Ashly 4075, 4150 specifications Architects Specifications, Technical Notes & Specifications

TRA-Series 4075 and 4150 Four-Channel Amplifiers Technical Notes & Specifications

Architects Specifications

TRA-Series, Lo-Z, 70V/100V 4-Channel Amplifiers	The amplifiers shall have front panel indicators for power, stand-
The power amplifiers shall consist of two separate models (4075,	by and protect. Each channel shall have a 6-step signal level
4150), being of four channels, and shall deliver a minimum	meter indicating -24db, -18dB, -12dB, -6dB, -3dB and clip alert.
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	The amplifier shall have built in protection for Output Over-
model being used. The amplifiers shall have internally mounted	Current, DC Output, Main Supply Rail Overvoltage, Chassis
transformers to provide both 70V and 100V constant voltage.	Internal Temperature, Inrush Limiting and Mains Fuse.
Each channel shall deliver a minimum of 75W or 150W, model
depending, to the constant voltage lines.	The amplifer shall have a 2-pin Standby Connector to provide
	for remote standby switching with a 0.5 second turn-on delay.
Dimensions of the amplifiers shall be 19”W x 3.5”H x 11.0”D,	Additionally, the amplifier shall have user selectable Delay
with a weight of 29.5 pounds. The amplifiers shall utilize a state-	Switches to provide incremental turn-on delay when the Standby
of-the-art, efficient, switched mode power supply. The power	connector is used. The switches shall be additive, providing as
supply shall operate at either 120 or 240VAC, 50/60Hz. The	much as 7.5 seconds of delay to the 0.5 second Standby delay.
amplifier shall be convection cooled.	The amplifier shall have a cTUVus safety listing and shall be in
The amplifier shall have a selectable input gain of 26dB or 36dB.	compliance with FCC, CE and RoHS regulations.
Frequency response shall be 20 Hz - 20 kHz, +/- 1.0 dB. Hum
and noise shall be greater than 98dB and greater than 105dB	The amplifier shall be covered under a full limited warranty of not
repectively below full output (20Hz to 20KHz unweighted).	less than five years. The amplifier shall be an SRA-Series two-
	channel model, manufactured by Ashly Audio, Inc. of Rochester,
Each amplifier channel shall be supplied with an attenuator	New York.
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.

Features

•2RU Chassis

•4 Independent Channels

•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