Integrato in ottime condizioni , era il pił potente di questa serie e non
ne sono stati venduti molti in italia in quanto piuttosto costo , direi
piuttosto raro e difficile da trovare , ottima timbrica e buona la
potenza , questi sono 60 watt buoni !!
The Integrated Amplifier
which investigated the quality of all fields, such as a performance side,
an organization side, a functional side, and a design side, and was
The power amplifier part has adopted DC amplifier stream composition which
removed the time constant circuitry in the NFB loop which is one of the
causes which worsens a transient response. Moreover, about the problem of
the drift over a variation of external requirements, such as supply
voltage and a temperature, for every main point, an electric and an
organization device are given and are suppressed on the level which can be
To the power transistor, the destructive-proof intensity selected
carefully highly what has high high region cut-off frequency, and EBT (emitter
ballast and transistor) is adopted as a driver transistor. Furthermore,
the stable high region property with little notching distortion is
realized for the pre-driver stage a constant voltage and by carrying out a
constant current drive.
The three-step hardwired-connection equalizer circuitry, the two-step
hardwired-connection flat amplifier circuitry, and the two-step
hardwired-connection tone amplifier circuitry are adopted as a
In order to attain further more much more low-distortion-izing and high SN
ratio-ization, while carrying out the careful selection using of the
super-low-noise type with few collector output capacitances with a linear
region improve a circuitry fundamentally and large to a using transistor,
and high and high region cut-off frequency,It drives with a negative power
source, the electric current of many of Japanese predefinedpredefineds is
further sent through each circuitry, and low impedance-ization is attained.
The large-sized Troy Dahl power transformer is adopted as a power-source
Moreover, a preamplifier part, the predrive stage, and the power stage are
another formulated, the efficiency ratio of a power source is raised, and
the improvement in a distortion property is aimed at.
In order to advance positively shortest-distance-izing from each input
terminal to an amplifier circuitry, and exclusion of shielding wire and to
aim at the improvement in a performance, it is dared to form the input
terminal plate in the bottom.
the LUX scheme NF type is adopted as a tone control, and also the object
for high regions and the method of low-pass have prepared the curving
point frequency switchover 2 points every. A defeet is also possible for
this tone control.
In others, filter circuits, such as a Subsonic Filter, a low cut-off
filter, and a high cut-off filter, a monitor & dubbing functionality, a
speaker selector, a loudness control, -20dB audio Attenuator, etc. are
A separation using of a preamplifier part and a power amplifier part is