Features: Upgrade your speakers and subwoofer with a 150W@4ohm x2-channel amplifier, high-fidelity streaming music. Bluetooth 5.2 amplifier with APTX-LL let you stream music and stereo sound in crisp. With a world of input mode options, D03 is always getting satisfy in different occasions. 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 Description Model:AIYIMA D03 Color:Black Chipset:MS8422+QCC304X+SA9123I+TAS5548+TAS5624+PCM1808+DRV603 Bluetooth chip: QCC304X Bluetooth 5.2 support: ACC, SBC, aptX, aptX-LL, APTX-HD. PC-USB/optical/coaxial sampling rate: 24bit/192khz PC-USB operating system: Windows XP / Vista7/8/10 / Max OS/MAC/Linux/Mobile OTG Signal to noise ratio: 93db Tonal gain (treble and bass): ±14 Input sensitivity: 0.775V Frequency response: 20-20Khz (±1.25db) Subwoofer output level: 2.1V Total harmonic distortion: 0.001% (1kHz 1w) Speaker impedance: 4-8Ω Output power: 150W*2 (4Ω load) 36V, 6%THD+N Input mode: RCA/Bluetooth/PC-usb/optical/coaxial Support equipment: mobile phones, tablets, computers, MP3, TV, etc. Output mode: passive speaker, active subwoofer speaker Working power supply: DC24v-36V(DC32V 5A power recommended) Size: 151*141*37mm Product net weight: 670g Weight with packaging and power supply: 1500g Package included: 1*D03 amplifier 1*Remote control 1*Bluetooth antenna 1*Power Adapter(optional) 1*USB Cable x1 1*Optical Cable x1 DIY Forums: https://www.audiosciencereview.com/forum/index.php?threads/aiyima-d03-class-d-amplifier-subjective-review.25686/

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