MAINS VOLTAGE SELECTION

Special attention should be paid to the following information:

Do not change the voltage setting without first turning the unit off and unplugging the mains lead.

This unit is capable of operating over a range of mains voltages by means of a 4-position mains input fuse carrier. It is important to ensure that the correct voltage setting is selected for the level of local mains voltage supply, for safe, uninterrupted operation of the unit. Voltage selection is achieved by positioning the fuse carrier so that the required voltage appears next to the arrow which is moulded in the connector. In this way the unit is set up for operation at one of the following ranges of mains supply:

NOMINAL VOLTAGE

OPERATING VOLTAGE RANGE

 

(+10/-15%)

Vrms AC

Vrms AC

230

196 - 253

115

98

- 126

100

85

- 110

85

73

- 93

To remove the fuse use a small screwdriver to prise the fuse carrier from its location in the connector.

To avoid risk of fire use the correct value fuse, as indicated on the unit.

REPLACING MAINS FUSE

Switch the ON/OFF switch to the OFF position. Remove the mains lead from the connector. Use a small screwdriver to prise the fuse carrier from its location in the connector. Check the fuse and replace if necessary; also check that the voltage selection is correct for the mains supply level before switching the unit ON again.

In the event of repeated failure of the mains fuse consult the Soundcraft dealer from where the unit was purchased.

This unit contains no user serviceable parts. Refer all servicing to a qualified service engineer, through the appropriate Soundcraft dealer.

Introduction

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SoundCraft CPS250, CPS275 technical manual Mains Voltage Selection, Replacing Mains Fuse

CPS250, CPS275 specifications

SoundCraft is renowned for producing high-quality audio mixing consoles that cater to a wide range of audio professionals and enthusiasts. Among their notable offerings are the SoundCraft CPS275 and CPS250 power amplifiers, which combine innovative technologies with reliable performance.

The SoundCraft CPS275 is a powerhouse designed to deliver a robust output with exceptional clarity. It features a dual-channel configuration, providing 275 watts per channel into 4 ohms. The CPS275 is built with a solid-state design, ensuring high efficiency and minimal distortion, making it suitable for both live performances and studio applications. One of its distinguishing features is the advanced thermal protection system, which safeguards the amplifier from overheating, ensuring longevity and reliability even in demanding environments.

On the other hand, the SoundCraft CPS250 is a slightly smaller model, ideal for users seeking a balance between power and portability. It offers 250 watts per channel into 4 ohms, making it perfect for smaller venues or monitors. This model emphasizes versatility and sound fidelity, featuring a class AB circuitry that enhances audio accuracy while maintaining low noise levels.

Both the CPS275 and CPS250 come equipped with comprehensive protection circuitry, which includes short-circuit, overload, and DC protection. This guarantees that both amplifiers will perform consistently without risking damage to connected equipment.

In terms of connectivity, these amplifiers feature XLR and 1/4-inch TRS inputs, allowing seamless integration with a wide array of sound systems. Additionally, the CPS series employs efficient cooling systems, ensuring optimal performance without the risk of overheating even during prolonged usage.

Both models are designed with rugged construction, making them suitable for the rigors of touring and live events. They are equipped with rack-mountable chassis, allowing for easy installation in professional setups.

Overall, the SoundCraft CPS275 and CPS250 amplifiers exemplify the brand's commitment to delivering high-quality audio solutions. With their advanced technologies, protective features, and exceptional sound quality, they cater to a variety of audio applications, making them an excellent choice for professionals in the music and live sound industries. Whether powering large PA systems or smaller setups, these amplifiers are engineered to meet the demands of any audio environment with impressive accuracy and reliability.