My initial
REVIEW of the Transaudio 'D5' power amplifier ....
I purchase this amplifier from a seller at AliExpress in July 2026. My goal was to (i) test out an amp that would contrast with the Purifi 1ET400A class D amp I was using, and (ii) test AliExpress purchase process.
The 'D5' amp cost me a whopping Cdn$ 800 in total; $517 for the item, $283 for shipping. I order the amp on July 18. The vendor shipped it on July 25 using UPS as the carrier. I received the amp in London, Ontario, on July 30. The packaging was good and the amp undamaged by all appearance. Hooking it up and running it proved in had survived the journey and was working properly.
The amp appears very solidly constructed and looks good in 'silver' which I chose rather that 'black'.
My associated equipment was the following:
- Lossless digital recordings on my NAS
- Windows 11 running ...
- Equalizer APD with FIR filters created by Gsonic
- Foobar2000 player
- Topping D90 DAC
- Schiit Kara F preamp .OR. Sonic Frontiers Line 1 SE+ preamp
- Zaph Audio ZRT (DIY) speakers.
Running the ultra-low distortion Schiit Kara in high gain mode, which was probably necessitated by the SE-only inputs, my impressions where the following:
- No audible hum; no On or Off transients
- Subtlety warm presentation throughout the range
- Nice mid-range in general; vocals and piano with a slight, pleasant "luster"
- Robust bass but not boomy or overbearing
- Very good-to-excellent transparency & air.
In contrast the Purifi 1ET400A amp I'd been using:
- Has the "Nth degree" of detail & transparency
- Delivers slightly deeper bass with rigid control & articulation, (the Purify has a damping factor >100,000)
- Is completely neutral in tone but, depending on the recording, it can sound rather analytic or austere.
I switched out the Schiit Kara for the all-tube, (but notoriously unromantic), Sonic Frontiers Line 1. The Line 1 had these effects:
- "Softer" but not warmer presentation
- A small loss of air & transparency
- Loss of the aforementioned "luster" of vocals and piano.
My general conclusion is that the 'D5' DartZeel "clone" is a well-built, fine sounding amplifier and a ludicrous value for the money.
I suggest this 'D5' amp is best matched with a low distortion up-stream source such as a Schiit Kara, a Topping Pre90, or an Eversolo or WiiM streamer. For quite some time I've recommended that if you want a "warmer" or otherwise altered presentation, the best way to insinuate flavor is to pair suitable preamp matched with a ultra-low distortion power amp.
I'm sorry if some people are challenged by the idea that a cheap amp can sound good