VTL MB-185 Signature Series III

Hinta

28 200,00 (sis. alv)

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Signature-sarjan monopäätepari. Järeät virtalähteet ja 6kpl/kanava pääteputket takaavat ettei voima lopu kesken. KT88 tai vaihtoehtoisesti 6550-pääteputket. Tetrodina tehoa 220W/kanava ja triodina 110W/kanava. Autobias helpottaa käyttöä eikä huononna äänenlaatua. Musta ja hopea. Hinta/pari.

 

  • Fully balanced differential circuit – even single-ended 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 capacitor compensation
  • Tube like JFET-type current source for lower sonic impact in single-ended mode
  • Lower impedance output stage for improved loudspeaker control
  • Dramatically increased interleaving and coupling in the balanced VTL proprietary Signature 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
  • 225 watts per channel in tetrode; 140 watts per channel in triode
  • Uses eight EL34 or 6CA7 tubes per monoblock
  • Adjustable regulated screen supply 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
  • Rack mountable
  • Rigid construction and improved ventilation for lower operating temperature
  • Factory upgradeable from Series II
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Vacuum Tube Complement8 x EL34 or 6CA7, 1 x 12AT7, 1 x 12BH7
Output power
20Hz – 20kHz <3% THD
Tetrode: 225 Watts, Triode: 140 Watts
Into 5Ω
Input sensitivityVariable between 1-2V, depending upon DF setting
Input impedance45kΩ
Load setting
Output load range4Ω – 8Ω
S/N ratio225W Tetrode & 140W Triode: -90dB, 120Hz
Power consumptionIdle = 270W, Full power = 550W
Primary mains fuse rating100/120V = 12A Ceramic Slo Blo, 220/240V = 6A Ceramic Slo Blo
Input fuse100/120V = 1A Ceramic Slo Blo, 220/240V = 1A Ceramic Slo Blo
Logic fuse100/120V = 1A Ceramic Slo Blo, 220/240V = 1A Ceramic Slo Blo
B+ fuse ratingPlate Fuse – 1.5A fast acting 600V, Screen Fuse – 0.75A fast acting 600V
Dimensions W x D x H18.5 x 18 x 9 inches (47 x 45.7 x 23 cm)
Weight85lbs (38.5kg) per monoblock unpacked, 100lbs (45.4kg) packed