User Manual MULTIGATE PRO XR4400 Reference-Class 4-Channel Expander/Gate
MULTIGATE PRO XR4400 User Manual Table of Contents Important Safety Instructions....................................... 3 Legal Disclaimer.............................................................. 3 Limited warranty............................................................. 3 1. Introduction................................................................ 4 1.1 Technical background........................................................ 4 2. The Design Concept.......................................
MULTIGATE PRO XR4400 User Manual Important Safety Instructions Terminals marked with this symbol carry electrical current of sufficient magnitude to constitute risk of electric shock. Use only high-quality professional speaker cables with ¼" TS or twist-locking plugs pre-installed. All other installation or modification should be performed only by qualified personnel.
MULTIGATE PRO XR4400 User Manual 1. Introduction With the BEHRINGER MULTIGATE PRO you purchased a dynamics processor of the high-end class designed to meet highest requirements: professional recording, broadcast and television studios, CD and digital production facilities, etc.
MULTIGATE PRO XR4400 User Manual The principal function used in these devices is dependent on an automatic gain control as mentioned in the previous section, which reduces the amplitude of loud passages and therefore restricts the original dynamics to a desired range. This application is particularly useful in microphone recording techniques, to compensate for level changes which are caused by varying microphone distances.
MULTIGATE PRO XR4400 User Manual 2. The Design Concept ◊ If the unit is damaged, please do not return it to us, but notify your 2.1 High quality components and design The philosophy behind BEHRINGER products guarantees a no-compromise circuit design and employs the best choice of components. The operational amplifiers NJM4580 which are used in the MULTIGATE PRO, are exceptional. They boast extreme linearity and very low distortion characteristics.
MULTIGATE PRO XR4400 User Manual Fig. 4.1: MULTIGATE PRO front panel Unbalanced ¼" TS connector strain relief clamp sleeve tip 4. Controls The BEHRINGER MULTIGATE PRO has four channels. Each of these channels is equipped with 3 or 4 push-buttons, 6 rotary controls and 11 LEDs. 4.1 The front panel control elements (4) (6) (11) (12) (8) (9) (10) sleeve (ground/shield) tip (signal) Balanced ¼" TRS connector strain relief clamp sleeve ring tip (1) (2) (3) (5) (7) Fig. 4.
MULTIGATE PRO XR4400 User Manual ◊ The HOLD control is enabled in GATE mode only! (8) The RELEASE control determines the time of the release process. This process begins after the end of the hold phase and ends when the gain reduction adjusted with the RANGE control is achieved. The setting range of the RELEASE control is from 0.05 to 4 seconds. ◊ The RELEASE control is enabled in GATE mode only! (9) The MODE switch is used to set the operating mode of the respective channel.
MULTIGATE PRO XR4400 User Manual The following chapter describes the interactive control functions in full detail: 5.2.1 THRESHOLD control The THRESHOLD control determines the threshold point and disables the respective channel. As it covers a very wide setting range it can be easily adapted to any operating level: Input levels above the adjusted threshold point pass the circuit unprocessed. However, as soon as the input signal drops below the threshold, dynamics processing sets on.
MULTIGATE PRO XR4400 User Manual 5.4 The SIDECHAIN filter Each channel has a parametric filter whose frequency and quality (bandwidth) can be set precisely. This tunable filter allows you to select and fade out specific frequencies that would otherwise lead to unwanted triggering of the expander circuit. output gain 0 dB threshold 5.4.
MULTIGATE PRO XR4400 User Manual Adjust all controls and switches to the following basic settings: Control elements Position MONITOR switch SC FILTER switch THRESHOLD switch HOLD control RELEASE control MODE switch RANGE/RATIO control OUT OUT fully clockwise center position center position GATE fully counter-clockwise Tab. 6.
MULTIGATE PRO XR4400 User Manual 6.3 Applications 6.3.1 Suppressing crosstalk in multi-track applications One of the most frequent applications of an expander/gate is the elimination of unwanted crosstalk between single channels during recording or playback. In particular, when recording acoustic drum sounds, this type of application is frequently used, because here several microphones closely positioned next to each other are used.
MULTIGATE PRO XR4400 User Manual Function Switches Monitor monitors the side-chain key signal Filter activates the side-chain filter Mode gate/expander switch Couple activates the FlexLink function Indicators “+” indicator signal is below threshold “Hold” indicator signal reaches the threshold “-” indicator signal is above threshold Gain Reduction 8-segment LED display: 1/3/6/10/15/20/30/40 dB LED indicator for each function switch Power Supply Mains Voltages USA/Canada 120
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