Alpine KTA-30MW Compact all-Weather Subwoofer Amplifier

Brand: Alpine
Model Number: KTA-30MW
UPC: 793276242099
Model Number: KTA-30MW
UPC: 793276242099

Alpine KTA-30MW Compact all-Weather Subwoofer Amplifier

  • Compact mono subwoofer amplifier
  • 200 watts RMS x 1 at 4 ohms (300 watts RMS x 1 at 2 ohms)
  • Dynamic Peak Power (DPP) circuit adds a burst of power
  • Class D amp technology
Special Order





Payments as low as


Special Order

Availability: In stock

Product Description

Features & Specifications




Alpine KTA-30MW Compact all-Weather Subwoofer Amplifier

Alpine KTA-30MW is a super-compact, weather-resistant mono power pack to drive a subwoofer (or two) in an open-air vehicle, such as ATV, side-by-side, motorcycle, or boats This Class D amplifier can be used with factory head units or aftermarket sound systems. Alpine KTA-30MW comes with a single harness with all of the power, input, and output connections, terminated with a water-resistant 26-pin connector.

Class D

Alpine KTA-30MW has a high-efficiency Class D digital circuit design. With Adaptive Feedback global modulation topology, the amp provides up to 100% more dynamic power when the music demands it.

Weather Resistant

The power pack is ideal for side-by-sides, boats, motorcycles, and other vehicles that may be exposed to the elements. The KTA-30MW has an IP66 weather-resistance rating for protection against moisture and dust.


The weather-resistant OEM-grade Tyco 26-pin connector is for all needed amp connections, including the following:

Power/Ground: The connector has 12″ 10-gauge power (red) and ground (black) pigtails. The red power wire has a large, in-line noise filter. There is no internal or in-line fuse, so you’ll need to add a 30A fuse near the battery’s positive (+) terminal.

Remote Turn-on: There are two remote leads on the connector. Connect the blue/white Remote Turn-on lead to the +12V remote turn-on or power antenna lead from the head unit. The solid blue Remote Out lead can be used to turn on additional amplifiers. If your head unit does not have an amplifier turn-on lead, see Alternate Turn-on Options (below).

Inputs: The amplifier will accept either line-level or speaker-level inputs. The amp’s input wires are color-coded twisted pairs with female RCA jacks. If your source unit has RCA outputs, you can simply connect RCA cables to the amp. If the source unit does not have RCA outputs, you can cut off the amp’s RCA jacks and splice the source unit’s speaker wires to the twisted pair inputs. (Color codes: Left: white, Right: gray)

Subwoofer Outputs: The connector has speaker output wires for two subwoofers. There are two brown wires (+) and two brown/black wires (-) for connecting one or two subwoofers. The amplifier will accept a 4″ or 2″ load.

Remote Bass Control: An RJ-25 phone-type connector is provided for an optional remote bass control. The Alpine RUX-KNOB.2 can be added, so you can control the output of the amplifier from the front of the vehicle. The connector has a waterproof, screw-on cap to protect it from the elements when not in use.

Brand Alpine   Model Alpine KTA-30MW
Product: Alpine KTA-30MW Compact all-Weather Subwoofer Amplifier

– Compact mono subwoofer amplifier
– 200 watts RMS x 1 at 4 ohms (300 watts RMS x 1 at 2 ohms)
– Class D amp technology
– Dynamic Peak Power (DPP) circuit adds a burst of power when needed
– Frequency response: 20-400 Hz
– Variable low-pass filter: 50-400 Hz at 24 dB/octave
– Variable bass boost: 0-12 dB at 50 Hz

Mono amplifier
– 14" Power/signal harness (26-pin connector on one end and bare – wires + RCAs on other end)
– 4 Self-tapping screws (Length 3/4")
– Connection sheet
– Fuse: 25A

Dimensions: 9-3/16"W x 1-5/8"H x 3-13/16"D

Mobile Amplifier Class

Mobile Amplifier Fuse Rating

Mobile Amplifier RMS



Estimated Shipping

When you add an item to your cart the Estimated Shipping* cost will be shown.  This estimated shipping* cost is accurate to most major city locations across Canada.  If the shipping cost is higher than the estimated shipping* then GibbysESM will contact you for approval before we process your order.

To learn more click Shipping Terms & Conditions

Alpine Canada 1 Year Limited Warranty