Neat little preamp. Very prone to distortion, especially via blue tooth, but for what I will be using it for, who cares. It's a way to connect old powered studio monitors to my phone via blue tooth in my wood shop and for the price it does just fine. I wouldn't use it in the house as I'm much less tolerant of noise there.

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Sounds terrific! The bass and treble trim knobs work well. The Bluetooth enables me to now send music thru my receiver from my iPhone. A totally elegant solution to not having a phono pre-amp included in your TT. Highly recommended. I only wish it had a headphone jack, but by no means a reason to not give this a five star review.

Sounds great, works great. USB works great. Just not quite enough gain to get a record player to RCA levels. I may look into changing the tubes to get more gain, which is possible. The website does list compatible tubes, some with higher gain.

I have this paired with the topping l30 2 headphone amp by my bed for my night time listening and it sounds great, I have more expensive systems that give better detail and things but this system is musical and perfect for my intended use. I do have an ifi power supply hooked up to this unit and I’m using a mogami cable. I will edit later after I do some tube rolling, I have several to try. Ok so I tried different tubes and so far GE JAN 5654W is really good but my favorite one is a MULLARD/RTC 5654RT, well balanced and good detail and texture and soundstage with a slight warmth to it, cymbals sound like cymbals and the bass is good with nice mids.I added Black Tall Square Adhesive Rubber Bumper Pads by gorillagrit to the bottom of the amp and this preamp so that I could stack them without the amp getting to hot, they stack perfectly, great synergy between them as well.

I needed a good solution in order to play my audio files from a phono, and my music player into my legacy Yamaha amplifyer that didn't have a pre-amp.Also not wanting to break the bank, I stumbled upon this gem from Douk Audio when browsing.After it arrived I immediately connected it to my system and was very pleased with the quality sound that it produced. Tubes have made a comeback thankfully into the HiFi market, because folks have rediscovered the velvety flavor they impart onto your music vs the stark sometimes harsh sound that a purely digital transistion delivers.Douk has a solid name in the industry, and this little gem delivers what I was looknig for for a very reasonable price.Thank you Douk Audio, and if you have any devises you feel the need to have reviewed look me up.Graphixman