FA-125.2 Compact Class D Power Amplifier  Architect & Engineering Specs

The amplifier shall be a 2-channel configuration of Class D design housed in a 1/2 RU metal chassis with a metal front. The front panel shall be equipped with recessed input levels potentiomters and a multi-color LED Status indicator for each channel (Green:Input Signal, Flashing Amber:Limit, Flashing Red: Clip, Solid Red: Mute, Solid Red (2 adjacent channels): Protect). There shall be a front panel Power button that can switch between Power On and Standby Modes with an LED backlight to indicate status (Solid-ON, Blinking-Standby/Sleep). 

The amplifier's rear panel shall be equipped with 3.5mm removeable Balanced Euroblock connectors for each input. There shall also be a removeable 3.5mm Euroblock connector for DC level control per channel, as well as a standby port and a GPO fault output. A set of DIP switches per channel allow a selectable 80Hz HPF and clip limiter to be switched on or off. There shall also be a DIP switch for selecting overall input gain of -10dBv or +4dBu and also DIP switches for front panel lockout and standby port polarity (NO/NC). The speaker outputs shall be a 2-pole 5mm removeable Euroblock for each channel, movable to either the LowZ or HiZ terminals depending on the selected power mode. The rear and side panels shall be perforated and a single variable-speed fan shall be mounted internally for side-to-rear airflow to enable proper cooling. There shall be an IEC power connection and the unit shall be supplied with the region-appropriate power cable. The amplifier shall have a built-in DSP that automatically activates a limiter for each channel before the onset of clipping and also an 80Hz HPF when HiZ mode is selected. A USB type-C port is accessible on the rear panel for firmware updates.

The amplfier shall be capable of driving up to 125W @ 4 or 8 Ohms per channel and may be switched to operate at 70V or 100V. Each pair of adjacent channels shall be capable of power-sharing, driving up to 250W total between both channels. The amplifier shall have a universal power supply capable of operating from 100-240VAC 50/60Hz and will have a current consumption @ 1/8 continuous rated output of 1.27A @ 4 Ohms. The amplfier housing shall measure 8.66" W x 1.72" H x 10.32" D ,with a net weight of 3.55 lbs.

Optional acessories shall be:
FA-1.2RM single/dual rack-mount kit
FA-TWB table/wall mount bracket


The amplfier shall be called the Ashly FA-125.2