Protection Features

RampUp™ Signal Control

Whenever a CS® Series amplifier powers up or comes out of a protect mode, the RampUp circuit activates. While the speakers are disconnected, the RampUp circuit fully attenuates the signal and activates the DDT™ LED. After the output relay closes, the signal slowly and gradually raises up to its set level. The PWR LED will illuminate and the DDT LED will turn off when the signal is no longer attenuated. The RampUp Signal Control circuit has some important advantages over the conventional instant-on circuits:

1.If a signal is present during power-up (or when coming out of protect), the speakers are spared a sudden, potentially damaging burst of audio power.

2.Because the gain is reduced until after the output relay closes, no arcing occurs at the contacts, thereby extending their useful life.

Speaker Protection

All loudspeakers have electrical, thermal and physical limits that must be observed to prevent damage or failure. Excessive power, low frequencies applied to high frequency drivers, severely clipped waveforms, and DC voltage can all be fatal to cone and compression drivers. Peavey CS Series amplifiers automatically protect speakers from DC voltages and subsonic signals. If using an electronic crossover, be extremely careful that the low and mid bands are connected to the correct amplifiers and drivers and not to those designed for a higher frequency band. An amplifier’s clipping point is its maximum peak output power, and some of the higher powered Peavey CS Series amplifiers can deliver more power than many speakers can safely handle. Be sure the peak power capability of the amplifier is not excessive for your speaker system. For more information, see the section on Protection Features.

Fuses may also be used to limit power to speaker drivers, although as current-limiting rather than voltage-limiting devices, they are an imperfect solution, and as the weakest links, they only limit once before needing replacement. Some poor-quality fuses have a significant series resistance that could degrade the amplifier’s damping of the speaker’s motion and may even deterio- rate the system’s sound quality. If you elect to use fuses, check with the speaker manufacturer to determine the proper current rating and time lag required.

Do not drive any low frequency speaker enclosure with frequencies lower than its own tuned frequency; the reduced acousti- cal damping could cause a ported speaker to bottom out even at moderate power. Consult the speaker system specifications to determine its frequency limits.

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Peavey CS 3000, CS 4080 HZ owner manual Speaker Protection, RampUp Signal Control
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CS 4080 HZ, CS 3000 specifications

The Peavey CS 3000 and CS 4080 HZ are powerhouse amplifiers designed for professional audio applications, catering to both musicians and sound engineers who require reliability and sonic excellence. These models are a part of Peavey's renowned CS series and offer a wide array of features and technologies to enhance performance and sound quality.

The Peavey CS 3000 delivers a robust performance with a power output of 2,400 watts at 4 ohms. This amplifier is particularly favored for its ability to handle demanding workloads while maintaining clarity and precision in sound reproduction. One of the standout features of the CS 3000 is its patented Peavey DDT (Distortion Detection Technique) compression, which automatically engages when the amplifier approaches its limits. This technology helps prevent clipping, ensuring a cleaner sound even at high volumes, making it ideal for live sound applications.

The CS 4080 HZ, on the other hand, is designed for high-frequency applications, providing 4,000 watts of output. This model features advanced circuitry that enhances its performance when powering high-impedance loads. Users will appreciate the built-in crossover networks that allow for precise tuning and integration with various sound systems, making it suitable for both bi-amp and full-range applications.

Both amplifiers feature Peavey's proprietary Turbosound speaker connections, which ensure a secure and efficient signal transfer, reducing the chances of interference or signal loss during use. The rugged chassis and heat management system are engineered for optimal airflow, preventing overheating during long sessions or extensive use, which is crucial in live sound settings.

Moreover, the CS 3000 and CS 4080 HZ incorporate comprehensive protection circuitry. This not only safeguards the amplifiers from damage due to overheating or short-circuit conditions but also extends the longevity of the units. The simple front-panel controls and status indicators allow users to easily monitor performance, making adjustments quickly as needed.

In summary, the Peavey CS 3000 and CS 4080 HZ stand out for their exceptional power, innovative technology, and durability. These amplifiers are engineered to meet the rigorous demands of professional audio environments, providing reliable performance for musicians, DJs, and sound technicians alike. Whether you're setting up for a concert or managing an event, these amplifiers prove to be indispensable tools for achieving high-quality audio experiences.
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