Ashly TRA-2075 Quick start guide

TRA-Series, Lo-Z, 70/100V 2-Channel Amplifiers
The power amplifiers shall consist of two separate models (2075,
2150), being of two channels, and shall deliver a minimum power
of 40 or 80 watts RMS per channel into 8 ohm loads and 75 or
150 watts RMS per channel into 4 ohms depending on the model
being used. The amplifiers shall have internally mounted trans-
formers to provide both 70V and 100V constant voltage. Each
channel shall deliver a minimum of 75W or 150W, model depend-
ing, to the constant voltage lines.
Dimensions of the amplifiers shall be 19”W x 35”H x 11.0”D, with
a weight of 19.5 pounds. The amplifiers shall utilize a state-of-
the-art, efficient, switched mode power supply. The power supply
shall operate at either 120 or 240VAC, 50/60Hz. The amplifier
shall be convection cooled.
The amplifier shall have a selectable input gain of 26dB or 36dB.
Frequency response shall be 20 Hz - 20 kHz, +/- 1.0 dB. Hum
and noise shall be greater than 98dB below full output (20Hz to
20KHz unweighted).
Each amplifier channel shall be supplied with an attenuator
located on the rear panel. Each input shall have a fixed high pass
filter of 12dB/octave at 80Hz.
The inputs shall be active balanced design, with an impedance
of 20K ohm with a maximum input level of +21dBu. Input con-
nections shall be 3-pin Euroblock. Output connectors shall be a
screw terminal strip with safety cover.
The amplifiers shall have front panel indicators for power, stand-
by and protect. Each channel shall have a 6-step signal level
meter indicating -24db, -18dB, -12dB, -6dB, and -3dB and clip
alert.
The amplifier shall have built in protection for Output Over-
Current, DC Output, Main Supply Rail Overvoltage, Chassis
Internal Temperature, Inrush Limiting and Mains Fuse.
The amplifer shall have a 2-pin Standby Connector to provide
for remote standby switching with a 0.5 second turn-on delay.
Additionally, the amplifier shall have user selectable Delay
Switches to provide incremental turn-on delay when the Standby
connector is used. The switches shall be additive, providing as
much as 7.5 seconds of delay to the 0.5 second Standby delay.
The amplifier shall have a cTUVus safety listing and shall be in
compliance with FCC, CE and RoHS regulations.
The amplifier shall be covered under a full limited warranty of not
less than five years. The amplifier shall be an SRA-Series two-
channel model, manufactured by Ashly Audio, Inc. of Rochester,
New York.
Features
• 2RU Chassis
• High Efficiency Switched Mode Power
Supply
• Class-D Output Circuitry
• Input Attenuators On Rear Panel
• Input Sensitivity 26dB or 36db
• Remote Power Turn-On/Off
• Adjustable Turn-on Delay
• Convection Cooled
• 6-Step Signal Level and Clip LEDs
• Safety/Compliance: cTUVus/FCC,
CE, RoHS
Technical Notes & Specifications
TRA-Series 2075 and 2150 Two-Channel Amplifiers
Architects Specications

Ashly Audio Inc., 847 Holt Road, Webster, NY 14580-9103
Toll Free [phone], Tel: [phone], Fax: [phone]
www.ashly.com, e-mail: [e-mail]
Ashly manufactures a complete and comprehensive line of Analog and Digital Signal Processors, Power
Amplifiers, Mixers, and Amplifier Input Options. Please call, write or visit our web site for information on
any of these Ashly Products.
Rear Panel
TRA-Series Specications 2075 2150
Power Output
Stereo Mode, both channels driven
8 ohms, 20 Hz - 20 kHz, 1% THD 2 x 40W 2 x 80W
4 ohms, 20 Hz - 20 kHz, 1% THD 2 x 75W 2 x 150W
70V/100V CV, 2 x 75W 2 x 150W
Power Consumption (Pink Noise @ 4 Ohm)
1/8th Output 18.75W 37.5W
1/8th Draw 39.0W 64.0W
1/8th Current 0.69A 1.10A
Idle Power 17.0W 20.0W
Idle Current 0.30A 0.35A
Signal to Noise 20 Hz-20 kHz, unweighted >98 dB >105 dB
Output Circuitry Class D D
Power Cable Connector 3-Prong IEC 3-Prong IEC
Weight lbs./ kg. 19.5/8.85 19.5/8.85
TRA-Series Specications (All)
Frequency Response 20 Hz - 20 kHz, +/- 1.0 dB
Damping Factor - 8 ohm load, < 1 kHz > 200
Input Impedance 20 kΩ, balanced
Maximum Input Level: +21 dBu
Cooling convection
Front Panel Indicators (Per channel) Clip & Signal
Overall power, standby, protect
Attenuators Per channel: front panel
Input Connectors, each channel 3- Pin Euroblock
Output connectors, each channel Screw terminals
Amplier Protection Output Overcurent, DC Output, Mail Supply Rail Overvoltage
Chassis Temperature, Inrush Limiting, Mains Fuse
Dimensions 19”W x 3.5”H x 11.0”D (483mmW x 88.9mmH x 279.4mmD)