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B300H FRONT PANEL
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1. Bass Input: ¼" two-conductor jack
2. -10 dB pad: Reduces input sensitivity for use with active electronics basses or high output pickups
3. Gain: Adjusts the level of preamp input gain
4. Clipping Light: Lights in red when hi gain creates preamp clipping
5. Compression Indicator Light: Indicates the level of compression when the compressor is engaged (6)
6. Compressor On/Off: Engages compression circuitry when button is depressed
7. Overdrive: Controls the amount of overdrive
8. On/Off Switch: Activates the Overdrive circuit
9. Overdrive Level: Controls the mix of overdrive to clean signal
10. Volume: Adjusts the overall volume level of the amplifier
11. Notch: Adjusts the -10dB notch frequency from 50Hz to 1kHz.
12. Shape: This button decreases the level of the mid frequencies creating an alternate EQ curve
13. Equalizer: These 6 knobs increase or decrease the level of the associated frequency.
14. Power Switch: When lit, the amplifier is on and ready for use.
B300H BACK PANEL
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1. AC power connection and Fuse: Connect included IEC power cable here. Fuse cap contains fuse for circuit protection
2. Speaker Out: ¼" speaker jack for attaching external speaker (minimum 4 Ohm total load)
3. Speaker Out: ¼" speaker jack for attaching external speaker (minimum 4 Ohm total load)
4. Direct Output: XLR direct balanced output connector jack
5. Pre/Post EQ Switch: Switches Balanced Output between pre and post EQ operation
6. Effects Return: ¼" two-conductor jack returns signal from an external effects or signal processing device
7. Effects Send: ¼" two-conductor jack sends signal to an external effects or signal processing device
8. Ground Lift: Lifts the ground from the XLR direct output. Useful for eliminating hum when the direct out is used
9. Direct Output Level: Adjusts the level of the direct output signal
10. Link In: Input from another B300H or B800H amp head. Allows user to run the B300H in Slave Mode controlled from another amp head.
This allows the user to link 2 heads together for more power and speakers controlled from one master amplifier.
11. Link Out: Output to another B300H or B800H amp head. Allows user to run the B300H in Master Mode to control another amp head.
This allows the user to link 2 heads together for more power and speakers controlled from one master amplifier
12. Footswitch: ¼" Tip, Ring, Sleeve jack for attaching optional 2 button footswitch. Controls Overdrive On/Off and Effects Loop On/Off
9779 260MKII B300H B800H B115MKII B410MKII B810MKII Owner's Manual.indd 5
260 MKII, B300H, B800H, B115 MKII, B410 MKII, B810 MKII
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OWNER'S MANUAL
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www.acousticamplification.com
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7/13/12 4:21 PM
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