User manual GALLIEN-KRUEGER BACKLINE SERIES

[. . . ] Owner's Manual Backline 350 Backline 250 Backline 600 Backline 115 Backline 210 1 Backline Seies Table of Contents Table Of Contents Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Quick Start. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Settings & Sounds. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Sound Tips. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Front & Rear Panel Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Set the A/B switch to off (Channel A). Extremely high current power supply and power amp circuitry, gets the sound out of your head. Four bass specific bands of active equalization for Precise tone control. Bass specific overdrive channel for all modern sounds. 4. Using an instrument cable, connect your bass to the Input jack and turn the power switch on, set the master control to 3 o'clock, slowly bring the Level-A volume up and play. If the clip LED flashes excessively, push the button marked - 10db in. Occasional clip light flashes while playing very hard, is normal and should not raise any concern . Do Quick Start Backline Series Settings and Sounds The Backline Series are versatile in its sound and tone. Below are a few suggested amp settings that can be used as starting points to define your own sound. Note: the Gain/Overdrive settings will vary according to the output of your bass. * Contour note: At higher playing levels the contour should be set lower for mid-range clarity. To get the 800RB contour voicing, Settings & Sounds Tube Style Grunge: Both pickups recommended. Insane Gain: Back pickup recommended. Deep Bass: Front pickup recommended. Slap: Both pickups recommended. 6 Backline Series Sound Tips The Backline Series has several unique features which, if used properly, will obtain that sound you have been searching for. The Equalizer: The Equalizer is used to fine tune your sound. These are active circuits, and small changes can make a big difference in your sound. With a little experimentation you will find that this equalizer is very easy to use, never sounds weird and provides you with a large variety of great sounds, unique to GK. Direct Out: The Backline Series provides a low noise, high quality balanced direct out for connection to PA and recording consoles. With the Pre/Post EQ switch set to "Pre" (Out), the direct output signal is fed directly from our low noise, high headroom, FET input stage providing a low noise output superior to external direct boxes and impedance transformers. The Direct Output signal is only effected by the -10dB Pad, and Tuning Mute controls. This allows you to adjust your tone and volume on stage without changing the Direct Out signal level and confusing your sound man. Changing the Pre/Post EQ switch to "Post" (In), sends the "GK sound" and preamp response to the Direct Out jack. This gives you complete control over the Direct Out's tone and volume. In addition, a Ground (Gnd) Lift switch is included to remove hum and buzz when connecting to equipment powered by a different ground system. Contour: Increasing the Contour level will scoop out mid-range frequencies while boosting the highs and lows. The sound, once again, is unique to GK and unavailable on any other Bass amp. Should the amp experience a fault (over heat, over current) the amp will mute and this LED will go red until the condition is corrected. 19-Power Switch: Sets preamp gain after the input stage. It is used in conjunction with the input pad, to optimize the amplifier's headroom. 6-Contour: Drops the mid-range frequencies while boosting lows & highs. Active Equalization: 7-Treble: Turns the amplifier on or off. This turns the amp off, but does not completely disconnect the power from the AC mains. [. . . ] Instead of responding to your every command, the amplifier simply cuts those transients off, leaving you with the feeling that something is missing in your sound. Since most amplifiers have limited output current capacity, they need "current limiting circuits" to protect against self-destruction. High-power transients trigger these circuits, which rob the amplifier of it's ability to control speaker cones. The Backline 350/210 has an extremely high current capacity, over fifty amps, so it doesn't need current limiting circuits for overload protection. [. . . ]