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Kenwood KAC-M1814 4-Channel Micro Amplifier

This is the Kenwood KAC-M1814 4 Channel micro sized amplifier, which is fully weatherproof (using a conformal coated internal board to resist water/moisture).


Amplifier Type | Number of Channels:
4 Channel
RMS Power Output Per Channel 4 Ohms :
45 Watts x 4 
RMS Power Output Per Channel 2 Ohms:
45 Watts x 4 (same as 4 ohm) 
RMS Power Output Bridged:
90 watts RMS x 2 bridged at 4 ohms
Stable To | Impedance:
4 Ohms 
Built-in Line Output Converter:
Built-in DSP (Digital Signal Processing):
No | Not Equipped
Remote Level Control (Bass Knob):
Signal Sensing Remote Turn-On Trigger:
Yes Signal Sensing Turn-on
Crossover Built-in:
Yes | Variable High & Low Pass Filter
Low Pass Filter 50Hz-200Hz, -12dB/oct (A/B)
High Pass Filter 50Hz-200Hz, -12dB/oct (A/B)
5-11/16"W x 1-3/4"H x 3-7/8"D
1 pound


Power your speakers on land or sea

Kenwood's super-compact KAC-M1814 will add new clarity and impact to the basic sound system of almost any kind of vehicle on land or water, and it'll fit in a lot of places when space is tight. This marine-rated 4-channel amp will pump up your audio system with 45 watts RMS per channel — that's more than twice the power of most car stereos or marine receivers. The amp uses plastic covers to protect its connections and features a conformal-coated circuit board that keeps out moisture and salt, so the party won't stop just because of a little wetness.

Works in almost any system

The KAC-M1814 will accept a signal from just about any source, whether you're using RCA cables from an aftermarket receiver or speaker wires from a factory radio. When you use the speaker-level inputs, the amplifier will sense the signal and turn itself on, so you won't need to run a separate remote turn-on lead to the receiver or fuse box. Kenwood goes to great lengths to ensure good sound quality, putting the pre-amp and output power amp stages on separate circuit boards for better, cleaner performance.

Product highlights:

  • compact 4-channel amplifier for car, motorcycle, and boat
    • 45 watts RMS x 4 at 2 to 4 ohms
    • 90 watts RMS x 2 bridged at 4 ohms
  • Class D amp technology
  • variable high- and low-pass filters (50-200 Hz, 12 dB/octave)
  • conformal-coated circuit board — suitable for marine applications
More Info:
  • pre-amp and speaker-level inputs
    • speaker wire to RCA adapter required for speaker-level input
  • signal-sensing turn-on on speaker-level inputs eliminate need for a separate remote lead
  • fuse rating: 15A x 1
  • dimensions: 5-11/16"W x 1-3/4"H x 3-7/8"D
  • warranty: 1 year