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Premium tubes set – 7 Trouble-shooting guide– 7 TECH N I CAL DATA Type: stereo vacuum tube amplifier Model: Alfa Lupi, Evolution Max output power: 2x10W Circuit type: push-pull AB1 class Output impedance: 4Ω/8Ω Inputs: 3xRCA + optional 1xRCA (pre-in) Harmonic distortions THD: <0,3%...
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I NTRO DUCTI O N Join the Fezz Audio vacuum tube world with the Alfa Lupi. New version of amplifier in standard is equipped with anti- vibration feet, adapted to the weight of the device. New Fezz backlight logo. Let yourself be fascinated thanks to its incredible sound presentation.
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VAC U U M T U B E S I N S TA L L AT I O N Place the amplifier on a stable surface. Carefully remove the vacuum tubes from their packaging and install them in the appropriate sockets, as show below, and adhering to the numbering scheme as identified on the packaging. The pins in the base of each of the vacuum tubes are “coded”, and this has the result that the insertion of the vacuum tube into the socket is possible only in one correct and appropriate orientation.
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Pay attention to the proper connection and distinction of the right (R) and the left (L) channels. For the best sound quality, we suggest using the Fezz FAC 01 interconnect cable dedicated for Fezz Audio vacuum tube amplifiers. To connect a turntable, you will need to use an external phono MC/MM preamplifier or turnatble with a built-in preamplifier.
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FI RST POWER- U P AN D G ET TI N G Make sure that all of your wiring is connected in accordance with the information as provided above. 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 amplifier –...
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After connection of the Switch GND signal ground switch as adepicted with preamplifier hum from both index 5 page 5. speakers appeared. If you have verified the aforementioned situations, and your problem still persists, please contact your local Fezz Audio dealer.
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