Quicksilver Preamplifier Bedienungsanleitung

Quicksilver Audio Full Function Preamplifier

Operating Instructions

ThankyouforpurchasingtheQuicksilverAudioFullFunctionPreamplifier. Thispieceofmusicalequipmenthasbeen

engineered to have a very wide bandwidth, extremely low distortion and superior dynamic range.

This all-tube preamp has a uniquely low output impedance, allowing it to drive very long interconnectcables and any

available amplifier, whether tube or transistor.

The preamp circuitry is non phase-inverting.

This device has very high internal voltages. Never operate with protective grills or base

removed. Any attempt at tube replacement must be done with unit disconnected from any

AC power source.

In some instances the mute switch may need to be depressed when the preamp is turned

on and off. See MUTE section.

PLACEMENT

For adequate ventilation allow at least 4 inches of space above the preamplifier.

SYSTEM GROUNDING

Yourpreamp hasathreeprongedgroundedACplug. ForbestgroundingtheQuicksilverpreamp

should provide the system ground. If you ground other pieces independently a slight hum may be

audible.

MUTE

The safest system turn-on is to always turn the power amplifier ON LAST.

If you choose not to do this then you must depress the mute switch for 60 seconds after turn-on.

Thisis toavoid theappearance ofDC voltageat theoutput ofthe preamplifierwhich maydamage

some amplifiers and speakers.

When Quicksilver amplifiers are used, then the preamp and amps may be turned on at the same

time without the use of the mute switch.

Upon turn-off, the preamp automatically mutes.

NOISE

A small amount of hiss from the speakers in most systems in normal. If excessive noise is

noticed from the preamp, with the volume controls turned all the way down, then the 12AU7

line input tube may be bad. If the noise disappears when the mute switch is pushed in, this is

most likely the cause.

FUSE

Never use larger than a 1.5 amp fast-blo fuse. A fuse can blow for the following reasons:

1. The preamp was switched on sooner than 45 seconds after it was switched off.

2. The 5AR4 rectifier tube at the left rear of the preamp is bad.

TUBES

The tubes and their placement within the preamp were chosen for their specific performance

characteristics. We can only guarantee the performance of this unit when used with the curve-

traced and matched tubes supplied by Quicksilver.

The tubes should last several years or many thousands of hours. Replacement tubes may be

purchased directly from Quicksilver or your dealer.

Due to the unit’s high current, Class A design and slow warm-up features we highly recommend

that the unit NOT be left on when not in use.

POWER OUTLETS MUTE

LEFT RIGHT

MODE INPUT

OUT MON

VOLUME

TAPE

MUTE

Disconnects the preamp from the

amplifier and grounds the input of

the amplifier

LEFT & RIGHT VOLUME

Dual volume controls were chosen

for their sonic superioritiy

-20dB

Decreases the output 20 db so

that volume controls need not

be adjusted to reduce the level

momentarily INPUT

Phono, CD, Tuner, Video, Aux

OUTLETS

Illuminated, this energizes 2

outlets on back panel marked

“outlet switch”. If left in the “ON”

position, the main power switch

will control these outlets and

switch

POWER

Illuminated, this

indicates power

applied. Also ener-

gizes 2 outlets on

back marked “power

switch”

MODE

Mono- Both channels are combined

Stereo Reverse- L input to R output; R input to L output

Left- Feeds L channel signal to both channels

Right- Feeds R channel signal to both channels

TAPE MON

This switch, when moved to the IN

position, turns off all sources, allow-

ing only the signal entering the TAPE

INPUT to be amplified. NOTE: This

switch does not affest the signal at

the tape output.

TAPE OUT

This switch, when moved to the OFF

position, turns off the tape output.

NOTE: This switch should be left in

the OFF position unless a signal is

needed for recording purposes.

WARRANTY

Quicksilver Audio warranties your preamplifier for a period of 3 years from the date of pur-

chase (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 at least one packing carton in case a unit needs to be returned for service.

Quicksilver Audio

5635 Riggins Court, Unit 15

Reno, NV 89502

(775) 825-1514 / Fax 825-1552

www.quicksilveraudio.com

Quicksilver Audio Full Function Preamplifier

SPECIFICATIONS

LINE STAGE:

Bandwidth = 1Hz to 650KHz

Gain = 27 db

Input Impedance = 100K Ω-

20Hz to 20KHz

Output Impedance = 12.5 Ω

Maximum Input = 30volts RMS,

20Hz to 20KHz

Maximum Output = 65volts RMS,

20Hz to 20KHz

Tube Complement = 1-12AX7, 1-12AU7,

1-12FQ7

PHONO STAGE

Bandwidth = 20 Hz to 20KHz

Gain = 39 db at 1 KHz

Maximum Input = 500mv

Tube Complement = 1 -12AX7, 1 -12FQ7

POWER SUPPLY:

Storage = 122 joules

Output Voltage = 400 and 620 volts

Tube Complement = 1 -5AR4

Dimensions: Chassis 17”x11”,

Front panel 19” x 5.25”

Weight: 21 pounds

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