AIYIMA D03 Bluetooth 5.0 Digital Amplifiers 150Wx2 Stereo HiFi 2.0/2.1 CH Desktop Sound Amplificador 24Bit/192kHz Class D Power Amplifier USB DAC Coaxial Optical OLED AptX Support Subwoofer

It offers excellent connectivity options, and the built-in DAC is a fantastic bonus, supporting high-res audio even over Bluetooth. It does get a little warm after continuous use for an hour. Its compact size makes it a perfect fit on my desktop table. I'm using it to drive my old Sony bookshelf speakers along with a T5 active subwoofer. The sound quality is outstanding with good stereo separation and imaging. It's truly value for money.

This is a great little amp which can give entry level integrated amps from Yamaha, Marantz, Denon, etc. a run for their money. I have set this up with ELAC B6.2 bookshelf speakers and feed audio from Fiio M9 over Bluetooth aptx hd. Bass: Full bodied and fast enough. No need to eq it up or down. Great bass I would say. The bass on my Marantz is probably very marginally tighter making it more nuanced, but really small difference - may also be because the Marantz has a flatter sound with lower bass by default. One good thing is that boosting the bass gives better results on this amp than on my Marantz because of the boost frequency and bandwidth. Mids: Marginally recessed compared to the Marantz PM5005 but better than Yamaha which has more of a V shaped signature. Overall ok mids, no issues. Treble: Again no need to eq it. This amp is not at all thin sounding, very neutral I would say. Pros: Comes with a 32V 5A power supply which should be sufficient for home use. Comes with a full function remote. Comes with the PC usb cable and optical cable. Small footprint. Bluetooth works flawlessly in aptx hd. No drops, glitches. Remembers last input mode, volume and bass treble settings. Has 100 step volume control. This is quite important for making subtle volume changes with sensitive speakers. If it had a 30 step volume I would not have bothered buying it. Cons: In bt mode you can do next/prev track but no pause button. Track change responds almost after a second - very slow and may confuse you to multiple key pressing initially. It gets quite warm (just short of hot) after sometime even at volume 50. I had expected it to run cooler. Update: I tested this with a 12V power supply and there was no heating. Sound was still quite loud for in room use with no degradation of sound quality. It also ran well on 12 v lithium battery. Power and Mode button has same icon on the front panel. Overall good price/performance. Poor recordings and old Bollywood songs will sound better on this with a treble cut than on a midrange focused high end amp. Giving 4.5/5 as of now. Recommended.

I was on the lookout for an economical amplifier since niggling issues kept creeping up on my NAD C320BEE. But new amplifiers of similar specs were just too expensive for my budget, and used amplifiers always were questionable with repsect to reliability and authenticity. Thats when I came across the current trend of digital amplifiers, or class D amplifiers. I was sceptical about the quality of these amps but after going through many reviews, I thought it was worth a try. So I ordered this AIYMA without much expectations as to the performance. Hooked it up and was thoroughly disappointed. It sounded thin and lifeless. I thought I may be made a mistake. But I didn't give up. I checked the connections once again and noticed that I had wrongly hooked up the banana speaker connectors, I had mixed up the +& - signs. No wonder it lacked bass! I gave it a second try and this time it was much better. Still, the midrange lacked body. I thought may be the tone settings were incorrect and I was right. The bass was turned down -10 db! Set it to 0 and then it began to sing. Boy was I pleased. The bass had more depth and the midrange had good presence. The highs were clear without being harsh. The music was truly enjoyable. This is a truly value for money proposition. Compared to my NAD, it lacked a bit of warmth, but it is very engaging. I found myself skipping through tracks, eager to know how each track sounds on this amp. And I was never disappointed. I found myself tapping my feet to each track. Now I don't know how hi end systems sound, but I know that this is a clean sounding, powerful amp. The only thing I miss on this amp is a larger display and a better enclosure, because this does look cheap to be honest. In fact, the front fascia had some minor scratches on it. Nonetheless, I would recommend this amp to anyone with a tight budget and space! Absolute value for money!

I was a little skeptical when I first started exploring this product online. However, I am glad that I bought it. It is well built, has a small footprint owing to it being a class D amplifier and the fact that the power-supply is external. Has almost all connectivity options. Most of all the quality of sound is awesome. It does not have an equalizer, but has bass and treble controls. My 3 way speakers sound so good when paired with this. I would highly recommend this to all audiophiles. Make sure you have good quality speakers that can handle the power output and render the base and treble.

Sound quality is good, so is the build quality. Worst part is the remote, very flimsy build. Mine stopped working in a year. On sending email the service was good and they sent me a new remote, took about 15 days. But not sure what will happen if the remote goes bad after warranty expires. The original remote looked like it was repaired. I opened it to have a look. It's something you normally cannot source locally. Hence reduced one star, rest is all fine. They should do something about the remote, you loose important features like base and treble adjustments without the remote. The physical buttons are also not that promising when you press them, so remote quality needs an improvement.

Easyly connect Bluetooth and other connection like a smart small device. Soundwise crystal clear, thumping bass, good height high frequncies with best resolution. This looking amp. Thanks for reading.

