[Jukebox-list] Ami Continental Tweeter distortion...

[Nigel Pugh]

Hi,

Just read this one.

Continental 1 should have a horn as opposed to a tweeter. To you know if it
is the original horn, or a modern day piezo replacement ?

If it's a piezo replacement, you will need to connect the 2 wires to
different tags on the amplifier auxiliary speaker outputs, as opposed to
connect directly to the wires of the original horn.

Is it a lack of bass that is accentuating the high frequency output at all ?

Tey connecting a hi fi speaker to the output terminals on the amp, and see
if it sounds ok through that speaker. That should eliminate speaker issues
(and crossover - have you checked connections there) from amp/cartridge
issues.

On the subject of the arm, the C1 does have the helper spring. If the shrill
is only at certain points in the record then it could be that, the cut off
switch, or tone arm cables binding a bit (replace them if original).
But my money is on speaker wiring / the treble speaker itself and its
connection, amp. Parallel your cartridge wires up i.e. join l+r + together
and l+r - together.

Hope that helps a bit,

Nige

-----Original Message-----
From: jukebox-list-bounces at lists.netlojix.com
[mailto:jukebox-list-bounces at lists.netlojix.com] On Behalf Of Ron Rich
Sent: 05 September 2007 16:54
To: Jukebox mailing list
Subject: Re: [Jukebox-list] Ami Continental Tweeter distortion...

Daniel,
  Just a thought, or two--If it sounds crisp at times, I might think the
problem might be one or more of the following---needle tracking pressure?
Also be sure that the tone arm is not "pulling" the needle to one "side" of
the NPAC. The arm MUST be totally free to follow the grooves in the record.
Mounting angle of the NPAC?
  I can't re-call, does the tone arm have the "helper spring", or is it
supposed to have it, on that model?  If it sould be there and is not, that
will affect the tone arm movement. The tone arm wire is always suspect too.
Be sure it has not become too stiff.
  Hope that helps. Ron Rich

Daniel Gray <dj_daniel88 at hotmail.com> wrote:
  Hi everyone,

I've got an ami continetnal 1 which is in its very final stages of 
restoration, but I want to fix this problem before I put it back together. 
When playing most records at some stages the tweeter sounds very bright and 
shrill on some frequencies. At first I could not tell if it was cabinet 
vibrations or the tweeter, but I figured out it was definately coming from 
the tweeter.

The amp has been rebuilt, and the cartridge has been changed to a Pickering 
NP/AC (if thats important?). I was going to take it to a speaker re-coning 
place but thought it would be better if I asked here first, in case it could

be something else. Anyone got any ideas??

Thanks,
Daniel

_________________________________________________________________
Advertisement: It's simple! Sell your car for just $30 at CarPoint.com.au 
http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fsecure%2Dau%2Eimrworldwide%2
Ecom%2Fcgi%2Dbin%2Fa%2Fci%5F450304%2Fet%5F2%2Fcg%5F801459%2Fpi%5F1004813%2Fa
i%5F859641&_t=762955845&_r=tig_SEP07&_m=EXT

_______________________________________________
Jukebox-list mailing list
Jukebox-list at lists.netlojix.com
http://lists.netlojix.com/mailman/listinfo/jukebox-list


       
---------------------------------
Looking for a deal? Find great prices on flights and hotels with Yahoo!
FareChase.
_______________________________________________
Jukebox-list mailing list
Jukebox-list at lists.netlojix.com
http://lists.netlojix.com/mailman/listinfo/jukebox-list