• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

Unison Research C5P and P30K

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
I have a C5P preamp and P30K amp for sale in Germany.

Not a DIY but very easy to modify and upgrade for diyers. The C5P is one of the best preamps you can get for the price. After upgrading the coupling input/output caps you will hear one of the finest preamps you ve ever heard.
Upgrading the rectifiers, resitors and wiring will bring it to a higher level.
Take a look here:

Upgrading a valve pre: Unison Research C5P

Unison Research C5P valve preamplifier.
 

Attachments

  • IMG_0502.jpg
    IMG_0502.jpg
    192.6 KB · Views: 94
  • IMG_0504.jpg
    IMG_0504.jpg
    156 KB · Views: 89
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.