AIYIMA A20 PFFB Power Amplifier TPA3255 Hifi 300W X2 Stereo Power Amp With XLR/RCA Fully Balanced Input HPF High Pass Filter
SPECIFICATIONS
1: High-end components: The A20 amplifier uses the TPA3255 Class D amplifier chip and is equipped with German WIMA, Japanese Genicon, Ruby capacitors and gold-plated terminals. achieving a signal-to-noise ratio (SNR) of up to 116dB and a distortion rate as low as 0.002%
2: 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.
3: Rich connectivity options: with RCA/XLR input interfaces and a12V trigger
4: Balanced inputs effectively reduce noise, providing pure stereo output, and restore true sound quality through independent low-frequency drivers
5: The 12V trigger input interface enables synchronised control with other devices, simplifying the power switch operation process without the need for separate operations
6: 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
7: BYPASS Function: The A20 Integrated Amplifier features a bypass mode, which reduces audio quality loss, making it a high-fidelity pure power amplifier
8: 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.
Brand Name: Aiyima
Certification: CE,EAC
Channels: 3 (2.1)
Control Method: Push button
High-concerned chemical: none
Material: Metal
Maximum Power Per Channel: Above 200W
Model Number: aiyima T20
Origin: Mainland China
Output Power: 300W
Package: Yes
Surround sound channel configuration: Others

Product Specification:
Power amplifier chip: TPA3255
OP amp chip: LME49720*2 (plug-in), NE5532*7 (surface-mount)
Replaceable OP amp chips: LM4562, NE5532, OPA2604, OPA2134, JRC5532, Muse02, etc.
Other key components: WIMA capacitor/Ruby capacitor/Japan NJW1195 volume IC
Input interface: RCA, XLR
Output interface: SPEAK OUT, SUB OUT
Other interfaces: 12V trigger input
Signal-to-noise ratio (SINAD): ≥95dB
Signal-to-noise ratio (SNR): ≥116dB
Dynamic range: ≥110dB
Distortion (THD+N): 0.002%
Speaker impedance: 4-8Ω
Input sensitivity: RCA: 2V XLR: 4V
SUB output level: 2V
SUB output frequency range: 20-200Hz
Frequency response: 20Hz-20kHz (±0.4dB)
Output power: 300W*2 (4Ω)
Other Features: BYPASS Volume Bypass/RCA Gain (3dB)/HPF High-Pass Filter (60-200Hz)
Supported devices: mobile phones, tablets, computers, decoders, preamps, streaming media, CD players, etc.
Output mode: 1. Passive speaker 2. Passive speaker + active subwoofer
Working power supply: DC 24-48V
Product size: 190*142*46mm
Packing size: 296*228*77mmmm
A20 Amplifier net weight: 1115g
Package Include:
A20 Amplifier x1
12V trigger cable x1
Warranty Card x1
User Manual x1
48V 5A GaN Power Adapter X1 (depends on the option you choose)















- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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