Operating Manual - SRA-120 Power Amplifier

Table Of Contents

1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 UNPACKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 AC POWER REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.1 AC Voltage Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.2 Current Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3.3 AC Grounding Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4 CABLE REQUIREMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4.1 Input Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

4.2 Output Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5 RACK-MOUNTING REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.1 Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.2 Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.3 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

5.4 Security Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

6 FRONT PANEL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.1 Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.2 Level Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.3 Signal Present Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.4 Clipping Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.5 Protect Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

6.6 Headphone Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

7 REAR PANEL FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

7.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

7.2 Input Sensitivity Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.3 Normal/Bridging Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.4 Stereo/Mono Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7.5 Speaker Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

8 TYPICAL APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8.1 Stereo Sound Reinforcement System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8.2 Stereo Playback Monitoring System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8.3 Mono Operation in High Level Bi-Amped System . . . . . . . . . . . . . . . . . . . . . 9

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Ashly SRA-120 manual Table Of Contents
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SRA-120 specifications

The Ashly SRA-120 is a powerful and versatile power amplifier designed for professional audio applications. Known for its reliability and exceptional sound quality, the SRA-120 stands out in various settings, including live sound reinforcement, installed sound systems, and mobile audio installations.

One of the key features of the Ashly SRA-120 is its robust power output. It delivers 120 watts per channel at 8 ohms, making it suitable for driving a range of speakers effectively. The amplifier can also produce 200 watts per channel at 4 ohms, ensuring ample power for more demanding situations where higher speaker sensitivity and increased volume are required.

The SRA-120 incorporates advanced thermal management and protection systems, which allow the amplifier to operate reliably under extended use without overheating. This feature is especially important for professionals who rely on consistent performance during lengthy events or in commercial applications. Additionally, the unit is equipped with short circuit, DC, and thermal protection to safeguard both the device and the connected speakers.

Another notable technology found in the SRA-120 is its low noise operation. The amplifier employs sophisticated circuitry which minimizes distortion and unwanted noise, essentially delivering a clearer and more detailed audio signal. This characteristic is particularly beneficial in environments where audio quality is of the utmost importance, such as theaters, auditoriums, and conference rooms.

Control and connectivity options enhance the usability of the Ashly SRA-120. It features balanced XLR and 1/4-inch inputs, making it easy to connect to various mixing consoles and audio sources. The amplifier also provides both binding post and Speakon outputs, allowing for flexibility in speaker connections and ensuring compatibility with various speaker types.

In terms of construction, the SRA-120 boasts a rugged design, making it suitable for both portable and permanent installations. It is housed in a lightweight yet durable chassis that can withstand the rigors of travel and extensive use.

Overall, the Ashly SRA-120 represents an excellent choice for audio professionals seeking a reliable, high-quality power amplifier with essential features and advanced technology, all while maintaining exceptional audio fidelity and performance in any setting.
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