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Power amplifiers mono — MasterSound PF100 litz edition
Description, images, technical data and specifications
MasterSound PF100 litz edition
Image source — © MasterSound
The PF100 Litz Edition is a mono power amplifier from MasterSound, built with a wide rated bandwidth typical of a tube design. This model represents MasterSound's dedicated mono power amplifier offering, extending the brand's characteristic tube engineering into a per-channel format for a system built around separate preamplification.
Position in line
It sits alongside the Booster in MasterSound's power amplifier range as a related design. This positioning alongside the Booster suggests MasterSound offers a small, focused catalogue of mono power amplifiers, each likely reflecting a distinct output stage approach or tube complement.
Key specs that matter
Rated output is 107 W into both 8 and 4 ohms. Rated bandwidth is 12 Hz to 90 kHz. At 540 x 470 x 270 mm and 50 kg it is a substantial, heavy monoblock, consistent with a serious tube-based power supply and output transformer configuration.
Sound and use context
Expect the open, harmonically rich character typical of a substantial tube monoblock design - an engaging performer reflecting MasterSound's broader house philosophy of prioritising tonal richness alongside measured performance.
Pairing
Loudspeaker sensitivity matters given the amplifier's tube-typical output level and construction, so a reasonably efficient loudspeaker pairing is worth prioritising for the best results.
Alternatives
The Booster sits alongside this model in MasterSound's power amplifier range as a related design, worth comparing directly with a specialist dealer given the brand's relatively limited international distribution outside Italy. Given the substantial 50 kg weight and tube-based construction, adequate ventilation space around the chassis is essential for reliable long-term operation. MasterSound relatively limited international distribution outside Italy means sourcing a dealer with genuine hands-on experience of the brand is worth the extra research effort before committing to a purchase. Overall this remains an engaging tube monoblock reflecting MasterSound characteristic Italian voicing. A dealer visit remains the simplest way to compare this model against the closely related Booster. Cable and stand choices matter far less here than getting the basic loudspeaker sensitivity match right. Adequate mains supply is also worth confirming given the substantial transformer inside. Overall this remains an engaging choice for a tube enthusiast.
Position in line
It sits alongside the Booster in MasterSound's power amplifier range as a related design. This positioning alongside the Booster suggests MasterSound offers a small, focused catalogue of mono power amplifiers, each likely reflecting a distinct output stage approach or tube complement.
Key specs that matter
Rated output is 107 W into both 8 and 4 ohms. Rated bandwidth is 12 Hz to 90 kHz. At 540 x 470 x 270 mm and 50 kg it is a substantial, heavy monoblock, consistent with a serious tube-based power supply and output transformer configuration.
Sound and use context
Expect the open, harmonically rich character typical of a substantial tube monoblock design - an engaging performer reflecting MasterSound's broader house philosophy of prioritising tonal richness alongside measured performance.
Pairing
Loudspeaker sensitivity matters given the amplifier's tube-typical output level and construction, so a reasonably efficient loudspeaker pairing is worth prioritising for the best results.
Alternatives
The Booster sits alongside this model in MasterSound's power amplifier range as a related design, worth comparing directly with a specialist dealer given the brand's relatively limited international distribution outside Italy. Given the substantial 50 kg weight and tube-based construction, adequate ventilation space around the chassis is essential for reliable long-term operation. MasterSound relatively limited international distribution outside Italy means sourcing a dealer with genuine hands-on experience of the brand is worth the extra research effort before committing to a purchase. Overall this remains an engaging tube monoblock reflecting MasterSound characteristic Italian voicing. A dealer visit remains the simplest way to compare this model against the closely related Booster. Cable and stand choices matter far less here than getting the basic loudspeaker sensitivity match right. Adequate mains supply is also worth confirming given the substantial transformer inside. Overall this remains an engaging choice for a tube enthusiast.
Specifications
Model name
PF100 litz edition
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
107
Output power (4Ω) (W)
107
Gain (dBu)
N/A
Frequency response low +/- 3dB (Hz)
12
Frequency response high +/- 3dB (Hz)
90 000
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)
540 x 470 x 270
Weight (kg)
50
Official link
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