User manual PEAVEY CS 3000H

[. . . ] For more information on other great Peavey products, go to your local Peavey dealer or online at www. Intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. CAUTION: To reduce the risk of electric shock, do not remove cover. WARNING: To prevent electrical shock or fire hazard, do not expose this appliance to rain or moisture. [. . . ] The recommended minimum nominal load impedance in the bridged mode is 4 ohms (equivalent to driving both channels at 2 ohms). Driving bridged loads of less than 4 ohms will activate the DDT circuitry resulting in a loss of power, and may also cause a thermal overload. If the switch shuts off during normal use, push it back to the ON position once. If it will not stay on, the amplifier needs servicing. input Attenuators (2) Whenever possible , set the attenuators fully clockwise to maintain optimum system headroom. The input attenuator controls (one for channel A, one for channel B) located at the front panel adjust gain for their respective amplifier channels in all modes. see the specifications at the end of this manual for standard voltage gain and input sensitivity information. When operating in the bridged mode, both attenuators must be in the same position so the speaker load will be equally shared between the channels. These LED indicators inform the user of each channel's operating status and warn of possible abnormal conditions. This amplifier also features two 10-segment bar graph indicators per channel: SIGNAL . SIGNAL LED (3) This LED is at the bottom of the bar graph display and lights when its channel produces an output signal of greater than 2 volts RMS or 50mV input with a 0 dB attenuation of the front panel knobs. It is useful in determining whether a signal is reaching and being amplified by the amplifier. the 10segment graphs indicate the level of signal present. DC LED (4) The DC LED lights to indicate that the channel's output relay is open, disconnecting the speaker(s) when the amplifier senses a DC voltage or subsonic high level signal at its output. tEMP LED (5) The Temp LED lights to indicate that the channel's output relay is open , disconnecting the speaker(s) due to an overheating condition. Once the channel temperature has returned to safe operating conditions the LED will turn off and the speaker(s) will be reconnected. This connector allows patching the frequencies above the crossover knob setting to a secondary amplifier. This output remains at low frequencies independent of the MODE switch setting. Protection Features The CS3000H incorporates several circuits to protect both itself and loudspeakers under virtually any situation. Peavey has attempted to make the amplifier as foolproof as possible by making it immune to short and open circuits, mismatched loads, DC voltage, and overheating. If a channel goes into the Distortion Detection or DDT gain reduction mode, the speaker load remains connected, but clipping percentage or output power are instantly reduced. When a problem occurs that causes a channel to go into a protection mode, the TEMP LED or DC LED for that channel will glow. [. . . ] Caution: The input level controls for both the A and B channels need to be set identically for the amplifier to operate properly. Two Channel Mono--Parallel Mode (with single channel input) Set channel A LOW CUT frequency adjustment knob 4 to match the low frequency cut-off or the -3 dB down point of the sub woofer. (If you don't know this specification, set it for 40 Hz. Plug a short shielded cable into the high pass/full range output of channel A Connect the other end of the same cable to the channel B input Connect the Mono program signal to the channel A input Two ACL (clip limiting), two signal presence, two active status, two DC protect, two temperature limit Steel with cast aluminum front panel and handles 6 kg) All power measurements made at 120 VAC, power transformer cold. [. . . ]