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  • VIDEO
AIYIMA A20 2.1 Channel Fully Balanced AmplifierYima Top
  • AIYIMA A20 2.1 Channel Power Amplifier,300Wx2 Balanced Stereo Amp with Adjustable HPF(60-200Hz)&Sub Out,PFFB+TPA3255 Class D HiFi Amp,XLR/RCA Inputs,12V Trigger,for Home Theater Speakers
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AIYIMA A20 2.1 Channel Power Amplifier,300Wx2 Balanced Stereo Amp with Adjustable HPF(60-200Hz)&Sub Out,PFFB+TPA3255 Class D HiFi Amp,XLR/RCA Inputs,12V Trigger,for Home Theater Speakers

4.6 out of 5 stars (88)
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About this item

  • 【Reference-Grade Performance​】Achieves an exceptional 116dB signal-to-noise ratio (SNR) and an ultra-low 0.002% THD+N, ensuring a perfectly black background and pristine, uncolored sound reproduction. Hear every detail of your music with absolute clarity
  • 【Professional 2.1 System Hub】Features an adjustable High-Pass Filter (HPF: 60-200Hz)—a game-changer for system integration. It protects your main speakers from bass distortion, dramatically improves mid-range clarity, and works seamlessly with the Subwoofer Output to create a powerful and articulate 2.1 system
  • 【Audiophile-Grade Features & Flexibility】Designed for enthusiasts. Includes BYPASS mode for use with an external preamp, +3dB gain switch for source matching, XLR/RCA input toggle, and LME49720 op-amps,can swappable op-amps design, The 12V trigger ensures seamless integration into automated systems
  • 【Premium Build & Components】Built on a 4-layer gold-sunk PCB for superior signal integrity. Loaded with high-end components including German WIMA capacitors and Japanese Rubycon capacitors, guaranteeing both stellar sound quality and long-term reliability
  • 【Perfect Pairing with T20】Part of the AIYIMA high-performance ecosystem. effortlessly connects with the AIYIMA T20 Tube Preamp via the 12V trigger for a one-touch, fully balanced, high-fidelity system that combines tube warmth with solid-state power
  • 【Excellent Cooling System】The internal air convection design ensures long-lasting and stable high-power operation
  • 【Please Note】 10th Anniversary Edition A20, now available in limited quantities; And only the standard version of the A20 will be released going forward.
› See more product details

Product details

  • Product Dimensions ‏ : ‎ 19 x 14.2 x 4.6 cm; 1 kg
  • Date First Available ‏ : ‎ Aug. 18 2025
  • Manufacturer ‏ : ‎ AIYIMA
  • Place of Business ‏ : ‎ AIYIMA TECH
  • ASIN ‏ : ‎ B0FMR7SLP4
  • Item model number ‏ : ‎ A20
  • Country of origin ‏ : ‎ China
  • 鶹 Rank: #12,099 in Electronics (See Top 100 in Electronics)
  • Customer Reviews:
    4.6 out of 5 stars (88)

Frequently bought together

This item: AIYIMA A20 2.1 Channel Power Amplifier,300Wx2 Balanced Stereo Amp with Adjustable HPF(60-200Hz)⋐ Out,PFFB+TPA3255 Class D HiFi Amp,XLR/RCA Inputs,12V Trigger,for Home Theater Speakers
$268.99
Get it by Wednesday, Dec 31
In Stock
Sold by Yima Top and ships from 鶹 Fulfillment.
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AIYIMA T20 Fully Balanced Tube Preamp, Swappable Op-Amps and ECC83 Tubes, XLR/RCA Inputs/Outputs,with Remote Control, for Hi-
$229.99
Get it by Monday, Jan 5
Only 1 left in stock.
Sold by Yima Top and ships from 鶹 Fulfillment.
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From the brand

Product Description

AIYIMA A20 POWER AMPLIFIER
BYPASS

Bypass Preamp Function

  • Long press for three seconds to enable one-touch volume direct access. The system integration is more flexible,delivering pure lossless audio quality.
  • Please note: In BYPASS mode,the amplifier volume is maximized. Before switching to this mode, reduce the volume at the audio source to prevent hearing and speaker damage. This mode has memory function; long press for three seconds to exit.

power on /off and HPF switch

Switch and HPF Mode Selection

Flip the switch to switch modes effortlessly.

