AIYIMA B07 Bluetooth Amplifier 2.1 Channel HiFi Stereo amp,300Wx2+300W TPA3255 Chips Subwoofer Amp with Bass Treble Controls,Dual Power Interface Design for Home Desktop Bookshelf Speakers

I've been playing thru this AIYIMA T2-PRO for a week, and so far, I'm impressed! This is ideal for a small desktop or bookshelf setup driving two small speakers. The tubes don't really color the sound too much, which is nice. It's a welcome feature to smooth out the edginess of a digital Bluetooth signal, but it's not so prevalent as to alter the sound of vinyl. I'm running this in my living room (~300 sq ft / 90 sq m) with a Pioneer PL-518 turntable, an Art DJ Pro II phono preamp, and Micca MB42x bookshelf speakers. This amp goes loud enough to completely fill the room with sound, but it's not cranking out the level you'd envision at the advertised 100w per channel. I believe the volume is attenuated internally so it doesn't go loud enough to distort, as these 3116 Class D amps often tend to do. I also have a Lepai LP-2020a+ and an SMSL SA-60, and they both get louder than this amp, but with a lot distortion at higher output levels. This one is crystal clear with the volume maxed, albeit with less of a max. This amp will not fill a house, but it will definitely fill a room. Bluetooth connectivity is solid, but with some small quirks that are easy to navigate. My phone finds and pairs the device easily, and when connected the range is decent. The connection gets choppy after about 35 ft / 10m, thru 4-5 walls. I'd estimate you'll get a solid 40-50 ft without obstructions. After leaving the signal radius for more than a few minutes, my phone will not automatically reconnect and transmit audio to the amp. I need to reselect the device from the list of paired devices in my phone to get audio again. While this seems inconvenient, I actually prefer this so I don't suddenly get whatever happens to be playing on my phone coming thru the living room speakers when I leave the house and come back. And even more so considering some devices auto connect and auto play, even though the video or song was previously paused! Imagine the potential embarrassment! :-P This may be mildly inconvenient to some, but I would much rather tell it to connect than to disconnect. EQ on the front is ok. It works and I use it, but it's a pretty basic shelving-type sound and nothing to get excited about. I don't mind that it's there and I don't mind that there's no bypass. All equipment at this price point colors sound in some fashion, so having a non-removable EQ in the signal path doesn't bother me. It's easy to find a sweet spot somewhere in the center and let it sit there. And it's helpful in tweaking generally-bright or generally-dark sounding records. Overall, the sound and functionality is great. The tubes look groovy lit up. It's got an on/off switch if the glow bothers you in a dark bedroom. It's got a solid, professional look and feel to the build. The sound quality is excellent - clear and powerful for its size, with nice channel separation and open soundstage. If you're looking for a small, 2-speaker amp for a desk or single room application, this is definitely worth checking out!

