User manual PEAVEY CS 400

[. . . ] Before using this apparatus, read the operating guide for further warnings. WARNING: When using electrical products, basic cautions should always be followed, including the following: Do not use this apparatus near water. Do not block any of the ventilation openings. install in accordance with manufacturer's instructions. [. . . ] also , as an extra precaution , have the attenuators turned down during power-up. Although the CS 3000/4000/4080 HZ amplifiers have RampUpTM circuitry, which raises the signal level gradually after the output relay closes, it is always a good idea to have the gain controls turned down during power-up to prevent speaker damage if there is a high signal level at the inputs. Consult the Wire Gauge Charts (page 9) to determine proper gauges for differing load impedances and cable lengths. Cable resistance robs amplifier power in two ways: power lost directly to resistance (I2R loss) and by increasing the impedance of the load presented to the amplifier, thereby decreasing the power demanded of the amplifier. The inputs are actively balanced and the overload point is high enough to accept the maximum output level of virtually any signal source. connecting Outputs All models have two output (speaker) connections per channel. Cables can be connected with banana plugs, spade lugs or bare wire to the five-way binding posts. Connecting Power CS Series amplifier power requirements are rated at 1/8 power (typical music conditions) and 1/3 power (extreme music conditions). The maximum power current draw rating is limited only by the front panel circuit breaker. consult the specifications in the Appendices section for figures on the current that each amplifier will demand. Unless otherwise specified when ordered, Peavey amplifiers shipped to customers are configured as follows: North America South America 120VAC / 60Hz 230/240VAC / 60-50Hz 120VAC / 60Hz or 240VAC / 50Hz Europe, Asia, Australia - Note: Always turn off and disconnect the amplifier from mains voltage before making audio connections. These LED indicators inform the user of each channel's operating status and warn of possible abnormal conditions. SIG LED (2) The Signal LED illuminates when its channel produces an output signal of greater than 1 volt RMS or 25 mV input with a 0 dB attenuation of the front panel knobs. This is useful in determining whether a signal is reaching and being amplified by the amplifier. If the Signal LED is illuminated but no sound is present, that means a signal is present at the amplifier but a problem may exist after the amplifier, such as in the cables or speakers. dDT LED (3) A channel's DDT LED will illuminate at the onset of clipping. If the LEDs are flashing quickly and intermittently, the channel is just at the clip threshold, while a steady, bright glow means the amp is clip limiting, or reducing gain to prevent severely clipped waveforms from reaching the speakers. 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. 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. [. . . ] 2% @ 1, 500 watts N/A per channel from 20 Hz to per channel from 20 Hz to 20 kHz 20 kHz <0. 1% @ 925 watts per channel from 20 Hz to 20 kHz <0. 1% @ 600 watts per channel from 20 Hz to 20 kHz > - 55 dB @ 1 kHz x 40 (32 dB) > -55 dB @ 1 kHz at rated power @ 8 ohms > -109 dB, "A" weighted referenced to rated power @ 8 ohms 1% @ 1, 650 watts per channel from 20 Hz to per channel from 20 Hz to 20 kHz 20 kHz <0. 1% @ 750 watts per channel from 20 Hz to 20 kHz > - 75 dB @ 1 kHz x 40 (32 dB) > -70 dB @ 1 kHz at rated power @ 8 ohms > -108 dB, "A" weighted referenced to rated power @ 8 ohms <0. [. . . ]