MB 500 - Uncategorized Gallien-Krueger - Free user manual and instructions
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| Product Type | Bass Amplifier Head |
| Brand | Gallien-Krueger |
| Model | MB 500 |
| Power Output | 500W RMS at 4 ohms |
| Channels | 2 (Channel 1 with Gain, Channel 2 with Boost) |
| EQ Section | 4-Band Active EQ (Bass, Lo Mid, Hi Mid, Treble) with Contour |
| Speaker Outputs | 1 x Speakon, 1 x 1/4" (both parallel) |
| Input | 1 x 1/4" active/passive |
| Effects Loop | Series FX Loop (send/return 1/4") |
| Dimensions | 8.5" x 8.5" x 2.5" (21.6 x 21.6 x 6.4 cm) |
| Weight | 4.8 lbs (2.2 kg) |
| Power Supply | 100-240V AC, 50/60Hz (internal switching) |
| Power Consumption | 150W max |
| Cooling | Fan-cooled, variable speed |
| Construction | Aluminum chassis, steel casing |
| Warranty | 2 years limited |
Frequently Asked Questions - MB 500 Gallien-Krueger
What is the power output of the Gallien-Krueger MB 500?
The MB 500 delivers 500 watts RMS at 4 ohms or 300 watts at 8 ohms, suitable for most bass cabinets.
How do I connect the MB 500 to a speaker cabinet?
Use either the Speakon or 1/4" output (both are parallel). Ensure the cabinet impedance is at least 4 ohms.
Can I use the MB 500 with an active bass?
Yes, the input accepts both active and passive basses. For active basses, set the input switch to 'Active' if available, or use a lower gain setting.
What do the Contour and Boost controls do?
The Contour is a fixed EQ curve that scoops mids. The Boost on Channel 2 adds gain for a more aggressive tone.
How do I use the effects loop?
Connect your effects pedal's output to the FX Send and input to the FX Return. The loop is series, so it affects the entire signal.
Is the MB 500 rack-mountable?
Yes, it is a half-rack size (8.5" wide) and can be mounted with an optional rack kit.
What type of cooling does the MB 500 have?
It uses a variable-speed fan that adjusts to temperature. Keep ventilation slots clear.
Can I use the MB 500 with a bass cabinet below 4 ohms?
No, the minimum impedance is 4 ohms. Using a lower impedance may cause overheating or damage.
How do I clean the MB 500?
Unplug the unit and wipe the exterior with a damp cloth. Do not use solvents. Clean ventilation grilles with a soft brush.
What is the warranty period for the MB 500?
Gallien-Krueger offers a 2-year limited warranty covering defects in materials and workmanship.
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USER MANUAL MB 500 Gallien-Krueger
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Product information
Brand : Gallien-Krueger
Model : MB 500
Category : Uncategorized