Instruction/ maintenance manual of the product B-200R Ampeg
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T able of Contents: Introduction .............................................................................................3 The Front Panel ...................................................................................4,5 Important Information About T ubes and T ube Products A Brief History Of The T ube .
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 this user ’s guide prior to its use.
1. 0dB Input accepts a standard 1/4” instrument plug from your bass. This input is suited for use with instruments that have passive electronics. 2. -15dB Input accepts a standard 1/4” instru- ment plug from high output basses.
13. Master controls the overall output level of the amplifier . 14. XLR Line Out supplies a mono line level sig- nal for connecting to a mixing console, tape recorder or external amplifier . The signal at this jack is pre-Master and post-EQ. 15. Phones allows the connection of a pair of stereo headphones for private practice ses- sions.
Important Information About T ubes and T ube Products: 6 A Brief History Of The T ube: In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Y ears later , in 1905, Fleming expanded on Edison's discovery and creat- ed the "Fleming V alve".
Important Information About T ubes and T ube Products (continued): 7 Preamp T ube T ypes And Usage: The tubes used in the preamplifier (12AX7, 12AU7, 12A T7, etc.) amplify the signal from your instrument and shape the sound. They are inherently microphonic (mechanically pick up and transmit external noises).
Important Information About T ubes and T ube Products (continued): 8 The Nature Of T ubes: Why (And When) T o Replace Them: T ubes are made up of a number of fragile mechanical components that are vacuum-sealed in a glass envelope or bubble.
Important Information About T ubes and T ube Products (continued): 9 Survival T ips For T ube Amplifiers: T o prolong tube life, observe these tips and recommendations: • After playing the amplifier , allow sufficient time for it to properly cool down prior to moving it.
10 System Block Diagram: 0dB INPUT -15dB INPUT ULTRA LOW MASTER LINE OUT/ HP LEVEL 12AU7 TUBE LIMITER WITH HORN WITHOUT HORN XO POWER AMP LF SPEAKER HEAD PHONES BAL.
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B-200R TECHNICAL SPECIFICA TIONS: OUTPUT POWER RA TING 220 W atts RMS, 4 ohm load, 5% THD, 120 V AC SIGNAL TO NOISE RA TIO 70dB T ypical POWER REQUIREMENTS 120 V AC, 60 Hz, 320V A 100/120 V AC, 50/60 .
An important point after buying a device Ampeg B-200R (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 B-200R 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 B-200R - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Ampeg B-200R you will learn all the available features of the product, as well as information on its operation. The information that you get Ampeg B-200R will certainly help you make a decision on the purchase.
If you already are a holder of Ampeg B-200R, 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 B-200R.
However, one of the most important roles played by the user manual is to help in solving problems with Ampeg B-200R. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Ampeg B-200R 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
