Linear Power supply Input voltage: AC110V or AC220V for choose
Preamp works voltage: DC24V
Size: 102 * 225 * 55 mm (W*L*H)
（Preamp and the PSU with same size)
preamp default gain is 11 times
time aligned filter -> volume -> gain board
with two buffered 729 time circuit ;
Transistor Using the latest original machine used 2N5087 / 2N5089;
Left and right channel split design, in the layout beyond the original machine. with the linear Power suppy.
This preamp sound is much more better.
Main materials：
1: Original 2N5087 / 2N5089 highest grade Transistors, high-precision resistors
2: Origial Japan ALPS 27 type volume Potentiometer.
3: High quality linear power supply
4: Taiwan pure copper gold-plated high-quality RCA socket.
5: Full aluminum chassis + Solid knob
Package include: Finished 152 preamp X 1
Linear Power supply X 1
30mm DC cable X 1