Didn't think that this little amplifier can compete with big brands like Onkyo or Yamaha. As I have an onkyo avr and Yamaha rn 803 stereo receiver, I can compare this little amp with these big brands. Extremely happy with the quality and clarity of sound. There is no pop-up noise during power on & off.

Pros : Value for money amplifier giving wide range of choices for Inputs- USB, Aux, Coa, Opt , BlueTooth...and with 2.1 output (around 150W per channel @ 4Ohm imp speakers). best Audio output in the order of USB,Opt, BlueTooth , Aux (works with Iphone through decent connector) Cons: Lack of HDCP security protocol , prevents connecting Opt port to latest 4K TV and Jio Settop box for accessing sound for Hotstar, Netflix, prime videos. Bluetooth connection not easily recognisable on Laptops, Ipads . Worked with Iphone 11

The Aiyima D03 amplifier arrived yesterday, it was literally out of the box and a plug-and-play operation. It has a very clean and balanced sound and a remote control with which I can adjust volume, bass, and treble. The amplifier is very responsive and connected to my desktop computer. Since the streaming service I use can offer a greater bit-rate than my computer's internal DAC, this amplifier with its 24-bit/192Khz DAC is a very nice match to get the most out of my streaming system. The unit came complete with USB and optical cables as well as a power supply. I drive a pair of B&W dm601's with the amplifier and a JAMA active subwoofer. I have also connected the amplifier to a pair of B&W dm603's with a pleasing sound and no problems at all driving these larger floor-standing speakers. I have no hesitation in recommending this d-class amplifier. In the picture the Aiyima D03 and the Behringer microphone pre-amp for my video conferences (everybody sounds as if they are in my study!)

Pour info, j'en suis très content, super toutes les entrées, pour ma part fonctionne bien avec l'USB sur. Windows 11. Également en bluetooth aussi, Essais avec qobuz et petites enceintes de mini chaine anciennes Kenwood. Je vais le mettre sur mes kef mais je n'ai pas les bonnes longueur de câble. Hâte de l'écouter sur la hifi. La télécommande fonctionne bien aussi +-5 M salon. EDIT branché sur mes Kef biblio très bon son pour moi écouté sur plusieurs genre de musique , pièce de 20M², écoute principale Qobuz et vinyles, Mélomane mais pas audiophile.

Le Aiyima D03 est un ampli numérique fort compact, dernière itération des amplis de Aiyima. C'est un ampli très compact, doté d'un interrupteur d'allumage en façade, d'un bouton pour changer les sources et d'un potard de volume. Le potard est egalement un bouton permettant de changer basses et aigues à la volée. En façade arrière, l'amplificateur présente une prises USB B un port d'antenne bluetooth, une entrée coaxiale numérique, une entrée coaxiale analogique ainsi qu'une sortie subwoofer. Les connecteurs de cable d'enceintes acceptent les fiches bananes, ce qui est vivement conseillé. L'ampli est alimenté par un transformateur délivrant 32 volts. Une télécommande est fournie, celle-ci présente une bonne portée. L'amplificateur est détectée automatiquement sous windows 10, aucun driver n'est nécessaire. Le son est bon plutôt rond, riche en basse même lorsque les basses sont réglés sur 0. Le son est très différent du modèle A07 de Aiyima, moins chirurgical, plus enveloppant, ce que personnellement j'apprécie beaucoup pour écouter rock ou electro. Pour faire simple, à réception, le D03 a immédiatement remplacé le A07. Un très bon ampli que je conseille pour un prix très contenu.

Non conoscevo questo marchio ed ero un po' scettico. Invece sono rimasto piacevolmente sorpreso, sia dalla qualità costruttiva che dalla resa. Punti a favore: buona potenza, versatilità di input (soprattutto l'ingresso ottico per la TV), possibilità di collegare un subwoofer attivo che già possedevo e dulcis in fundo un telecomando. Per il momento tutto sembra funzionare a dovere. Ho collegato delle Dali Spektor 2, un sub Yamaha SW201, un mixer in entrata AUX (per poter utilizzare un microfono Shure) e sono molto soddisfatto del suono, anche tenendo basso il volume del sub. Il pannello delle info è un po' piccolino per chi legge da una certa distanza ed ho sfruttato anche la porta USB collegandoci con successo un mini PC. Per ora 5 stelle che mi riprometto di aggiornare se dovessi riscontrare problemi. PS: a differenza di quanto riportato da alcuni recensori l'alimentatore fornito è già a 36v

Low cost, versatile with digital and line inputs for streaming sound from digital sources to passive speakers. I use mine for streaming music from Amazon Music, internet radio (eg Radio Paradise - Mellow Mix) or my store of CDs on my NAS Drive. It's also good at enhancing sound from TV or network Video. I use mine with a Beelink Mini Pc as source via USB or LG TV via Toslink in a bedroom setting using Mordaunt Short M10 bookshelf speakers. By careful adjustment of tone controls I have managed to achieve a full stereo output at either low or higher volume, depending on time or mood, which is full, focussed and extended. (Nah, I'm just trying, badly, to seem like a hifi buff. To be honest, with a nice set of small speakers in a small room context, it makes music and video sound really good at a modest cost. )