An advanced
professional AM/FM stereo tuner, with unique P.L.L. MPX circuit, dual-gate MOS
type FETs in the FM front end, and outstanding performance.
The TX-9100
is Pioneer's finest tuner, a stereo achievement designed to significantly
reduce the distance between your music listening room and broadcast stations.
Offering what is certainly one of the finest FM sensitivity ratings ever
built-in to a tuner, the TX-9100 is an incomparable blend of solid state
circuitry and design, the most advanced unit of its kind available today at any
price.
The TX-9100
employs a 5-gang variable capacitor and low-noise dual-gate MOS-type FETs in
its FM front end, resulting in a 1,5 µV (IHF) sensitivity, Pioneer has employed
"phase-linear" ceramic filters in the IF section, coupled with a
6-stage limiter by monolithic Ics with differential amplifiers. All of this
circuitry results in a 90 dB (IHF) selectivity charactereistic, as well as
improved phase characteristics and signal-to-noise ratio of 75 dB. Capture
ratio is also distinctive, measured at 1 dB (IHF).
Performance
characteristics aside, the TX-91000 is a superb example of the application of
advanced circuitry to music enjoyment. Its new-dimensional PLL (Phase Lock
Loop) multiplex-circuit improves the multiplex function considerably and is
based on an entirely new principle. Since the coils and capacitors of the
conventional 19 kHz and 38 kHz resonance circuits is immensely durable,
reliability and stability are assured. There is also a special PNS (Pulse Noise
Suppressor) built-in to the TX-9100 that cancels irritating pulse noise such as
automobile or motorcycle ignition noise. But more than any one thing, excellent
sensitivity stands together with excellent rejection characteristics. And what
this means is the finest performance ever offered by a tuner, under all common,
and some uncommon, operating circumstances.
Special
Features:
Outstanding
FM Front-End section with Dual-Gate MOS FETs, 5-Gang variable capacitor and
two-stage RF amplifiers.
Phase-Linear
ceramic filters in the FM IF section for excellent selectivity and phase
characteristics.
Local
oscillator with buffer circuit.
6-stage
limiter in FM IF section with all-stage differential monolithic ICs.
New
dimensional Phase Lock Loop (PLL) MPX circuit.
Sharp
low-pass filter that cancels carrier leaks.
Two-step FM
muting switch.
Double
action FM muting with reed relay.
Pulse Noise
Suppressor.
Signal
strength meter with excellent linearity.
MPX Noise
filter.
Multipath
output terminals.
AM tuner
section with 3-gang variable capacitor and resonance type one-stage RF
amplifier.
High-Performance
AM IC.
Independent
AM, FM output level controls.
Headphone
output jack provided.
Smooth
tuning mechanism.
Specifications
FM Section
Circuitry: 3 MOS FETs; 2-stage RF amplifier; 5-gang variable capacitor; 6-stage limiter;
PLL MPX circuit
Usable
Sensitivity (IHF): 1,5 µV
Capture
Ratio (IHF): 1 dB
Selectivity
(IHF): 90 dB
Signal-to-Noise
Ratio: 75 dB
Image
Rejection ((8 MHz): more than 110 dB
IF Rejection
(98 MHz): 110 dB
Spurious
Rejection: more than 110 dB
AM
Suppression: 65 dB
Harmonic
Distortion:
Mono : less than 0,2%
Stereo
: less than 0,3%
Frequency
Response:
20 Hz to 15
kHz (+0,2 dB -2,0 dB)
50 Hz to 10
kHz (+0,2 dB -0,5 dB)
Stereo
Separation:
More than 40
dB at 1 kHz;
More tha 30
dB at 50 Hz - 10 kHz
Subcarrier
Suppression: 65 dB
Antenna
Input: 300 Ω balanced; 75 Ω unbalanced
Muting: 2-step level switch
MPXNoise
Filter: On-Off
AM Section
Circuitry: 1-stage RF amplifier; 3-gang variable
capacitor;
Sensitivity: 300 µV/m (IHF, ferrite antenna); 15 µV (IHF)
Selectivity: 40 dB
Signal-to-Noise
Ratio: 50 dB
Image
Rejection: more than 65 dB
IF
Rejection: more than 85 dB
Antenna: Built-in ferrite loopstick antenna
Audio
Section
Output
Level/Impedance:
Fixed
: 650 mV/4,7 k Ω
Variable
: 70 mV to 2 V / 300 Ω
Headphone
: 150 mV (8 Ω)
Semiconductors: 6 FETs;
9 ICs; 34 Transistor; 26 Diodes
Power
Requirements : 120 V 60 Hz (USA, Canada)
or 110, 120, 130, 220, 240 V (switchable) 50/60 Hz
Power
Consumption: 30 watts
AC
Outlet: 1 unswitched
Dimensions
(W x H x D): 430 x 138 x 345 mm
(16-15/16" x 5-7/1" x 13-19/32")
Weight: 8,9 kg (19 lb 10 oz) net