Rockville Rdf-4 4-Channel Car Amplifier
Best price now
$99.95at WalmartObserved Nov 1, 2026, 3:24 PM
Compared across 4 stores. Prices are checked against each store and labelled with when.
Compared across 4 stores. Prices are checked against each store and labelled with when.
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In stockSold by audiosavings
In stock
In stock
Availability unknownSold by Audiosavings
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Lowest price we've seen: $99.95 on Oct 30 at Audiosavings. Tracked across 4 stores since Oct 30.
The Rockville RDF-4 is a 4-channel digital Class D car amplifier with dyno-certified ratings of 175W RMS x 4 at 2 ohms, 115W RMS x 4 at 4 ohms, and 350W RMS x 2 bridged at 4 ohms, measured at 1kHz, 1% THD+N, and 14.4VDC. The amplifier uses a high-speed MOSFET power supply and an aluminum heatsink. Its frequency response is 5Hz-45kHz at ±3dB, signal-to-noise ratio is 73dBA referenced to 1W RMS, and operating range is 9V-16.1VDC. Full-range, low-pass, and high-pass crossover modes are configurable, with low-pass and high-pass ranges of 50Hz-250Hz. Dimensions are 9.63 x 4.92 x 1.81 inches, with 4 AWG power/ground terminals, 10 AWG speaker outputs, and four internal 20A fuses.