Important Precautions

This symbol is used to alert the oper- ator to follow important operating pro- cedures and precautions detailed in documentation.

This symbol is used to warn opera- tors that uninsulated “dangerous volt- ages” are present within the equip- ment enclosure that may pose a risk of electric shock.

1.Save the carton and packing material even if the equipment has arrived in good condition. Should you ever need to ship the unit, use only the original factory packing.

2.Read all documentation before oper- ating your equipment. Retain all docu- mentation for future reference.

3.Follow all instructions printed on unit chassis for proper operation.

4.Do not spill water or other liquids into or on the unit, or operate the unit while standing in liquid.

5.Make sure power outlets conform to the power requirements listed on the back of the unit.

6.Do not use the unit if the electrical power cord is frayed or broken. The power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular atten- tion to cords and plugs, convenience receptacles, and the point where they exit from the appliance.

7.Always operate the unit with the AC ground wire connected to the electri- cal system ground. Precautions should be taken so that the means of grounding of a piece of equipment is not defeated.

8.Mains voltage must be correct and the same as that printed on the rear of the unit. Damage caused by connec- tion to improper AC voltage is not cov- ered by any warranty.

9.Have gain controls on amplifiers turned down during power-up to pre- vent speaker damage if there are high signal levels at the inputs.

10.Power down & disconnect units from mains voltage before making connec- tions.

11.Never hold a power switch in the “ON” position if it won’t stay there itself!

12.Do not use the unit near stoves, heat registers, radiators, or other heat producing devices.

13.Do not block fan intake or exhaust ports. Do not operate equipment on a surface or in an environment which may impede the normal flow of air around the unit, such as a bed, rug, weather- sheet, carpet, or completely enclosed rack. If the unit is used in an extremely dusty or smoky environment, the unit should be periodically “blown free” of foreign matter.

14.Do not remove the cover. Removing the cover will expose you to potentially dangerous voltages. There are no user serviceable parts inside.

15.Connecting amplifier outputs to oscilloscopes or other test equipment while the amplifier is in bridged mode may damage both the amplifier and test equipment!

16.Do not drive the inputs with a signal level greater than that required to drive equipment to full output.

17.Do not connect the inputs / outputs of amplifiers or consoles to any other voltage source, such as a battery, mains source, or power supply, regardless of whether the amplifier or console is turned on or off.

18.Do not run the output of any amplifi- er channel back into another chan- nel’s input. Do not parallel- or series- connect an amplifier output with any other amplifier output. Crest Audio is not responsible for damage to loud- speakers for any reason.

19.Do not ground any + (“hot”) termi- nal. Never connect a + (“hot”) output to ground or to another + (“hot”) out- put!

20.Non-use periods. The power cord of equipment should be unplugged from the outlet when left unused for a long period of time.

21. Service Information E q u i p m e n t should be serviced by qualified service personnel when:

A.The power supply cord or the plug has been damaged;

B.Objects have fallen, or liquid has been spilled into the equipment;

C.The equipment has been exposed to rain;

D. The equipment does not appear to operate normally, or exhibits a marked change in performance;

E.The equipment has been dropped, or the enclosure damaged.

22.To obtain service, contact your nearest Crest Audio Service Center, Distributor, Dealer, or Crest Audio at 201.909.8700 (USA).

All Professional Series power amplifier models are UL LISTED, except for:

10001

10004

MA5850

MA7120

MA9130

Stereo Amplifier specifications

The Crest Audio Stereo Amplifier has established a notable reputation in the audio industry, particularly among professionals seeking dependable and high-performance amplification solutions. Renowned for its robustness and exceptional sound quality, this amplifier is a popular choice for both live sound applications and studio settings.

One of the standout features of the Crest Audio Stereo Amplifier is its outstanding power output, which ensures that it can drive a wide range of loudspeakers with ease. Typically available in various power ratings, these amplifiers can provide significant wattage, allowing them to handle high-demand audio situations without distortion. This makes the Crest Audio amplifier an excellent choice for large venues, theaters, and event spaces.

The design of the Crest Audio Stereo Amplifier prioritizes efficiency and performance. Utilizing high-quality components, the amplifier is constructed with a rugged chassis and offers extensive heat dissipation to ensure longevity and reliability during prolonged use. This durability is particularly crucial in professional settings where equipment is often subjected to rigorous conditions.

In terms of technology, Crest Audio amplifiers incorporate advanced circuitry that enhances audio fidelity and minimizes noise. The use of Class AB amplification technology allows for a balanced performance that delivers both output power and audio clarity. This technology enables the amplifier to produce rich, warm tones, making it particularly effective for musical genres requiring dynamic range and precision, such as classical and jazz.

Another notable characteristic of the Crest Audio Stereo Amplifier is its comprehensive protection features. These amplifiers are designed with built-in thermal, short circuit, and overload protection, ensuring that the equipment can withstand potential hazards without compromising performance. The intuitive LED indicators provide visual feedback on the status of the amplifier, allowing users to monitor operation easily.

Connectivity is another essential factor, with Crest Audio amplifiers typically featuring a variety of input and output options. This flexibility enables integration with different audio systems, whether for simple stereo setups or complex multi-channel configurations. The professional-grade speakON and binding post outputs ensure secure connections to loudspeakers, promoting optimal performance.

Overall, the Crest Audio Stereo Amplifier is a reliable, high-performance solution for any audio professional. With its powerful output, sturdy construction, advanced technology, and user-friendly features, this amplifier continues to be a top choice for delivering exceptional sound quality in various applications. Whether in a studio environment or a live concert setting, the Crest Audio Stereo Amplifier stands out as a trusted tool for achieving audio excellence.