Skar Audio SA-125.4D 720 W Class D High Performance 4 Channel Car Amplifier

Name: Skar Audio SA-125.4D 720 W Class D High Performance 4 Channel Car Amplifier
Brand: Skar Audio
SKU: awhd-us-b0dqfdf88m
Price: 201.44 USD
Availability: InStock

Brand: Skar Audio

Condition: Used

$201⁴⁴

$254⁹⁹

-21% Save $53⁵⁵

Updated: 4 days ago

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Description

720 Watt 4-Channel Class D High Performance Amplifier

RMS Power at 2 Ohms: 180 Watts x 4 Channels | RMS Power at 4 Ohms: 125 Watts x 4 Channels

RMS Power @ 4Ω (Bridged): 285 Watts x 2 Channels | Operating Voltage: 8.5V - 16V

Crossover Controls: HPF / Full-Range / LPF | Adjust gain & crossover frequencies for Channels 1&2 and 3&4

Frequency Response: 10 Hz - 25 kHz | Power/Ground Input Size: 4 AWG

The Skar Audio SA-125.4D is a high-performance four-channel amplifier, designed to take your car audio system to the next level. Delivering a total of 720 watts RMS power, this Class D amplifier provides 125 watts x 4 channels at 4 ohms, 180 watts x 4 channels at 2 ohms, and an impressive 285 watts x 2 channels when bridged at 4 ohms. Its compact and efficient design makes it ideal for those seeking dynamic sound quality with minimal space requirements. With a broad frequency response range of 10Hz to 25kHz, this amplifier ensures accurate and clear audio reproduction across all frequencies. Adjustable high-pass and low-pass filters (50Hz to 250Hz) allow you to fine-tune your sound for optimal performance. The amplifier’s 70A fuse rating and 4 AWG power/ground input size highlight its durable construction and reliable safety features. The SA-125.4D includes user-friendly controls for gain and crossover adjustments, supporting HPF, LPF, and FULL modes to suit any audio setup. Additional features such as RCA preouts, high-level inputs, and auto remote turn-on functionality ensure seamless integration into any sound system. The amplifier’s LED status indicator provides clear operational feedback, with blue indicating normal operation and red signaling protection mode. Compact in size, this amplifier is designed for easy installation and includes a removable terminal design that streamlines both setup and maintenance. Whether you’re upgrading a stock system or building a custom high-performance setup, the SA-125.4D delivers the precision, power, and reliability you need for an exceptional audio experience.

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Product Details

SKU:: awhd-us-b0dqfdf88m
Model:: SA-125.4D
Country:: US
ASIN:: B0DQFDF88M
UPC:: 810028814707

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $54 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.