AIYIMA A20 Balanced Stereo Amplifier with HPF Adjustment Home HiFi 2.0/2.1 TPA3255 Integrated Power Amplifier desktop class D amplifier PFFB with RCA/XLR Input &12V Trigger-in for Passive Speakers
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Product description
- High-end components The A20 hifi stereo amplifier uses the TPA3255 Class D amplifier chip and is equipped with German WIMA, Japanese Genicon, Ruby capacitors and gold-plated terminals. It delivers a maximum output power of 300 watts at 4 ohms (this requires a 48V 10A power supply), ensuring exceptional sound quality while achieving a signal-to-noise ratio (SNR) of up to 116dB and a distortion rate as low as 0.002%, resulting in extremely clear and low-distortion audio performance.
- HPF High Pass Filter Adjustment The TPA3255 desktop amplifier features an adjustable high pass filter (HPF) with an adjustable range of 60-200Hz. It optimises mid and high frequencies for clear and transparent mid and high tones while minimising low frequency interference. It enhances clarity and creates a dynamic sound field, making it a great choice for home stereo and home theatre audio systems.
- Rich connectivity options This 2.1 fully balanced stereo amplifier is equipped with RCA XLR input interfaces and a 12V trigger. Balanced inputs effectively reduce noise, providing pure stereo output, and restore true sound quality through independent low-frequency drivers. The 12V trigger input interface enables synchronised control with other devices, simplifying the power switch operation process without the need for separate operations.
- Enhanced sound quality The A20 Class D amplifier uses two LME49720 (plug-in) and seven NE5532 (surface-mount) operational amplifier chips to achieve ultra-low distortion, low noise, and extremely transparent sound quality without colouration. Different audio experiences You can replace the LME49720 operational amplifier chip with LM4562, NE5532, OPA2604, OPA2134, JRC5532, Muse02, etc., to precisely tune the sound quality to perfection.
- BYPASS Function The A20 Integrated Amplifier features a bypass mode, which reduces audio quality loss, making it a high-fidelity pure power amplifier. Note In bypass mode, the amplifier volume is set to maximum. Before switching to bypass mode, please lower the volume at the source end to avoid hearing damage and speaker damage. This mode has a memory function; to exit, press and hold for three seconds.
- PFFB circuit design A20 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.
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