|220,000yen(around the 1996 time)
The Integrated Amplifier which inherited the design philosophy of POA-S1 and
PMA-S1 and aimed at coexistence under [ high order ] delicacy and forcibleness.
The large current type magnification element UHC MOS is adopted as a
Current supply capability is improved a bipolar
transistor and more than equivalent, and UHC MOS serves as an element which also
has a sound quality merit of MOS FET with it.
Furthermore, in order to pull
out the capability of this element to the maximum extent, the cascode bootstrap
system is adopted.
With the cascode bootstrap system, ideal load to the
electric power magnification stage was realized, and simple and straight
composition is attained.
Furthermore, the sauce resistance which was the
cause which soils sound quality is also eliminated taking advantage of the
stability of UHC MOS.
A large-sized power transformer and a large-sized
block capacitor are adopted as a power-source part, and the power and the sense
of stability of an UHC single push pull circuit are raised more.
rigid high sheet steel was adopted as the chassis, and copper coating excellent
in the shield profit cause has been performed.
Furthermore, a sintered alloy
insulator is directly fixed to a chassis, and vibrationproofing structure is
The Phono equalizer is equivalent to both the types of MM/MC.
In order to attain simple & straight-ization of a signal course, when
not using tone control, the tone-defeat switch which separates a tone circuit
completely from a signal course, and enables a straight play is carried.
|<Power amplifier part>
50W+50W (8 ohms, 20Hz
||0.07% (1kHz, 8ohms)
|Speaker output terminal
||Phono MM: 2.5mV/47kohm
Phono MC: 200
|Equalizer amplifier output
||Rec Out: 150mV of Output powers
|Signal to noise ratio
|Power supply voltage
||Width 434x height 137x depth of 365mm