AIYIMA A70 Balanced Stereo Amplifier with TPA3255 Class D Amplifier for Desktop Home Bookshelf XLR RCA Inputs Trigger DC 48V 5A Power Adapter Included

[Equipped with PFFB] The AIYIMA A70 is the market's first stereo home audio Class D amplifier based on TI's TPA3255 chip, which features a post-filter feedback loop (PFFB). [Equipped with 12V trigger input and RCA audio input] The trigger input allows you to easily activate the audio chain from your source with a single button. This gain switch can be used to boost the signal input to the RCA input. [Balanced Input] The AIYIMA A70 stereo amplifier uses XLR audio signal input. [With RCA output and sub-channel output] The sub-channel output with variable filter output is controlled by the volume setting, and the low-pass filter output has an adjustable cutoff frequency (20-150Hz/20-600Hz), making it easy to build a 2.1 channel audio system that matches your desktop speakers. 【Professional Audio Components】These professional audio components boast a simple appearance, superior performance, and a measured SINAD of up to 96dB and an S/N ratio of up to 116dB, delivering excellent audio quality. [Replaceable Op-Amp Chips] By swapping out op-amp chips such as Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4558, LM4562, and LME49720HA, you can explore subtle changes in sound quality and increase the enjoyment of customization. [A70 Note] When turning off the power, you may hear a slight popping sound, but this is normal. Please do not worry. Chipset: TPA3255+NE5532