NEW JE AUDIO VS70.1 POWER AMP
Posted: Tue Mar 15, 2011 1:19 am
RELEASE DATE: APRIL
£TBA
The new VS70.1 from JE AUDIO
# Fully balanced input (also has separate RCA input).
# Fully balanced output (no loudspeaker terminal is connected to a ground terminal).
# Patented Dual Balanced Feedback Topology (DBFT) improves signal integrity and audio fidelity.
# Stereo 2 x 40W output (2 x KT77 power tubes per channel) with premium power supply.
# C-core filtering choke and premium capacitors are used in power supply filtering circuit.
# Output transformer uses premium grade M6 grain oriented steel imported from the United States. The primary side is connected in the Ultra-linear configuration and the secondary side in a proprietary full balanced configuration.
# Power transformer uses premium grade grain oriented R-Core imported from Japan. Low noise and high efficiency ensures minimum temperature rise from the power transformer.
# Premium grade copper foil in oil type signal capacitors for signal coupling.
# Fixed biasing is used for power tubes. Biasing current for each tube can be adjusted individually.
# Soft power-up circuit reduces the inrush current when switching on. It also ensures that in the first 60 seconds only a reduced supply voltage is applied to all vacuum tubes. This prolongs life of all rectifying diodes, power supply filtering capacitors and vacuum tubes.
Block diagram of a conventional single-ended line amplifier by cascading three amplifying stages and employing global negative feedback.
Block diagram of the VL20 line amplifier employing the Wideband Balanced Amplifying Topology
The VL20 and VS70 have been awarded the Blue Moon award by 6moons!
