AIYIMA A70 MONO Mono/Subwoofer Amplifier

The Aiyima A70 Mono is a Class D amplifier based on a chipset comprising a TPA3255 amplifier chip and a NE5532 OPA. It is capable of delivering power up to 300W @ 4 ohm. Featuring PFFB circuitry for low distortion and noise reduction, the Aiyima A70 MONO amplifier's signal output is greatly enhanced.

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Reference : 19856
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119,00 €tax incl.

99,17 € tax excl.
Including 0,05 € for green tax

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Shipping date: 10-12-2024.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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Facturation France
SAV France

2 Years warranty

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Aiyima A70 Mono Mono/Subwoofer Class D Amplifier TPA3255+NE5532 1x300W @ 4 ohm

AIYIMA A70 MONO picture

The Aiyima A70 Mono is a class D amplifier based on a circuit comprising a TPA3255 amplifier chip and a NE5532 OPA. It is capable of delivering power up to 300W into 4 ohm. Featuring PFFB circuitry for low distortion and noise reduction, the Aiyima A70 Mono amplifier's signal output is greatly enhanced. In terms of performance, it is capable of maintaining a THD+N of 0.0001% and offers an SNR ≥ 116dB. Moreover, Aiyima has chosen to offer it audiophile components such as Rubycon 63V 3300µF, Nichicon and Wima capacitors.

Regarding the A70 Mono's controls, there are two large potentiometers on the front panel, a switch for selecting its “sub” or “full frequencies” mode on the bottom panel and a +6dB RCA gain control on the rear panel. Its connectors include a mono RCA input and a balanced XLR/Jack 6.35mm combo input, while its output features a speaker terminal and a subwoofer output for an active subwoofer. The speaker terminal output can also feed a passive subwoofer or a passive loudspeaker. The set is completed by a 3.5mm jack 12V trigger input and a small potentiometer for subwoofer crossover frequency adjustment (40-200kHz).

Aiyima A70 Mono: a powerful amplifier

Benefiting from a TPA3255+NE5532 chips combo with PFFB circuitry, the Aiyima A70 Mono delivers up to 300W into 4 ohm. All this while maintaining a THD+N of 0.0001% and an SNR of ≥ 116dB. Furthermore, as the NE5532 OPA is DIP8-mounted, it can easily be replaced by different models. Here is a non-exhaustive list of compatible OPAs: RT3609SM, OPA2604, OPA2134, LM4562, JRC5532, OP275GSZ, OPA1612, etc.

Photo of TPA3255 chip

Aiyima A70 Mono: audiophile components

Rubycon 63V3300uf filter capacitors

Rubycon 63V 3300µF filter capacitors

Large heat sink

Large heat sink

WIMA capacitors

WIMA capacitors

Nichicon audio capacitors

Nichicon audio capacitors

Aiyima A70 Mono: two operating modes

A selector switch allows you to choose the operating mode of the A70 MONO, depending on whether you wish to supply a passive subwoofer or a passive loudspeaker.

AIYIMA A70 MONO operating modes

Aiyima A70 Mono: high-power cooling system

A large heat sink on the underside of the Aiyima A70 MONO, coupled with side vents, enables it to handle high power levels over long periods of time without overheating. It also provides effective protection for its internal components.

AIYIMA A70 MONO cooling system

AIYIMA A70 MONO overview

AIYIMA
1Power LED indicator
2Power switch
3Passive subwoofer cutoff frequency setting
4Volume control
5RCA/XLR source selector
6Input LED indicator
7Balanced XLR/Jack 6.35mm combo input & RCA input
8RCA gain +6dB
9Active subwoofer LFE output
10Active subwoofer cutoff frequency setting
1112V trigger input
12Speaker terminal output
1324-48V DC power supply via DC jack



Aiyima A70 Mono review by AudioScienceReview (Amir)

" AIYIMA A70 MONO amplifier brings highly competent performance to the table with performance that beats majority of amplifiers I have tested. Yet it costs so little. Having balanced input, selectable gain for RCA and trigger are much appreciated... "

Technical characteristics

Specifications
Product typeMono amplifier
Amplifier typeClass D
Amplkification chipTPA3255
OPANE5532
Inputs1x Mono RCA input
1x Balanced mono XLR/Jack 6.35 combo input
Outputs1x Speaker terminal block
1x Subwoofer output
Output power300W @ 4Ω (48V5A)
SNR≥ 116 dB
Distorsion0.001%
Frequency response20Hz-20KHz (±0.5dB)
Input sensitivityRCA : Low gain 2Vrms (26dB) / high gain 1Vrms (32dB)
XLR : 4Vrms (19dB)
Output impedance2-8Ω
Subwoofer output sensitivity2V
Active subwoofer output cutoff frequency setting40-200Hz
General
Alimentation24-48V DC via jack DC (48V 5A power supply included)
Dimensions126.5 x 154.5 x 42mm
ColorBlack
Weight900g
Package1x Aiyima A70 Mono amplifier
1x 48V 5A power supply
AIYIMA A70 MONO power chart
 
Data sheet
InputJack 6.35mm
InputRCA
InputXLR
OutputSpeaker terminal
OutputSubwoofer
ColorBlack
Channel1 (Mono)
ClassClass D / T
Amplifier chipTPA3255
Power (W)300.0
Remote ControlNo
 
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AIYIMA A70 MONO Mono/Subwoofer Class D Amplifier TPA3255+NE5532 1x300W 4 Ohm
The Aiyima A70 Mono is a Class D amplifier based on a chipset comprising a TPA3255 amplifier chip and a NE5532 OPA. It is capable of delivering...

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