
ZX8702
Power Amplifier - Dual-Channel Class-A

ZX8702 is a dual-channel, Class-A high-power amplifier purpose-built for acoustic and vibration measurement. It delivers clean, low-distortion output with excellent frequency response, making it ideal for calibration work, electro-acoustic device testing, and laboratory measurement setups.
OverView
ZX8702 is a dual-channel, Class-A high-power amplifier purpose-built for acoustic and vibration measurement. It delivers clean, low-distortion output with excellent frequency response, making it ideal for calibration work, electro-acoustic device testing, and laboratory measurement setups.
With dual input/output channels and multiple internal protection circuits, ZX8702 can be safely paired with signal generators, PC sound-card outputs, and a wide range of sound sources / shakers / loudspeakers for reliable, repeatable measurement workflows.
Features
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Dual-channel output for flexible test setups
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Class-A amplification for low distortion and stable performance
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Wide, flat frequency response for accurate measurements
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Low residual noise to preserve measurement integrity
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Protection circuits built in: short-circuit, over-temperature, over-voltage protection
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Works with common sources: signal generators, sound cards, and other excitation sources
Performance
Max Output Power
25 W / 4 Ω × 2 (50 W total)
Frequency Response
10 Hz – 20 kHz (±0.2 dB)
Total Harmonic Distortion (THD)
< 0.5%
Dynamic Range
> 90 dB
Residual Noise Voltage
< 0.5 mV (RMS)
Maximum Gain
20×
Working Hours