Details:

Based on Bryston BP26 preamplifier circuit.

Signal input: 3 groups of RCA+1 group of BAL

Output: 1 group of RCA and 1 group of BAL.

Input voltage: DC+/-24V and AC10-12V

Output delay circuit, the output signal does not pass through the delay relay contact, so as to minimize the sound pollution.

PCB size: 285*168MM

DALE resistors and BC resistors

Capacitors ：Philips BC axial hifi capacitors and Elna audio cap

Output delay circuit, the output signal does not pass through the delay relay contact, minimize the sound dye.

This preamp board completely no general DIY before the noise, bad sound, ugly feeling, the sound is very transparent atmosphere, with a sense of music, let unknowingly put the volume constantly open and do not feel agitated, the tone is full of beauty like true degree high, in fine detail, majestic when you want to atmosphere!

Note：

Diy Kit 1：PCB+resistance+Switch board PCB

Diy Kit 2:As the picture show ,Not included all capacitance ,XLR and RCA

Diy Kit 3: Full preamp board kit ,as the picture show !

Assembled Board 1:as the picture show ,not included XLR and RCA socket !

Assembled Board 2:as the picture show , included XLR and RCA socket !

Suitable PSU Board：Assembled mark psu board ，+-DC24V

Suitable transformer :https://www.ebay.com/itm/354443352748

Suitable chassis ： https://www.ebay.com/itm/354636766239