Amplifier

Stealth Acoustics SA 255 MKII amplifier
Stealth Acoustics SA 2400 amplifiers stacked
Amplifier back panel with speaker level inputs, balanced outputs, line level inputs/outputs, ground, fan, speaker output, power switch, AC input, and warnings.
Stealth Acoustics SA 2400 amplifiers stacked
Amplifier back panel with speaker level inputs, balanced outputs, line level inputs/outputs, ground, fan, speaker output, power switch, AC input, and warnings.

STEALTH ACOUSTICS

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SA255-MKII

SA255-MKII

Monaural Subwoofer Amplifier

Audio

SA255-MKII Monaural Subwoofer Amplifier

The SA255-MKII is an integrated monaural subwoofer amplifier and crossover system designed as a low-distortion power source for Stealth Acoustics invisible subwoofer panels and other un-powered subwoofers. The rack-mount chassis combines variable low-pass filtering, fixed subsonic filtering and high current output for clean, controlled bass in home audio and home-theater systems.

  • 250 watts into 8 ohm, 350 watts into 4 ohm (both less than 0.05% THD)

  • Total harmonic distortion below 0.05% at 1 watt

  • Signal-to-noise ratio 86 dB below rated output

  • Variable low-pass: 50 Hz to 150 Hz at 18 dB/octave with bypass

  • Fixed high-pass (subsonic) filter: 18 Hz at 30 dB/octave

  • 19 in W x 3-1/2 in H x 13-5/8 in D, 31.3 lb

  • Selectable 115 / 230 VAC operation

Black anodized aluminum finish and a single-rack-unit footprint make it easy to integrate into any equipment rack.

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Manifacturer Warranty

Our brands provide full warranty coverage on all listed products.

Tech Support

We provide system support to dealers and installers by offering product guidance, installation and wiring, product troubleshooting, and control programming to ensure optimal performance.

Free Demo

Dealers and installers can book a demo to experience the products in our showroom and learn more.

Training

Dealers and installers receive training on product specs and programming controls to enable effective and convenient distribution. Dealers and installers will be well prepared to meet their clients' needs and expectations.

Specs

Specification

Value

Power Output (8Ω)

250 watts (< 0.05 THD)

Power Output (4Ω)

350 watts (< 0.05 THD)

Total Harmonic Distortion

< 0.05 @ 1 watt

Signal to Noise Ratio

86 dB below rated output

Low Pass Filter

50Hz-150Hz / 18 dB per octave (variable with bypass)

High Pass Filter

18Hz / 30 dB per octave (fixed)

Dimensions

19" W × 3-1/2" H × 13-5/8" D

Weight

31.3 lbs

Finish

Black anodized aluminum

Impedance

8Ω nominal; 4Ω minimum

Current Draw

6.2A @ 350W/4Ω (115VAC/60Hz)

Input Voltages

115VAC or 230VAC selectable

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Invisible audio that disappears but leaves the impact

Invisible audio that disappears but leaves the impact

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