Topping PA3s Power Amplifier – Black

Here we have the tiny PA3s power amplifier from Chinese company Topping. Featuring Class D amplification this unit comes in good fully working condition with a couple of tiny blemishes – please refer to photographs. It is supplied in original factory packaging along with manual, power supply unit, mains cable and our regular three month warranty.
Topping Say….
PA3s is a high-performance desktop digital amplifier that supports RCA unbalanced and TRS balanced inputs. Maximum output power up to 80 W x 2 (4Ω), and a little body contains a huge amount of energy!
2xMA12070 Fully balanced Class D amplifier: Each channel of PA3s uses one MA12070 Class D power amplifier chip. This allows separation in layout improving performance and reducing crosstalk. The power is shared across two chips, the heat dissipation is also halved for each chip, improving reliability and extending the lifespan of the product.
High output power: PA3s could output 80W x2 at 4ohm load, 10% THD+N. In higher standard of THD+N of 1%, output power will be 65W x2 at 4ohm load. The output power is enough to drive any bookshelf speakers and even some floor speakers.
Balanced + Single- ended inputs: PA3s provides TRS balanced input and RCA single: end- ed input. The use of balanced input eliminates potential ground loop problems giving the pristinely clean audio without any hum.
With the help of a DAC, the function is expanded to a greater extent: PA3s can be used with a DAC to expand the categories of digital inputs; if used with a DAC+HPA, more comprehensive functions can be achieved.
“Comfort zone” with lowest distortion: The lowest THD+N of PA3s is in the range of 10 – 20 W output, which happens to be the power range commonly used for listening to music. Everything is just in the right condition.
Specifications:
Inputs: SE (Single Ended); BAL (Balanced)
Total Harmonic Distortion & Noise: < 0.004% @ 8 Ω, 5 W
Signal to Noise Ratio: 107 dB (SE); 112 dB (BAL)
Dynamic Range: 107 dB (SE); 112 dB (BAL)
Frequency Response: 20 Hz to 40 kHz (± 0.1 dB)
Output Power: 45 W @ 8 Ω; 80 W @ 4 Ω
Dimensions: 120 (W) x 168 (D) x 40 (H) mm
Weight: 740 g