AIYIMA A07 MAX 2 Channel Stereo Amplifier Home Audio 300W*2 TPA3255 Class D Power Amp/Bridgeable Mono Amplifier 600 Watt with 3.5mm Line Output for Passive Bookshelf Speakers+DC36V 6A Power Adapter

This is my review of AIYIMA A07 Max as comparing with AIYIMA A07 Pro and A08 Pro. I have had this unit for almost a month and I have been using it to test and listen to various audio tracks. My overall experience is that it offers very much the same sound quality, expansive sound stage, dynamic tones, and clear instruments; pretty much what the other latest AIYIMA amps offer based on the same TPA3255 and NE5532 amps.However, what sets this apart from others is probably its use case which is that it offers a mono-mode meaning, you can drive the left and right channel audio into two individual A07 Max and have the ability to push more power into the speakers (given you use the right power supply). Another distinction is that AIYIMA A07 Max does not have any Bluetooth support unlike the A07 Pro or the A08 Pro which maybe what might be preferred in certain cases. It not only simplifies the circuit and internal components but also keeps the cost down.Speaking of internal circuits, we can see from the images that AIYIMA has improved on the internal capacitors used. The two main capacitors have now be upgrades to Nichicon 63v as opposed to 50v used in a previous version. This gives it plenty of headroom to provide enough power during certain spikes in load. The TPA3255 chip is cooled with a massive heatsink that makes contact with the aluminum unibody, allowing it to dissipate the heat relatively quickly. There are plenty of vents on the sides and the bottom to circulate enough air to keep the amp at normal operating temperatures. The binding posts in the back are now much sturdier and feel premium compared to the other two amps. The posts are also staggered so there is more than plenty of room to plug in the speaker cables.I want to also quickly highlight the volume knob which also serves as the power switch similar to the A08 Pro and unlike the A07 Pro. However, the volume knob does not have physical indentations so you have to use visual markings to gauge the volume level. One thing to note is that in my experience, the volume knob had to be turned to at least 12 o'clock position to hear decent volume which I assume is because the potentiometer is a logarithmic and not linear.The NE5532 Op Amps are replaceable just like the case with A07 Pro and A08 Pro. Various other components are also upgraded over the previous two amplifiers so on paper, this amp should perform better which was evident when for example changing the volume while listening. The A08 Pro had a clear audible hiss when changing volume but A07 Max displayed no such behavior. It also suppressed any loud pops or noises when turning on.One thing that I did notice was that there was some cross-talk between the right and the left channel when using the mono-mode. I was able to hear the right channel audio coming into the left channel at quite high volumes but not so much as lower volumes.Overall, I believe this is a very decent and capable amplifier and even outperforms some other recent releases from AIYIMA in certain cases. The value for money is quite good and I definitely recommend this amp if you do not need the Bluetooth connectivity.

I have always appreciated/enjoyed high quality sound systems. First time considering using mini Class D power amps; did not know they existed. Chose the Aiyima A07 Max because of upgraded quality parts and design, along with good reviews. Using the A07 with Dell PC and Realtek High Definition Audio. I was using an aging Klipsch ProMedia 4.1 system; problems with it's amplifier and bass speakers. So I thought I would try and reuse the perfectly good four Klipsch satellites; 2 each channel. Was not expecting much low end response. If needed, might get an Aiyima DAC-A2 Headphone Amplifier DAC with Bass Treble Controls. Started off with just the A07 Max and the 4 satellites. Very clear/clean but not much bass, as expected. New idea; dusted off some vintage Acoustic Research AR 206HO bookshelf speakers (6" bass/midrange with tweeter). Made the world of difference. It was the quality of the speakers, not the A07 Max lack of performance. Great at all listening levels; full response solid sound. I am not saying it's in audiophile class, but for the cost, build quality, performance and value, it's impressive. This is not the ultimate setup for a computer, but starting to think I prefer this flexible type of configuration over the "all in one" choices, e.g., Klipsch ProMedia's 4.1.For reference: Computer music library in WAV format. Streaming movies; full sound effects and very clear dialogue. Using triangle speaker placement; speakers angled to center. Great separation and definition; listening to studio mix moving from channel to channel (audio panning). No amplifier noise in stand by mode. When pushed, stays cool. I definitely will not need DAC or different Op-amp. Aiyima A07 Max is perfect for my application.

I absolutely love class D amplifiers and have owned a few over the years to power my desktop speakers. When I saw that Aiyima released the A07 Max I couldn't resist upgrading. Long story short it works great on both my desktop setup and on a pair of tower speaker(s).The A07 Max looks and feels great. It's solidly constructed and the volume knob is smooth and has a satasifying click when powering on/off. I like the addition of the offset binding posts as it definitely made connecting my speakers easier. The 3.5mm aux jack is also perfect for connecting my subwoofer. It also feels like it runs cooler then my older amps.One of the main reasons I purchased this model was for the mono bridged mode. I've got a set of tower speakers for listening and have wanted to replace an aging receiver but have been waiting for a more descrete option. I'm happy to report that in mono mode the A07 Max easily powers them and sounds amazing doing so.If you're familiar with Aiyima amps it'll be no shock to hear that this amp sounds amazing. It offers the ability to upgrade both the power supply, for more wattage, and the op-amps, for better sound quality. that being said I feel that the included 36V 6AMP power supply provides enough for either of my setups. I've upgraded my op-amps in my older Aiyima and will most likely do the same for this one but I'm not in a hurry to do so.Overall I feel like this is another great amp from Aiyima and can easily recommend it to anyone looking for the features it offers.