Quicksilver Line Stage Preamplifier Operating Instructions

Operating Instructions Thank you for purchasing a Quicksilver Audio Line Stage Preamplifier. This unit was designed to be simple and reliable and to give wonderful sound quality at a reasonable price. We, at Quicksilver, are confident you will enjoy it! ALLOW ADEQUATE VENTILATION The preamplifier should be placed where it will have at least 4 inches of air circulation above it. SYSTEM GROUNDING Your preamp has a three pronged grounded AC plug. For best grounding the Quicksilver Line Stage Preamp should provide the system ground. If you ground other pieces independently, a slight hum may be audible. AUTO-MUTE When the preamp is first turned on, it will automatically mute the outputs for approximately 30 seconds. During this time the LED on the front panel will light RED. When the preamp comes out of auto-mute, the LED will light GREEN. If the preamp is turned off, or power is lost for longer than 3 seconds, the auto-mute circuit will re-engage. TUBES Your preamp is shipped with J.J. 12AT7s, which we feel provide the best sound, and have a life span of many thousands of hours. The J.J. 12AT7 is a new design and provides superior performance to new old stock 12AT7s. The Chinese also have a redesigned 12AT7 which provides very good performance. FUSE Never use larger than a 0.5 amp fast-blo fuse. If the fuse continually blows, the preamp should be returned to Quicksilver for servicing. NOISE A small amount of hiss from the speakers, in most systems, is normal. If excessive noise is noticed in one channel, with the volume control turned all the way down, then a tube may be noisy. When facing the preamp front panel, the tube for the left channel is on the left side and the tube for the right channel is on the right side. If reversing the tubes causes the noise to go to the other channel, then that tube is the noisy one. If it makes no difference, the noise problem could be another component. This preamplifier is phase inverting.

Front of Preamp: IEC LINE CORD CONNECTOR 1/2 AMP FUSE 14 GOLD-PLATED TEFLON- INSERT RCA CONNECTORS 1/2 AMP LEFT CHANNEL RIGHT CHANNEL TUNER CD AUX VIDEO TAPE IN TAPE OUT MAIN OUT Model LPreamp Serial N. LED INDICATOR LIGHT Red when in Auto-Mute, green when unit is ready to use. POWER / OFF up is on VOLUME 41 detent precision Alps attenuator. INPUT SELECTOR Video/Aux/CD /Tuner TAPE MONITOR / OFF Tape Monitor position, turns off all sources allowing only the signal entering the Tape Input to be amplified. Note: Signal at tape output not affected. VOLUME INPUT SELECTOR POWER OFF TAPE MONITOR OFF Line Preamplifier VIDEO AUX CD TUNER

Bandwidth 0.1 Hz to 100 KHz Gain 18 db ± 1 db Input Impedance 100 Kohm, 20 Hz - 20 KHz Output Impedance 100 ohm, 20 Hz - 20 KHz Maximum Input 30 volts RMS, 20 Hz - 20 KHz Maximum Output 60 volts RMS, 20 Hz - 20 KHz Tube Complement 2-12AT7 Dimensions 3"H, 9 1/2"D, 15"W Front Panel 3 1/4"H, 17"W Weight 12 lbs WARRANTY Quicksilver Audio warranties your new Line Stage Preamplifier for a period of three years from the date of purchase (90 days on tubes.) Parts and labor are provided free of charge as long as the failure was not caused by misuse, accident or negligence. Shipping to the factory is not included. Retain your packing carton in case the unit needs to be returned for service. Quicksilver Audio 1103 Enterprise Street Stockton, CA 95204 (209) 957-6640 / Fax 957-6641 www.quicksilveraudio.com