Audiotek AT-1600M 1-Channel Monoblock Car Amplifier

The Audiotek AT-1600M is a 1-channel monoblock car amplifier intended for adding a dedicated bass channel to a vehicle audio system. It is designed to drive compatible subwoofer setups and provides a listed 2-ohm output rating of 1600 watts x 1. Its single-channel layout keeps the system focused on low-frequency reinforcement rather than full-range speaker amplification.

This amplifier is suited to installers and listeners building an entry-level or replacement subwoofer system that needs adjustable bass output. A 2-ohm stable design supports compatible low-impedance subwoofer wiring configurations. The included remote subwoofer control allows convenient adjustment of bass level from the listening position.

The AT-1600M uses a Class A-B amplifier design with a MOSFET pulse-width-modulated power supply. It includes a variable low-pass filter specified from 35 Hz to 160 Hz, helping limit the amplified signal to bass frequencies appropriate for a subwoofer. Bass boost adjustment is specified from 0 to +18 dB for further system tuning.

Connection options include nickel-plated RCA low-level inputs and speaker-level inputs, allowing integration with a range of aftermarket and factory audio sources. Variable input gain helps match the amplifier to the source unit's output level. A remote turn-on/turn-off circuit supports operation with a compatible switched remote lead.

The AT-1600M can be used as the bass amplifier in a system with a separate head unit, signal source, subwoofer enclosure, power wiring, ground wiring, and appropriate fusing. Its protection circuits and LED status indicators help monitor operating condition during use. Confirm the final speaker impedance and electrical installation requirements before connecting the amplifier.

Key Features

• Monoblock Configuration: Provides one dedicated channel for a compatible subwoofer system.
• 2-Ohm Stable Operation: Supports compatible subwoofer loads down to 2 ohms.
• Variable Low-Pass Filter: Adjusts bass-frequency filtering from 35 Hz to 160 Hz.
• Bass Boost Control: Offers adjustable bass boost from 0 to +18 dB.
• Multiple Input Types: Includes RCA low-level and speaker-level input connections.
• Protection Circuitry: Includes thermal and speaker-short protection for added system safeguarding.

Design & Installation

The AT-1600M uses a heavy-duty aluminum-alloy heat sink to help dissipate heat during operation. Its connection hardware includes nickel-plated RCA and speaker-level inputs, while LED power and protection indicators provide visible operating-status feedback. A soft turn-on circuit and MOSFET PWM power supply are also specified.

Mount the amplifier on a secure, ventilated surface away from moisture and direct heat. Connect it only to a properly fused vehicle electrical system, use the remote turn-on lead as applicable, and wire subwoofers so the final load is not below its 2-ohm stable rating. Set gain, low-pass frequency, and bass boost conservatively, then tune them with the rest of the audio system.