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Table of Contents
Summary of Contents for FezzAudio Silver Luna
- Page 1 Silver Luna USER’S MANUAL...
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Page 2: Safety Tips
• Never place the Fezz Audio Silver Luna amplifier near heat sources, such as radiators, heaters or direct sunlight. Ensure adequate ventilation and airflow. -
Page 3: Table Of Contents
TABLE OF CONTENTS ________________________________________ SAFETY TIPS ___2___ INTRODUCTION ___4___ The Tube Amplifier INSTALLATION OF THE DEVICE ___5___ Unpacking Contents of the package Description of the elements of the amplifier Installation of the vacuum tubes Where to place your amplifier INTERCONNECTIONS ___9___ Hook-up of the power supply cord Hook-up of the signal sources... -
Page 4: Introduction
INTRODUCTION _______________________________________________ Thank you for your trust and for choosing the Fezz Audio Silver Luna amplifier. At times when the audio world becomes increasingly digital, Fezz Audio does not forget about analog lovers. Silver Luna is the first Polish, series produced integrated vacuum tube amplifier, which is designed for both people starting out in their audio adventure, but also for those experienced with the “vacuum tube sound”... -
Page 5: Installation Of The Device
INSTALATION OF THE DEVICE _______________________________ UNPACKING Please kindly check if the packaging of the Silver Luna amplifier has not been damaged during transit. If you find any damages, please immediately contact your dealer. Remove the amplifier and accessories from the packaging. Make sure that the content is not damaged. -
Page 6: Description Of The Elements Of The Amplifier
DESCRIPTION OF THE ELEMENTS OF THE AMPLIFIER 1) Volume control 2) Input Source Selector 3) Sockets for the right channel vacuum tubes 4) Sockets for the left channel vacuum tubes 5) The housing for the power supply transformer 6) The housing for the output transformers... -
Page 7: Installation Of The Vacuum Tubes
INSTALLATION OF THE VACUUM TUBES Place the Silver Luna amplifier on a stable surface. Carefully remove the vacuum tubes from their packaging and install them in the appropriate sockets, as shown below, and adhering to the numbering scheme as identified on the packaging. Please pay attention to the diameter of the socket and to the appropriate orientation of the vacuum tube pins. -
Page 8: Where To Place Your Amplifier
The sound quality may be degraded as a result of vibrations. Therefore we recommended to place the amplifier on a flat and stable surface. ATTENTION - Never place the Fezz Audio Silver Luna amplifier in the vicinity of sources that produce large amounts of heat. -
Page 9: Interconnections
5) The IEC power supply cord socket 6) Mains switch The figure above shows the rear panel view of the Fezz Audio Silver Luna tube amplifier, together with a description of the inputs and outputs allowing for connection of the other elements of your audio system. -
Page 10: Hook-Up Of The Power Supply Cord
HOOK-UP OF THE POWER SUPPLY CORD Make sure that the amplifier is switched off. Connect the power cord to the IEC socket on the rear panel of the amplifier. The amplifier is designed to operate at a rated voltage of 230V / 50Hz. Connecting the device to a mains network with incorrect parameters can lead to damage that is not covered by manufacturers warranty HOOK-UP OF THE SIGNAL SOURCES... -
Page 11: First Power-Up And Getting Started
Select the source of signal using the rotary selector switch located on the front panel. Set the volume control to minimum. Turn on the mains power of the Silver Luna amplifier – the vacuum tubes shall begin to glow. Make sure that the sound source is turned on, playing, and then gradually increase the volume level by turning the potentiometer. -
Page 12: Adjustment And Control Of The Bias Currents
ADJUSTMENT AND CONTROL OF THE BIAS CURRENTS _________ Setting and control of the bias is a procedure that is required after the first switch-on and after the initial burn-in period of the amplifier. Later on, we recommend to check these parameters once a month. Please make yourself acquainted with the locations of the measuring points: •... - Page 13 THE PROCEDURE FOR ADJUSTMENT OF BIAS FOR THE RIGHT CHANNEL 1) Use a digital multi-meter. Set it to either automatic mode, or to manual mode, to an operating measurement range of 750mV DC. Next, please measure the differential voltage between MR2 and MR3. 2) Adjust the balance of the BIAS by gently rotating the BIAS balance potentiometer AR2, so as to achieve a measured differential value as close as possible to 0 mV DC (+/-20mV).
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Page 14: Burning-In" The Amplifier
“BURNING-IN” OF THE AMPLIFIER _____________________________ Any tube amplifier requires an initial pre-heating (or "burn-in") period, in order so that it achieves its full sonic potential. This is due to the presence of residual polarization of dielectric elements and due to a necessary stabilization of working parameters of the vacuum tubes. -
Page 15: Technical Data
TECHNICAL DATA _____________________________________________ Type: Stereo power amplifier Model: Silver Luna Output power: 2x 35W Circuit architecture Push-Pull, class AB1 Output Impedance: 4Ω / 8Ω Input connectors: 3x RCA THD distortion: < 1% Frequency response: 15Hz – 77kHz (at -3dB) Power consumption:... -
Page 16: Limited Warranty Conditions
LIMITED WARRANTY CONDITIONS _____________________________ The manufacturer, the company Fezz Audio warrants that this Silver Luna amplifier is free from defects in materials and in workmanship. This warranty is valid for a period of 24 months from the date of purchase.