Power amplifiers mono — VTL MB-450 Series III Signature

Description, images, technical data and specifications

VTL MB-450 Series III Signature
Image source — © VTL

The playback quality of the new VTL MB-450 has also been improved by using a shorter, faster and fully balanced negative feedback loop, with total negative feedback being zero. As a result of the use of local negative coupling, it was possible to get rid of ringing at high frequencies, in addition, the amplifier does not require the use of tuning capacitors to maintain the phase coherence of the reproduced signal.

Specifications

Model name
MB-450 Series III Signature
Input sensitivity (mV)
1000 - 2000
Input impedance (balanced) (Ω)
45 000
Input impedance (single-ended) (Ω)
45 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
Tetrode: 425, Triode: 225
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
20
Frequency response high +/- 3dB (Hz)
20 000
Signal to Noise Ratio (dB)
110
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
1000
Damping factor
N/A
Dimensions (mm)
470 x 457 x 230
Weight (kg)
50
Official link
https://www.vtl.com/products/power-amplifiers/monoblock-amplifiers/mb-450-series-iii-signature-monoblock/