|SANSUI B-2105 MOS VINTAGE
The model of the end in which 2SK405/2SJ115 which is
Power MOS FET were carried.
The Advanced Hyper alpha-X balance circuitry
developed in order to make into zero distortion of operation by transmit /
amplification it1 generated at the time of a real operation is adopted.
was considered as the closed loop through all the systems from the entry point
of sound to an outlet, and operating environment which is proud of a stability
is realized in the circuitry which made the driver stage the up-and-down
symmetrical balance type linear current-supply-source scheme.
was made into the cascade of FET, the NEW diamond differential circuit which can
take out - output without phase inversion was adopted, and the outstanding
linearity, and momentary large powering capacity and high-speed responsibility
have been acquired in accordance with the driver power-source part used as the
up-and-down symmetrical balance type.
A large-sized low oscillating
transformer is used for a power-source part, and it has heightened
Moreover, the closed-loop stream composition
which carried out full independence from the grounding is adopted, there is no
mixing of a grounding noise, and the clean always and stabilized large current
The optimal weight balance is realized by adopting the
strengthening twin monophonic construction which is the case design which
eliminates the influence of the oscillation generated by the power supply system
and a signal system from a structure side, placing a power-source part in the
center of amplifier, and arranging a power unit symmetrically.
This controlled the occurrence and the propagation of the oscillation,
and the image orientation and the phase response are gained by attaining
shortest-ization of a circuitry.
Taking advantage of the
outstanding damping characteristics, the influence on the tone which the
physical properties of various oscillations and the material which are generated
by the electric, mechanical operation, etc. bring the gilding pure-copper
ellipse insulator which eliminates an internal interference and an extraneous
vibration, and pure-copper material and a Teflon sheet by using it effectively
A volume has a parallel stream composition and is
reducing contact resistance by half so that a sound volume can be adjusted
without spoiling a music signal.
The thumb which achieved the right-and-left
independency interlocks, and can control the right-and-left said level.
A gilding treatment, non-magnetic-material-izing, low-impedance-izing,
high-speed-izing, and the measure against vibration proof are put into practice among parts.
Variable input (NORMAL-1, 2) and fixed input (NORMAL,
The Switzerland Neutrik make gilding balance input
The bi-wiring interconnection and the gilding speaker
terminal corresponding to a banana plug made from WBT, and a gilding RCA input
terminal are carried.
6N copper belt busbar adoption,
chassis is used as the pure-copper inner chassis and the W bottom chassis of a
copper plating outer chassis.
The copper plating treatment of all the
screws is carried out.
||Stereo power amplifier
|Effective output (10Hz - 20kHz, both channel simultaneous operation)
|THD (at the time of an effective output)
|Cross modulation distortion
|Frequency characteristic (1W)
||DC-300kHz and +0 -3dB
|Input sensitivity/input impedance (1kHz)
|SN ratio (A network, a short circuit)
||110dB or more
|エンベ lobe distortion
||Below a limit of measurement
|TIM distortion (SWATOOTH)
||Below a limit of measurement
|Channel separation (1kHz)
||90dB or more
||Width 460x height 174x depth of 480mm