Amplificator Technics SU-A707 MOS-FET Class AA stare buna, poze reale
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Produs:Second Hand, Fără garanție
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Numar articol:189614960
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Disponibilitate:Indisponibil
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Preț:
199,00 €185,00 € -
Anuntul a expirat la:30.04.2018, 14:45
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Specificatii
Technics SU-A707 MOS-FET
Class AA
Stare foarte buna, usoare urme pe capac (foto reale), face parte din ultima generatie de amplificatoare hi-fi ale marcii.
Fara
reparatii.
Telecomanda
NU mai este disponibila, ca urmare NU e inclusa, dar functioneaza
cu majoritatea telecomenzilor Technics de amplificator sau
receiver.
Poze reale! Ce vedeti e ce primiti!
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Specificatii:
Technics SU-A707
VGCA (variable gain control amplifier)
DVD audio ready
Super linearity and super sound quality MOS Class AA circuit
Advanced TA-KEH II electrolyte capacitors for high quality
sound
R-core transformer helps eliminate magnetic flux leakage
70W x 2 high power output (DIN 4 ohms)
Technics Remote Control System designed for high sound quality
7 position input selectors (Tape 1, Tape 2/MD, Aux, DVD, CD, Tuner,
Phono)
A and/or B speaker selector
Tone controls at VIA TONE position
Balance control
Muting switch (by remote control)
Headphone jack
Manufacturer: Technics
Model: SU- A707
Year of construction: 2000/2001
Made in: Japan
Color: Black or silver
Type: Built-in stereo amplifier
Remote Control: Yes , 45 keys ( RAK SUA11WH
)
Power consumption:
Dimensions: 430 x 136 x 368 mm ( WxHxD)
Weight: 7.4 kg
Price about :
connections
Number of inputs:
Phono MM
AUX
tuner
CD
Tape1
Tape2/MD
DVD
Number of Outputs:
Tape1
Tape2/MD
Specifications
Continuous Power Output : DIN : 70W x 2 ( 4 Ohm)
, 55W x 2 ( 8 ohms) / 20Hz to 20kHz : 45W * 2 ( 8 Ohm )
THD at rated power ( 20H to 20kHz ) : 0.03 % (8
Ohm)
Frequency response: Phono MM: RIAA curve : + /
-1dB ( 30Hz to 15 kHz , CD, AUX , TUNER, TAPE 1 , TAPE2 , DVD: 3Hz
to 100kHz (+0 dB , -3dB)
Signal to noise ratio (nominal ) : Phono MM:
75dB ( 76dB , IHF '66 ), CD , AUX , TUNER, TAPE 1 , TAPE2 , DVD:
102 dB ( 100 dB , IHF '66 )
Signal to noise ratio ( Rated Power into 4 ohms
) : 114dB (IHF A, S = 2V)
Input sensitivity and impedance : Phono MM: 2.5
mV/47kOhm , CD, AUX , TUNER, TAPE 1 , TAPE2 , DVD: 150mV/22kOhn
Special Features
Circuit concept MOS Class AA
Relay input selector
Speaker Selector A / B ( behind the lower cover
flap )
Balance / bass and treble controls ( behind the
lower cover flap )
A lower cover of tinted plexiglass opens at the
touch
The original low-noise amplifier VGCA (Variable Gain Control
Amplifier) is adopted as an amplifying circuit.
The amplifier stream composition which extracts a signal and is
amplified after that in the conventional input volume in this
circuitry is stopped, and only a part to be amplified gives gain to
amplifier by changing the gain of an amplifier part itself, and it
is made to operate as buffer amplifier in the gain not more than
it. Moreover, the sound-volume control is performed in the volume
which interlocks after amplifier. This has realized the play in the
usually used volume location of a clearer sound.
The MOS ClassAA circuitry which adopted based on the ClassAA
circuitry and adopted MOS FET as the amplification element is
carried.
In the ClassAA circuitry, individual amplifier is performing the
voltage amplification and the current supply source, and high power
and perfect Class-A voltage control are realized.
In the MOS ClassAA circuitry carried in SU-A808, an input impedance
is very high in the last stage which controls the output-terminal
of pure Class-A voltage control amplifier, and has adopted the
amplification element MOS FET excellent in the linearity as it.
Moreover, there are few losses, the bipolar transistor which is
acknowledged in the Oide power operation is adopted as the final
stage of current-supply-source amplifier, and the correspondence to
a digital format of a DVD-Audio etc. is aimed at to it according to
the class AA bridge effect of demonstrating the benefit of each
amplifier to the maximum extent.
Magnetic flux is uniform, R core power transformer with circular
core cross-section form is adopted as a power transformer, in order
that there may be no joint in a core, there is very little leakage
magnetic flux, and the noise occurrence by a magnetic field is
suppressed.
The capacitor using the separator which blended the bamboo fiber is
adopted as an electrolytic capacitor, and the tone quality which
stopped an unnecessary incidental sound is realized.
The gilding RCA termination is adopted.
The speaker termination corresponding to a banana plug is
carried.
System remote control is attached.
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