AMPEG B50R User Guide

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1. Input accepts a standard 1/4” instrument
plug from your bass.
3. Volume controls the overall output level of the amplifier and the level of the signal at the Headphones jack (#2).
4. Bass adjusts the output level of the low frequencies and offers a cut or boost of 12dB at 60Hz.
5. Low Mid adjusts the output level of the lower midrange frequencies and offers a cut or boost of 11dB at 200Hz.
6. High Mid adjusts the output level of the upper midrange frequencies and offers a cut or boost of 11dB at 1.2kHz.
7. Treble adjusts the output level of the high frequencies and offers a cut or boost of 13dB at 5kHz.
8. Power light indicates the amplifier is turned on by glowing an iridescent blue color.
9. Power switch is used to turn the amplifi­er on and off.
10. Line Out (rear panel, not shown) sup­plies a mono, unbalanced signal for con­necting to a mixing console, tape recorder or external amplifier. (By using a TRS plug the signal is balanced – tip is “+”, ring is “-”.)
11. Power cord (rear panel, not shown)
connects the amplifier to a suitable source of A.C. voltage. This is a grounded, three-wire cord and must be connected to a properly grounded outlet. DO NOT attempt to
defeat the ground connection of the power cord! If your amp was purchased
outside of the United States, see the sticker next to the A.C. connector for its power rat­ings. Follow the above guidelines.
Thank you for selecting the Ampeg Rocket Bass amplifier. Inspired by the classic Ampeg bass amps of the sixties, this easy-to-use amplifier represents Ampeg’s quest to provide you the finest instrument amplification systems available. In order to get the most out of your new amplifier, please read these instructions before its use.
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