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115 Watts RMS 5-CH 1 Ohm Stable Class D Car Audio Amplifier GT5X Massive Audio

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Key item features

All-in-One 5-Channel Powerhouse: Drive your entire system with one amp—115W x 4 for mids/highs + 300W x 1 for subs at 2 Ohm, or up to 510W RMS at 1 Ohm for deep, controlled bass.
Next-Gen Class D Design: Ultra-efficient digital circuitry with Massive Audio’s exclusive "Massive Core" power supply delivers high-speed, high-fidelity performance in a compact footprint.
1 Ohm Stable Subwoofer Channel: Push powerful low-end without fear—this amp is stable down to 1 Ohm on the sub channel, ideal for heavy-hitting daily drivers and bass builds.
Built for Clean, Reliable Sound: Features built-in noise filtering, advanced 5-way protection, and high-grade MOSFET switching for distortion-free audio and long-term durability.
Compact and Install-Ready: Small enough to fit almost anywhere (7” x 1.65” x 7.9”) with auto turn-on, gain remote, and 12V remote output for seamless integration into any custom car audio setup.

Specs

Brand
Massive Audio
Rms power rating
115 W
Channels
5
Impedance
1 ohm
Features
Compact
Rec. use
Car Audio

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Product details

115 Watts RMS 5-CH 1 Ohm Stable Class D Car Audio Amplifier GT5X Massive Audio

This listing includes:

(1) Massive Audio GT Series 5-Channel Amplifier
(1) Mounting Hardware Kit
(1) User Manual

Step into the next generation of high-performance sound with the Massive Audio GT5X 5-Channel Amplifier. Engineered with the brand’s proprietary Massive Core Power Supply, this compact beast pushes clean, undistorted sound across five channels—handling everything from crisp highs to booming lows with ease.

Designed for serious audiophiles and pro installers alike, the GT5X packs premium features like 1-ohm stable operation, built-in noise reduction, and next-gen 5-way protection circuitry into a rugged and ultra-efficient build. Whether you're running full-range speakers or a demanding subwoofer, this amp delivers reliable power and headroom to drive your system without breaking a sweat.

Key Features:

Class D Digital Design: Efficient power delivery and reduced heat
Massive Core Technology: Oversized toroids and transformers for stable current
1 Ohm Stable Sub Channel: Ideal for demanding subwoofer setups
5-Channel Flexibility: Power your entire system with one amp
Built-in Noise Reduction: For clean, interference-free audio
Auto Turn-On via RCA: Convenient signal-sensing startup
MOSFET Switching: High-speed, high-grade switching components
Advanced 5-Way Protection: Keeps your system safe under all conditions
Clip LED Indicator: Prevents distortion and amp clipping
Gain Remote Included: On-the-fly control of subwoofer gain

Specifications:

RMS Power @ 2 Ohm: 120W x 4
RMS Power @ 4 Ohm: 75W x 4
RMS Bridged @ 4 Ohm: 230W x 2
Minimum Load: 2 Ohm
Frequency Response: 10Hz – 40kHz
Low Pass Frequency Range: 20Hz – 500Hz
Input Level: 310mV – 7V
Signal-to-Noise Ratio: 94dB
Channel Separation: 58dB
THD @ 4 Ohm: 0.06%
Bass Boost: N/A
Recommended Fuse: 80A
Input Terminal Size: 4 AWG
Gain Remote: Not Included

Specifications:

RMS Power (2 Ohm): 115W x 4 + 300W x 1
RMS Power (4 Ohm): 75W x 4 + 190W x 1
Subwoofer Output (1 Ohm): 510W RMS
Input Voltage Range: 320mV – 7V
Frequency Response: 10Hz – 200Hz (Sub) / 10Hz – 40kHz (Full Range)
Low Pass Filter Range: 80Hz – 200Hz
Channel Separation: 55dB
Total Harmonic Distortion (4 Ohm): 0.08%
Signal-to-Noise Ratio: 91dB
Bass Boost: -3dB to +12dB
Minimum Load: 1 Ohm (Mono), 2 Ohm (Multi-channel)
Recommended Power Input: 4 AWG

Dimensions:

Width: 7"
Height: 1.65"
Length: 7.9"

All-in-One 5-Channel Powerhouse: Drive your entire system with one amp—115W x 4 for mids/highs + 300W x 1 for subs at 2 Ohm, or up to 510W RMS at 1 Ohm for deep, controlled bass.
Next-Gen Class D Design: Ultra-efficient digital circuitry with Massive Audio’s exclusive "Massive Core" power supply delivers high-speed, high-fidelity performance in a compact footprint.
1 Ohm Stable Subwoofer Channel: Push powerful low-end without fear—this amp is stable down to 1 Ohm on the sub channel, ideal for heavy-hitting daily drivers and bass builds.
Built for Clean, Reliable Sound: Features built-in noise filtering, advanced 5-way protection, and high-grade MOSFET switching for distortion-free audio and long-term durability.
Compact and Install-Ready: Small enough to fit almost anywhere (7” x 1.65” x 7.9”) with auto turn-on, gain remote, and 12V remote output for seamless integration into any custom car audio setup.

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