AIYIMA T9 200W Bluetooth Amplifier HiFi Digital Class D Power Amp 2.0/2.1 Channel Vacuum Tube DAC Amp with VU Meter & Bass Treble Bluetooth Coaxial Optical PC-USB inputs

This amp Is magic, for the small size and the low cost it is just magic. This amplifier sounds better, to me, than a lot of more expensive amplifiers. it has very detail sound. Sounds better than my 1980's Kenwood amplifier(which I bought when I was just 17 years old). Sounds better than my Sony 2 Chanel amplifier. Does it blow them out of thee water? No, but to my ears it sounds better. The build quality is very good and the aesthetic design is really good too. Only issue I have is that remote should have more functionality, like having Bass, Treble and balance controls on it, and not having a bunch of none functioning buttons on it. It's a generic remote probably used with various Aiyima products. still the remote does control pwer on and off , volume up and down, mute and changing tracks with blutooth. Also the amplifier needs to warm up and breaking in before you get the best sound. It will sound a little thin the first time you turn it on but the sound gradually gets fuller and better (Much better) as you listen the first few hours. Probably breaking in the Vacuum tubes. Over all I am happy with the amp and glad I bought it.

This pint-sized little wonder sounds so good, I actually prefer bit to my $1300+ integrated amp. It ticks all the boxes I was looking for: optical input for TV, RCA for my turntable (with a built-in phono pre), and USB input for streaming from my computer. Plus, it has a remote, which is important to me for using with the TV. It lacks a headphone amp, but that's a fair trade off for the price point (I have an external headphone amp). Paired with my Elac DBR62 speakers, the sound is addictive, with bouncy bass, punchy mids, and sparkling highs. Sadly, it did take two tries to get a good one, as the remote stopped working on my first one within a day. As always, Amazon came through and sent a replacement within a day.

<Honest review here> Woah. For the price, this amp is a powerhouse. Paired with my klipsch rp-600m it sounds fantastic. Room filling sound, incredible detail on music, & films. Along with the versatility options, this little guy is solid in the hand, packs a good punch, and even looks great. For what its worth the packaging was on par for a rainy day, the tubes were slightly bent at the nodes yet still work just fine. there is a slight wiggle when inserted but who doesnt like a little four play? ;) a warm hum when powered on, yes it has a click when not in use. Like when youre picking the next song or movie, Totally not an issue. After a few weeks of using this amp I've had zero issues and have accepted that anything could happen and it would be money well spent. Who knows, maybe it will outlast us all. Its really all I needed for now.. Im hearing things I've never heard before, Blade runner, AMAZING. Twin peaks FWWM, brilliant. Goodfellas, sopranos, fuggetaboutit. And the meter works well, even kept up with the Great Neil Peart!

Nice little amp, puts out just enough power for the home theater- just enough, almost not enough. Biggest complaint is when using bluetooth, even with the volume turned all the way up its just way too quiet, had to hardwire the inputs for decent volume. * update- I added a preamp, now it has more than enough volume when wired. Great sounding well balanced amp, hardly needed any preamp eq adjustments.

After much fan fare, great reviews (cheap audio man etc.) and waiting for it to finally come back in stock, I have to say I’m super pleased with this little beast. I have it hooked up to my Klipsch RP600M, Apple AirPort express via optical for Airplay2, and my turntable via Fosi Audio Box X2 preamp to the RCA inputs. I also have my Klipsch powered sub attached via the Aux out. The majority of my listening has been done via Apple Music through the optical/DAC. Right off bat, the sound is fantastic. The sound stage impressive for an amp this price, and once I had the tone controls dialed in (two pips down on the bass, three up on the treble for me!) the tone and texture are equally good. The tubes really do add a touch of warmth and soften the digital input (I’m looking forward to doing some tube rolling too). The Airplay is so good I’ve not even tried the the Bluetooth. One notable thing that should be mentioned is the power saving click. When the amp loses signal for 10 seconds in any input, there is an audible ‘click’. This can be off putting at first, but as I understand it, it’s a mechanism to prolong the life of the box. After a while I don’t even notice it, just know that it’s not the unit being defective, it’s by design. Oh and it’s even got a remote! Pretty basic, but does the job. Over all I can’t sing the praises high enough for this little amp, it offers fantastic bang for the buck and even looks super cool. The VU meter is a nice touch, though I never listen loud enough to get it jumping much!

