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Rockford Fosgate

Monoblock Class D Amplifier

$349.99 $299.99 Save $50.00

SKU: R750-1D

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Rockford Fosgate R750-1D is a monoblock Class D amplifier designed to deliver powerful bass to your vehicle's audio system. It boasts 750 watts RMS power output into a 1-ohm load.
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The Rockford Fosgate R750-1D is a monoblock Class D amplifier engineered to provide robust bass performance for your car audio system. This amplifier is specifically optimized for subwoofers, featuring an infrasonic filter to protect your system from ultra-low, inaudible bass notes. It delivers 250 watts RMS x 1 at 4 ohms, 500 watts RMS x 1 at 2 ohms, and a substantial 750 watts RMS x 1 at 1 ohm. It includes a variable low-pass filter (50Hz - 500Hz at 12dB/octave) and a variable Punch bass boost (0-18dB at 45Hz) for precise tuning. It also features RCA pass-thru outputs and accepts 4-gauge power and ground leads. The MOSFET power supply and cast aluminum heatsink contribute to its cool-running operation and durability. For added control, the R750-1D includes an onboard Punch EQ and is compatible with an optional wired remote knob (Punch Level Control) for fingertip adjustment of bass impact. Its frequency response is optimized for subwoofers, ranging from 20Hz to 250Hz. Installation requires 4-gauge power and ground wiring, which is recommended but not included. This model also does not have onboard fuses; an additional 60-amp in-line fuse is recommended when installing multiple amplifiers. The unit measures 9-1/8"W x 2"H x 7-3/8"D.

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.

Fitment

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Specifications

BrandRockford Fosgate
Part NumberR750-1D
CategoryMobile Electronics

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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