A DIY Pre-Amp Kit
Here are the basic at the moment idea we have.
MM,MC, MP3(special filter), CD, Pre Out and SECA Headphones, very similar to the one Alan Brown heard at TQ.
It is filled with SMD and the photos are the one Alan E. has used. and is using now.
As will see it has two pre-outs and two HP (SECA) outputs these can be set for up to 5W/ch so be warned.
The PSU can be run in Standby and have a small press to make switch to operate it.
Ribbon cable was used to connect the power to the pre.
Circuits and BOM to follow.
Also note the space behind the volume pot this will accommodate a IR Remote RX later, for the arm chair DIYers. (a contradiction of terms).
The MP3 uses a twin filter to emphasize the high frequency and the reduce them with correct phases and produce a much better sound the BW is held tight and flat 20Hz - 20KHz thus reducing clock crap and other unwanted signals.