Protection Features

The Peavey CS® Series incorporates several circuits to protect the amplifier and speakers under virtually any situation. Peavey has made the amplifiers as foolproof as possible by making them immune to short and open circuits, mismatched loads,

DC voltage and overheating. If a channel goes into the DDT™ gain reduction mode, the DDT LED illuminates. The clipping percentage or output power is instantly reduced. When a problem occurs that causes a channel to go into a protection mode, the PWR (Power) LED for that channel will turn off. DC voltage on the output or excessive subsonic frequencies will cause the speaker protection relay for that channel to open, protecting the speakers. If an amplifier channel overheats, the relay for that channel will open, disconnecting the load until the channel cools down, thus protecting the amplifier.

Distortion Detection Technique Limiting

Any time a channel is driven into hard, continuous clipping, the DDT circuit will automatically reduce the channel gain to a level just slightly into clipping, guarding the speakers against the damaging, high-power, continuous square waves that may be produced. Situations that may activate the DDT circuit include uncontrolled feedback, oscillations, an improper equipment setting or malfunction upstream from the amplifier. Normal program transients will not trigger DDT; only steady, excessive clipping will cause the DDT LED to illuminate.

LFC Impedance Sensing

CS Series amplifiers feature innovative circuitry for safe operation into any load. When an amplifier senses a load that overstresses the output stage, the Load Fault Correction circuit adjusts the channel gain to a safe level. Extreme load fault under high power levels will cause the speaker relay to disconnect the load for the associated channel. This method of output stage protection is far more effective than the standard limiting found on conventional power amplifiers. The LFC circuit is sonically transparent in normal use and unobtrusive when activated.

Thermal Protection

The internal fans will keep the amplifier operating well within its intended temperature range under all normal conditions. If a channel’s heat sink temperature reaches 85°C (which may indicate an obstructed air supply), that channel will independently protect itself by opening the speaker relay to disconnect the load until it has cooled. During this time, the PWR LED will go out and the cooling fans will continue operating at high speed.

Short Circuit

If an output is shorted, the LFC and thermal circuits will automatically protect the amplifier. The LFC circuit senses the short circuit as an extremely stressful load condition and attenuates the signal, protecting the channel’s output transistors from over-current stress. If the short circuit remains, the channel may eventually thermally protect itself by opening the speaker relay thereby disconnecting the load.

DC Voltage Protection

If an amplifier channel detects DC voltage or subsonic frequencies at its output terminals, the speaker protection relay for that channel will open, protecting the speakers.

Turn-On/Turn-Off Protection

Upon powering up, the amplifier mutes the input signals and stays in Protect mode with the speaker connect relays open for approximately four seconds. This allows the internal power supplies to charge and the amplifier to stabilize. After the relays engage, the signals slowly increase from muted to their normal level. Also, when power is removed, the input signals are muted so that no thumps or pops are heard.

4080, 3000, 4000 specifications

The Peavey 4000 is a high-performance audio mixing console that has gained popularity among professional audio engineers and musicians alike. Renowned for its robust construction and versatile features, the Peavey 4000 stands out in live sound settings, recording studios, and mobile applications.

One of the main features of the Peavey 4000 is its extensive input capability, with up to 32 channels available. Each channel is equipped with a microphone preamp that delivers clear and precise audio while allowing for a wide frequency response. This ensures that both vocals and instruments can be captured with fidelity, providing an optimal foundation for any audio mix. Additionally, the console includes both XLR and line input options, making it compatible with various audio sources.

The Peavey 4000 also boasts a comprehensive EQ section. Each channel features a three-band EQ, complete with sweepable mid-range frequency control, which empowers users to fine-tune their sound with precision. This flexibility is crucial for tailoring the audio to suit different environments and applications, whether it be a live performance or studio recording.

Built-in effects processing is another standout feature of the Peavey 4000. The console includes a digital effects processor that offers a variety of effects types, such as reverb, delay, and chorus. This allows users to add depth and character to their sound without requiring additional outboard gear. The intuitive interface makes it easy to navigate and apply effects, enhancing workflow during live performances or recording sessions.

Durability is paramount in an audio mixing console, and the Peavey 4000 is constructed with rugged materials designed to withstand the rigors of frequent transportation and use. The solid chassis ensures stability even in challenging environments, while the high-quality faders and knobs are built to endure extensive manipulation.

The Peavey 4000 also provides comprehensive routing capabilities, featuring multiple auxiliary sends, subgroups, and direct outs. This flexibility allows users to create complex mixes while seamlessly integrating external gear, such as monitors and recording devices. In addition, the console features a clear and organized layout, making it accessible for both seasoned professionals and less experienced users.

In summary, the Peavey 4000 is a powerful mixing console that combines versatility, durability, and advanced features. With its exceptional sound quality, extensive EQ options, built-in effects, and rugged construction, it is well-suited for a wide range of audio applications, making it a trusted choice for audio engineers and performers.