Audio360 AD1600.4 4-Channel Car Audio Amplifier

The Audio360 AD1600.4 is a four-channel car audio amplifier designed to add externally amplified power to a vehicle speaker system. It can drive front and rear speakers in a conventional four-channel layout or support two bridged output channels for higher-power applications. This makes it suitable for factory-system upgrades and custom audio installations that need flexible channel configuration.

At 4 ohms, the amplifier is rated for 60 watts RMS per channel, while its 2-ohm stereo rating is 90 watts RMS per channel. When bridged into 4-ohm loads, it is rated for 180 watts RMS across two channels. These ratings allow the amplifier to be matched with a range of full-range speakers or appropriately configured bridged speaker loads.

The AD1600.4 uses a Class AB amplifier design intended for full-range audio reproduction. Its listed 90 dB signal-to-noise ratio supports a low-noise signal path when the system is properly installed and gain-matched. Separate front and rear gain controls allow the input level to be adjusted for the source unit and system layout.

For system tuning, each channel pair provides selectable high-pass, low-pass, or full-range crossover operation. This lets installers high-pass smaller door speakers, run full-range speakers without filtering, or use low-pass filtering in a bridged setup where appropriate. RCA inputs for front and rear channels and RCA pass-through outputs support integration with compatible head units and additional amplifiers.

The compact chassis measures approximately 11.81 x 8.98 x 2.01 inches, helping it fit in locations with limited mounting space. Dual 25A onboard fuses and power/protection status indicators support everyday system monitoring. The amplifier is a practical option for users building a four-speaker system or combining amplified speakers with a two-channel bridged configuration.

Key Features

• Four-Channel Output: Powers up to four speakers from one amplifier.
• Bridgeable Configuration: Combines channel pairs for two higher-power 4-ohm outputs.
• Class AB Circuitry: Provides full-range amplification for speaker-system upgrades.
• Selectable Crossovers: Offers HPF, LPF, and full-range modes per channel pair.
• RCA Signal Connections: Includes separate front/rear inputs and pass-through outputs.
• Dual 25A Fuses: Provides onboard overcurrent protection for the amplifier.

Design & Installation

The AD1600.4 has a compact aluminum-alloy housing with power, ground, remote, and speaker terminals grouped on one end of the chassis. Its input/control side includes RCA connections, front and rear gain controls, crossover-mode switches, crossover-frequency controls, and power/protection LEDs. The listed mounting type is freestanding, and mounting hardware is included according to the available product manual.

Install the amplifier in a dry, ventilated location away from heat, moisture, and direct sunlight. Use appropriately sized power, ground, remote, RCA, and speaker wiring; available installation guidance generally recommends 8-gauge power and ground wire, with an externally mounted 50A inline fuse near the battery. Connect 4-ohm speakers for bridged operation, set gain from minimum during initial setup, and use the crossover settings to match the speakers connected to each channel pair.