Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm

Stereo Class D amplifier module MA12070 2x80W 4 Ohm
This amplifier module is based on an Infineon MA1270 Class D amplifier chip. It uses two power half-bridges with 4 MOSFETs where each transistor is driven by its own separate PWM signal. This highly efficient circuit offers remarkable performance while maintaining a very compact form-factor.

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Reference : 14732
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Shipping date: 25-01-2022.

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Module MA12070

Balanced Stereo Amplifier 1.0 / 2.0 / 2.1 / 4.0 MA12070 160W @ 4 ohms



Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm


This amplifier module is based on an Infineon MA1270 Class D amplifier chip. It uses two power half-bridges with 4 MOSFETs where each transistor is driven by its own separate PWM signal. This highly efficient circuit offers remarkable performance while maintaining a very compact form-factor.

Capable of developing up to 2x80W at 4 Ohm in its stereo 2.0 mode, it is an ideal solution for your integrated amplifier / speakers & active monitors projects. Its multiple switching power supply circuit (3rd and 5th degree modulation) make it a very low energy consumption and formidable efficiency amplifier solution.

Very musical, its amplification circuit offers a signal / noise ratio superior to 110dB with an extremely low background noise (7.45µV), which makes it a solution of choice for your on-board High Fidelity projects.

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

From 1 to 4 channels

Extremely versatile, the module is able to work in 1.0 mode with a power of 160W at 4 ohm, in 2.0 mode (2x80W), in 2.1 mode (2x 40W + 80W) as well as in 4.0 mode (4x 40W).

Switching from one mode to another is done using a DIN type selector located directly on the PCB.

Heatsink & Spacers

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm


The MA12070 module is read with its (large) radiator already mounted and fixed. The latter ensures excellent heat dissipation in addition to the integrated protections against overheating. This ensures ideal operating conditions for the Infineon chip

Likewise, 4 spacers and 4 screws are supplied & already mounted on the module. All there is to do to obtain a functional amplifier is to power the module and plug in your other modules / devices.

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

The connector below is reserved for factory settings. Do not use it.

Specifications
TypeAmplifier module
Amplifier chip1x MA12070
Amplification technologyClass D
Channels1.0 / 2.0 / 2.1 / 4.0
Power @26V PVDD, RL = 4Ω, THD+N = 10%1 x 160W
2 x 80W
2 x 40W + 1 x 80W
4 x 40W
Idle consumption≤160mW
SNR≥110dB
Noise (A-weighted)7. 45µV
Dimensions60 x 80 x 33 mm
Spacer50 x 70 mm
Power Supply24 - 26VDC

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

Module amplificateur 1.0 / 2.0 / 2.1 / 4.0 Class D MA12070 160W 4 Ohm

 
Data sheet
InputScrew terminals
OutputScrew terminals
Channel2 (Stereo)
Channel2.1
Channel1 (Mono)
Channel4
ClassClass D / T
Amplifier chipInfineon MA12070
Power (W)160.0
 
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Average votes
4.0 / 5
2 reviews
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Note :
 3/5
Date :
Manque de sensibilité
Un très bon son mais hélas pas suffisamment sensible pour exploiter la puissance avec le seul réglage de volume d'un téléphone mobile, livré sans notice et sans le connecteur d'entée ligne
 (0)
 (0)
This review has been posted for Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm
Note :
 5/5
Date :
Modules MA12070 Infineon en double Mono
J'ai monté une configuration double Mono avec deux modules et deux alimentations SMPS 24V/150W. Je suis assez épaté du résultat... c'est proche d'un TPA3251 (je parle d'une version haut de gamme pas made in China).

La version que l'on voit sur les photos est la revision 1.2. J'ai reçu la nouvelle révision 1.3 avec un connecteur "ground" en plus.
Prevoyez des sections de cables fines car les connecteurs de type "push" ont un petit diamètre.

A l'écoute :

+ + c'est dynamique, musical avec une bonne source obligatoire
++le THD donné par Infineon est très intéressant,
++circuit Anti pop, pas de souffle, c'est propre

-- manque de patate. pas aussi puissant qu'un TPA3251/55 de bonne facture (avec PFFB). On droit approcher les 2X90W sous 8ohms en double Mono. Mais suffisant pour une pièce de 40m2 à volume sympa.
 (0)
 (0)
This review has been posted for Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm
 
Balanced Class D 1.0 / 2.0 / 2.1 / 4.0 Amplifier Module MA12070 160W 4 Ohm
This amplifier module is based on an Infineon MA1270 Class D amplifier chip. It uses two power half-bridges with 4 MOSFETs where each transistor is...

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