OBERHEIM SYNTH

Hi

I've just purchased a Matrix 1000 and thought I'd join the list as I 
have a couple of questions.

Firstly, I've noticed that the power supply makes a lot of noise. I 
wondered whether this was common with the matrix 1000 and, if so, 
whether anybody knows where I could get a (quieter) replacement part?

Secondly, I opened up the unit (to investigate the noisy psu) and 
found that the main board has been modified slightly. Basically the 
chip next to the timers, which I believe handles midi communication 
(according to the information on this page: 
http://wolzow.mindworks.ee/analog/m1k.htm), has a wire soldered 
between one of its legs and the legs of another chip next to it. 
Doesn't seem to affect the unit in any way but I was curious as to 
why it's there. Anyone have any ideas?

Regards, 

Rob

It is "well-known" that some of the black models are noisy. The white 
model is newer and has been reported to be quieter. Which do you own?

In fact, I have a white version, which in my opinion is a little 
noisier than my other similar, but quiet white version. I think it is 
best to keep the volume at least quite near to maximum level and then 
adjust a suitable level on the mixer.

You could try a hum eliminator. It might work. See: 
http://www.psrtutorial.com/forum/index.php?topic=1722.0

Cheers,
Tiitu.

> It is "well-known" that some of the black models are noisy. The white 
> model is newer and has been reported to be quieter. Which do you own?

I own two black models. The differences between them are striking. One, the noisier, has a more resonant filter! The quiet one is quiet, but lacks vim.

-m@

I have one white and two black ones. None of them hum (referring to the noise that PSU transformers sometimes make). I cannot detect any noticeable 

Hi Tiitu

Mine's the black model. There is some hum on the
audio output but the noise I was referring to is
the actual power supply, which seems to 'vibrate'
quite loudly - much more than my other gear
anyway.

I've got the unit going into an effects processor
before it gets to the desk so the hum on the
output hasn't been a problem as I've got it gated
out but I'll look into your suggestions regarding
that, thanks.

Rob

--- envia94 <akva@...> wrote:

> It is "well-known" that some of the black
> models are noisy. The white 
> model is newer and has been reported to be
> quieter. Which do you own?
> 
> In fact, I have a white version, which in my
> opinion is a little 
> noisier than my other similar, but quiet white
> version. I think it is 
> best to keep the volume at least quite near to
> maximum level and then 
> adjust a suitable level on the mixer.
> 
> You could try a hum eliminator. It might work.
> See: 
>
http://www.psrtutorial.com/forum/index.php?topic=1722.0
> 
> Cheers,
> Tiitu.
> 
> 
> 
>  
> Yahoo! Groups Links
> 
> 
> mailto:oberheim-fullfeatured@yahoogroups.com
> 
> 
> 



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Rob, if I were you, I'd let the power supply replaced or buy an other 
M1000 - if the noise is really disturbing. An other possibility would 
be to use a filter to cut the noise out, if possible.

Good luck!

Tiiru

--- In oberheim@yahoogroups.com, Robert Cary <rob_kari@...> wrote:
>
> Hi Tiitu
> 
> Mine's the black model. There is some hum on the
> audio output but the noise I was referring to is
> the actual power supply, which seems to 'vibrate'
> quite loudly - much more than my other gear
> anyway.
> 
> I've got the unit going into an effects processor
> before it gets to the desk so the hum on the
> output hasn't been a problem as I've got it gated
> out but I'll look into your suggestions regarding
> that, thanks.
> 
> Rob
> 
> --- envia94 <akva@...> wrote:
> 
> > It is "well-known" that some of the black
> > models are noisy. The white 
> > model is newer and has been reported to be
> > quieter. Which do you own?
> > 
> > In fact, I have a white version, which in my
> > opinion is a little 
> > noisier than my other similar, but quiet white
> > version. I think it is 
> > best to keep the volume at least quite near to
> > maximum level and then 
> > adjust a suitable level on the mixer.
> > 
> > You could try a hum eliminator. It might work.
> > See: 
> >
> http://www.psrtutorial.com/forum/index.php?topic=1722.0
> > 
> > Cheers,
> > Tiitu.
> > 
> > 
> > 
> >  
> > Yahoo! Groups Links
> > 
> > 
> > mailto:oberheim-fullfeatured@yahoogroups.com
> > 
> > 
> > 
> 
> 
> 
>       ___________________________________________________________ 
> Yahoo! Mail is the world's favourite email. Don't settle for less, 
sign up for
> your free account today 
http://uk.rd.yahoo.com/evt=44106/*http://uk.docs.yahoo.com/mail/winter
07.html
>

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-----Original Message-----
From: "registr62@... [oberheim]" <oberheim@yahoogroups.com>
Sent: ‎27/‎07/‎2016 12:55
To: "oberheim@yahoogroups.com" <oberheim@yahoogroups.com>
Subject: [oberheim] Matrix 1000

  
Hi!


I have a Matrix 1000 and I would like to find out more! 

Thank you!