Musical Instrument Amplifier User Manual

OWNER’S GUIDE

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OWNER’S GUIDE
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B-15R PORTAFLEX Thank you for selecting the Ampeg B-15R Portaflex Bass Amplifier. Revived from the past and enhanced for the present, this limited production model offers all of the best features of the 1960’s classic plus more. In order to get the most out of your new amplifier, please read these instructions before its use.
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B-15R PORTAFLEX THE FRONT PANEL: 3 1 2 4 5 1,2: INPUT JACKS: Connect the signal cable from your instrument to either of these jacks: if your bass has active electronics, its output may be “hotter” than normal – the -15dB jack is padded to accommodate such signals. If your bass has normal pickups, use the 0dB jack. 3,4: ULTRA HI / ULTRA LO BOOSTS: Engage these pushbutton switches to boost the highs or lows as desired. These switches activate the boosts at their “in” positions.
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B-15R PORTAFLEX TECHNICAL SPECIFICATIONS: OUTPUT POWER RATING 100 watts @ 5%THD, 8 ohm load, 120VAC SPEAKER SIZE AND RATING Ampeg Vintage 15”, 8 ohm, 150 watt, 2” voice coil, 56 oz magnet High Efficiency Piezo Tweeter, 8 ohm, 150 watt (w/network) CROSSOVER FREQUENCY 3kHz ULTRA HIGH SWITCH 6dB Boost @ 4kHz ULTRA LOW SWITCH 10dB Boost @ 40Hz BASS CONTROL 25dB Range @ 40Hz MID CONTROL 34dB Range @ 200, 400, 900, 1.5k or 2.