Audiotek AT-PS4 13.8V 4A DC Regulated Power Supply

The Audiotek AT-PS4 is a compact DC regulated power supply designed to provide 13.8V DC from a 110V AC household source. It is rated for a 2A to 4A output range and is intended for compatible 12V-class electronics that need a stable external power source. This makes it useful for bench testing, home use, and other stationary applications where vehicle-style DC power is needed.

Rather than processing or amplifying an audio signal, the AT-PS4 supplies operating power to compatible equipment. It can support modest-current electronics such as compatible CB radios, scanners, and similar 13.8V DC devices. The connected device must have power requirements within the supply's voltage and current capabilities.

The front panel identifies the unit as a DC regulated power supply with short-circuit protection. A red power-status indicator and a front-mounted rocker switch provide straightforward operation. Clearly marked red positive and black negative output terminals help identify the DC connection polarity during setup.

A large external rear heatsink and multiple ventilation openings support heat dissipation during operation. The compact black enclosure is sized for desktop, workbench, or equipment-shelf placement. Its approximately 3.6-pound listed weight gives it a substantial stationary form factor without requiring a large installation footprint.

The AT-PS4 fits best in a low-current 13.8V DC setup, including a home station or installer work area. Connect it to a compatible device using appropriately terminated DC leads, observing polarity before switching the unit on. For equipment with current demand above 4A, select a power supply with a higher confirmed current rating.

Key Features

• 13.8V DC Output: Supplies vehicle-style DC operating voltage for compatible equipment.
• 2A–4A Output Range: Suits modest-current 13.8V DC applications.
• Short-Circuit Protection: Front-panel labeling identifies short-circuit protection.
• Binding-Post Outputs: Red and black terminals provide polarity-marked DC connections.
• Rear Heatsink: External finned heatsink supports thermal dissipation.
• Power Status Light: Red front-panel indicator shows when the unit is on.

Design & Installation

The AT-PS4 uses a black, vented enclosure with ventilation slots on the top and sides, plus a prominent rear finned heatsink. Its front panel combines the power switch, status indicator, output terminals, and printed operating labels in one accessible layout. A fuse holder is located near the AC input side.

Place the unit on a stable, dry surface with clear space around its vents and rear heatsink. Connect the positive lead to the red terminal and the negative lead to the black terminal, then verify that the connected device is designed for 13.8V DC and does not exceed the supply's 4A maximum output. Use the 110V AC input only as labeled, and follow the product warning to keep the power supply away from water.