Douk Audio T4 PRO Vacuum Tube Phono Preamp, MM Turntable Preamplifier, GE5654 Hi-Fi Headphone Amp for Home Theater/Record Player/Stereo Amplifier/Active Speaker

I’ve been collecting records for almost twenty years and using varying degrees of audio set ups, with nothing that ever blew me away completely (other than the first time I replaced a stock Audio Technica cartridge with a Shure M97x), since I usually just purchased cheap equipment that allowed me to simply play with the distinct sound of vinyl. After recently acquiring a Fluance record player (RT82), a pair of beyerdynamic headphones (DT 770 Pro - 250 ohms) and a set of Klipsch bookshelf speakers, my next mission was to dip my toes into the realm of the vacuum tube sound. The headphones were the main reason I was looking for a headphone amp, since I was unsure that my Sony DH190 2.0 phono receiver would be able to drive them properly (it does), and so I then almost purchased a Schiit headphone amp; I kept browsing Amazon to see if anything else caught my eye (and was cheaper) before buying that. Ultimately, I decided to try this little guy first at half the price and hear for myself if it would be worth it to further travel down this vacuum tube glowy path. It has good looks, good reviews and an even more attractive price point, but I obviously wasn't sure if it would be worth it just to hear a difference (if any). My expectations were at the ceiling for this thing, since I read so many people praising it and the excellent sound it processes... Man, you really don’t know what you were missing until those little tubes warm up, plug in your headphones and play your favorite song. That one piece of music you’ve heard a million times before and listen in it, for the first time ever, a wave of detail, preciseness and clarity. That moment was awesome, perfect and brought excitement back to my record collecting. It's almost as if the tubes bring out that detail and fill in the blanks of whatever was missing in voices and instrumentation due to equipment. Is it a placebo effect? Maybe, but it felt so good that it made me spent a few hours listening to different records and it also brought me here to write this review. To say that it blew my mind is an understatement. Fair warning that this review is coming from a budget conscious audiophile that is always trying to find the best bang for my buck, so it’s obvious that there are probably thousands of better (and more expensive) audio listening configurations. I feel that if you're in a similar situation, this is an absolute must (small) investment to your record playing experience. It immediately felt like it was the missing piece to my set up and I am hoping that the beautiful exterior quality build matches the inside and that it will allow me to enjoy it for some years at least. Every component in the preamp feels sturdy, high quality and that it was made to make it better and produce higher quality audio. I was also able to connect my Sony receiver to it and the sound coming out of the speakers sounds unbelievable as well. The only knock down I have for it is that the tubes are a bit hard to install and to remove, it always feels like they are a squeeze away from breaking, but that really has nothing to do with the amp and more generalized vacuum tube issues. In all, I probably would have been fine if I had never purchased this, but I am so glad I did, because now it feels like it's an essential part of my record playing experience. I wonder how I went so many years without something like this. It seems that Douk is doing something special with audio equipment for the budget minded and I am glad that they are doing an awesome job at it.

Pleasantly surprised by this little gem. The difference is a little subtle however a nice and warm sound. I suspect the true preamp sound is gained by using the RCA inputs in back as opposed to the AUX input however both sound great. It is visually appealing as well as a tribute to the origins of amplification. I suspect the warmth is gained from the fact that tubes literally warm up. This allows a foot in the past and in the present.

Douk Audio did themselves proud with this preamp. It works beautifully. Word of caution though; do take care when installing the tubes. The sockets they fit into are a bit tight. I bent one of the prongs doing the install but was able to straighten it out with a pair of needle nose pliers. Other than that, it works well and sounds awesome. I especially like the AUX input on the front which allows you to plug in your phone or MP3 player using a male to male 3.5 mm cable. None of the other phono preamps I was considering buying have this feature. If you're in need of an affordable phono amp that really delivers great sound, you cannot go wrong with the Douk Audio T4 Pro.

It works very well, low noise floor and very compact. Just a couple of issues I have largely with a lot of these offshore products one being the manuals suck big time and really for as good as they are, could be left out completely. There is no reference to what impedance they are suited for. I have Grado's which are 38 ohms impedance but if I were to get Sennheiser's how well would they match? There is no mention of the RIAA equalization (if there is any) in the unit. Since this goes directly between the turntable and the headphones it would be nice to know. So, in reality, a well written complete listing of specifications would be a major plus in my opinion. Lastly, the interconnects are not very long. Still with all this I have the ability to listen late at night without waking up the entire house! Now for the monetary value, very good entry level component which you would be pleased with.

I like the way it sounds better than my turntables built in preamp, looks cool and the headphone amp is also decent

This connected to a vintage, refurbed Technics SL-Q5 Linear Tracking Turntable and New OSD Audio Pre-1 High Definition Preamplifier. Since the TT is vintage, I wanted a vintage tube sound. Otherwise why buy vinyl, just get a CD. The little pre-amp sounds great and fits my needs perfectly. I connect it to the Aux. 1 input of the OSD and enjoy my records. It was easy to set up and plug into my system. Aesthetically it fits in. It does not introduce any noise or hiss that I can hear. When a record is cued up but not playing I do not hear any hiss or hum. Of course, you need to ground your pre-amps and turn table together. Overall, It sounds above it's price class and I am very happy with it.

3 because its well made but did not work for me... Cant stop the background hum. I'm an Electrician so I know all about dirty power/bad grounding and I'm fine there. Shame I had high hopes.

Wonderful warm sound! I actually use this to work as a pre-amplifier for my guitar to create a thick warm clean tone. I know it is not ment to be used in this manner, but I just needed a little extra warmth that I could not find in any digital products. I would recommend to keep all volumes very low if you are recording. I have zero complaints, great ptoduct!

Such good value. I did look at some others. However this has a rich sound and is very wallet friendly.

Nice little RIAA preamp for my turntable. Works well, exactly as it is supposed to do. Good sound quality on my current audio setup.

Excellent sounding preamp. Clear transparent & balanced sound with a bit of added warmth from the tubes. I'm using it with an old Yamaha turntable from the 80's and it sounds fantastic. I mainly got it because I wanted to be able to control the turntable's volume but as it turns out it is a big improvement sound-wise over the onboard phono preamp which I have now bypassed. Very sturdy & well finished as well. I could have done without the blue LED's under the tubes, but that small quibble aside.....Highly recommended!

To be honest, my expectations were pretty low. I wasn't expecting much for the price, but I believe it's worth it. The sound is very clear and clean. I was amazed by this product. Now, I can enjoy my records in my office using my headphones without disturbing other people in my house. It's totally recommended.

Excellent product, sounds great, top quality build can't fault it.