ASHLY SRA-2150 Convection-Cooled 1U Power Amplifier 2 x 150W at 4 Ohms/ 80W at 8 Ohms

Product Overview

The Ashly SRA-2150 is a 2-channel convection-cooled fanless rack-mount commercial installation amplifier delivering 150W per channel at 4 ohms and 80W per channel at 8 ohms in a single 1U chassis. As the 2-channel 150W model in the Ashly SRA fanless commercial installation amplifier series, the SRA-2150 also supports 25V constant-voltage output directly from the 4-ohm output, making it suitable for 2-channel commercial AV installations in noise-sensitive environments including boardrooms, courtrooms, conference rooms, and government facilities. The 2-channel version also includes a stereo headphone jack for monitor use.

Product Description

The Ashly SRA-2150 uses Class-D amplifier circuitry and a switch-mode power supply for energy-efficient operation in a compact 1U convection-cooled chassis weighing approximately 10 lbs. With no fans, the SRA-2150 operates in complete silence after installation—essential for permanently installed amplifiers in spaces where fan hum would be objectionable. Two independent channels each provide 150W at 4 ohms or 80W at 8 ohms, with both channels bridgeable to 300W at 8 ohms for a single high-power mono zone. The 150W 4-ohm output can drive 25V constant-voltage lines directly. A stereo headphone jack is included on the 2-channel models for monitoring use. Front-panel level attenuators and signal present/clip alert LEDs provide per-channel monitoring and control. Rear-panel controls include a gain switch (+36 dB or +26 dB input sensitivity), an 80 Hz high-pass filter (on/off) per channel, and Euroblock connectors for standard commercial installation wiring. Remote power turn-on/off and an adjustable turn-on delay (up to 7.5 seconds) enable integration with room control systems. Extensive protection circuitry covers output overcurrent, DC output faults, supply overvoltage, in-rush limiting, and mains fuse. The SRA-2150 carries TUV, CE, FCC, and RoHS certifications and a 5-year warranty.

Key Features

• Convection Cooling (Fanless) — No fan noise for permanently installed quiet environments: boardrooms, courtrooms, and conference rooms.
• 2 Channels, 1U Rack Space — Compact single-rack-unit form factor weighing approximately 10 lbs.
• 150W Per Channel at 4 Ohms — Full rated output with both channels driven simultaneously.
• 80W Per Channel at 8 Ohms — Operates into both 4-ohm and 8-ohm speaker loads.
• 300W Bridged Mono at 8 Ohms — Both channels bridge for high-power single mono zone output.
• 25V Constant Voltage Capable — The 150W 4-ohm output supports 25V constant-voltage line driving directly.
• Stereo Headphone Jack — Included on the 2-channel models for monitor use.
• 80 Hz High-Pass Filter — Switchable per channel to protect distributed speakers.
• Remote Power Turn-On/Off — Centralized power management from room control systems.
• Adjustable Turn-On Delay — Up to 7.5 seconds to protect speakers during power-up.
• Euroblock I/O Connectors — Standard commercial installation wiring on inputs and outputs.
• 5-Year Warranty — Backed by Ashly’s commercial-grade amplifier warranty.

Typical Applications

• Boardroom
• Conference room
• Government space
• Commercial meeting space
• Multi-purpose room
• Training room

Technical Specifications

Frequently Asked Questions

Is the SRA-2150 completely fanless?

Yes. The SRA-2150 is fully convection-cooled with no fans, making it appropriate for permanently installed amplifiers in noise-sensitive occupied spaces including boardrooms, courtrooms, and conference rooms.

Does the SRA-2150 support 70V constant-voltage distribution?

No. The SRA-2150 supports 25V constant-voltage output only via the direct-coupled 4-ohm output. For 70V or 100V transformer-isolated constant-voltage distribution, the TRA series (TRA-2075 or TRA-2150) is the appropriate product.

What does the stereo headphone jack on the SRA-2150 do?

The stereo headphone jack on 2-channel SRA models allows monitoring of the output signal, which is useful during installation and commissioning or for on-site level adjustment.

Can the two channels of the SRA-2150 be bridged?

Yes. The SRA-2150 supports bridged mono operation, delivering 300W into an 8-ohm load, providing a single high-power mono output from the two-channel amplifier.