||980,000yen(April, 1994 release)
Stereo power amplifier which compiled years of
technical store recording and the know-how into one book.
system consists of a whole page balance stream composition and a 10 parallel
push pull output, and has realized the low-distortion output.
irrespective of a load impedance, the output transformer enables the fixed high
power supplying, and is equivalent also to the low-impedance speaker with the
output current which reaches Peek 115A.
The temperature rise is reduced
by a total of eight large dimension heat sinks or an original efficient
amplifying circuit, and the air cooling without blower is realized.
Furthermore, seven protection networks, such as a temperature protection
with which an emergency over-temp was equipped, a sentry monitor, a turn-on
delay, a power guarding system that prevents clipping distortion, were carried, and it has taken all possible measures.
The power guarding serves as a
patent circuitry which makes possible an over drive of a maximum of 14dB until
it controls input voltage automatically and distortion reaches to 2%, comparing
the wave of an input/output. This has prevented the destructive of the speaker
by clipping distortion.
Moreover, the effluve of DC electric current which
occurs in the outage of an output transistor etc. by an output transformer is
The power meter which displays true output power correctly by
the product of a voltage and an electric current is carried.
This meter has
one about 10 times the speed of response of this compared with VU meter for
pros, and if a pointer reaches a peek in WATTS mode, after only the time
recognized by people's eye will stand it still, it descends. Moreover, in HOLD
mode, it is fixed at the upper of peek power, and if there is no output beyond
it, it will descend slowly the velocity for 6dB/.
The circuit board
serves as module construction which uses a gilding connector.
gilding output terminal of a banana-plug correspondence is adopted as a speaker
terminal, and an interconnection of the cable of 5mm of core thickness of a
lines is also possible.
The bridge operation functionality which can be
used also as monophonic amplifier of Output 1000W is carried.
digital logic remote power control terminal which can be operated from the
control center of a mac is carried.
When two or more generation is
connected, the delay circuit for 1/tens of second works, and a convergence of a
rush current is prevented.
||Stereo power amplifier
|Output power (sinusoidal consecutive output)
||stereo: 500W+500W (2ohm, 4ohm, 8ohm)
mono: 1,000W (4ohm, 8ohm, 16ohm)
||stereo: 2 ohms, 4ohm, 8ohm
mono: 4 ohms,
|Output frequency band
||20Hz - 20kHz
|THD (20Hz - 20kHz)
||0.005% or less (250mW - Output power)
|Cross modulation distortion (SMPTE)
||0.005% (when peek power does not exceed the
twice of an Output power at the moment)
||20Hz-20kHz+0 -0.25 dB
|SN ratio (A network)
115dB (at the time of an Output
|IHF dynamic head room
||200 (4-ohm output)
||Prevention from clipping. It is less than THD2% to over-drive 14dB in
||AC100V, 50Hz/60 Hz, 14.4A (Underwriters
||Width 445x height 255x depth of 491mm