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Specifying the right power amp is often easier than 

finding it. Our SRA Series makes it a snap to get exactly 

what you need. 

SRAs are advanced, efficient amplifiers perfect for 

installations with modest power requirements. Housed 

in a compact single rack space chassis, and weighing 

only 10lbs, they're designed to drive 4 or 8 Ohm loads. 

Choose from 4 models available in 2 and 4-channel 

configurations with power ratings of 75W and 150W 

per channel into 4 Ohms. The 150W models are 

capable of driving 25V constant voltage lines directly. 

Switch mode power supplies and Class-D amplifier 

circuitry provide an extremely power efficient solution. 

They are convection cooled, so little maintenance is 

needed after the installation, and no annoying fan 

noise. Of course you get the reliability, superior sonic 

quality and rugged construction you’ve come to 

expect from Ashly.

SRA Features:

• Convection cooling

• Extremely low noise

• Extensive protection circuitry

• Level attenuators for each channel

•  Signal present and clip alert status LEDs

• Selectable input sensitivity

• Defeatable 80Hz HPF

• Euroblock inputs/outputs

•  Stereo or bridged mode switch per channel pair

• Remote stand-by control

•  Adjustable turn-on delay up to 8 seconds

•  Stereo headphone jack (on 2-channel models)

•  Safety/Compliance: 

c

TUV

us

, CE, FCC, RoHS

Specifications                                           Notes: 0dBu = 0.775 VRMS

Frequency Response  

(8 Ohms)

20Hz–20kHz, ±1.0dB

Distortion (SMPTE, typical) < 0.5% - 8 Ohm load, 10dB below 

rated power

Distortion (THD-N, typical) < 0.5% - 8 Ohm load, 10dB below 

rated power, 20Hz–20kHz

Damping Factor  

(8 Ohm load, < 1 kHz)

> 200 into 8 Ohms

Input Impedance

20k Ohms, Balanced

Input Sensitivity

1dBu (75W), 4dBu (150W)

Gain

26dBu, 36dBu, Selectable

Maximum Input Level

+21dBu

HPF

80Hz 2

nd 

Order, defeatable

Cooling

Convection

Output Circuitry

Class D

Amplifier/Load Protection

Output Overcurent, DC Output, 

Main Supply Rail Overvoltage,  

Chassis Temperature, Inrush 

Limiting, Mains Fuse

Environmental

40-120° F, (4-49° C) noncon-

densing

Front Panel

Controls

AC Power Switch, Level

Indicators (LED color)

Power (Blue), Standby (Yellow),  

Protect (Red), Signal (Green), 

Clip (Red)

Rear Panel

Controls

80Hz HPF, Gain/Sensitivity: +26dB, 

+36dB, Bridge/Stereo Switch, 

Remote Standby, Delay

Connectors (each channel) Input: 3-Pin Euroblock 

Output: Euroblock

Cordset

3-Prong IEC

SRA SERIES

S

tandard

 P

ower

 a

mPlifierS

SRA Models

2075 4075 2150 4150

Channels

2

4

2

4

Max Output Power: Per Channel, 20Hz–20KHz, 1% THD All Channels Driven
4 Ohms

75W

75W

150W

150W

8 Ohms

40W

40W

80W

80W

8 Ohms (Bridged)

150W

150W

300W

300W

Line Current Draw: All Channels Driven @ 4 Ohms
Standby Mode

37mA

39mA

89mA 102mA

No Signal

320mA 565mA 370mA 660mA

Typical (1/8 power pink noise)

0.70A

1.25A

1.10A

1.95A

Max (1/3 power pink noise)

1.23A

2.25A

2.10A

3.80A

Thermal Dissipation: BTU/hr, All Channels Driven @ 4 Ohms
Standby Mode

13

15

14

23

No Signal

61

113

72

137

Typical (1/8 power pink noise)

73

145

111

211

Max (1/3 power pink noise)

85

150

126

263

Signal to Noise
 20Hz–20kHz, unweighted

>100dB  >100dB   >103dB   >103dB 

©2014 All features, specifications and graphical represen-

tations are subject to change without notice. Ashly Audio  

is a division of Jam Industries, Ltd. DS-1 1213

Sra

2075

Sra

2150

Sra

4075

Sra

4150

5-Year Warranty

Hand-built in 

Webster, NY 

Weights, Dimensions & Power

Dimensions

19”W x 1.75"H x 11”D (483mm x 45.5mm x 279.4mm)

Unit Weight

2075: 8.75lbs (3.97kg) 2150: 8.83lbs (4kg) 

4075: 9.4lbs (4.27kg) 4150: 9.48lbs (4.3kg)

Shipping Weight 2075/2150: 15lbs (7kg) 4075/4150: 16lbs (8kg)

Power Req.

120VAC, 240VAC ±10%, 50/60Hz (factory set)

Ashly Audio, Inc. 

|

 847 Holt Road

Webster, New York 14580-9103 USA

+1-800-828-6308 US toll free

+1-585-872-0010 tel 

|

 +1-585-872-0739 fax

[email protected]

 

|

 

[email protected]

www.ashly.com

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