AUDIO FUTURA spa Verdi Cento Integrated Amplifier Issue Date: November 2008 AUDIO FUTURA spa Research & Development E-Mail (support): sblanda@audioanalogue.com podesta@audioanalogue.com saggini@audioanlogue.com elia@audioanalogue.
AUDIO FUTURA spa Introduction Audio Analogue continues in Vacuum Tube/Solid State technology fusion research introducing the Verdi Cento Integrated Amplifier to complete the audio chain begun with RossiniCD Player REV2.0. We believe vacuum tube technology is, even now, very valid in treating the audio signal in a preamplifier stage while leaving to solid state technology the task of the Power stage.
AUDIO FUTURA spa Unit description 5 6 2 1 3 3 1. Power Supply 2. Vacuum Tube Preamplifier Stage 3. Power Stages 4. Protections 5. Mono/Pre Output 6. Pre Phono Stage 7. Functionality 8.
AUDIO FUTURA spa 1. Power Supply The Power supply is the basis of every audio device. The Verdi Cento Integrated amplifier has a very generous toroidal transformer with a dedicated secondary stage for each section of the unit.
AUDIO FUTURA spa Power Amps Power Supply We have dedicated a secondary stage for each power stage channel to decrease the crosstalk and increase the “sound stage” definition. The power amps power supplies take advantage of the high power toroidal transformer and discrete high current rectifier bridge have been used to allow high current peaks.
AUDIO FUTURA spa 3. Power Stage Our purpose was to have a solid state power stage as “transparent” as possible, able to provide/supply 100W in an 8Ohm load. So we have chosen the National Semiconductors LM3886 Power pack as a building block and we have designed a “parallel/bridged” power amplifier.
AUDIO FUTURA spa 6. Pre phono stage Verdi cento has a pre Phono section able to treat both MC and MM signals. You can easily set the Pre Phono Mode changing the position of Jumpers on the board. We have chosen this kind of Mode selection because it permits you to perform the Pre Phono settings without increasing the track’s length and it avoids the low level signal from the cartridge passing through selectors. 7. Functionality Verdi Cento has a new set of functions that makes it very flexible.
