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Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
AIYIMA's A70 is a 2.1-channel Class D amplifier featuring quality components. In fact, it incorporates a TI TPA3255 amplifier chip combined with two NE5532 OPAs for an output power of up to 2x 185W at 4 ohms. The AIYIMA A70 features an original vertical form factor and a complete connectivity interface located on the rear panel: XLR/TRS 6.35mm balanced input, RCA input, active subwoofer output and speaker terminal output. The interface is completed by a frequency cutoff potentiometer for the subwoofer output and a 12V trigger input on a 3.5mm jack. The front panel features an impressive potentiometer for precise volume control.
Thanks to its TI TPA3255 amplifier chip, the AIYIMA A70 amplifier is able to deliver up to 2x 185W into 4 ohm which is a considerable amount of power. The TI TPA3255 amplifier chip features an integrated feedback design with error correction (PurePath™ UltraHD) that allows for very low levels of distortion across the entire audio band and superior overall sound quality.
Two NE5532 OPAs add color to the sound at the output of the AYIMA A70. These low-distortion, low-noise operational amplifiers are DIP-mounted for easy replacement according to your preferences with many compatible OPAs: RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612, MUSES01/02/03, etc.
In terms of outputs, the AIYIMA A70 features a subwoofer output on an RCA connector for an active subwoofer with a 150Hz-600Hz frequency cutoff potentiometer. This makes it easy to set up a 2.1-channel home theater system and enjoy immersive bass.
| 1 | Balanced stereo XLR / TRS 6.35mm jack input |
| 2 | Subwoofer cut-off frequency setting |
| 3 | 12V Trigger |
| 4 | RCA stereo input |
| 5 | RCA gain +3.0dB |
| 6 | Subwoofer output |
| 7 | 36V-48V DC power supply |
| 8 | Speaker terminals |
Technical characteristics
| Specifications | |
|---|---|
| Product type | Class D amplifiers |
| Channels | 2.1 channel |
| Amplification chip | TI TPA3255 |
| OPA | NE5532 |
| Inputs | 1x XLR stereo / TRS 6.35mm balanced jack 1x RCA stereo |
| Outputs | Speaker terminals 1x Active subwoofer output on RCA connector |
| Other connectors | 12V trigger on 3.5mm jack |
| Output power | 2x 185W @ 4 ohm (THD+N=1%) 2x 105W @ 8 ohm (THD+N=1%) |
| THD | 0.0015% (@1W) |
| SNR | ≥ 116dB |
| Frequency response | 20Hz-20KHz (±1DB) |
| XLR input sensitivity | 3.8Vrms (19dB) |
| RCA input sensitivity | 1.9Vrms (25 DB) / 1.1Vrms (28.5 DB) |
| Termination impedance | 4-8Ω |
| Subwoofer output | 20Hz~150Hz/600Hz (-3dB), adjustable cut-off frequency |
| General | |
|---|---|
| Power supply | 32V-48V DC |
| Dimensions | 146 x 79 x 90mm |
| Color | Black |
| Package | 1x AIYIMA A70 amplifier 1x 48V 10A power adapter |
| Input | Jack 6.35mm |
| Input | RCA |
| Input | XLR |
| Output | Speaker terminal |
| Output | Subwoofer |
| Color | Black |
| Channel | 2.1 |
| Class | Class D / T |
| Amplifier chip | TPA3255 |
| Power (W) | 185.0 |
| Remote Control | No |
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