ASHLY FA 125.2 1/2U Power Amplifier 2 x125W @ 4/8 Ohms, 25/70/100V

Product Overview

The Ashly FA 125.2 is a half-rack (1/2U) 2-channel compact Class D power amplifier delivering 125W per channel at 4 or 8 ohms with full 25V, 70V, and 100V constant-voltage support on both channels. The entry 2-channel model in the Ashly FA compact half-rack power amplifier series, the FA 125.2 provides the same form factor and feature set as the FA 125.4 in a 2-channel configuration, suitable for conference rooms, under-table installs, display mounting, kiosk applications, and any commercial AV space where a compact 2-zone amplifier with constant-voltage capability is needed.

Product Description

The Ashly FA 125.2 compact half-rack power amplifier fits in locations where standard amplifiers are impractical: under conference tables, mounted behind flat-panel displays, inside kiosks, or concealed in exhibit structures. The Class D design runs at high efficiency, and the Silent Active Cooling system keeps fan noise minimal for occupied commercial spaces. The FA 125.2 supports 25V, 70V, and 100V constant-voltage distributed audio alongside standard 4 and 8 ohm low-impedance operation, selectable per channel. Dynamic power sharing between the two channels allows up to 250W total when one channel carries a lighter load, adding flexibility for uneven zone power requirements. Built-in DSP activates automatically in Hi-Z mode: an 80 Hz high-pass filter protects distributed speakers from bass loading, and a clip limiter prevents transient overload. Front panel controls include per-channel level potentiometers, status LEDs, and a power switch, all of which can be disabled for security. Remote GPIO supports DC level control, standby, and failure status for room control system integration. Input sensitivity is field-switchable between -10 dBV and +4 dBu. Auto Sleep/Wake mode places the unit in standby after 30 minutes of signal absence. A front-panel USB port allows firmware updates in the field. The FA 125.2 carries cTUVus, CE, FCC, and RoHS certifications and is Energy Star compliant. Optional mounting accessories include the FA1.2RM rack mount kit (single unit or two side-by-side in 1U) and the FATWB table/wall bracket.

Key Features

• 2-Channel Half-Rack Form Factor — Compact 1/2U width for concealed installs under tables, behind displays, and inside kiosks.
• 25V / 70V / 100V Constant-Voltage Output — Both channels support all three standard constant-voltage levels for commercial paging and BGM.
• 125W Per Channel at 4 or 8 Ohms — Rated output with both channels driven simultaneously.
• Dynamic Power Sharing — Both channels share a 250W total budget, accommodating uneven speaker zone loads.
• Silent Active Cooling — Quiet fan for noise-sensitive occupied conference rooms and meeting spaces.
• Auto Sleep/Wake Mode — Standby after 30 minutes of inactivity; resumes instantly on signal detection.
• Built-in 80 Hz HPF and Clip Limiter — Automatic DSP protection in Hi-Z mode for distributed speakers.
• Front Panel Security Lockout — Disables level controls and power switch to prevent unauthorized adjustment.
• Remote GPIO — DC level control, standby input, and failure output for room control integration.
• Switchable Input Sensitivity — -10 dBV or +4 dBu selectable.
• USB Firmware Update Port — Field-upgradable via front-panel USB.
• Energy Star Compliant — Meets energy efficiency requirements for commercial building installations.

Typical Applications

• Conference room
• Boardroom
• Training room
• Commercial meeting space
• Multi-purpose room
• House of worship

Technical Specifications

Frequently Asked Questions

What constant-voltage standards does the FA 125.2 support?

The FA 125.2 supports 25V, 70V, and 100V constant-voltage operation, selectable per channel, covering all standard distributed audio voltage levels used in North American and international commercial AV installations.

How does the FA 125.2 differ from the FA 125.4?

The FA 125.2 provides 2 channels; the FA 125.4 provides 4 channels. Both are half-rack width, Class D, with the same feature set, DSP functions, and constant-voltage capabilities. Choose the FA 125.2 for 2-zone applications and the FA 125.4 for 4-zone applications in the same physical space.

Can the FA 125.2 be rack-mounted?

Yes. The optional FA1.2RM rack mount kit allows one or two FA-125 half-rack units to be installed side-by-side in a standard 1U rack bay.

Is the FA 125.2 suitable for non-rack concealed installations?

Yes. The FA 125.2 is designed specifically for under-table, behind-display, kiosk, and wall-mount concealed installations. The optional FATWB table/wall bracket provides a purpose-built mounting solution.

Does the FA 125.2 have front panel lockout?

Yes. The front panel level controls and power switch can be disabled to prevent unauthorized adjustment in installations where the amplifier is accessible to end users.