AIYIMA A80 Power Amplifier DAC with PFFB TPA3255D2 Stereo HiFi 2.0 Channel Class D Bluetooth amp 300Wx2 ESS9038Q2M Decoder Mini desktop PC USB Coaxial Optical TRS RCA Input

All-in-One DAC Amplifier: A80 stereo decoding amplifier uses DAC chips - ESS9038Q2M and TPA3255D2 chips,with Rubycon capacitors, German WIMA capacitors and professional audiophile grade componentsIt makes the power up to 300W @4Ω, which brings powerful dynamics and makes the sound quality more pure. High performance: A80 DCA amplifier's TRS/RCA signal-to-noise ratio is up to 109dB, total harmonic distortion (THD) as low as 0.006%, to ensure high-quality conversion of audio signals. PC-USB input supports PCM: 384Khz/32bit transmission and DSD256 playback, suitable for users in pursuit of the ultimate sound quality. Rich input and output: This amplifier supports RCA, TRS, PC-usb, optical, coaxial, Bluetooth input modes and 12V trigger input. Note: The 12V trigger must be connected to a preamplifier and must come with a 12V trigger output（not compatible with WiiM brand.）The AUX input can be connected to a passive subwoofer or the next amplifier. Provide users with a variety of connection options, easy to integrate with a variety of audio sources and playback devices to adapt to different use scenarios. Outstanding Bluetooth Connection: Using the chip QCC3040 wireless Bluetooth 5.1, support AAC, SBC, aptX, aptX-LL, APTX-HD,24bit44.1khz to achieve lossless transmission, you can easily use your smartphone or tablet PC to transfer your favourite songs losslessly.Equipped with a remote control, easy to operate, can be combined into a powerful hi-fi home audio system. Excellent design: The A80 DCA amplifier is full of technology, a combination of fashion and retro, with an electronic UV display design, spectrum analyzer display, and 3 different display options, you can switch the mode you want. It can clearly display input status and volume and other information in real time, especially in scenes such as playing games, parties, etc., and enjoying classic songs, showing very good dynamic image effects. PFFB circuit design: A80 uses PFFB (post-filter feedback) technology to effectively overcome the common load dependence problem of Class D amplifiers, improve distortion, enhance frequency response, and thus greatly improve sound quality and performance. Compatible with a wide range of op-amp chips: If you want to personalise your audio experience with the A80's op-amp rolling feature, you can try using a compatible eight-pin dual op-amp chip, such as:RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612 and so on.Note: It is to replace the op-amp chip of the second board underneath. Please note: For the analogue audio input ports on the A80 amplifier, if using a 3.5mm jack connected to a computer, a 3.5mm to RCA adapter cable is required. Please purchase a 3.5mm to RCA conversion cable separately. When using fibre optic input, please inspect your fibre optic cable for defects and verify that your equipment, parameters, interfaces, and specifications are not incompatible. What you will get:A80 DAC Amplifier*1,48V5A GaN Power Supply*1,Manual*1