The Topping PA5 II amplifier is a compact and powerful model, featuring a fully balanced design and innovative Class D amplifier circuitry, allowing for significant power of 2×100 Watts into a 4Ω load with low distortion. Excellent parameterization performed by the company’s engineers ensures clear, clean and deep sound reproduction without extraneous noise. At 5 W power and 4 ohm load, the THD+N level is less than 0.0004%.
The PA5 II also features effective and comprehensive protection circuits against overvoltage, undervoltage, short circuit, overcurrent and overheating.
Input features a choice of single-ended stereo RCA or two 6.35mm TRS jacks for balanced input. Output is via regular speaker terminals with banana plugs. A 12V trigger is located on the back of the device, allowing the PA5 II to be connected to other devices for automatic on/off operation.
Characteristics of Topping PA5 II:
- Item Type: Amplifier
- Amplifier Type: Class D
- Inputs: Single-ended stereo RCA/balanced Jack 6.35mm TRS
- Output: Speaker terminals
- Trigger: 12 V Balanced input measurements THD+N (@ 1 kHz, A-weighted): < 0.0003% into 8 ohm 5 W load.
- THD+N (@ No-Weighted, 20kW): < 0.0006% @ 8 Ohm 5 W
- SNR: 124 dB (@max output, 1 kHz, A-Weighted)
- Dynamic Range: 124 dB (@ 1 kHz, A-weighted)
- Frequency response: 20 Hz – 40 kHz (±0.3 dB)
- Output Level: 65 Vpp @ 4 ohms / 68 Vpp @ 8 ohms
- Noise: < 15 µVrms (including A)
- Crosstalk: -106 dB (@ 1 kHz)
- Input sensitivity: 2.6V rms
- Gain: 19.2 dB
- Channel balance: 0.1 dB
- Output Power: 2×100 W @ 4 ohms, THD+N 2×100 W @ 4 ohms THD+N 2×85 W @ 8 ohms, THD+N 2×65 W @ 8 ohms, THD+N Single-ended input measurements THD+N (@ 1 kHz, A -weighted): <0.0004% @ 8 ohms 5 W
- THD+N (@ No-Weighted, 20kW): < 0.0006% @ 8 Ohm 5 W
- SNR: 121 dB (@ offset max, 1 kHz, A-Weighted)
- Dynamic Range: 121 dB (@ 1 kHz, A-weighted)
- Frequency response: 20 Hz – 40 kHz (±0.3 dB)
- Output Level: 65 Vpp @ 4 ohms / 68 Vpp @ 8 ohms
- Noise: < 15 µVrms (including A)
- Crosstalk: -90 dB (@ 1 kHz)
- Input sensitivity: 1.3V rms
- Gain: 25dB
- Channel balance: 0.1 dB
- Output Power: 2×100 W @ 4 Ohm, THD+N 2×100 W @ 4 Ohm THD+N 2×85 W @ 8 Ohm, THD+N 2×65 W @ 8 Ohm, THD+N
- Supply voltage: DC 38V 3A
- Power consumption: <0.5W
- Dimensions: 129x166x41 mm
- Weight: 680 g
- Color: black or silver
