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| McIntosh MC2600 |
1,000,000yen(1990 release) |
Stereo power amplifier announced as the top who
attained the maximum output and the minimum distortion simultaneously in the mac
power amplifier group, and a model.
The stereo has realized Oide power
of 1200W in 600W+600W and a mono-operation of bridge connection. Since this
consecutive output is using the output transformer, it does not change to
2ohm-8ohm (they are 1ohm-16ohm at the time of a monophonic recording).
Moreover, the power margin which can supply the dynamic power of 2,200W+2,200W (at the time of a mono-operation 4,400W) is realized also to a heavy load lower 80% than a rated impedance. And it has the output current capacity which attains to 200A at the maximum, and the powerful speaker drive is realized.
The
power device of a total of 36 9 parallel is adopted as an output stage, and the
exothermic is reduced by the large-sized heat sink or the automatic tracking
bias circuit with the operational stability of the power stage by an output
lance. Furthermore, when a prolonged high power operation continues, the low
undesired-sound heat-dissipation fan of two velocities operates, and
low-temperature degree operation-ization is attained.
Moreover, in
preparation for an emergency over-temp, the auto-return type power-source
contact breaker is built in.
In order to correspond to the excessive
input exceeding a clipping output, the power guarding system original with a mac
is carried, and gain is automatically dropped at the time of an excessive input.
Moreover, to excessive electric currents, such as output short-circuit, the
sentry monitor system is controlling the output current.
The new mac
circuit which does not generate crossover distortion, loading of a balanced
amplification, and strict impedance distribution of each stage and examination
of a stream-composition part were given to the circuitry, and the low distortion
is realized to a minute output area with the Oide power amplifier in it.
The large-current capacity gilding terminal is adopted as an
output-terminal.
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| Form |
Stereo power amplifier |
Output
(sinusoidal consecutive output) |
stereo: 600W+600W (2ohm, 4ohm, 8ohm)
mono: 1,200W (1ohm, 2ohm, 4ohm, 8ohm, 16ohm) |
| Output load impedance |
stereo: 2 ohm, 4ohm, 8ohm
mono
parallel: 1 ohm, 2ohm, 4ohm
mono bridge: 4ohm, 8ohm, 16ohm |
| Output frequency band |
20Hz - 20kHz |
THD
(20Hz - 20kHz) |
stereo: 0.005% or less (250mW-600W, both channel operation)
mono: 0.005% or less (250mW-1200W) |
Cross modulation distortion
(20Hz - 20kHz) |
stereo: 0.005% or less
(It is about a single-sided channel at the less than peek 1,200W and both
of channel operations time. )
mono: 0.005% or less (a peek and less than 2,400W)
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Frequency band
(at the time of 1W output) |
20Hz-20kHz+0 -0.26 dB
10Hz-100kHz+0 -3
dB |
| SN ratio |
105dB or less (at the time of an Output
power A Wei Ted) |
| IHF dynamic head room |
1.7dB |
| Dumping factor |
40 or more |
| Input impedance |
20kohms (unbalance)
40kohms
(equilibrium) |
| Input sensitivity |
1.4V and 2.5V switching |
| Power guarding |
It is less than THD2% to over-drive 14dB at 1kHz. |
| An attached functionality |
The power meter of an illumination with a
voltage regulator
The meter window changeover switch of WATTS/HOLD
Right-and-left independent gain volume
Headphone monitor termination
Speaker on/off switchpoint |
| Power source |
AC100V, 50Hz/60 Hz, 2A-24.5A and 15A,
Underwriters Laboratories/CSA |
| Dimensions |
Width 483x height 267x depth of 457mm
(termination included)
Handle path clearance 44mm |
| Weight |
59kg |
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