It is a great little amp for desktop usage. I have mine powering two Klipsch R-60M which are very sensitive speakers so they need very power to sound loud. The tubes that comes with the amp are very bright especially with these speakers. I had to buy two Riverstone GE 5684W tubes and they definitely toned down the brightness. Music sounds more full body.

This little amp sounds fantastic and has all of the features I want. It has the option for banana plugs as well just normal wires for the speakers. My only complaint is that the connectors are a little bit too small for 14 gauge speaker wire, but it does barely fit. The Bluetooth connection is very low latency and it connects instantly.

Muy satisfecho con el equipo. Le dió vida a unas bocinas JBL E30 que estaban antes con un Yamaha pero que, al parecer, no tenía la potencia suficiente. Con música bien grabada los bajos son mucho más pronunciados y controlados, muy buen balance con medios. Los agudos no molestan. Ampliamente recomendado.

I bought this little thing to use as a desktop amp for my Emotiva B1+ speakers that I am waiting to arrive. I couldn't resist trying it in my main system so I hooked it up to my JBL towers and connected my Allo streamer through the coax input and I was totally surprised by how well they sounded. Well defined and strong bass, airy treble and wide soundstage. The most surprising was the soundstage that was the same size as my Audiolab 8300A amplifier. The lacking was in the lower midrange and upper bass so it sounded hollow and muddy, especially with bad recordings of 70's and 80's rock'n'roll (still very well for the money). But then, the real surprise came when I actually fed it through RCA input with my ARES II DAC as a source. OMG, it sounds almost as good as my $2000 amp. It quickly deteriorates if I play it above 70dB but at medium power listening, it is almost too good to be true. A warm but well-defined and spacious sound that is very musical. It's a joy to listen to. I had none of the problems that some people experienced with it, clicking is there but only when you turn it on, not important. Also, the remote works well for me, with no interference to other gear. We will see how reliable this little amp is but if you are going to use it as a pure amp you will be amazed and have a lot of fun. B. Update: I paired T9 with iFi Audio DAC V2 and Emotiva B1+ speakers and completed my desktop setup. Sounds detailed, with a wide sound stage and smooth midrange, controlled bass. After spending a month with this little amp I can only tell that it is worth every dollar and more. I haven't had any of the known issues, everything works smoothly.

Very cool small product fits perfectly with my setup and noticed a difference in sound quality pretty fast :UPDATE The tubes it came with are general electric jan5725w tubes different as advertised still good tho however please be warned

Firstly - I almost didn't buy this given I needed to power my turntable, and the description said this product wouldn't do that job. Not sure why the manufacturer is saying that, since it DOES work fine with a turntable, providing your turntable has an in-built preamp. That said, this product is amazing value for money. I was using an older Pioneer Dolby 5.1 system just for the turntable, and the quality that comes out of this is much clearer. It's loud enough for me, my family can hear it clearly upstairs so I'm not going to get it any louder than that. If you want crystal clear sound quality at ear-ringing volume, then you're going to need to spend more money. However, if you need home-level loudness, this is going to do an excellent job. The old school analogue gauge is fun and the remote is pretty good. Bluetooth pairing also works well and sounds far better than my soundbar - which I was using for streaming music until now. As for the so-called "clicking" problem. It makes a tiny noise when you switch inputs (like my Pioneer amp also used to do). I can't fathom why anyone is saying this is an issue, it's barely noticeable. Can't speak to reliability yet, but so far, very impressed.

Overall I am pleased with the quality of this amp. It has excellent sound quality and a variety of input options, all while taking up minimal space. It has enough power to drive large speakers to higher volumes than I would want in a medium size room. As others have noted, it does click and shut down when it is not receiving sound input. My experience has only been through optical from a PC, but it is rather annoying to have it clicking on and off when you aren't listening to something. I have not checked to see if the same happens through RCA inputs. So far the easiest way to deal with this is to turn it off when not actively listening to something. I would give it 5 stars if not for the power cycling issue.