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| McIntosh C42 |
650,000yen(around the 1999 time) |
Control amplifier which applied the polish to the
technology and know-how which were cultivated until now further based on C40 and
with which the enhancement was performed.
The equalizer circuitry using
the operational amplifier of the advanced design is adopted, and the distorted
property and the Noise Figure are driven in by optimal NFB. Moreover, the highly
precise metal film resistor and the high-definition polypropylene capacitor are
thrown in so that it may become a strict RIAA curve property.
The
electromagnetic switch of the reed relay type digital-signal d Obtained and
controlled to the switching element of nine input/output signalses is used, and
the failure of a signal is reduced.
After this relay plates with gold, by the rhodium and the ternium, it performs
a plating treatment again, and is improving the robustness in a contact
part, and also has prevented the incrementation in the contact resistance
by corrosion using the glass tube which enclosed inert gas for the relay.
Furthermore, harnessing the distinctive characteristics of such an input selector functionality, by C42, by separating a controller part
and a digital disposal circuit, the shortest distance is arranged from an input
to an output, and purification of the signal is attained.
8 band
equalizer functionality which extended five conventional bands further as an
equalizer functionality is carried.
this equalizing functionality a play system and a sound-recording system
it can use, switching, respectively, and also by a center position, an
equalizer circuitry will be in the status of OFF completely, and the flat
frequency characteristic will be acquired.
The
digital control Attenuator of a full balance design is adopted. This has
obtained the extensive dynamic range which amounts to 0.5dB and a warm control
of 213 steps, and 116dB.
Moreover, by using the dual monolithic driven with the serial data of four
attenuator and 16-bits, in order to perform a balance transmit to a control
circuit, the step error has realized the precision of 0.05dB or less in
a variable span of 0.5dB.
The digital noise is stopped with the
built-in zero crossing detector at the time of up and down of a volume.
A volume is displayed in the center of a panel by decibel or % with a
blue 4-figure vacuum fluorescent tube, and also a balance coordination on either
side is displayed.
The source trim functionality in which input level
can be arranged is built in.
If this switchpoint is turned ON when the
rocker switch is carried and it does not use it for a long period of time, it is
possible to also save the value which would be in the stand-by state and carried
out memory to the main unit.
The possible individual listen
functionality and sound-recording input optional feature of hearing other
sources simultaneously are carried recording the one source with two input
selectors.
The equalizer for a sound field correction etc. is
connectable with a play system and each sound-recording system with a dual
processor loop functionality.
Moreover, the on/off switchpoint of the
processor loop is formed in the front panel.
Wireless remote control is
attached.
|
| Form |
Audio control center |
| Frequency characteristic |
20Hz-20kHz+0 -0.5 dB |
| THD |
0.002% or less (at the time of an Output
power 20Hz - 20kHz) |
| SN ratio (A-Weighted) |
Phono:86dB
High Level:97dB
|
| Output power |
2.5Vrms (Main, Output1, 2) |
| Maximum output voltage |
10Vrms (Main, Output1, 2) |
| Output load impedance |
240ohms |
| Input impedance |
Phono: 47kohm, 65pF
High SFT Level:
22kohm |
| Input sensitivity (at the time of an Output
power) |
Phono:4.5mV
High Level:450mv
|
| The maximum input signal |
Phono:50mV
High Level:5V
|
| voltage gain (gain) |
Phono -> Tape out: 40dB
High SFT
Level -> Tape out: 0dB
High SFT Level -> Main out: 15dB
|
| 8band special-NetWare-program equalizer
|
20Hz, 35Hz, 70Hz, 150Hz, 300Hz, 600Hz,
1.2kHz, 4kHz
±12dB |
| AC remote power source |
RCT translator (remote power-source
terminal) adjunct |
| Power source |
AC100V, 50Hz/60Hz |
| Power consumption |
30W |
| Dimensions |
Width 445x height 150x depth of 470mm (a
knob, a termination included) |
| Weight |
11.5kg |
| Adjunct |
Wireless remote control HR-100 |
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