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 5.2 Coaxial Optical PC-USB inputs (AIYIMA T9 PRO)

I've been doing a lot of research on small class D amplifiers and after too many hours I settled on the T9 Pro. I am using my PC as the source and wanted an amplifier with an integrated DAC so that I could output the signal digitally via an S/PDIF cable and let the amp convert the signal to an analog one. I also have a fair bit of high res audio files and am glad the amp can process up to 24 bit 192khz signals. I am using the T9 Pro to power a pair of KEF C55 speakers that are quite large bookshelf speakers with dual 8" drivers with the top one having an integrated tweeter. They are rated to 150w at 4ohms. Now with all the preamble out of the way... all I can say is WOW! It is beyond impressive that such a small amp can effortlessly power such large speakers. The sound quality is phenomenal! I started with a 24 bit 192khz version of Louie Armstrong's "La Vie En Rose". I was blown away by the trumpet during the intro. It felt like he was right in front of me playing and the separation of instruments and sound stage were both really impressive. Once the vocals started I was also really blown away by the clarity. I next played around with a mix of different genres (I have a pretty diverse taste in music) and I felt that it could handle everything from classical to rock. The bass felt a touch low for my taste but the included remote makes it a breeze to make adjustments to bass and treble. This will be up to personal preference of course. The T9 Pro ships with a 32v 5 amp power supply which equates to 160w. If you are using this with a computer, make sure to set the S/PDIF output to 24 bit 192khz so that you get the best quality possible (if you are playing high res audio). In summary, I cannot recommend this amp enough, the value is superb for what you get. As a note, my main home theatre setup is powered by a $3,500 Onkyo 7 channel integrated amplifier so I have a great reference point at a much higher price point. It really speaks to the efficiency of class D amplifiers and the quality of the Texas Instruments chipset in the ability of this tiny amp.

Excelente equipo, brinda un sonido extraordinario. Lo recomiendo ampliamente.

Amazing Amp , comes here in SAUDI with 32v powersupply and GE usa tubes The two eyes look is fun , OLED left eye screen is big and bright Sound on Klipsch is really detailed and nice , not like my much expansive QUAD Vena2 but trust me it doesn't worth to spend extra 500usd on that branded amp for a little 10% better sound

Simple and everything I wanted from an amp. Love it.

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.