Mobile Electronics› Vehicle Audio and Components

Ocean Audio

720W 4-Channel Class D Amplifier

$69.99

SKU: OAE-90.4D

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Moderate — 2–4 hours

Overview

The Ocean Audio OAE-90.4D is a compact, full-range Class D 4-channel car amplifier rated for 720W maximum power. This unit features versatile 4/3/2 channel operation, including bridgeable outputs to drive a variety of speaker configurations.

The amplifier utilizes a PWM MOSFET power supply and offers both RCA and speaker-level inputs for broad installation compatibility. Integrated variable high-pass and low-pass filters (50-500Hz) allow for precise sound tuning, complemented by thermal and speaker-short protection circuitry.
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The Ocean Audio OAE-90.4D is a compact, full-range Class D 4-channel car amplifier engineered to provide efficient and reliable audio power for mobile sound systems. It supports 4/3/2 channel operation, allowing installers to power a full range of speakers or bridge channels for increased output. The unit is rated for 720W maximum power, with RMS performance of 4x60W at 4 ohms or 4x90W at 2 ohms, and bridged RMS power of 2x180W at 4 ohms. Designed with a PWM MOSFET power supply, this amplifier integrates comprehensive protection features including thermal management and speaker-short circuitry. Users can customize the audio output using variable high-pass and low-pass filters (50-500Hz) and an adjustable input gain (0.2-8V). Flexible input options include both RCA and speaker-level connections, facilitating integration into both aftermarket and factory-integrated audio setups. The OAE-90.4D also features a soft turn-on circuit to prevent power-on pops and includes LED indicators for power and protection status. The system supports auto-turn-on functionality via high-level inputs, simplifying the wiring process for many vehicle applications. It comes backed by a 1-year limited warranty from the manufacturer.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandOcean Audio
Part NumberOAE-90.4D
CategoryMobile Electronics
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