AIYIMA A70 Balanced Stereo Amplifier with PFFB,TPA3255 2 Channel Class D Amp for Desktop Home Theater Bookshelf Speaker,with XLR&RCA Inputs&Trigger Input (A70 + DC48V 5A Power Adapter)

【With PFFB design】The AIYIMA A70 is the first stereo home audio Class D amplifier on the market based on the TI TPA3255 chip with a post-filter feedback loop (PFFB),The A70 Class D amplifier with PFFB implementation,it have no load dependency together with lower distortion 【Six-Layer Amplifier PCB Board & Four-Layer Tone Board Design】This A70 integrated stereo amplifiers Provides better electrical isolation and impedance control,Achieve superior sound quality and high performance,Boosts signal stability and audio purity, enhancing performanceand interference resistance for superior sound output 【With 12V Trigger Input & RCA audio input】The trigger input to allow one button power up of the audio chain from the source,Simple and convenient; There is a switch to add 3 dB of gain to RCA input. This gain switch can be used to boost the signal input at RCA inputs 【With balanced input】the AIYIMA A70 Class D Stereo Amplifier with XLR audio signal input ,This design minimizes interference and reduces noise floor 【With RCA & Sub output】A70 integrated stereo amplifiers Add the sub output with variable filter output,The sub output is controlled by the volume setting,and Added adjustable cutoff frequency (20-150hz/20-600hz) for low-pass filter output,Easily build 2.1-channel Audio systems to match any of your desktop speakers 【Professional Audio Components】Simple appearance with professional audio components provides excellent performance,With a measured SINAD of up to 96dB and a SNR of 116dB, it delivers exceptional audio quality.Excellent in Class D Stereo Power amplifiers; And upgraded high-quality terminals help to install more robust speaker terminals 【With 48V 5A GaN Power Adapter】The use of GaN transistors allows for high efficiency, low heat, safety, reliability and stability,to delivers strong amplification for your home audio amplifier speakers 【Replaceable op-amp chips】Explore subtle changes in sound quality by swapping out op-amp chips to add to your customization fun,such as Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc

The A70 is a versatile desktop headphone amplifier suitable for a variety of audio sources. Its straightforward controls allow you to easily power on the unit and select between balanced XLR and unbalanced RCA inputs. A switch adds gain to the RCA input for compatibility with different source levels. Featuring a high efficiency TI TPA3255 chip amplifier module, the A70 utilizes post filter feedback loop technology to minimize load dependency and distortion from the output stage. With its 48V/5A power supply, the amplifier delivers clean and accurate sound reproduction for any headphones. An ideal choice for audiophiles seeking an efficient desktop solution for critical listening from multiple audio sources.

AIYIMA A70 Balanced Stereo Amplifier Home Audio Component Mini 2 Channel Amp TPA3255 for Subwoofer Desktop Home Theater Bookshelf Tower Floorstanding Passive Speakers with 48V Power Supply

Richer Connectivity: Debut amplifier with balanced input and trigger in, the AIYIMA A70 features a balanced combo audio signal input connector supporting XLR . This design minimizes interference and reduces noise floor. The 12V trigger-in connector enables synchronization with other devices, streamlining the process of turning on/off without individual operations

Audiophile-Grade Components: The AIYIMA A70 features the TPA3255 high-end Class-D amp chip and utilizes premium Japanese NCC, ELNA, and German WIMA capacitors, and Japanese inductors for exceptional audio quality. With a SINAD rating of up to 89dB, an SNR of up to 116dB, and a lowest noise, it delivers exceptional clarity and low distortion

Advanced Heat Dissipation: we upgraded A70's cooling system by featuring a larger chassis, moving vents to the sides, and adding dust covers to achieve better ventilation for a sustained and stable high power output

Enhanced Scalable Fun: Personalize your audio experience with the op-amp rolling feature! The A70 stocks two swappable op-amps for left and right channel outputs, balanced input, and subwoofer output. Experiment with compatible DIP8 dual op-amps such as Sparkos SS3602, MUSES02, OPA2604, OPA2134PA, OP249, AD827, RM4558, LM4562, LME49720HA, etc. to fine-tune your sound to perfection