Model D Reissue Noise Level

Tips and techniques for Minimoog Analog Synthesizers
User avatar
Gladmarr
Posts: 141
Joined: Fri Aug 27, 2010 7:47 pm

Model D Reissue Noise Level

Post by Gladmarr » Wed Aug 23, 2017 12:49 pm

I am the proud owner of a slightly used reissue Model D. It's in great shape and everything seems to work properly except the noise generator. I have no experience with the Model D reissue or original, so this might be normal. The noise volume (pink or white) is nowhere near the volume level of the oscillators, and it seems like it should be higher. Does anyone know if this is normal or if I have a problem? Thanks!
Image

User avatar
till
Posts: 1114
Joined: Tue Nov 22, 2005 6:17 pm
Location: south-west Germany
Contact:

Re: Model D Reissue Noise Level

Post by till » Wed Aug 23, 2017 5:50 pm

The noise of my 2017 Minimoog is lower in volume than on my 1979 Minimoog.
keep on turning these Moog knobs

Sequence:
Prodigy * Minimoog (1979) * Voyager * MF102 * MF103 * MF104z * MP201 * Taurus 3 * Minitaur * Sub Phatty * MF105 * Minimoog reissues with MUSEs * One

User avatar
Gladmarr
Posts: 141
Joined: Fri Aug 27, 2010 7:47 pm

Re: Model D Reissue Noise Level

Post by Gladmarr » Wed Aug 23, 2017 9:12 pm

till wrote:The noise of my 2017 Minimoog is lower in volume than on my 1979 Minimoog.

Is it low enough to be a problem? I'm not sure if mine is a "problem" just yet. I might open it up and see if something is wrong (if it's possible to SEE if something is wrong).....
Image

User avatar
till
Posts: 1114
Joined: Tue Nov 22, 2005 6:17 pm
Location: south-west Germany
Contact:

Re: Model D Reissue Noise Level

Post by till » Thu Aug 24, 2017 4:20 am

For me it is only a problem, that some sounds need to have different mixer settings compared to my 1979 Minimoog and a friends vintage Minimoogs. And the red noise modulation is slightly lower in max modulation amount. This is a minor problem, but well noticeable if you do an A-B comparison with vintage Minimoogs.

So all in all it is just a minor thing.
But maybe your noise is even lower than my noise level.
keep on turning these Moog knobs

Sequence:
Prodigy * Minimoog (1979) * Voyager * MF102 * MF103 * MF104z * MP201 * Taurus 3 * Minitaur * Sub Phatty * MF105 * Minimoog reissues with MUSEs * One

User avatar
Gladmarr
Posts: 141
Joined: Fri Aug 27, 2010 7:47 pm

Re: Model D Reissue Noise Level

Post by Gladmarr » Thu Aug 24, 2017 3:28 pm

I did get a private message stating that "the noise level is supposed to be about the same volume as 1 oscillator set to triangle wave with nothing else enabled in mixer section...."

This is basically true with mine, so maybe I'm just nuts. In looking into this, I did notice that the external input normaling to the output for overdriving the filter is NOT working, so maybe there still is a problem. I think I might have to contact MOOG for this one.
Image

captainkidd
Posts: 85
Joined: Thu Jan 21, 2016 11:56 pm

Re: Model D Reissue Noise Level

Post by captainkidd » Thu Aug 24, 2017 6:44 pm

I think the low noise level was brought up in the past and that someone from Moog said that was normal (at least for the Reissue). I do concur that it does seem to be on the low side and it would have been a little nicer if it ran with a bit more higher gains. But overall so far it hasn't been to big of an issue for me that is.

