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

[Nigel Pugh]

When those horns go, they usually produce no sound at all, as opposed to
distort. Your crossover definitely needs sorting.
Make sure the horn wires are connected to the correct terminals on the
crossover. There is usually a High + - sticker.
I have seen quite a lot of continentals with butchered crossovers.

Nige

-----Original Message-----
From: jukebox-list-bounces at lists.netlojix.com
[mailto:jukebox-list-bounces at lists.netlojix.com] On Behalf Of Daniel Gray
Sent: 07 September 2007 12:27
To: jukebox-list at lists.netlojix.com
Subject: RE: [Jukebox-list] Ami Continental Tweeter distortion...

Hello!

I have plugged in a speaker to the amp and the noise is not there. So this 
has narrowed it down to speaker or crossover issues.

I have had a closer look at the crossover and the connection is held 
together by an elastic band. I took this off and realised the terminal is 
actually broken/loose. Without the elastic band I don't get sound through 
the horn. Could this be the problem?

It seems that the louder the volume, the distortion becomes more obvious. At

a low volume there is no distortion. This leads me to think that it is a 
problem with the horn itself...

What do you guys think?

Daniel


>From: "Nigel Pugh" <pughn at npsyssoft.force9.co.uk>
>Reply-To: Jukebox mailing list <jukebox-list at lists.netlojix.com>
>To: "'Jukebox mailing list'" <jukebox-list at lists.netlojix.com>
>Subject: RE: [Jukebox-list] Ami Continental Tweeter distortion...
>Date: Thu, 6 Sep 2007 18:05:27 +0100
>
>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%2F
a
>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
>
>_______________________________________________
>Jukebox-list mailing list
>Jukebox-list at lists.netlojix.com
>http://lists.netlojix.com/mailman/listinfo/jukebox-list

_________________________________________________________________
Advertisement: Make shopping exciting. Join eBay for free @ www.eBay.com.au 
http://direct.ninemsn.com.au/adclick/CID=02fda8540000000000000000

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