Topping PA5 High-Performance Power Amplifier

The TOPPING PA5 is a fully balanced Class D power amplifier--an affordable and efficient option for powering your bookshelf or floor stand speakers. As a balanced amplifier, it powers each incoming channel with a separate amplifier chip. As a Class D amp, it uses far less power than Class A amps, making it super efficient.

Specs:

• Power input: DC38V/4.0A
• Signal inputs: Balance 1 (TRS), Balance 2 (TRS)
• Signal output: Speaking terminal (BTL output)
• Standby power consumption: <0.1W
• THD+N @1kHz (A-wt): <0.0005% @4Ω 5W / <0.0004% @8Ω 5W
• THD+N @No-wt (20kBW): <0.0015% @4Ω 5W / <0.0006% @8Ω 5W
• SNR: 124dB
• Dynamic range: 124dB
• Frequency response: 20Hz - 40kHz (±0.3dB)
• Output level: 65Vpp @RL=4Ω / 68Vpp @RL=8Ω 
• Noise @ A-wt: <16uVrms
• Channel crosstalk @1kHz: -106dB
• Input sensitivity: 2.6 Vrms
• Gain: 19.1dB
• Channel balance: 0.1dB
• Output impedance: <0.01Ω
• Output power
• 140W x2 @4Ω THD+N<10%
• 125W x2 @4Ω THD+N<1%
• 85W x2 @8Ω THD+N<10%
• 65W x2 @8Ω THD+N<1% 
• Adapter impedance: 3-8Ω
• Weight: 1.49lbs (0.68kg)
• Dimensions: 6.5 x 5 x 1.6” (16.6 x 12.9 x 4.1 cm)