Douk Audio A5 TPA3255 Stereo Amp HiFi Audio Class D Amplifier High-Pass Filter Home Power Desk Amp 300W with 32V/5A Power Supply

Features HiFi Sound with Adjustable High-Pass Filter: This TPA3255 amplifier features an adjustable high-pass filter (HPF) 30-200Hz to refine mid-high frequencies while minimizing low-frequency interference. Perfect for bookshelf or passive speakers, it enhances clarity and creates a dynamic soundstage ideal for home stereo and theater audio systems. Easy Customization with Plug-and-Play Op-Amps: Upgrade your sound effortlessly! Douk Audio A5 includes a tempered glass access panel for quick op-amp replacements, allowing audiophiles to tailor sound profiles without disassembling the unit. PFFB Technology and High-Performance PCB: Built with Post-Filter Feedback technology circuit and a 4-layer immersion gold PCB, this digital amplifier reduces distortion and improves frequency response. Enjoy unparalleled audio precision, enhanced signal integrity, and effective heat management. Stunning Design for Living Rooms and Studios: Sleek and modern, the compact power amp is equipped with a transparent panel and adjustable internal LED lighting. Multiple color options create a futuristic look, adding sophistication to your home audio setup or studio. 300W×2 Power with Premium Components: Powered by the TPA3255 chip and premium components, A5 delivers distortion-free audio with ultra-low THD (0.002%) which is perfectly compatible with the DAC-Q11. Whether you're enjoying weekend movie nights, evening music sessions, or after-work relaxation, A5 can deliver exceptional sound quality. Warm tipsThe A5 with 2PCS pluggable NE5532 op-amps, can be upgraded by dual op-amps like 2134/2604/5532/2068/muse02 etc.Parameters Brand: Douk Audio Model: A5 Audio input: Stereo RCA Audio output: Banana speaker jacks/3.5mm AUX High-pass filter adjustment range: 30Hz-200Hz Max. output power: 300W2 (4Ω) Matched speaker impedance: 4-8Ω THD+N: 0.002% SNR: ≥114dB Input sensitivity: 2V AUX rated output level: 3.7V Frequency response: 20Hz-20kHz (±0.7dB) Working voltage: DC 24-48V Dimensions (WDH): 959250 / 3.743.621.97in Package dimensions (WDH): 26524065mm / 10.439.452.56in Net weight: 506g / 1.12lb Package weight(with 32V5A power supply): 1100g / 2.43lb Package weight(with 48V5A power supply): 1200g / 2.65lb Power Output Table of  The A5  Power Supply Speaker Impedance Rated Output Power 32V/5A 4Ω  78W+78W 6Ω  71W+71W 8Ω  65W+65W 36V/6A 4Ω  107W+107W 6Ω  100W+100W 8Ω  94W+94W 48V/5A 4Ω  120W+120W 6Ω  110W+110W 8Ω  102W+102W 48V/10A 4Ω  250W+250W 6Ω  210W+210W 8Ω  185W+185W Packing list 1 A5 Amplifier 1* DC 32V/5A Power Adapter(Optional) 1* DC 48V/5A Power Adapter(Optional) 1* User Manual