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Aiyima's D03 is an FDA (Full Digital Amplifier) amplifier offering a nice energy reserve as well as a precise and transparent sound reproduction. It is indeed capable of developing no less than 2x120W under 4Ω (THD+N 1%) with a high efficiency, thanks to a TI TAS5624A amplifier chip. It also benefits from a particularly complete connectivity, with USB-B, Optical Toslink, Coaxial, stereo RCA (ADC PCM1808) as inputs, but also a Bluetooth 5.0 reception. Practical, this last one allows to diffuse remotely its music, from a smartphone, while taking advantage of the high resolution Bluetooth codecs aptX and aptX-HD. On the output side, there are of course speaker terminals but also an output for active subwoofer, on RCA connector. Technical characteristics Specifications NB 0 pour les câbles CANARE 4S11, fiches bananes obligatoires car tout ne rentrera pas et ne tiendra pas derrière l'intégré. Upgrade your speakers and subwoofer with a 150W@4ohm x2-channel amplifier, high-fidelity streaming music. There’s a subwoofer output for active subs, with a 2.1 V of power, and the unit has a THD of 0.001%. The recommended speaker impedance is 4-8 OHMs, and it has a power of 150W in 4 OHMs, with a 6% THD+N at maximum. The inputs include an RCA input, a USB input for PC, coaxial, Optical and Bluetooth. The bluetooth input allows for aptX, aptX LL and aptX HD, AIYIMA D03 being the best overall amplifier you can find at this price point as far as inputs and outputs go. When I watched a few movies on my computer I was surprised how clear the sound was compared to my TV setup (Samsung TV + JBL 400 soundbar). It was much easier to understand what people were saying (I tried sitting closer to the TV so see if there's a difference and there wasn't much).
AIYIMA D03 - EU Warehouse Ship AIYIMA D03 - EU Warehouse Ship
At the end of the day, the budget speaks. If you’re here because you want to stay low with the spending, and if you want the absolute best stereo hifi amplifier you can get for the money, with DAC, working, clean Bluetooth input, a separate sub output, and a TON of power to drive pretty much any speaker below 3000 USD, AIYIMA D03 will take a long way and is one of the most recommended stereo amplifiers I could be writing about. To get things going, I paired AIYIMA D03 with a few speakers including NHT C3, Buchardt S400, and KLH Model 5. Surprisingly, AIYMA D03 has more than enough power for all of those, even KLH Model 5, which is a pretty large 3-way speaker with a 10″ Bass Driver. I am sitting at around 20/100 for a comfortable listening experience. AIYIMA D03 has no problems with large tower speakers with multiple drivers either, and the amp tech itself is really efficient and powerful. I have used it both as a standalone amplifier, but also as a DAC/AMP using the USB cable provided by the company. In all honesty, I prefer the sonic signature when using it as a DAC/AMP, and most DACs won’t improve the sound too much, since the unit has some internal processing happening, so I would recommend using optical, USB and Bluetooth above the analogue RCA input.
It is light at 670 grams, and has a rather small size of 151x141x37mm. The USB input allows for signal decoding as high as 24 bits / 192kHz, the DAC inside being pretty good for the job. Speaking of the DAC, the unit has a CS8422, along with a Bluetooth chip QCC3034. Using D03 is fun, it runs rather hot during usage, and it has a rich selection of inputs, and one output, for speakers, but also a separate sub output for active subwoofers, which in my book makes it a 10/10 from the get go, since this feature is rather rare in the price point.
AIYIMA D03 Bluetooth 5.0 Digital Amplifiers 150Wx2 Stereo
AIYIMA Audio D03 is a Hifi Amplifier in Class D, priced at 160 USD at the moment of writing today’s review. Given the low price point, it will be compared to other entry-level and super affordable desktop hifi amplifiers, including Arylic A50 (220 USD). Built with multiple input of Bluetooth/USB/optical/coaxial/RCA, including a remote control that infrared adjust the inputs mode/volume/bass/treble/mute/loudness setting ec The overall signature can be described as neutral, clean, and fairly dynamic. Even after making abstraction of its price point, I am having a good experience listening to music using all of my speakers through D03, but the sound from the speakers alone seems to have some bass cutoff / rolloff, even quite high at around 70-80Hz. Unfortunately, it was quite complicated for me to connect my powered amplifier, the Adam Audio T10S, because it has RCA or XLR inputs, and I could not use the single RCA output of D03 easily, since T10S takes in stereo signal.
Specifications
AIYIMA D03 vs Arylic A50 (130 USD vs 220 USD) – While the comparison can feel unfair because A50 is more pricey, it also has a different set of features, including multi room and streaming, while D03 has bluetooth at most. The driving power is much higher on D03, with more control and lower distortion. The bass has a much more rolled off presentation over the speaker output, but it has an active sub output, and D03 is more detailed, has less audible distortion and better details than A50. It can do much less, but it has a much better DAC, you can use it as the soundcard of your PC, and if you have nothing else, it will happily serve your music needs for a good while. As long as your speakers don’t cost above 1000 USD, both of those are good amplifiers, and the rule here is that A50 has better bass for speakers, if you don’t have an active sub. If you have an active sub, D03 has a richer set of features, including a much better USB input, better bluetooth, and is more recommended.
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