Sound Skulptor forums

Build help and troubleshooting => CP554 Diode bridge compressor => Topic started by: JPK on May 04, 2023, 07:04:42 PM

Title: Modification on CP554 for stereo work
Post by: JPK on May 04, 2023, 07:04:42 PM

We have made a modification to the CP554 which we recommend that you also do.

In the current version, it is the channel with the lowest level that controls the sidechain.
To restore a more standard mode, simply cut off diode D12 on the right PCB and leave the spot empty.
This will make the loudest channel control the sidechain which is preferable.
No need to recalibrate.
The modification is recommended for mono use also.


Dans la version actuelle, c'est le canal avec le niveau le plus faible qui contrôle la sidechain.
Pour rétablir un fonctionnement plus standard, il suffit de couper la diode D12 sur le PCB droit et laisser l'emplacement vide.
Cela fera en sorte que le canal le plus fort contrôle la sidechain, ce qui est préférable.
Pas besoin de recalibrer.
La modification est aussi recommandée en mono.

Title: Re: Modification on CP554 for stereo work
Post by: JôjôC on May 05, 2023, 05:54:13 PM

Thank you,
Fixed in 5 minutes, very easy
Is better!

Merci,
Correction faite en 5 minutes, très facile.
C'est bien mieux!

Title: Re: Modification on CP554 for stereo work
Post by: Erik L on May 08, 2023, 10:21:15 AM

Great!
I believe this fixed the erratic behavior that bugged me.
I use the compressor on drum bus every mix👍.

Title: Re: Modification on CP554 for stereo work
Post by: NineSec on May 19, 2023, 08:24:41 PM

Hello,
Should we do this modification on both units?
Also for stereo operation, I imagine we have to link chanels 2 and 3 on the lunchbox (if plugged into 1-2 & 3-4)?

Cheers

Title: Re: Modification on CP554 for stereo work
Post by: JPK on May 20, 2023, 09:11:29 AM

Yes on all units, also for mono.

Also for stereo operation, I imagine we have to link chanels 2 and 3 on the lunchbox (if plugged into 1-2 & 3-4)?
Correct.