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TAD Micro Evolution One


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VTL S-400 mk II  


STANJE UREĐAJA:







CIJENA:

Fully balanced differential circuit – single-ended input signal produces balanced signal at output
Re-designed fully balanced differential input and driver stages for increased signal swing, bandwidth and stability
Zero global Negative Feedback
Shorter, faster feedback loop for greater tonal control without phase shift.
Improved handling of loudspeaker loads for greater signal stability.
The amplifier is unconditionally stable, without the need for any capacitor compensation.
New current source for greater sonic integrity in single-ended mode
Lower impedance output stage for improved loudspeaker control
Dramatically increased interleaving and coupling in the balanced VTL proprietary Reference output transformer, for wider bandwidth and zero ringing
Variable user-adjustable DF feedback control to vary output impedance and damping factor for optimal matching to speaker load
Software microprocessor controlled
Tetrode/Triode Switchable
Auto Bias, Fault Sensing
Current in-rush limiting
Standby Mute function; with reduced tube current for increased tube life
Fully bi-directional RS-232 control
300 watts per channel in tetrode; 150 watts per channel in triode
Uses twelve 6550 or KT-88 tubes
Adjustable precision-regulated plate and screen supplies for stable operating point; discrete regulated input and driver supply for greater signal resolution and tonality
Adjustable precision-regulated bias supply for greater signal resolution and noise rejection and improved isolation from mains supply variations; output operating point does not change with AC power fluctuations
Improved Autobias and fault sensing system to operate in fully balanced differential mode; amplifier is fully protected against output tube failure; no need for precision matching of output tubes
All premium Mundorf silver oil caps in signal path
Film bypass of power supply caps for greater HF resolution
Extruded aluminum front panel with luxurious, modern look – black and silver options available
Precision regulated B+ and screen supplies
Rigid construction and improved ventilation for lower operating temperature
Factory upgradeable from Series I


          


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