Power amplifiers mono — VTL MB-125

Description, images, technical data and specifications

VTL MB-125
Image source — © VTL

The VTL MB-125 monoblock lamp power amplifier is a fairly compact monoblock lamp power amplifier. This model is designed both for installation in a stereo system and for use in a home theater system. The amplifier design uses 2 12AT7 and 4 EL34 lamps. Unlike the more "older" models, there is no automatic lamp offset current adjustment scheme – BIAS adjustments are made manually, independently for each of the lamps.

Specifications

Model name
MB-125
Input sensitivity (mV)
700
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
145 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
Tetrode: 100, Triode: 50
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)
95
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
400 x 300 x 180
Weight (kg)
25
Official link
https://www.vtl.com/products/power-amplifiers/monoblock-amplifiers/mb-125-monoblock/