Flip the switch upward to activate HPF mode.

Multi-level adjustable high-pass filter (60-200Hz)

Multistage Adjustable HPF

precisely matches the low-frequency cutoff of speakers（60-200Hz）, prevents bass overload,ensures clear and transparent mid-high frequencies.

12v trigger

12V TRIGGER IN

Compatible with AlYIMA T20 and other devices

supporting trigger output function, eliminating the need for tedious one-by-one power-on process.

XLR INPUT

Supports balanced XLR input

Pure signal transmission for perfect high-fidelity sound reproduction.

Power Amp Chip TPA3255
Op-amp Chips LME49720*2 (plug-in), NE5532*7 (SMD)
Replaceable Op-amp Ghips LM4562, NE5532, OPA2604, OPA2134, JRC5532, Muse02, etc.
Other Key Components WIMA capacitors / Ruby capacitors / Japanese NJW1195 volume IC
Input RCA, XLR
Output SPEAK OUT, SUB OUT
Other Connector 12V Trigger Input
SINAD ≥95
SNR 116dB
Dynamic Range ≥110
THD+N 0.002%
Speaker Impedance 4-8Ω
Frequency Response 20Hz-20kHz (±0.4dB)
Additional Features BYPASS Volume Bypass / RCA Gain (3dB) / HPF High-Pass Filter (60-200Hz)
Output Power 300W*2 Peak Condition (4Ω 48V 10A) ；BUT the T20 is sold with 48V 5A power supply.
Working power supply DC 24-48V
Sponsored
|
FREE delivery Wed, Dec 31
$109.99
FREE delivery Mon, Jan 5
FREE delivery Wed, Dec 31

Product Summary: AIYIMA A20 2.1 Channel Power Amplifier,300Wx2 Balanced Stereo Amp with Adjustable HPF(60-200Hz)&Sub Out,PFFB+TPA3255 Class D HiFi Amp,XLR/RCA Inputs,12V Trigger,for Home Theater Speakers

From AIYIMA

4.6 out of 5 stars, 88 ratings

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About this Item

  • 【Reference-Grade Performance​】Achieves an exceptional 116dB signal-to-noise ratio (SNR) and an ultra-low 0.002% THD+N, ensuring a perfectly black background and pristine, uncolored sound reproduction. Hear every detail of your music with absolute clarity
  • 【Professional 2.1 System Hub】Features an adjustable High-Pass Filter (HPF: 60-200Hz)—a game-changer for system integration. It protects your main speakers from bass distortion, dramatically improves mid-range clarity, and works seamlessly with the Subwoofer Output to create a powerful and articulate 2.1 system
  • 【Audiophile-Grade Features & Flexibility】Designed for enthusiasts. Includes BYPASS mode for use with an external preamp, +3dB gain switch for source matching, XLR/RCA input toggle, and LME49720 op-amps,can swappable op-amps design, The 12V trigger ensures seamless integration into automated systems
  • 【Premium Build & Components】Built on a 4-layer gold-sunk PCB for superior signal integrity. Loaded with high-end components including German WIMA capacitors and Japanese Rubycon capacitors, guaranteeing both stellar sound quality and long-term reliability
  • 【Perfect Pairing with T20】Part of the AIYIMA high-performance ecosystem. effortlessly connects with the AIYIMA T20 Tube Preamp via the 12V trigger for a one-touch, fully balanced, high-fidelity system that combines tube warmth with solid-state power
  • 【Excellent Cooling System】The internal air convection design ensures long-lasting and stable high-power operation
  • 【Please Note】 10th Anniversary Edition A20, now available in limited quantities; And only the standard version of the A20 will be released going forward.

Product description

Power amplifier chip: TPA3255 OP amp chip: LME49720*2 (plug-in), NE5532*7 (patch) 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 SINAD: 95dB Signal-to-noise ratio (SNR): ≥116dB Dynamic range (Dynamic Range): 110dB Distortion (THD+N): 0.002% Speaker impedance: 4-8Ω Frequency response (Frequency response): 20Hz-20kHz (±0.4dB) Output power: 300W*2 (4Ω) Other functions: BYPASS volume pass-through/RCA gain (3dB)/HPF high-pass filtering (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*77mm Product net weight: 1115g
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