Hello, can anybody list the changes during manufactoring the 250, like it is done in the FAQ for the 52.I could not find it.
best regards
Tom

Hi Thomas.

This is what they have on the Naim Audio product history page:

1975 Introduced
1980 New Case
1989 New Look
2002 Upgraded and New Look

Is that what you're after, or do you need more detail?

J

the chrome bumper 250 changed from holder and fischer (sp?) transformer to a different one. Some claim that the older one is better, but...

I dont know of any changes after that.

Mains and XLR sockets were changed during CB era.
Did they do a bolt together case one with the transistors on the back ala 160?

quote:

the chrome bumper 250 changed from holder and fischer (sp?) transformer to a different one

Jon
I'm pretty sure the first olive 250 came in with H&F...IIRC it was in 1991-92 H&F went down..

you could well be right

Danes don't lie...

at first, thank you all.
I try to update my 140 to a sh 250. I have a offer of a chrome bolted one.
So i look for the details. I read that there were any changes during the time ( new transistors/ circuit layout/ transformators ).

Maybe that one of the moderators of naim can help.

best regards
tom

chrome bolted will be a very early one -- best check with Naim HQ that they can service it still

The Holden&Fisher transformer change happened later than the CB look, my Olive 135's have H&F transformers.

Best to listen to it. I have had a few 250's in my system and have also auditioned a few. What I can say for sure is that the more recent models sounded better. This could of course be co-incidence at work.

Best of luck in your search, believe me, it will
be well worth it.

Bob

The 250.2 is def. very good and proably my preferred. next is the CB or early olive, never liked the later 250 that much

No problem servicing any vintage of NAP250, even the earliest "bolt together" variety.

There have been lots of detail changes throughout the life of the NAP250, too many to list here but you might wish to check out an article that appeared in an early issue of HIFI+ where Paul Messenger covered the important ones.

The Holden & Fisher transformer was replaced with the Nuvotem one (Nuvotem took over H&F) around 1993.