User manual BEHRINGER HA4400

[. . . ] HA4400 Version 1. 1 January 2001 POWERPLAY PRO www. behringer. com ENGLISH Users Manual POWERPLAY PRO HA4400 SAFETY INSTRUCTIONS CAUTION: To reduce the risk of electrical shock, do not remove the cover (or back). No user serviceable parts inside; refer servicing to qualified personnel. WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture. This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure - voltage that may be sufficient to constitute a risk of shock. This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. [. . . ] 4. 1: POWERPLAY PRO front panel The BEHRINGER POWERPLAY PRO has four identical channels and provides 3 illuminated push-button switches, 2 rotary controls, 2 jacks and 4 LEDs per channel. The common main section contains 1 rotary control, 1 jack and 4 LEDs. 4. CONTROLS 9 POWERPLAY PRO HA4400 4. 1 The front panel control elements Fig. 4. 2: Controls on the front panel 1 2 3 4 The DIRECT IN stereo input is used to apply the signals coming from an external source. When using the DIRECT IN input, the MAIN signal applied on the rear panel is interrupted automatically (fig. The INPUT LEVEL control adjusts the level of the input signal inserted via the rear panel MAIN INPUT or DIRECT IN connectors. The 4-digit INPUT LEVEL meter informs you about the current input level within a range from -24 dBu to +6 dBu. The HEADPHONE OUT is connected in parallel to the rear panel output connectors, and provides an additional option to monitor the individual channels. When the unit is permanently installed in rack, this proves to be a useful function. A further input signal can be added to the MAIN and/or DIRECT IN signal via the AUX IN (fig. The L MUTE switch mutes the left input signal. This R MUTE switch mutes the right input signal. With the MONO switch each of the amplifiers can be switched between stereo to mono mode, and vice versa. The BALANCE control determines the ratio level between the MAIN/DIRECT IN signal and the input signal applied to the AUX IN input. The OUTPUT LEVEL control determines the volume of the individual amplifiers and refers to both the left and right channels. The 4-digit OUTPUT LEVEL meter informs you about the current output level within a range from -24 dBu to + 12 dBu. If the CLIP LED lights up, you have to decrease the INPUT GAIN, otherwise distortion will raise. 5 6 7 8 9 10 11 10 4. CONTROLS POWERPLAY PRO HA4400 4. 2 The elements of the rear control panel Fig. 4. 3: The control elements of the rear panel 12 FUSE HOLDER / VOLTAGE SELECTOR. Please make sure that your local voltage matches the voltage indicated on the unit, before you attempt to connect and operate the POWERPLAY PRO. Blown fuses may only be replaced by fuses of the same type and rating. Use the enclosed power cord to connect the unit to the mains. [. . . ] Free inspections and maintenance/repair work are expressly excluded from this warranty, in particular, if caused by improper handling of the product by the user. This also applies to defects caused by normal wear and tear, in particular, of faders, potentiometers, keys/buttons and similar parts. Damages/defects caused by the following conditions are not covered by this warranty: s misuse, neglect or failure to operate the unit in compliance with the instructions given in BEHRINGER user or service manuals. s connection or operation of the unit in any way that does not comply with the technical or safety regulations applicable in the country where the product is used. [. . . ]