I've been using little Class D amps for awhile now. I've stuck with the tpa3116d2 because it is easy to find, fairly powerful, and sounds pretty good for the price. Mainly, I've stuck to the boards in a box with no power supply. I buy them for some DIY fullrange driver desktop speakers I make and the amp is plenty powerful for them with at smaller power supply. When we decided to move my larger bookshelf speakers into the living room upstairs, I needed another amp. Space requirements dictated something small but good looking. I wanted something with Bluetooth capability and a physical switch to toggle between the Bluetooth and the Aux in. This little amp met all my requirements with strong output, a decent wattage PSU, and good looks. However, knowing the limitations of the previous tpa3116d2 amps I've used, I had my doubts they would adequately drive my larger bookshelf speakers. These are ported and go down to 40hz easily with authoritative bass on my main system. With 6.5" woofers and low sensitivity, about 87db 1w/1m, I was concerned this little amp would sound thin. It does not sound thin at all. The bass is taught, articulated, and nicely present. Vocals are open and natural, and the top end is detailed without being crisp. The amp is not a party amp, and it won't blow the windows out of the house, but for average listening levels, 75-85db for me, it is more than powerful enough. I also have this hooked up to the TV for nice sound while watching or when we're streaming Spotify off the TV for background and it performs well above its pay grade. Imaging is nice. In my room it produces a fairly wide soundstage and images quite nicely. I should note there were a few problems to start. I purchased a Amazon Warehouse unit that was described as "Used-Very Good" noting that there was minor cosmetic damage and that the packaging would be damaged. I'm good for a deal, and I thought a little scratch or mark was worth the $15 I was going to save. No biggie... Welp, when the package arrived, most of the packaging in the box was missing, and the tubes had been left to roll around in the box. So, you can imagine what the inside of the box looked like. Two absolutely shattered tubes and glass fragments everywhere. This was disappointing to say the least. Amazon however did well and made it right. They provided me a credit which I used to purchase a matched set of GE JAN5654W tubes. A couple days later, and I was up and running. I would be interested in hearing the amp with the original tubes that it came with however as this is the first tube amp I've had. I would be interesting to see if I could hear a difference. Also, my amp came with a 24v 4.5 amp PSU rather than the stated 19v 4.7amp PSU. Not disappointed there as the amp is rated for up to 24v 5amp. Regardless, I'm super pleased and am enjoying listening to my speakers through this amp.

This is a nice little amplifier. I was comparing it to the Aiyima A08 Pro. It seems to have a bit more body and I do feel like clarity and slightly better details. In the background. It definitely shines when connected to an external source. It definitely is nice to have an Amp that can also power a passive sub. I like the amount of power in the form factor. It can get a little hot though.

This is the fifth Aiyima product I've bought, and I'm constantly impressed by the level of ingenuity in their designs. My previous glowing experience with Aiyima's bluetooth 5 tube preamp encouraged me to check this one out. It's basically a hybrid integrated amp which combines the superior efficiency of a class D amp & SMPS with the superior sound of tubes. Best of both worlds in an affordable, compact, neatly integrated package. IMO tube preamps are absolutely essential for bluetooth audio. They completely transform the sterile lifeless tone of digitized wireless audio, into a relatively warm and natural tone. In terms of power it's more than sufficient for my B652 Air's with plenty of headroom. Very clean, no undesirable distortion. I usually prefer line-in, but I did thoroughly test out the bluetooth. No complaints. Paired and connected instantly with my Galaxy S21 and PC (Asus X570-I). Stable connection, no dropouts, excellent range. If you dislike the sound out of the box, there are several easy options for customization, such as swapping out the tubes or op amps. I've tried two of the recommended op amp substitutes, but ended up going back to the originals. They clearly chose the LM4562's for a good reason. Stock 6J1's tubes are actually pretty decent after sufficient burn-in either, though I still prefer the sound of Jan GE's. Beautiful internals... High quality Nichicon caps, copper heatsink, lots of SMD components. I'm not even tempted to tweak anything. Highly recommended.

I built a 2.1 Bluetooth using a 10" Dayton Audio HF 4 ohm as my Sub and 5.25" Esoteric's with GRS RT1.R-8's for the R/L. Wiring to this amp was simple and the ability to connect using either Bluetooth, RCA or AUX makes this device very user friendly. Once connected, the sound and volume was and is seriously unlike anything I've ever heard in such a small package. The 10" is tuned down to 30hz, and the R/L 2way is at 3000hz. The tuning abilities like frequency and individual volume control that this amp gives you, on top of the quality of sound that it produces, even at high levels, is the reason it gets 5 stars from me. I've pushed this amp at full volume for extended periods of time on more than a few occasions now without a single issue. I live in a roughly 900 sq. ft. flat and this amp provides more than enough sound to fill my home. From playing it outside, I now have neighbors and friends wanting me to build them a Bluetooth speaker. It looks like I'll definitely be buying more of these in the near future!

