PCB size: 65*141MM, 1.6MM thick FR4 Class A board (mono size)
Input voltage DC plus or minus 40-60V
HM4S is a reference to the circuit of the German Burmester 933 MK2 Memorial Edition balanced input pure post power amplifier.
Berlin Sound's equipment is known for its delicate and gorgeous sound, powerful dynamics, and strong sense of live.
Berliner's full range of post-amplifiers have very low output impedance and very high damping factor, even the output power of only 120W @ 4Ω 933, but also has low frequency control, some "notorious" difficult to control the speaker can cope with ease, in conjunction with the Danner series speakers have a very outstanding performance. With the indestructible noble tone.
Features
Standard 933 circuit, relatively small circuit board, suitable for most rear stage chassis
Powerful DC servo circuit, input tubes do not need to be paired
HIFI level device configuration, audiophile basic requirements
Debugging: adjust the adjustable resistor, so that the power resistor on the 47MV voltage can be, different currents have different listening sensations, players can taste (ZERO-ZONE recommended 200MA)
This version contains the new original Sanken pair of tubes 2SC2922-A1216.
Dual-channel transformer with no less than 400W
Package:
One pair HM4S A1216 C2922 Post Power Amplifier Finished Board - Berlin Sound 933 Circuit
Input voltage DC plus or minus 40-60V
HM4S is a reference to the circuit of the German Burmester 933 MK2 Memorial Edition balanced input pure post power amplifier.
Berlin Sound's equipment is known for its delicate and gorgeous sound, powerful dynamics, and strong sense of live.
Berliner's full range of post-amplifiers have very low output impedance and very high damping factor, even the output power of only 120W @ 4Ω 933, but also has low frequency control, some "notorious" difficult to control the speaker can cope with ease, in conjunction with the Danner series speakers have a very outstanding performance. With the indestructible noble tone.
Features
Standard 933 circuit, relatively small circuit board, suitable for most rear stage chassis
Powerful DC servo circuit, input tubes do not need to be paired
HIFI level device configuration, audiophile basic requirements
Debugging: adjust the adjustable resistor, so that the power resistor on the 47MV voltage can be, different currents have different listening sensations, players can taste (ZERO-ZONE recommended 200MA)
This version contains the new original Sanken pair of tubes 2SC2922-A1216.
Dual-channel transformer with no less than 400W
Package:
One pair HM4S A1216 C2922 Post Power Amplifier Finished Board - Berlin Sound 933 Circuit
