Instruction/ maintenance manual of the product B328 Ampeg
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Owner ’ s Guide for the B3 / B328 / B3158 Bass Amplifier Made in the U.S.A. by.
2 T ABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Important Safeguards and Precautions . . . . . . . . . .2 The Front Panel Controls and Their Use .
3 The Front Panel Controls and Their Use MASTER -12dB 0 +12dB 5kHz 8kHz 900Hz 2kHz 300Hz 150Hz 600Hz 40Hz 80Hz -15dB PAD PEAK ON LIMIT GAIN DRIVE BASS UL TRA MID TREBLE INPUT PULL EQ ON LO FLAT HI EQ ON BALANCE LOW HIGH 1 2 8 7 6 5 4 10 9 11 3 12 14 15 13 B3/B328/B3158 Bass Amplifier 1.
4 The Front Panel Controls and Their Use The Rear Panel CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN AVIS: WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, SO NO EXPOSE THIS EQUIP- MENT TO RAIN OR MOISTURE. RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR SPEAKERS EFFECTS LOOP BAL.
5 21. PRE/POST SWITCH: Y ou can select either pre or post-EQ for the signal at the Balanced Out jack (#23) with this switch. With the switch in the OUT position, the sig- nal at the jacks will be pre-EQ. This is a direct output which is not affected by any EQ or boost settings.
6 GAIN DRIVE BASS UL TRA MID TREBLE GAIN DRIVE BASS UL TRA MID TREBLE GAIN DRIVE BASS UL TRA MID TREBLE GAIN DRIVE BASS UL TRA MID TREBLE Some Suggested Settings* JAZZ: ROCK: COUNTR Y : FUNK “POPPING:” B3/B328/B3158 Bass Amplifier The setting of the Gain control depends on your particular instrument.
7 T roubleshooting In the unlikely event that your B3/B328/B3158 should malfunction, take a few minutes to troubleshoot it before you call for service. Y ou can save yourself time and money by doing it yourself, and often the cure for the problem is something quite simple.
Ampeg reserves the right to change specifications without notice. Ampeg is proudly Made in America. © 1999 SLM Electronics, 1400 Ferguson Avenue, St. Louis, MO 63133 U.
An important point after buying a device Ampeg B328 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Ampeg B328 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Ampeg B328 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ampeg B328 you will learn all the available features of the product, as well as information on its operation. The information that you get Ampeg B328 will certainly help you make a decision on the purchase.
If you already are a holder of Ampeg B328, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Ampeg B328.
However, one of the most important roles played by the user manual is to help in solving problems with Ampeg B328. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ampeg B328 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center