[Update] All of this is first impressions. It's since completely stopped working. I'm still working with the seller to get this fixed. They are trying to blame the speakers which are within spec. [Update #2] Forgot to add this way back. They were stuck on claiming that the speakers were too high a wattage, which is utter BS. The only "issue" that would cause, is you may need to turn the volume up a bit more, but I was /FAR/ from even 50%, much less max volume. They obviously don't know what they're talking about, and this is how they treated someone that they wanted a review from. The worse that could happen there is if you paired it with speakers rated for a much lower wattage and blew them out, or mismatched the impedance. After this experience, I would avoid the company alltogether. To preface, I received this as part of their review program, but picked it out as it fit my very narrow specifications. I was looking to buy it myself anyway and liked the price, but couldn't pass up a discount on it. I'd be happy with it even without that. It's a plug and play setup, able to push a cheap pair of Moukey speakers without breaking a sweat(both matched to 100W/channel. It pushes plenty of sound through them, even at a low volume. It feels solid for the size, and provides enough control without being too complex. The control knobs on the front are smooth, and while easy to rotate, don't rotate on their own. It's a definite bonus for me that the input switch is a physical switch rather than being automatic. YMMV on that, but I much prefer being able to choose when it changes inputs. Both the power and input switches feel very tough. It's a small and simple amplifier that punches above its weight class. I didn't pick this for it being a tube amp, and have heard that they change the sound profile, but I really don't notice. Everything coming out from music to tv/movies and games all sound as I'd expect. The bluetooth radio can pick up my my phone across the house. All in, I'm no longer at all pleased with this "purchase".[Updated this line for accuracy]

This amp looks and feels great. Unfortunately mine had a dead left channel upon arrival. Tried swapping tubes and speakers and then tested it with a multimeter. It's really disappointing because the right channel sounds so good. Will see what happens after returning it

My 10 year old amp just blew out, and I had half a mind to give away my old speakers and go for new ones. On a whim, I looked up the cheapest tube amp on Amazon with good ratings (the ratings are actually great... though sometimes that's suspicious as I understand many reviewers are paid or given free items). I narrowed it down to Aiyima and Nobsound; with the "top end" for Aiyima being less than half the price for similar specs on Nobsound, that's what I went for. Just arrived today after a very very short shipping period (fulfilled my Amazon? or maybe the seller paid for super express international delivery as I'm in Taiwan in the middle of a lockdown and the package arrived in 5 days!). The package has no frills. Just the product packed in foam and a cardboard box, and a small instruction manual. The amp has all the inputs and outputs you need, in a tight little package. The interfaces and connections are simple and no-nonsense. Everything you need is there. Based on the size and (lack of) weight, I was worried that the 2x100 amps was an exaggeration, but then I plugged it in and... WOW. I'm powering decade-old SA1530's, and this amp has brought new life to them. It's unambiguously *better* than my blown Myryad Z140, which was originally around $1300 retail. I'm not a hi-fi "audiophile", but I have taken 2 decades of piano and played for 4. To my instrument-tuned ears, what I hear is clarity and warmth in the highs, expressive mids, and clean power in the bass. I think I'm probably now spoiled for ever buying a Euro/UK/Jap amplifier for 1000+ after experiencing this. I happen to be in the process of re-doing the home a/v setups around the house, and I was convinced to get a pair of Cabasse Pearl Akoyas for the home office room. My "Aiyima-"rejuvenated SA1530s sound on par with them... and that's really saying something given the technological marvel and performance that the Akoyas are. If you think Chinese only make low end crappy doo-dads, then check this out and your mind will be changed (and also check out your i-phone/pad and pretty much 80% of high-end electronics that aren't Korean). Though snobby "audiophiles" would never consider them, I have to think it's because Aiyima isn't paying for reviews, and if the cost of hi-fi goes down by 90% then all the support sites (reviewers, retail stores, etc.) are going to take a big hit in gross income!