User manual BEHRINGER XR4400

[. . . ] XR4400 Users Manual Version 1. 1 April 2001 E ENGLISH MULTIGATE PRO ® www. behringer. com MULTIGATE PRO XR4400 SAFETY INSTRUCTIONS CAUTION: To reduce the risk of electric 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 electric 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 enclosurevoltage 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. [. . . ] 3. 2: Different plug types + Never use unbalanced XLR connections with microphone cables, as this would short-circuit any phantom power transmitted over these cables!4. 1: MULTIGATE PRO front panel The BEHRINGER MULTIGATE PRO has four channels. Each of these channels is equipped with 3 or 4 pushbuttons, 6 rotary controls and 11 LEDs. 4. 1 The front panel control elements Fig. 4. 2: Control elements on the front panel 1 2 3 4 The FREQUENCY control determines the lower limit frequency of the sidechain filter, and covers a range from 100 Hz to 10 kHz. The BANDWIDTH control determines the slope or bandwidth of the sidechain filter. The bandwidth can be set within a range from 2. 3 to 0. 7 octaves, so as to realize even extremely narrow-band filter settings. The MONITOR switch establishes a link between the sidechain control signal and the audio output. As it also mutes the audio input signal the user can pre-monitor the parametric filter output, which makes it easier to tune the filter by ear. Please note that the MONITOR switch disables the channels audio signal. Use the THRESHOLD control to set the threshold point of the expander/gate function within a range from BYPASS to +10 dBu. When the signal drops below the threshold, the hold/release function starts reducing the signal to a level adjustable with the RANGE/RATIO control. Please note that the MULTIGATE PRO enters bypass mode, when the THRESHOLD control is set to its left stop position, i. e. all processing functions are disabled and the signal is routed directly from the input to the output. + 5 + 12 4. CONTROLS MULTIGATE PRO XR4400 6 This traffic light LED chain shows the current operating mode of the unit: the + LED (red) indicates that the sidechain signal is below the threshold, the HOLD LED (yellow) informs you that the hold circuit/release process has been activated, while the - LED (green) shows that the sidechain signal is above the threshold. The HOLD control determines the delay applied to the starting point of the release process, after the signal has dropped below the threshold. This process begins after the end of the hold phase and ends when the gain reduction adjusted with the RANGE control is achieved. The MODE switch is used to set the operating mode of the respective channel. When the switch is out, the corresponding section works as an ultra-fast gate. In this mode, even percussive signals can be processed without any signal loss. With the MODE function on, the IRC expander (Interactive Ratio Control) is activated. This interactive control function allows for the program-dependent expansion of complex signals. Both the attack time and the fade-out characteristics (ratio) vary depending on the program material. [. . . ] To obtain warranty service, the buyer (or his authorized dealer) must call BEHRINGER (see enclosed list) during normal business hours BEFORE returning the product. Subsequently, the product must be returned in its original shipping carton, together with the return authorization number to the address indicated by BEHRINGER. Warranty services will be furnished only if the product is accompanied by a copy of the original retail dealers invoice. Any product deemed eligible for repair or replacement by BEHRINGER under the terms of this warranty will be repaired or replaced within 30 days of receipt of the product at BEHRINGER. [. . . ]