A90 is a hi-fi 2-ch amplifier, this amplifier is consist of series hi-fi components such as audio special SMT E-caps, high accurate resistors and capacitors, hi-fi audio opamps and hi-fi power transistors.
Functions
2X90Wrms Class-AB amplifier.
2 ohm load stable.
Double Side PCB and SMD components.
Adjustable Input level, LPF, HPF.
Advanced short circuit, overload, over heat and low voltage protection.
Gold-plated isolation terminals.
Test Report
RMS output power @ 4ohm with THD+N
RMS output power @ 2ohm with THD+N
Bridged RMS power @4ohm with THD+N
Frequency Response (?-3dB frequency response: 17Hz~68KHz)
LPF response (LPF adjustable from 53Hz~820Hz)
HPF response (HPF adjustable from 53Hz~740Hz)
A90 Specifications
4 Ohm @14.4V RMS Power THD+N <0. 1%
90W กม 2CH
2 Ohm @14.4V RMS Power THD+N < 0.1%
110W กม 2CH
4 Ohm @14.4V Bridged RMS Power
180W กม 1CH
HPF Frequency
50~500Hz Adjustable
LPF Frequency
50~500Hz Adjustable
Frequency response
10Hz~25kHz
Channel separation
>89dB
Input Level
0.2V-5V
Buffered RCA output terminals
A Channel
Operating voltage
DC10V-16V
protection
Short circuit, Over-voltage, Reverse polarity, Thermal
High-grade Nickel-plated, heavy duty terminal block type connectors
