having a public persona at times.

Jay

Waiting for the next poster to say, "well if you had an 82 and......" (Steve T I'm watching you )

quote:

---

Jay,
Many thanks for the invite! I'm in ChCh myself. I have heard people say that a 102 is only OK until you Hicap and Napsc it. Theory being that a 72 on its own has a 'nicer' sound. Did you own a 72 prior to the 102? If so your views mucho appreciated........
Oh, I will check 'Second Skin'

---

Second Skin is $45 bucks on Smokecds.com - worth it though.

I'll email you on my 72 / 102 experience - gather I just remove the _'s?

Jay

And Manu, where the hell is the turntable??????

You already have it, isn't it?

Emmanuel

I'll look forward to it :-)

redeye