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B-Stock product, (read below) in excellent condition with original packaging, 2 year warranty.
Topping PA5 Class D Balanced Amplifier 2x125W 4Ω
Fully balanced
The newly developed Class D amplification circuit uses multiple novel optimization techniques to fully push the performance and output power to the maximum. The new circuit provides crisp, clean and deep sound with completely inaudible noise floor. The fully balanced structure makes PA5 no more hum, no more noise, no more ground loop.
Simple and efficient connectivity
The PA5 offers two balanced inputs in 6.35mm TRS stereo jack format. The output is simply done on speaker terminals.
E50 is the best DAC for PA5
PA5 and E50 have fully matched design language and styles, and signals can transmit in balanced by TRS.
PA5+E50+L50 this is a fully functional combination
When you need a more comprehensive system, we recommend a combination of PA5 power amplifier, E50 DAC, and L50 headphone amplifier. In this way, there are corresponding equipment from the digital audio source to driving speakers and headphones.
D10 Balanced could be best USB DAC for PA5
D10 Balanced can provide high-fidelity USB decoding and TRS balanced output. When used with PA5, it is equivalent to adding a high-performance USB input to PA5. This combination is simple and efficient.
*** To connect a balanced signal to the input of the PA5, for example those coming from the balanced outputs of the Topping E50, it is necessary to purchase the Topping TCT1 cables separately (click here). Instead, to connect the XLR Balanced output of your source, you may use the cable adapters Topping TCT2.

| Supply voltage | 38VDC 4A |
| Standby consumption | < 0.1W |
| Housing material | Aluminum |
| Dimensions | 166 x 129 x 41mm |
| Weight | 680g |
| Package | 1x Topping PA5 1x Power supply |
A ´B-Stock´ is a product which has been returned by a customer within their 14/30 Day Money Back Guarantee.
These items are offered at a special, reduced price. Please note, that occasionally the packaging is no longer in pristine condition.
B-Stock products are in full working order and are checked by specialists before releasing them as B-Stock. They come with the full 2 year warranty as any other new product.
Any special comments about a B-Stock product will be noted at the beginning of the article description.
-14% Black Friday 2025
Our all time best Promotion
Are some products out-of-stock? Please Contact Us
Second hand product, in excellent conditions, with original box, 1-year warranty.
Second hand unit, in very good condition, without original package, 1-year warranty.
B-Stock product, (read below) in excellent condition with original packaging, 2 year warranty
Second hand unit, excellent conditions, with original box, 1-year warranty.
Second hand unit, in excellent conditions, LIKE NEW, with original box, 1 year warranty.
B-Stock product, (read below) in excellent condition with original packaging, 2 year warranty.
Sealed new. This Aurorasound HFSA‑01 unit is factory‑fitted with the optional mahogany wood knob set at no extra cost, adding a refined, vintage touch. Please see latest image.
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