User manual GALLIEN-KRUEGER MB2 500

[. . . ] Your purchase of a new Gallien-Krueger MB² Series amplifier is surely the result of much careful consideration on your part. For our part, we at Gallien-Krueger are pleased that you chose us, and are determined that you will be a satisfied customer. In choosing a MB² Series amplifier, you now own an amplifier with many unique features which will allow you to create your own distinct sound. To get the most out of your new purchase, please take a few minutes to read through this manual. [. . . ] If the clip light (pad button) flashes more than occasionally, press the -10db pad button in and turn the Input Volume knob up. If it is still lighting often, try turning the volume down on your bass. Boost/Master B: Engage the button located between the Boost and Master B knobs. You should be hearing your bass quite well through the Master and Master B channels. At this point you can experiment with different EQ, Contour and Boost settings. Various sample settings can also be found on page 8. Quick Start 5 MB² SERIES INPUT -10dB MUTE OFF ON POWER GAIN CONTOUR TREBLE HI-MID LOW-MID BASS BOOST OFF ON OFF ON MASTER-B MASTER Front Panel Features OFF ON CLIP G. I. V. E MB 2 500 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Front Panel Features 1 2 Input: A standard ¼" input jack to connect active or passive basses using a shielded cord. This button is generally set to the out position except in cases where the clip LED flashes more than occasionally. It may be necessary to "pad" the input if you are using a bass with active electronics or very high output. If the -10dB is pressed and the clip indicator still flashes frequently, reduce the volume on your bass. Mute: Set this switch to "on" when tuning or unplugging your bass. It is used in conjunction with the input pad to optimize the amplifier's headroom. Contour: As part of the amps active equalization the contour control decreases the mid-range frequencies while boosting low and high frequencies. A "Q Optimized, " band pass type, this works on lower string harmonics and effects the punch of your sound. A "Q optimized" band pass type, this works for main body of your sound. In the on position, the ring surrounding the button will light red during power up then changes to blue, indicating the amp is ready for normal operation. Lower impedances such as 8 Ohms or 16 Ohms and no load are acceptable. This unique speaker output allows you to use a ¼" plug or the high current, twist-lock Speakon connector. 3 4 5 6 7 8 9 10 11 7 MB² SERIES Settings & Sounds : The MB² Series is 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. *Volume settings should be adjusted to appropriate level. Sample Settings Note: At higher playing levels the contourshould be set lower for mid-range clarity. To get 800RB voicing, the contour should be set to 0 or 10 only. Slap: INPUT -10dB OFF ON Both pickups recommended. POWER BASS BOOST OFF ON OFF ON MUTE OFF ON GAIN CONTOUR TREBLE HI-MID LOW-MID MASTER-B MASTER CLIP G. I. V. E MB 2 500 Rock: INPUT -10dB OFF ON Both pickups recommended. POWER MUTE OFF ON GAIN CONTOUR TREBLE HI-MID LOW-MID BASS BOOST OFF ON MASTER-B MASTER OFF ON CLIP G. I. V. E MB 2 500 Reggae: INPUT -10dB OFF ON Front pickup recommended. POWER MUTE OFF ON GAIN CONTOUR TREBLE HI-MID LOW-MID BASS BOOST OFF ON MASTER-B MASTER OFF ON CLIP G. I. V. E MB 2 500 Jazz/Fusion: INPUT -10dB OFF ON Both pickups recommended. POWER BOOST OFF ON OFF ON MUTE OFF ON GAIN CONTOUR TREBLE HI-MID LOW-MID BASS MASTER-B MASTER CLIP G. I. V. E MB 2 500 8 MB² SERIE S Sound Tips The MB² Series has several unique features which, if used properly, will obtain the sound you have been searching for. 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 and provides you with a large variety of great sounds unique to GK. [. . . ] This is accomplished through a few, very important features: · Class D power supply and power amp. · Four, Bass specific bands of active equalization for precise tone control. Equalization: Standard tone controls and graphic equalizers give you plenty of variation, but they don't provide what the instrument really needs. The equalization in Gallien-Krueger amplifiers reflects 40 years of continuous development and refinement. [. . . ]