AIYIMA T9 PRO 200W Bluetooth Amplifier HiFi Digital Class D Power Amp 2.0/2.1 Channel Vacuum Tube DAC Amp with VU Meter & Bass Treble Bluetooth 5.1 Coaxial Optical PC-USB inputs

I have had this little amp for many months. It’s fantastic and a great value. For a while, I did feel as if I wanted it to get better volume without maxing , but I was able to remedy this. After looking everywhere to see if I can plug this into the A07 max and basically use it as a pre amp, i decided to try it myself. I also got the upgraded power supply for the A07. (Makes a huge difference). I also upgraded the tubes in the T9 pro with the $25 riverstone audio pair from amazon. IT IS WORTH IT.Essentially, my T9 pro is being used as a pre amp with tone control and DAC into the A07 with upgraded power supply. This opened up the sound stage, gives me the volume and adjustability I wanted, and looks cool with a small form factor. I also have the x2 pre amp for my turntable with upgraded tubes. All in all for a pre amp, upgraded tubes, upgraded power supply, t9 pro and A07 max, you have a full set up that you can have a turntable attached and television. It worked great with my a/v switcher too. At one point, i had my TV, a cassette deck, and my phono pre amp all hooked into this thing running through Kef q350 speakers. it is extremely fun messing with all of the items like a lego set.THE SOUND-TurntableGet an external pre amp. The sound is crisp, and clear. Beyond impressive for its price point. It is a little thin on the bottom mid range and upper mid range, but the dynamics are awesome and you can hear the instruments in the music. I test everything with “Rhiannon” from Fleetwood mac, it really sounded awesome. I do not find that it adds to much distortion or clipping even when volume is maxed.-TVThrough the optical table, it sounds great. I sometimes like just playing my playstation through a simple 2 channel set up in my small media room. It’s easy to switch from the remote and adjust the treb and bass as needed while sitting in the couch.-BLUETOOTHMy 1 knock. The bluetooth on this thing sucks. The connection is fine and if you just have background listening it’s whatever. But it is VERY thin sounding. Still a great feature to have. I think you would be better set getting a blue tooth adapter.OVERALLAwesome little amp with great sound and looks. Sounds even better when paired with A07 max and upgraded power supply.For the average listener, so worth it. I mainly listen to my music on a vintage pioneer amp, but I still put this on regularly.For someone starting off on a vinyl or hifi journey, especially with a tendency to hyper focus, save and get higher end equipment. You WILL keep adding little parts to this that will rack up to be the same as just getting a few mid range pieces.

The media could not be loaded. As an owner and fan of the Aiyima A07, I was interested in checking out the Aiyima T9 PRO. Suffice to say, I'm very pleased with this amp so far. Overall, It outputs great sound while also taking up a relatively small footprint for my small desk. It also has a ton of really nice extra features, and to top it all off, it looks really, really cool.To start off with, the sound: I can say that out of the box it sounds wonderful. I use this amp with a pretty inexpensive, non-demanding pair of speakers (Micca MB42X) and this amp is more than enough for them. I find the T9 PRO is similarly clean to the A07, with no huge changes in sound signature. The T9 PRO might be a bit warmer, but I'd have to do some actual testing to tell. Personally, I prefer the clean sound, though someone who's looking to buy a pure tube amp might feel differently. I can tell you that though the T9 PRO might not have the signature high-end tube amp sound, it still sounds full and packs plenty of power.One neat feature I quite like is the built in bass/treble adjust. I often find equalizer adjustments through software inconsistent or lacking, so it's very helpful to have a very simple easy adjustment on the amp instead. It's something I missed when I switched from my cheap $30 amp to the A07 (though the A07 is certainly superior to that one in all other respects). As someone who finds my Miccas a bit boring at times, this option is a super nice convenience to add some occasional color and excitement.I tested the amp with some tracks like Polyphia's "Playing God", and with a slight bump to bass and treble, the song really comes alive -- the added emphasis on the low end makes the track extra satisfying while also not covering up the beautiful guitar parts. I also tested some other songs in the electronic genre like Madeon's "The Prince" or various songs by Weval, and with a controlled but sizable bump to the bass it sounds downright thrilling while avoiding being too blurred or muddy. Another track I demo'd was Dayglow's "Close To You" -- with some minor adjustments, the drums especially become particularly tight and punchy.The T9 PRO certainly has some other cool features as well. It has a wealth of possible audio inputs which is extremely convenient. It has options for RCA, Coax, optical, and even USB and Bluetooth. The USB option alone is super convenient if you want to quickly plug the amp into a computer, and it works plug and play without any driver installation or extra software needed. I also tested Bluetooth (with my iPhone 12), which is very easy to set up and works pretty well with no connection issues or anything of that sort.I personally run the T9 PRO through Aux/RCA, through my Schiit Magni Heresy which serves as a preamp, which is plugged into my Focusrite Solo audio interface. Works flawlessly.Aesthetically, it has the VU Meter and a dotted meter on the segment display, which both respond to your music. It's a nice added touch, and the glow from both along with the tubes makes the amp look really cool, in my opinion.The knob is also particularly nice quality; it has satisfying steps instead of being completely continuous. You can click in once to mute, or twice to adjust the bass and treble.The amp also comes with a remote which is a nice touch. I unfortunately haven't tested it since I don't have AAA batteries, but it's nice they included it.One question one might have is how it compares to the old T9, non PRO. I must confess I have no personal experience with the T9, but I have seen reviews and feedback on it. It seems like a relatively well-liked device overall, save for an issue where there's an audible clicking after input ends, which seems to be a large pain point for many. I can happily say no such issue exists in the T9 PRO. That issue sounds quite frustrating to me so I'm happy Aiyima fixed it on this one.Another question one might have is how this one compares to the Aiyima A07. I find both to be entirely capable devices, but it depends on what you're interested in. The A07 is a powerful, no-frills amp at a great price, so if all you want is something simple I can still happily recommend the A07. However, the T9 PRO features some nice added bonus features like Bluetooth, bass/treble adjust, and looking extra cool while being more compact overall. I find its compactness to be particularly nice as my desk is quite small, so I would find this suitable for desktop PC usage in a private office or a small dorm. If you happen to own an A07 already, I believe you can connect them together, though I haven't tried that.I do have two very minor gripes:-The VU meter and green dotted meter that responds to your music seems a bit insensitive. At first I wasn't sure if it was working properly, but they certainly do -- you just have to crank it up. Unfortunately at those volume levels I would probably piss off all my neighbors so at my normal listening levels they don't move a ton. This might not be Aiyima's problem though, since I do wonder if I used more high-quality, demanding speakers if it would then be more responsive at reasonable volumes. I also might be misunderstanding how they work, since it seems they respond to your overall volume and not just your input signal volume or volume on the amp itself. I'm unfamiliar with VU meters so I do wonder if this is just how VU meters work in general.-the amp and tubes can get a bit hot after awhile. Nothing too concerning, but if you happen to have very small children I would be cautious. For most people though, it shouldn't be a problem. I assume by nature of being a tube amp, this is fairly normal behavior.Overall, the T9 PRO is a powerful great sounding amp in a compact package with some nice extra features. If you're looking for something that's surprisingly powerful while also looking awesome, and/or if you were interested in the T9, I can safely recommend the T9 PRO.