Stealth Acoustics SA255-MKII Monaural, High-Current Amp

Stealth Acoustics SA255-MKII Monaural, High-Current Amplifier with LP Filter

The Stealth Acoustics SA255 is an integrated monaural amplifier with low pass filter designed as a low distortion power source for Stealth Acoustics wall or ceiling mounted, invisible subwoofer panels or other unpowered speakers. Intended for whole house audio or home theatre bass applications, the SA255 may stack with other components or mount in a standard 19" (482 mm) equipment rack requiring only two RU spaces or 3½" (89 mm). Removable rack mount ears are provided.

The SA255 delivers a solid 250 watts into an 8Ω load and 350 watts into 4Ω. A variable low pass, 18 dB per octave filter allows for infinite crossover points from 50Hz to 150Hz. A built-in automatic limiter stage minimizes system overloads. With a full complement of input and output connectors, the SA255 is easily integrated into any audio system. Inputs include RCA line level, balanced XLR line level, and phoenix connector speaker level, all with pass-through capability. The speaker level input/pass-through connections allow the SA255 to feed directly from full-range speaker lines, anywhere in the system.

The SA255’s amplifier output connection is via a 5-way binding post designed to accept heavy gauge speaker wires. A selectable automatic turn-on feature activates the amplifier only when audio signals are present. Other features include an internal, quiet, 8-stage cooling fan that automatically engages as required. Front panel controls include volume control, variable low pass filter, phase control, power switch, six power output monitor LEDs, and front panel graphics brightness control. Rear panel controls include a filter bypass switch for full range operation, no signal mute switch, ground lift switch, and power switch. Input line voltage is auto-sensed/selected and supports 115VAC and 230VAC. The Stealth Acoustics SA255 monaural amplifier is covered by a 2 year manufacturer’s warranty