User’s Guide for the SVT-VR Bass Amplifier Made in the U.S.A.
SVT-VR Bass Amplifier TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 The Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 The Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Important Information About Tubes and Tube Products A Brief History of the Tube . . . . . . . . . . .
SVT-VR Bass Amplifier An Introduction to your new Ampeg SVT-VR Bass Amplifier The harmonically rich sound and legendary performance of the classic AMPEG SVT are reborn in the SVT-VR. This dynamically powerful bass amp delivers a thunderous 300 watts of unsurpassed quality, reliability, and tonal flexibility, offering the classic vibrance of tubes as well as contemporary features. All of the features and controls of your SVT-VR are covered in detail within the pages of this user’s guide.
SVT-VR Bass Amplifier The Front Panel 1 2 3 7 8 9 4 5 6 13 10 11 14 12 15 16 1. ONE: (The Channel One Input jacks) The signal output from an instrument or a line level signal may be connected here by means of a shielded instrument cable. Either the Bright or Normal jack may be used - the Bright jack enhances the high frequencies of the input signal. The signal at these jacks is sent into the Channel One preamp section (tone and volume controls). 9.
SVT-VR Bass Amplifier The Rear Panel Made In The U.S.A. LOUD TECHNOLOGIES, INC. 17 18 19 20 17. AC LINE IN: Firmly insert the supplied AC power cord into this socket until it is fully seated. This grounded power cord is to be plugged into a grounded power outlet, wired to current electric codes and compatible with voltage, power, and frequency requirements stated on the rear panel. Do not attempt to defeat the safety ground connection. 18.
SVT-VR Bass Amplifier Important Information About Tubes and Tube Products A Brief History Of The Tube: In 1883, Edison discovered that electrons would flow from a suspended filament when enclosed in an evacuated lamp. Years later, in 1905, Fleming expanded on Edison's discovery and created the "Fleming Valve". Then, in 1907, Dr. Lee de Forest added a third component – the grid – to the "Fleming's Valve" and the vacuum tube was a fact of life. The door to electronic amplification was now open.
SVT-VR Bass Amplifier Important Information About Tubes and Tube Products The Nature Of Tubes: Why (And When) To Replace Them: Tubes are made up of a number of fragile mechanical components that are vacuum-sealed in a glass envelope or bubble. The tube's longevity is based on a number of factors which include how hard and often the amplifier is played, vibration from the speakers, road travel, repeated set up and tear down, etc.
SVT-VR Bass Amplifier Important Information About Tubes and Tube Products Survival Tips For Tube Amplifiers: To prolong tube life, observe these tips and recommendations: • Match the impedance of your speaker cabinet(s) to your amplifier. Improper impedance matching will contribute to early tube degradation and may cause premature tube failure. • Make sure the speaker(s) are properly connected prior to turning on the amplifier.
SVT-VR Bass Amplifier Changing The Tubes Tubes wear out in direct proportion to how often and how hard you use the amplifier. Power tubes should be checked at least once a year - more frequently if you use the amplifier nearly every day. When power tubes wear out, the amplifier will begin to grow weak, lack punch, fade up and down, or lose highs and lows. Power tubes work together in a push/pull configuration and should all be replaced at the same time with matched or balanced tubes.
SVT-VR Bass Amplifier Some Suggested Settings Standard: * Back Pickup Fretless: * Hard Edge: * “Scooped:” * * 10 = as needed
SVT-VR Bass Amplifier Troubleshooting In the unlikely event that your SVT-VR should malfunction, take a few minutes to troubleshoot it before you call for service. You can save yourself time and money by doing it yourself, and often the problem is something quite simple. If the problem isn’t covered above, or if the steps lead you here, then contact your Ampeg dealer for service information.
SVT-VR Bass Amplifier Technical Specifications OUTPUT POWER RATING 300 Watts RMS minimum continuous @ <5% THD into 2 or 4 ohms, 0.