Douk AudioT6 PRO Bluetooth Tube Amplifier, 300W x2 TPA3255 Hybrid Amp for Home Theater and Hi-Fi Systems, with Dual VU Meters, Super Bass, and Audiophile-Grade Components (Upgrade Black)

lots of clean power on opening round- will continue using & compare this 2 tube hybrid amp to the sound quality of my 4 tube nobsound 200+200 amp

I very rarely write reviews but I’ve been surprised by this inexpensive little unit.After I purchased some vintage speakers for my cassette setup I needed to power them, but didn’t want or need a massive receiver unit. This little unit serves my needs perfectly- allowing me to connect my cassette player, laptop, and even phone via Bluetooth and also power my passive bannana plug speakers.I’m surprised by the quality- it’s all metal, US made tubes, and the metal knobs have a really good feel to them too- the source selector clicks nicely to each position, and the rest have an indentation you can feel when rotating them. Honestly surprising at this price point.Another reviewer mentions reaching out to support- I did the same when I thought my channel two on this unit had an issue (turns out my RCA cable died and went mono). They got back to me within 5 days offering solutions but by then I had figured out my mistake.Def recommend if you have a small setup like mine and don’t want to get into rack style audio gear.

Unit I purchased two months ago is defective and is out of Amazon`s return policy range. Contacted Manufacturer to get issues resolved within The one year Manufacturer warranty and got completely ignored. No one at DOUK AUDIO has offered any solutions after Multiple Emails were sent and now I have a $200 worth of Amplifier that does not function and collecting Dust. Buyer beware

Multiple source inputs, with SW out. Ample amount of volume power, for your bookshelve’s. Perfect, in my average to large room size. I’m a near-field listener anyway, but this thing can do uncomfortably more than I need it, to do. Tone controls (with two types of bass knobs), help you shape the sound, to your musical taste. Warm sounding (to my ears), with clarity & controlled performance. Built like a tank, too. At it's price, I feel like I stole the thing.Plus, it looks so fricken cool, to boot!

Great little unit. Tubes are GE 5654w American made. Very impressive and clean sound. VU meters are adjustable as well as the output wattage. Simply acquire a larger power supply for more speaker wattage. Bluetooth is LDAC and works flawlessly on my windows 10 PC. Looks fabulous on top of my cigar humidor.

This is an interesting integrated amplifier. Douk Audio combines a [presumably] Class A/B tube preamp with a Texas Instruments TPA3255 chip amp. It has two RCA analog inputs, one 3.5mm aux analog input and the only digital input is via its integrated Bluetooth (no USB, Optical or coax digital inputs). It lacks a phono preamp input. There's not a dedicated subwoofer out with adjustable crossover, but it does include a 3.5mm aux out that should be able to be used for a line-level LFE input on an active subwoofer.I LOVE the rectangular VU meters, except the meter on the right would inexplicably get stuck, being pegged to the right, which is in itself interesting as I never had the input so hot that the VU meters ever danced to the red zone, so not sure what the dealo was, but a quick finger nail tap would dislodge the stuck VU meter needle. The rectangular white backlit VU meters on the Douk Audio T6PRO look far nicer than the tons of cheap round amber VU meters we see most vendors slapping on their gear these days. It would be nice if it was backlit blue, or had adjustable colors like some, aside from that I LOVE these VU meters!I tested the RCA, Bluetooth and the 3.5mm aux input. All worked fine. Note that aside from Bluetooth, there's no DAC on this integrated amp, as all of the other inputs are analog.Instead of a bass, mid-range and treble adjustment it comes with a Super bass, bass, and treble, it lacks a mid-range, and for me, the amplifier itself lacked mid-range. It had gobs of power, and could have even more as one could simply upgrade the power supply to the maximum specifications as documented in their user guide for a nice boost in usable power.I used the Douk Audio T6PRO to power a pair of high end Swans Speakers 3-way 4ohm speakers, and generally I felt the amplifier sounded okay, but for me, it lacked mid-range. I ran the amp for a total of around 100 hours to make sure there wasn't any tube burn-in period or such, and it didn't really improve. This amp uses JAN5654 tubes which can be easily and inexpensively rolled for much higher quality tubes, I'll dig thru my parts box and see if I have some upgraded tubes compatible with JAN5654 tubes, but this review is based on the included stock JAN5654 tubes.I've found that generally, Douk Audio is a good value play. That said, I'm not sure what to make of this particular amplifier. The sound is a bit lackluster, and surprisingly the Douk Audio T6PRO lacks a remote control. That seems a bit unusual for an integrated amplifier, particularly one at this price point.

Perfect match for my JBL G-730 speakers