915 Generation Low Noise OP AMP Preamplifier Board 5532 Input Preamp Base on Music Fidelity A1

Basic instructions
Dual 12-25V AC power supply 78157915 regulator on the board DC-powered
Basic specifications
PCB size 100x53cm
Processing technology KB class board high precision CNC machining

Plate thickness and specifications 16mm KB FR4 sheet
Change the amp
10K loaded 4K7 100K and not installed 4K7 position short-circuit or load 10 ~ 47 ohm resistor default hair level need to change the amp change resistance self match This circuit uses the English machine music fax A1 front and volume control of the original line easy assembly good impedance matching and volume adjustment advantages In terms of sound performance you can broaden the sound field increase the dynamics and increase the resolution
It is also possible to change the sound by replacing different dual opamps according to their preferences Most dual op amps can be used directly
Material plastic
Color as shown

Package Contents
1pc Music Preamplifier Board

Only the above package content other products are not included
Note Light reflection and different displays may cause the color of the item in the picture a little different from the real thing The measurement allowed error is - 1-3cm