MB112-II - Bass Amplifier Gallien-Krueger - Free user manual and instructions
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| Product Type | Bass Amplifier Combo |
| Brand | Gallien-Krueger |
| Model | MB112-II |
| Speaker Configuration | 1x12" custom speaker |
| Power Output | 200W RMS |
| Dimensions (H x W x D) | 20" x 18" x 12" (508 x 457 x 305 mm) |
| Weight | 40 lbs (18.1 kg) |
| Power Supply | AC 100-120V / 200-240V, 50/60Hz (user-selectable) |
| Preamp | GK Proprietary with 4-band EQ (Bass, Lo Mid, Hi Mid, Treble) |
| Contour Control | Yes, active EQ contour switch |
| Inputs | 1x 1/4" instrument input (active/passive switch) |
| Outputs | XLR direct out (pre/post EQ), 1/4" line out, headphone out |
| Effects Loop | Yes, series effects loop (send/return) |
| Tuner Output | Yes, dedicated tuner out |
| Protection Features | Thermal, overcurrent, and DC protection |
| Cleaning Instructions | Wipe with a dry, soft cloth. Do not use solvents or water. |
| Safety Warnings | Do not expose to rain or moisture. Use only with grounded outlet. |
| Spare Parts Availability | Contact Gallien-Krueger authorized service centers |
| Repairability | Serviceable by qualified technicians; user-replaceable fuse |
Frequently Asked Questions - MB112-II Gallien-Krueger
What is the power output of the MB112-II?
The MB112-II delivers 200W RMS into its internal 8-ohm speaker.
Can I use the MB112-II with an extension cabinet?
Yes, the MB112-II has a 1/4" speaker output for an external 8-ohm cabinet, provided total impedance is 4 ohms minimum.
How do I connect a tuner?
Use the dedicated tuner output jack on the rear panel. The signal is muted when a tuner is plugged in.
What is the Contour control?
The Contour switch boosts lows and highs while scooping mids for a classic rock slap tone.
How do I use the XLR direct out?
Connect the balanced XLR output to a mixing console or audio interface. Use the pre/post switch to select if EQ affects the signal.
What is the voltage selector for?
The MB112-II has a user-selectable voltage switch for 100-120V or 200-240V operation. Ensure it matches your local mains before powering on.
How do I clean the amplifier?
Disconnect power and use a dry, lint-free cloth to wipe the exterior. Do not use any liquids or abrasive cleaners.
Is the MB112-II suitable for home practice?
Yes, the headphone output allows silent practice, and the power rating provides ample volume for small venues.
What type of speaker cable should I use?
Use a standard 1/4" speaker cable (not an instrument cable) for connecting to an external cabinet.
Where can I find replacement parts?
Contact Gallien-Krueger customer service or an authorized service center for genuine spare parts.
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USER MANUAL MB112-II Gallien-Krueger
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Product information
Brand : Gallien-Krueger
Model : MB112-II
Category : Bass Amplifier