Uploaded July 2024 | Updated September 2026, 1 week ago

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At a quick glance this looks like just a headphone amplifier, but it's actually a very capable preamplifier that will pair up nicely with a power amplifier, or even the new V3 mono monoblocks from Fosi Audio.

Purchase links:
Amazon USA: amzn.to/4f8DXBV
Amazon CA: amazon.ca/dp/B0CF1WL1V2
Amazon UK: amazon.co.uk/dp/B0CF1WL1V2
Amazon DE: amazon.de/dp/B0CF1WL1V2
Amazon FR: https://www.amazon.fr/dp/B0CF1WL1V2
Amazon IT: https://www.amazon.it/dp/B0CF1WL1V2
Amazon ES: amazon.es/dp/B0CF1WL1V2
Aliexpress: https://s.click.aliexpress.com/e/_DnE3pNZ

CONTENTS
0:00 Start
0:23 Just a headphone amp?
1:13 HiFi preamp? Who needs one?
1:55 Battery powered goodness
2:13 USB power, line in, pre out
2:45 Cables you'll need
3:30 Gain and tone controls
4:08 Volume control and distortion LED
4:31 Headphone outputs x 2
4:41 Loudness control
5:02 Construction and quality
5:23 Low noise
5:37 My setup with the V3 Mono
5:59 Tone controls demonstration
6:44 Final thoughts