User avatar
Gladmarr
Posts: 141
Joined: Fri Aug 27, 2010 7:47 pm

Re: Model D Reissue Noise Level

Post by Gladmarr » Fri Aug 25, 2017 12:35 pm

Currently discussing both issues with Adam from Moog. Very quick to respond. Hopefully they'll either have a fix or put my mind at ease that there is no actual problem at all.
Image

User avatar
black_label
Posts: 19
Joined: Wed May 25, 2016 4:47 am

Re: Model D Reissue Noise Level

Post by black_label » Sun Sep 03, 2017 4:45 am

I noticed that my noise level (on my 2017) is a lot lower than the oscillator volume and not really great for making those swooshy, noise-based patches like on my Sub37. Glad I'm not crazy at least, though I'd love it if it had an even noise level.
-------
Model D, Sub37, Minitaur & some Moogerfoogers

User avatar
MC
Posts: 2874
Joined: Tue Aug 12, 2003 2:20 pm
Location: Secluded Tranquil Country

Re: Model D Reissue Noise Level

Post by MC » Sun Sep 03, 2017 8:28 pm

On the vintage ones there's a trimpot for adjusting the noise level, it is on the power supply board, lower left. No idea if it is the same location on the reissue.
Gear list: '04 Saturn Ion, John Deere X300 tractor, ganged set of seven reel mowers for 3 acres of lawn, herd of sheep for backup lawn mowers, two tiger cats for mouse population control Oh you meant MUSIC gear Oops I hit the 255 character limi

User avatar
till
Posts: 1114
Joined: Tue Nov 22, 2005 6:17 pm
Location: south-west Germany
Contact:

Re: Model D Reissue Noise Level

Post by till » Mon Sep 04, 2017 4:33 am

MC wrote:On the vintage ones there's a trimpot for adjusting the noise level, it is on the power supply board, lower left. No idea if it is the same location on the reissue.

As there is due to the external PSU for sure not the same power supply board, it is relocated. But finding a transistor with an open leg and trace the ciruits to find a trimmer should be possible. But of cause, this means opening the Minimoog and maybe undue a board or two to get there.
keep on turning these Moog knobs

Sequence:
Prodigy * Minimoog (1979) * Voyager * MF102 * MF103 * MF104z * MP201 * Taurus 3 * Minitaur * Sub Phatty * MF105 * Minimoog reissues with MUSEs * One

_ADSR_
Posts: 4
Joined: Sat Sep 10, 2016 2:38 pm

Re: Model D Reissue Noise Level

Post by _ADSR_ » Mon Sep 04, 2017 8:33 am

I concur completely.

The Noise is too quiet. Try recording a slow-rise wind swell and the signal to noise ratio reveals hissing/static louder than the noise.

As soon as a hack is revealed I'll be implementing.

Not the end of the world or anything but it is too quiet.

User avatar
ummagumma
Posts: 388
Joined: Sun Aug 21, 2016 8:37 pm
Location: Canada

Re: Model D Reissue Noise Level

Post by ummagumma » Mon Sep 04, 2017 5:16 pm

interesting, ideally there would be a trim pot somewhere to adjust the noise level

User avatar
Gladmarr
Posts: 141
Joined: Fri Aug 27, 2010 7:47 pm

Re: Model D Reissue Noise Level

Post by Gladmarr » Sat Sep 09, 2017 1:03 am

Small update on my Model D: the noise level doesn't seem to be as much of an issue as I originally thought, but the output looped back to the external input bit is apparently. I got an RMA and I'm sending it back to the Moog mothership next week. Hopefully all will be well after it comes back.
Image

normhart
Posts: 18
Joined: Mon Jan 26, 2015 11:25 am

Re: Model D Reissue Noise Level

Post by normhart » Tue Dec 05, 2017 3:24 am

Don’t know about the reissue but on my 1977, it’s (noise level) one of the three trim pots on the power supply board on the right edge of that board when facing from behind. The other two are the + and - 10v pots.

User avatar
Gladmarr
Posts: 141
Joined: Fri Aug 27, 2010 7:47 pm

Re: Model D Reissue Noise Level

Post by Gladmarr » Tue Dec 05, 2017 8:40 pm

As it turns out.....

Image
Image

Post Reply