Nava sound issues

Discuss Nava construction and related issues

Nava sound issues

Postby cptmoustache » Feb 22nd, '21, 15:06

Hello there,

A friend of mine passed away and left me his Nava. We had already used it several times and it was working fine, except the accent. PSU was lost so I bought a new one which I think is OK.
Sequencer is running, all seems fine but I got no sound at all except "clicks" corresponding to my step trigs when I put my mixer's gain at a very high level. Same behaviour on the master and individual outs. No mutes, volume is OK...

I plan to install the SH Mux Boards for accent improvement.

Firmware is 1.028.

I'm not a DIYer and have not much skills with soldering, schematics and components.

Maybe I'm missing something?

Recording of that clicks corresponding to step trigs:
https://www19.zippyshare.com/v/lihtkBSF/file.html

PSU:
https://i.ibb.co/86rm6nS/153231774-2585 ... 6445-n.jpg

I also noticed that the potentiometers weren't soldered:
https://i.ibb.co/n1VfRbg/153100400-1457 ... 8662-n.jpg
https://i.ibb.co/rbHDVtr/154061801-1145 ... 9747-n.jpg

The Nava:
https://i.ibb.co/0GHwngF/152730700-2772 ... 2819-n.jpg

Thank you!
cptmoustache
 
Posts: 3
Joined: Feb 22nd, '21, 13:52

Re: Nava sound issues

Postby secrethero303 » Feb 23rd, '21, 03:13

That is not the correct PSU. The one you have is 15V AC/DC. What you need is 15V AC/AC. Start by changing that and then see what it sounds like first.
secrethero303
 
Posts: 30
Joined: Oct 2nd, '16, 13:34

Re: Nava sound issues

Postby cptmoustache » Feb 24th, '21, 12:10

Wow I haven't noticed that, my bad, I've just bought a new one, I'll let you know! Thank you!
cptmoustache
 
Posts: 3
Joined: Feb 22nd, '21, 13:52

Re: Nava sound issues

Postby cptmoustache » Mar 4th, '21, 17:13

Hello, the problem was the PSU, all is working except accent. My Nava is 1.02 board, is that normal that I haven't got any accent at all given that I don't have the SH Mux boards (yet)?

I noticed another problem with the master output:
Drums are a little overdriven with a strange behaviour on the clap sometimes, like a phaser, etc. I removed R469 and R470 but same issue.
With individual outs, drums are perfect, really deep.

Kick on master:
https://www106.zippyshare.com/v/Z6mWm0nj/file.html

Kick on individual:
https://www106.zippyshare.com/v/mcyXO0jt/file.html

You can clearly hear the difference.

And different waveforms:

Kick https://i.ibb.co/ctfVhPG/kick-nava.png
Snare https://i.ibb.co/3SF4gbW/snare-nava.png
LT https://i.ibb.co/NC5CKpX/LT-nava.png

etc...

Thanks.
cptmoustache
 
Posts: 3
Joined: Feb 22nd, '21, 13:52

Re: Nava sound issues

Postby Dav1K » Mar 4th, '21, 20:14

I think I maybe having the same issue.

Here's a capture of my Kick Drum waveform from my oscilloscope.

Image


Doesn't look right at all!

Any ideas?
Dav1K
 
Posts: 4
Joined: Jun 4th, '20, 09:08


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