תיאור מוצר

** ניתן להזמין גם כ – Power

New Audio Frontiers – Performance 2A3

Each single part of the circuit has been at first planned, then optimized with the aid of computer based simulation and then bench-tested and tuned-up in order to obtain the best performances with sophisticated instruments. This lead us to use a dual-mono configuration, with fully regulated power supplies even for the power stage that has a completely dedicated power supply. We designed a particular voltage regulator module that will be able to give a constant low output impedance and that at the same time will not enworse the sound quality. In designing this circuit we have paid a particular attention in the attenuation of the disturbances at the input of the amplifier that today are more and more a problem in a domestic environment. This become evident also by the use of electrolytic capacitors of huge capacitance (1360uF total on output stage power supply, a record value for a tube amplifier) and by the use of an inductive filter. In order to maximise output power and dynamic we decided to configure the output stage in Push-Pull with fixed bias. This choice improve the overload-recovery of the amplifier ensuring a better behaviour during dynamic peaks at high listening level. The driver stage is composed by differential amplifiers with current source that allow us to cancel intrinsic non linearities of the amplification elements. This allows to have a very low distortion level in output of the amplifier until clipping. All the circuital choices and components has then been confirmed by many listening sessions that allowed us to put on sale this product. This integrated amplifier is recommended with loudspeaker having a sensitivity of at least 93dB and has 5 line inputs. The output
transformers are are made with silvered copper litz.

Specification:

Power: 2 x 12 Watt on 8 ohm / THD 5%
Sensetivity: 1 V
Frequancy response: 20 Hz * 60 Khz
Impedance: 100K
Signal noise ratio: 80db
Power consumption: 300Watt Max
Dimensions: 35 x 24 x 56 cm ( W x H x D )
Net weight: 40 kg