MB-450 Series II

시그니처 모노블럭 앰프

47 x 23 x 46 cm mm
42 kg

오토바이어스 400와트 모노블럭 앰프 밸런스드 입력(Triode 200와트 전환)


Music connoisseurs have long admired the MB-450 for outstanding performance at a fair value. Now, VTL has significantly revised these venerable monoblocks, using many of the technological innovations derived from the flagship Siegfried Reference Amplifier. The extensive updates include a revised power supply, SmartTube technology with automatic bias adjustment and fault sensing, and upgraded electronic components. The result is a significant advance in sonic performance, with greatly improved bass punch and dynamics. A sleek new precision-milled faceplate incorporates a smoked glass window, giving users an impressive glimpse of the glowing tubes within. These monoblocks are ideally suited for those seeking a thoroughly modern high-power amplifier that competes in sonics, looks and usability with the very best.


Feature List:

  1. VTL proprietary Signature output transformer
  2. Software microprocessor controlled
    • Tetrode/Triode Switchable
    • Auto Bias, Fault Sensing
    • Current in-rush limiting
    • Standby Mute function
  3. 450 watts per channel in tetrode;
    200 watts per channel in triode
  4. 8 x 6550C or KT-88 tubes per monoblock
  5. Regulated screen supply and separate fusing
  1. Discrete regulated input and driver supply
  2. Redesigned fully balanced input and driver stages
  3. High quality audiophile grade coupling caps
  4. 12V Trigger and mute input
  5. Extruded aluminum front panel with luxurious,
    modern look – black and silver options available
  6. Front panel window of thick smoked glass reveals
    the glow of multiple output tubes
  7. Rack mountable
  8. Rigid construction and improved heat ventilation


MB-450 Series II Signature Monoblock Data Specification
 진공관 구성  8 x 6550C, 1 x 12AT7, 1x 12BH7 
 파워 출력
 20 Hz – 20 kHz into 5 ohm load 
 Tetrode = 425W
 Triode = 225W 
THD 20Hz - 20kHz @ 450W Tetrode
THD 20Hz - 20kHz @ 200W Triode  
 입력감도 @ 450W Tetrode   2.0V 
 입력 임피던스  42K Ohms 
 최적 로드 셋팅  4 - 8 Ohms 
 S/N Ratio @ 450W Tetrode
 S/N Ratio @ 200W Triode 
 -110dB, 120Hz 
 소비전력  Idle = 300W, Full Power =1000W 
 Primary Main Fuse Rating   110/120V = 15A Ceramic Slo Blo
 220/240V = 8A Ceramic Slo Blo 
 Input Fuse   110/120V = 1A Ceramic Slo Blo
 220/240V = 1A Ceramic Slo Blo 
 Logic Fuse   110/120V = 1A Ceramic Slo Blo
 220/240V = 1A Ceramic Slo Blo 
 B+ Fuse Rating   Plate Fuse - 2.5A Fast Acting 600V
 Screen Fuse - 0.75A Fast Acting 600V 
 규격   W = 18.5 Inches (47 cm)
 H = 9 Inches (23 cm)
 D = 18 Inches (46 cm) 
 중량  93 lbs (42 Kg) unpacked
 110 lbs (50 Kg) packed