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KAC-M1814
  • KAC-M1814

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KAC-M1814

Compact 4-Channel Digital Amplifier

The Multi-Application KAC-M1814 Compact 4 channel Class-D amplifier with 400 peak power supports louder volume for Car, Marine and Motorsports users with low-noise. Plastic covered connector helps to keep out water and dust and the Conformal Coating provides vibration resistance and helps prevent the PCB from rusting. RCA Line-In terminal or Speaker Level Input, with Signal Sensing Turn-on, to connect any type of receiver. A.ch and/or B.ch Filter Frequency Control and Filter Switch to apply HPF / OFF / LPF. Bridgeable Connection. Pre-amp and Power-amp sections are separated to reduce radiation noise.

  • Class D Amplifier
  • Full Range Digital Amplifier
  • CEA-2006 Compliant
  • Low-pass Filter
  • High-pass Fliter
  • Speaker level Input
  • Die-Cast Aluminium Heat Sink

Multi-Application

Multi application Amplifier

Compact design with controlable interface to adjust the sound from a receiver.

① Filter Frequency Control (A.ch/B.ch)
② Filter Switch to apply HPF / OFF / LPF (A.ch/B.ch).
③ Line In terminal
④ Input Sensitivity Control (A.ch/B.ch)

Conformal Coating

Conformal coating is a special film that protects circuit boards, components, and other electronic devices from adverse environmental conditions.
It provides increased dielectric resistance, operational integrity, and protection from corrosive atmospheres, humidity, and airborne contamination such as salt-spray, dirt and dust.


Key Features

4 channel digital (Class D) amplifier
Maximum output power 400W
4 x 45W @ 4ohm (CEA-2006 standard)
RCA / Speaker level input
Signal sensing turn-on/off
Variable Low- & High-Pass filter
Compact size (145 x 45 x 99mm)
Conformal coating protection

Amplifier Features

Class D AmplifierYes
Full Range Digital AmplifierYes
Load Capability4Ω Stable
Maximum power output400W
Rated power output (4Ω)45W x 4 (4Ω)
CEA-2006 CompliantYes
Low-pass FilterYes
High-pass FliterYes
Switched Mode Power supplyYes, Power MOS-FET
Signal Sensing Turn-onYes
Line in4 RCA / Speaker level
Speaker level InputYes
Die-Cast Aluminium Heat SinkYes
DC cable SuppliedYes
Conformal CoatingYes

Amplifier-Specifications

Rated power output (CEA-2006)45Watts RMS x 4 at 4 ohms and 1% THD
Low-pass Filter50~200Hz (-12dB/oct)
High-pass Fliter50~200Hz (12dB/oct)
Input Impedance10kΩ
Signal to Noise Ratio98dB
Signal to noise ratio (CEA-2006)82dBa (Reference: 1 Watt into 4 Ohms)
Frequency response (+0dB, -3dB)20Hz ~ 20Hz
Operating voltage14.4V (11V ~ 16V allowable)
Maximum current consumption15A
Dimensions (WxHxD)145 x 45 x 99(mm),
Weight0.7kg
Unit weight in individual package0.99 kg.