The Ashly TRA-2150 is a 2-channel convection-cooled rackmount P.A. or installation power amplifier housed in a rugged 2-RU metal chassis. The unit offers an output of 80 Watts per side at 8 Ohms, 150 Watts per side at 4 Ohms, and is designed to drive 4- and 8-Ohm loads and transformer-coupled 70V and 100V lines simultaneously. The coupling transformers are internally mounted.
The TRA-2150 incorporates a switch-mode power supply and Class-D amplifier circuitry, providing a power-efficient solution. The low-noise unit features a switchable high-pass filter and selectable gain sensitivity, turn-on delay DIP switches with up to 8 seconds of delay available, and rear-mounted set-and-forget gain controls.
The TRA-2150 is equipped with an internally switchable 120/240V power supply, and extensive protection circuitry, along with standard Euroblock inputs and screw terminal outputs.
2-RU rackmount stereo power amplifier with 80 Watts per channel power output at 8 Ohms and built-in 60W/70V transformer
Designed to simultaneously drive 4- or 8-Ohm loads and 70/100V transformer-coupled lines
2-stage high-efficiency switched-mode power supply with high power-to-weight ratio
Ultra-quiet convection-cooled operation
Onboard 80 Hz HPF, selectable gain sensitivity
Up to 8 seconds of turn-on delay with selectable dip switch complement
Comprehensive amplifier protection circuitry includes: output over-current, DC output, main supply rail over-voltage, chassis temperature, inrush limiting, and mains fuse
Front panel indicators include: overall power, standby, and protect—along with per-channel clip and signal indicators
Euroblock input connectors, screw terminal outputs

Ashly TRA-2150 Specs
Number of Channels 2
Power Rating 8 Ohms:
80 W per Channel
4 Ohms:
150 W per Channel
70 V / 100 V:
150 W per Channel
Amplifier Class Class-D
Performance
Frequency Response 80 Hz to 20 kHz +1/-3 dB
Damping Factor > 200 at 8 Ohms
Input Impedance 20 Kilohms (Balanced)
Max Gain 36 dB
SNR > 103 dB
THD 8 Ohms:
< 0.5% (Full Range, at Rated Power -10 dB) Intermodulation Distortion < 0.5% (SMPTE, at 8 Ohms) Connectivity I/O 2 x Euroblock 3-Pin Input 2 x Screw Terminal Output Power AC Power Connector IEC / NEMA 5-15 Current Consumption 1.1 A (1/8 Power) 2.1 A (1/3 Power) 370 mA (Idle) 89 mA (Standby) Physical Cooling Convection Thermal Dissipation 14 BTU/hr (Standby) 72 BTU/hr (Idle) 111 BTU/hr (Typical) 126 BTU/hr (Maximum) Dimensions 19.0 x 3.5 x 12.0" / 48.3 x 8.9 x 30.5 cm Weight 19.5 lb / 8.8 kg Packaging Info Package Weight 27 lb Box Dimensions (LxWxH) 24.5 x 17.8 x 4.75"