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Rockville RXD-M4 vs Sonido Mask ZX-1500.1: dyno test comparison

At 1Ω (the lowest load both were tested at), Sonido Mask ZX-1500.1 measured 63w more (1330w vs 1267w).

LoadRockville RXD-M4Sonido Mask ZX-1500.1
1Ω1267w1330w
Rated (per video)1500w—
TesterWilliston Audio LabsWilliston Audio Labs

Different testers, voltages and dynos can change results; follow the source videos for setup details.

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Data from public dyno-test videos; each amp cites the tester and video. Results vary with voltage, unit and test setup.

Work on cars too? Check out the Tech Survival Guide, written by AmpDyno's founder, a working auto tech.