$239.99 $169.99

AIYIMA's latest TPA3255 power amplifier has PFFB function and is equipped with 48v5a GAN power supply. 

Chipset: TPA3255+NE5532
Replaceable operational amplifier chips: RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612, MUSES01/02/03, etc.
Signal-to-noise ratio:≥≥116 dB
Frequency response: 20Hz-20KHz (±1DB)
XLR input sensitivity: 3.8Vrms (19dB)
RCA input sensitivity: 1.9Vrms (25 DB)/1.1Vrms (28.5 DB)
Speaker impedance: 4-8Ω
Stereo maximum output power: 2x300 W (@4Ω) 48V10A
Input mode: RCA+XLR
Trigger: 12v Tigger input
Sub Out: 20Hz~150Hz/600Hz(-3dB) (adjustable output cutoff frequency)
Supported equipment: decoders, preamplifiers, computers, CDs, mobile phones, MP3, etc.
Output mode: 2.0 passive speaker+Sub
Working power supply (DC): 36-48V
Packaging size (length*width*height): 146mm*79mm*90mm

A70 front panelA70 rear panel

SINADSNRAmplifier output frequency response
Amplifier Frequency ResponseBass output frequency responseBass output frequency responseBass output level scanBass output level

Amplifier output distortion scan – 4R/36V/48V

THD+NAmplifier output distortion scan – 8R/36V/48VAmplifier output distortion scan – 8R36V48Vcable connect

All items in store may take 2 to 5 business days to process.  Please add processing time to your shipping estimate below.

Here is an estimate of the shipping times.  Due to factors that often affect international shipments, such as holidays, customs, and weather delays, we can only offer an estimate of shipping times. 


Estimated Shipping Time

United States

10-30 business days

Canada, Europe

15-40 business days

Australia, New Zealand

15-45 business days

Mexico, Central America, South America

20-60 business days 

Middle East (UAE, Saudi Arabia)

20-40 business days


IMPORTANT: We are not responsible if a package is undeliverable because of missing, incomplete, or incorrect destination information. Please enter the correct shipping details when checking out. If you realize you have made an error, simply e-mail us at as soon as possible. However there is a 72-hour wait list for email, therefore, if your order has left our warehouse within 72 hours, it is out of our control.
Aiyima is not responsible for destination country tax and/or any duty charge that may incur. Customers will be held accountable for any restrictions, duties, taxes, and any other fees collected from the destination country.
Aiyima will not be responsible for any Duties, Taxes, or Customs fees under any circumstances.
If the order arrives in your country and...
• The customer refuses to accept the package
• The number of attempts is made in the country of destination to deliver the package.
Aiyima reserves the right to abandon the package(s) and will not be responsible for any refund.

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