MasterSound Monoblock 300B
Image source — © MasterSound
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Model name
Monoblock 300B
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
50 000
Input impedance (single-ended) (Ω)
50 000
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
24
Output power (4Ω) (W)
N/A
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
8
Frequency response high +/- 3dB (Hz)
45 000
Signal to Noise Ratio (dB)
N/A
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)
460 x 400 x 240
Weight (kg)
25
Official link
The Mastersound PF100 Litz Edition is a flagship Class A monoblock tube power amplifier, built according to a parallel single-stroke triode circuit with four 845 lamps and three 6SN7 lamps, producing 1×107 watts at 4 or 8 ohms.
The Mastersound Booster is a Class A tube mono-amplifier with Automatic Bias, producing 2 × 80 watts in pentode mode or 2 × 40 watts in triode mode, equipped with 2 × 6SN7 GT and 2 × KT150 lamps, as well as XLR and RCA inputs for connecting to an audio system.
Due to the complete lack of feedback, this monoblock features an unusually wide, deep and balanced sound stage. Achieving the highest sound quality is also facilitated by the most meticulous selection of individual components: according to the criteria of the highest quality, reliability and availability over time.