Kenwood
KR-9400 AM/FM Stereo Receiver
Thr Kenwood
KR-9400 stands as one of the truly great stereo receivers of the world, meeting
the demands of th emost critical purist with the power, performance, and
flexibility usually found only in the most expensive of separate components.
The KR-9400 is the culmination of years of research and development on the part
of Kenwood's engineering team, who have designed this very special unit with
but one purpose in mind; to achieve the highest possible performance,
regardless of cost.
A
masterpiece of engineering with features never before incorporated in a stereo
receiver.
Unique
Kenwood Triple-Function Meter converts from Signal Strength Meter to Multipath
detector to Deviation Meter at the touch of a button.
New
Tape-Through Circuit permits tape-to-tape dubbing while you listen to another
program source
New kenwood
Injection Circuit mixes sound from any source into tape-to-tape dubbing
Triple Tone
Controls provide full Bass, Treble, and Mid-range tonal compensation, with
Defeat Switch for completely flat response.
Phase-Lock-Loop
MPX Circuit; delivers exceptional FM-stereo separation for vivid directionality
Dolby FM
Switch ; provides for the addition of a Dolby FM Adapter for best reception of
Dolbyized FM broadcasts.
The Tuner
Section
Famous the
world over for the exceptional performance of its tuners, Kenwood outdoes its
own reputation with the superb performance of the AM,FM and FM-stereo tuner
section of the KR -9400
The FM Front
End. To achieve the theoretical limit in FM sensitivity (1,7 µV), the KR-9400
incorporates an insulated dual-gate MOS-FET, combined with four separate tuned
circuits. The extremely linear input of the r.f. stage is virtually impervious
to cross-modulation and other forms of overload distortion.
The FM-IM
Section. The high alternate channel selectivity (*) dB) and the remarkable
capture ratio (1,3 dB) of the KR-9400 are the direct result of the permanently
aligned solid state i.f. filter, a multi-function IC and five bi-polar
transistors in the i.f. stage.
The
Phase-Lock Loop Stereo Multiplex Decoder Section.
The kR-9400
provides extremely high FM-stereo separation throughtout the audio spectrum,
thanks to the newly developed
phase-lock-loop IC circuit incorporated in the stereo FM decoder section,
achieving more than 45 dB separation at 1 kHz; better than 35 dB at all
frequencies from 30 Hz to 10 kHz.
The
amplifier Section
The KR-9400
is the most powerful stereo receiver Kenwood has ever built, delivering a
minimum of 120 watts of contiuous power per channel into 8 ohms speakers, both
channels driven, 20 Hz to 20 kHz, with no
more thn 0,1% Total Harmonic Distortion
Direct-Coupled,
Pure Complementary Symmetry Output Circuit
Kenwood;s
advanced engineering eliminates the coupling capacitor between output and speakers, so no distorting element
stands between you and the music. As a
result you enjoy flat frequency response from ultra-lows to highest highs, a
high damping factor (50 at 8 ohms), faithful bass response throughout the audio
spectrum.
Large Power
Transformer, Oversize Heat Sinks. A cool-running power transformer and massive
heat sinks form the heart of a dual positive-negative power supply to the
high-output transitors stages. This nocompromise design assures safe, cool
operation even under continuous full-power output.
ASO
protection Circuit. Kenwood 's "Area of Safe Operation" protection
circuit will not interrupt your listening as long as the KR-9400 is operating
within safe limits.shopuld those limits be exceeded, however, the sensitive
electronic circuit with relay instantly disengages speakerrs.
Unique
" Tape-Through" Circuit. The double tape monitoring facilities of the
KR-9400 permit recording simultaneously onto two tape decks or dubbing from ona
deck to the other. A unique "Tape-Through" cicruit carries recording
convenience a step further by permitting the dubbing process to continue
uninterrupted, even while the KR-9400 is being used to play another program
source. Its's like owing two stereo systems in one.
The
Preamplifier Section
The
precision equalizer-phono preamplifier
section of the KR-9400 uses low-noise metal-encapsulated transistors to deliver
an exceptionally high Signal-to-Noise ratio and assure utmost circuit
reliability. Up to 300 mV (P-P) of input signal can be accomodated at less than
0,1% total harmonic distrotion, from a mere 2,5 mV phono input sensitivity.
Specifications
FM Tuner
Section
Usable
Sensitivity (IHF): 1,7 µV
Quieting
Slope ( at 5 µV / 10 µV / 50 µV): 56 dB
/ 63 dB/ 72 dB
Signal-to-Noise
Ratio: 72 dB
Capture
Ratio (IHF): 1,3 dB
Selectivity
Alt. Ch (IHF): 80 dB
Stereo
Separation ( at 1 kHz / 10 kHz): 45 dB /
35 dB
Total
Harmonic Distortion:
Mono : 0,3%
Stereo
: 0,5%
Image
Rejection Ratio: 80 dB
IF
RejectionRatio: 100 dB
Harmonic
Spurious Rejection: 90 dB
AM
Suppression: 55 dB
Sub-Carrier
Suppression: 62 dB
Antenna
Impedance: 300 Ω balanced; 75 Ω
unbalanced
AM Tuner
Section
Uasble
Sensitivity (IHF): 15 µV
Signal-to-Noise
Ratio: 50 dB
Selectivity
(IHF): 35 dB
Image
Rejection Ratio: 70 dB
IF Rejection
Ratio: 70 dB
Main
Amplifier Section
Power
Output: 120 watts per channel
Intermodulation
Distortion: 0,1%
Preamplifier
Section
Input
Sensitivity/Impedance
Phono 1 and
2: 2,5 mV / 50 k Ω
Aux, Tape
Play A, B: 150 mV/50 k Ω
MIC : 2,5 mV / 50 k Ω
Hum and
Noise
Phono 1 and
2 : 70 dB
Aux and Tape
: 93 dB
Mic : 65 dB
Output
Voltage/Impedance
Tape Rec A,
B
PIN : 150 mV/ 100 Ω
DIN : 30 mV/80 k Ω
Tone
Controls
Bass : ±10 dB at 100 Hz
Midrange
: ±10 dB at 800 Hz
Treble
: ±10 dB at 10 kHz
Loudness
At 100 Hz
: 8 dB
At 10 kHz
: 5 dB
Filters
High
Filter: 12 dB/oct turnover 7 kHz
Low
Filter: 12 dB/oct turnover 100 Hz
Power
Requirements: 110/120 V 50/60 Hz
Power
Consumption: 415 watts at full power; 60
watts at no signal
Dimensions
(W x H x D): 21-15/16" x
6-9/16" x 15-9/16"
Weight: 45,4 lbs
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