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Description
Dual op amp three times before the DC amplification empty board: compact double-sided FR4 fiberglass
board, the size of 26 ¡Á 26mm, suitable for small volume chassis assembly, to save space.
High quality PCB, Japan KOA 1 / 4W colored ring precision metal film resistors (error through far less
than 1%), high-quality eight-foot hole seat assembly for voltage feedback op amp, such as the NE5532,
OPA2134, OPA2604, AD826, OPA2111, etc., then ¡À 5 ~ ¡À 18 to work. Board leaving two mounting holes
for easy installation.
Classic line, although simple, spend a good op amp, such as the assembly with the gold seal OPA2111
enable voice but wide range, High Definition force, rich in detail, tonal balance, the sound quality
depends on the merits of the op amp's performance, resistance the accuracy and quality of the content
element is also power can not be the end. Change the negative feedback resistor value can change the
magnification. You can also put the assembly according to prefer different types of transport.
Package Included:
1PC*Dual op amp DC Pre-amp amplifier empty board
