Instrukcja obsługi Cary Audio Design SLP-308

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SLP-308 Vacuum Tube Stereo
Preamplifier
Operation and Installation Manual
Please read this manual carefully before installing your new SLP-308 into your stereo
system. It contains important set up and installation information as well as safety
warnings regarding AC voltage inside the chassis.

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Dear Audiophile Friend: I would like to thank you personally for buying a Cary Audio SLP-308 preamplifier. I have spent many hours designing and voicing the SLP-308. You will find many desirable features on your new preamplifier including a motorized remote volume control, dual RCA connector outputs, dual output level meters, a 200% duty cycle power transformer, fully regulated high voltage power supply and fully regulated filament voltage for the tubes. The high performance motorized volume pot

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SPECIFICATIONS: SLP-308 Stereo Tube Preamplifier Dimensions: 17 1/8” W x 4 _” H x 14” D (~ 44 cm x 11.4 cm x 35.5 cm) Weight: 15 lb. ( 6.8 kg) Circuit: Class A Triode Frequency Response: 9 Hz - 140 kHz + 0, - 3 dB THD @ rated output: 0.02% (750 mV rated output, 12 volts maximum) Input Impedance: 100,000 ohms resistive (100 K W) Output Impedance: 440 ohms ( 440 W) Gain: 12 dB Signal/Noise Level: -88 dB Resistors: 1 % metal film Capacitors: Film and foil output caps, 5 micro farad (5 mFd) Po

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Power Switch: 2 position toggle switch off/on controls the AC line voltage Mute: Terminates (quiets) the output, also operated via remote hand set Input Select: 4 position rotary switch controls relay input switching Tape Monitor: 2-position toggle switch engages tape loop circuit Listening Level: Motorized volume control, manual or via remote, with additional blue indicator LED in the volume knob. Dual Output Level Meters: These show output level voltage to the power amplifier, 0 dB is equival

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INSTALLATION AND UNPACKING WARNING! MAKE NO ATTEMPT TO PUT THE SLP-308 PREAMPLIFIER IN SERVICE WITH THE COVER OFF THE UNIT. CONTACT WITH THE AC VOLTAGE INSIDE THE SLP-308 CAN BE FATAL! All our shipping cartons have been especially designed to protect their contents and special care has been taken to prevent damage under normal conditions. Mishandling should be evident upon inspection of the shipping container. If damage is found after visual inspection, do not destroy the evidence. If necessary,

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INTERCONNECT CABLES The interconnect cables from the output jacks of the SLP-308 to the input jacks on the power amplifier can be any convenient length your set up requires. The choice of a high quality interconnect cable is important. Your Authorized Cary Audio Design Dealer will have proper interconnect cables in stock for this purpose. The low output impedance of the SLP-308 will run long interconnect wire runs, as long as 30-40 ft., without a problem. We suggest wires with good shielding if

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SELECTOR SWITCH The 4-position rotary switch connects a choice of input program source, both channels simultaneously. All program line sources are selected from this front panel 4 position switch. As you switch from source to source inputs, you will hear a soft mechanical clicking sound. This is normal and proper. The clicking sound is from the double pole, double throw (DPDT) gold plated relays switching input positions. WARNING!!! MAKE NO ATTEMPT TO PUT THE SLP-308 INTO SERVICE WITH THE TOP OF

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SPECIAL NOTE: Your new SLP-308 preamplifier is a polarity inverting design. This means that a positive direction musical signal coming into the SLP-308 will be polarity inverted as it is amplified and be sent to the power amplifier as a negative direction signal. The SLP-308 has one gain stage and one buffer stage in each channel. Absolute polarity inversion is common on many high-end preamplifiers. If you are concerned about ‘Absolute Phase’ in your system, reverse the positive and negative lea