4 channel frequency conscious noise gate operation manual june 2005.
Page 2 this page has been left intentionally blank for your notes.
Page 3 contents 1.0 overview 4 2.0 description of controls 5-7 2.1 bypass switch and led 2.2 listen switch 2.3 hi-pass control 2.4 lo-pass control 2.5 ext. Key led 2.6 threshold control 2.7 above-below leds 2.8 attack switch 2.9 range switch 2.10 release control 2.11 link switch 3.0 external connect...
Page 4 1.0 overview main features: • 4 channels of frequency conscious noise gating • variable hi and low pass side chain filters • fully variable threshold and release • fast and slow attack modes • range switching between -20db and -80db • side chain listen facility • stereo linking • side chain i...
Page 5 2.0 description of controls 2.1 bypass switch pressing bypass cancels gating by removing the side chain voltage from the voltage controlled amplifier (vca). The input-output and level change circuitry remain in the signal path. The bypass led lights when the compressor is bypassed. 2.2 listen...
Page 6 2.5 ext. Key led ext. Key lights when a jack is plugged into the side chain insert on the rear of the g400. 2.6 threshold control threshold sets the reference level at which the gate will open and allow audio through to the output. Control range is -50dbu to +20db. The side chain on the g400 ...
Page 7 2.9 range switch the range switch determines the amount of signal attenuation that occurs during gating. The g400 provides for full signal muting (-80db) or a more subtle attenuation (-20db). 2.10 release control release adjusts the speed at which the gates closes once the input signal level ...
Page 8 3.0 external connections 3.1 sidechain the side chain trs jack allows connection of an external processor such as a parametric equaliser for more sophisticated frequency conscious gating applications. External key signals are often used for gated-reverb, rhythmic and bass enhancement effects....
Page 9 the side chain insert operates at -2dbu in both +4dbu and -10dbv modes. 3.5 power mains power switch for g400 3.6 power inlet standard iec mains inlet for use with a detachable mains cable. See section 3.4 for details of power requirements and fusing. Please note: the mains protection fuse is...
Page 10 4.0 installation 4.1 inspection and unpacking the g400 has been carefully packed at our factory in a carton designed to withstand handling in transit. Should the unit appear to have been damaged in transit, notify your dealer immediately and do not discard any of the packing. The carton shou...
Page 11 please note: if the fuse requires changing at any time please ensure the correct type is fitted. An incorrect fuse could cause damage to the unit and may constitute a fire hazard. The detachable iec mains lead connections to the appliance are coloured in accordance with the following code: g...
Page 12 5.0 warranty your la audio g400 has been manufactured to a high standard using quality components. If correctly installed and operated the unit should give years of problem free operation. However in the event of a defect in material or workmanship causing failure of the unit within 1 year o...
Page 13 6.0 technical specifications electrical frequency response: 20hz to 20khz (+0, -0.5db) input impedance: 20k balanced maximum input level: +20dbu input-output level: +4dbu or -10dbv output impedance: 100r balanced max. Output level: +20dbu thd: signal to noise ratio: > 90db, +4dbu out, 22hz- ...
Page 14 7.0 dimensions in keeping with our policy of continuous improvement la audio reserves the right to alter specifications without prior notice. Manufactured in the uk by la audio web: www.Laaudio.Co.Uk..
