【2.1ch Stereo Power Amplifier】 The AIYIMA A20 employs a Hi-Fi 2.1 fully balanced amplifier, TPA3255 amplifier chip, and LME49720 x 2 + NE5532 x 7 operational amplifier chips. It reproduces realistic sound quality with a high S/N ratio (≥116dB), low distortion (0.002%), high dynamic range (≥110dB), dual-channel pure output, and independent bass drive.
【HPF High-Pass Filter Adjustment】 The multi-gear allows adjustment of the high-pass filter (60-200Hz), precisely matching the lower limit of the speaker's low frequencies. This eliminates bass overload, clarifies mid-high frequencies, enhances overall sound quality and clarity, reduces distortion, achieves frequency division, and works in conjunction with a subwoofer.
【BYPASS Volume Bypass Function】 Press and hold the BYPASS button on the back of the device for 3 seconds to switch to volume bypass mode. The BYPASS function bypasses the amplifier's own tone control (bass/treble), equalizer (EQ), ambient sound processing (DSP mode, etc.), and most importantly, the preamplifier circuit, transmitting the input audio signal to the power amplifier circuit in the most direct and pure form. The volume is also fixed and unadjustable (usually at maximum). This feature is designed to pursue ultimate sound quality and can be integrated into more complex home theater systems: equipped with an active subwoofer output, it can build a complete 2.1ch home theater system.
【Replaceable Op-Amp Design】The AIYIMA A20 adopts the TPA3255 amplifier chip and adds the new LME49720 (replaceable) operator chip, allowing for interchangeable operator chips and a variety of replacement operator models: LM4562, NE5532, OPA2604, OPA2134, JRC5532, Muse02, etc., enhancing the product's appeal. Core components include German WIMA capacitors, Japanese Ruby capacitors, and Japanese NJW1195 volume ICs. Aiming for higher quality and better sound.
[Package Contents] AIYIMA A20 Balanced Stereo Power Amplifier *1, 48V 5A GaN Power Adapter *1, 12V Trigger Cable *1, User Manual *1, Warranty Card *1, 24-Month Warranty and Prompt Support Service.
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