MB 500 OWNER’S MANUAL
MB 500 Introduction Congratulations! Your purchase of a new Gallien-Krueger MB 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 MB Series amplifier, you now own an amplifier with many unique features which will allow you to create your own distinct sound.
MB 500 Table Of Contents *All Features and specifications are subject to change without notice Please read the Safety Information section on page 4 and installation instructions on page 12 before continuing. Gallien-Krueger 2234 Industrial Drive Stockton, CA 95206 phone: 209.234.7300 fax: 209.234.8420 email: info@gallien-krueger.com internet: www.gallien-krueger.com Warning! This amplifier is capable of producing high sound pressure levels.
MB 500 Safety Information Safety Information AC Power Cord: To avoid safety hazards, use only the power cord supplied with your unit. If a replacement cord is needed, make certain to use a standard IEC compliant cord. Damaged power cords should be replaced immediately. When setting up, make certain that the AC plug is easily accessible. If you do not intend to use the amplifier for a considerable length of time, disconnect the plug from the AC Mains Socket. Do not use an extention cord.
MB 500 Quick Start The MB 500 amplifier is designed to be simple to operate. All controls have a well defined purpose. These directions will take you through the basics and give you a good start for setting up your sound. 2. Connect your cabinets: Connect your speaker cabinets to the amplifier outputs marked Speaker. Use a two conductor or the GK 4 conductor Speakon cable only. Maximum Recommended Speaker Loads: One 4 Ohm, or two 8 Ohm cabinets. 3.
MB 500 15 Front Panel Features INPUT POWER -10dB MUTE OFF ON OFF ON GAIN CONTOUR TREBLE HI-MID LOW-MID BASS BOOST MASTER-B MASTER OFF ON OFF ON CLIP G.I.V.E MB 500 1 2 3 4 5 6 8 7 9 10 11 12 13 14 Front Panel Features 1 2 3 4 5 6 7 8 Input: A standard ¼” input jack to connect active or passive basses using a shielded cord. -10 dB Pad/Clip indicator: Input attenuator button.
MB 500 FULL POWER 580W PATCH BAY DIRECT OUT GND EQ PRE LIFT POST FT. SWITCH TUNER RETURN FX SEND HEADPHONES (1) L IN E O U T/ C HA I N O U T ( 2 ) 1 2 AC INPUT 500 WATTS @ 4 OHMS SPEAKER 12 0 V / 6 0 H z CLA SS 2 WI RING 1 2 3 4 6 5 7 8 9 10 11 Rear Panel Features 1 2 3 4 5 6 7 8 9 AC Receptacle: The detachable power cord plugs in here.
MB 500 Settings & Sounds: Sample Settings The MB 500 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. It is recommended that the limiter is used for during high volume applications. Note: At higher playing levels the contour should be set lower for mid-range clarity. To get 800RB voicing, the contour should be set to 0 or 10 only.
MB 500 Sound Tips included to remove hum and buzz when connecting to equipment powered by a different ground system. The Equalizer: The Equalizer is used to fine tune your sound. When adjusting making adjustments, do it just a little at a time. 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.
MB 500 Installation Installation: To insure proper operation and to avoid potential safety hazards, place the unit on a firm, level surface. Maintenance: Your new amplifier is rugged. It was built to give you a lifetime of trouble free operation if it is operated in accordance with the instructions contained in this manual. The only maintenance required is cleaning. If you are going to move your amplifier around frequently, we recommend a road case to protect it from scratches and road wear.
MB 500 Tech Talk Characteristics of the MB 500: The MB 500 is a flexible, state-of-the-art amplifier designed to deliver maximum performance while remaining small, lightweight and simple to operate. 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. Cool Running = Reliability: To cool the amp when its being driven hard, we’ve designed a temperature sensitive fan cooling system.
Block Diagram G.I.V.E. GAIN MB 500 SPECS Output Power: Noise: 350W @ 8 Ohms 500W @ 4 Ohms -90 dB reference to 500W/350W, “A” Weighted Cooling: Variable Speed Fan Input Section: Maximum Input Level With -10dB pad Input Impedance Send Output Impedance Return Input Impedance Tuner Output Impedance Direct Output Impedance 0.6V Rms 1.6V Rms 1M Ohms 220 Ohms 50K Ohms 10K Ohms 500 Ohms Amplifier Protection: Full short circuit, thermal and RF protection. Stable into reactive and mismatch loads.
