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Green rectangular circuit board with silver connectors and black components, approximately 10 by 5.60 centimetres

Ruth's sister

Ruth's sister Microphone Amplifier Board AC12V 10x5.60cm

SKU CH-9GT7-PFAW1

A dual-power microphone amplifier board operating on AC 12 V with a PCB measuring 10 × 5.60 cm

  • Dual-power design runs on AC 12 V for stable microphone amplification
  • Compact 10 × 5.60 cm PCB fits tight project enclosures
  • Stereo input and output pads simplify left/right channel wiring
  • Dedicated MIC1 and MIC2 headers accept microphones directly
  • Requires external power amplifier board to drive speakers or headphones

Dual-Power Microphone Amplifier Board

This board provides a dual-power microphone pre-amplifier module for audio signal conditioning. It accepts left and right channel inputs plus two microphone connections. The PCB measures approximately 10 by 5.60 centimetres. It is intended for builders integrating custom audio front-ends into larger amplifier systems.

Sustained Operation With AC 12V Supply

The module is designed for continuous use with a dual AC 12V power supply as noted in the instructions. It delivers amplified output signals designated for connection to a separate power amplifier board rather than driving speakers directly. This architecture isolates the pre-amplification stage from high-current output demands during extended sessions.

Upgrade Path For Custom Audio Builds

This board replaces discrete op-amp or single-supply pre-amp circuits when a balanced dual-rail design is required. The jump is worthwhile for constructors who need independent left and right microphone gain stages on a compact 3.94 by 2.20 inch footprint. It does not suit projects requiring an integrated power output stage or battery-powered portability.

How it compares

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Price $13.99
Pricier than about 90% of the 1,208 comparable items (median $9.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Does the AC12V dual-power board generate noticeable heat when running continuously?

The board is a small PCB measuring about 10 by 5.60 cm with no active cooling; typical microphone preamp modules of this size run cool under normal use.

What external power supply must I already have to operate this amplifier board?

The board requires a dual 12 V AC power supply, as stated in the manufacturer notes.

Can I connect the GND, Rin, Lin, Rout and Lout pins directly to my existing power amplifier board?

Yes, those pins provide the left and right channel input and output signals for connection to a separate power amplifier board.

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