Audio Database
ST-1100X
Commentary

High-end stereo component for FM multi-broadcasting.

The ST 1100 x is composed mainly of Trio's top-of-the-line FM multi-stereo tri-amp.


Receiver section

The FM tuner section is equipped with a high-sensitivity FM multi-stereo tuner using New Vista, triple varicon and double limiter.
The AM tuner section also contains an AM tuner with high frequency amplification that is comparable to the sensitivity of a communication type receiver.


Player part

The player uses a direct needle pressure reading pipe arm and a hysteresis synchronous motor.

The MC type stereo cartridge V-45 is used for the cartridge.


Speaker part

3-way 4-speaker configuration is adopted.

A 30 cm cone type woofer is installed in the low range.
The mid-range is equipped with a 10-cm cone scoker, and the high-range is equipped with two horn tweeters.

Model Rating
Type Stereo component
Receiver Section
Tuner Section
Receiving frequency FM 76 MHz to 90 MHz
AM 535 kHz to 1,605 kHz
Sensitivity FM 1.4 μ V/84MHz (30% modulation, S/N20dB)
AM 2.0 μ V/1000kHz (30% modulation, S/N10dB)
Image ratio FM 50 dB or more
AM 60 dB or more
Frequency characteristic 20 Hz ~ 20 kHz ± 1 dB (FM)
Signal-to-noise ratio FM 65 dB or More (100% Modulation, 100 μ V Input)
AM 45 dB or More (30% Modulation, 1 mV Input)
Separation FM 38 dB or More (400 Hz)
Distortion factor 1% or less (400 Hz, 100% modulation)
Amplifier Unit
Output 60W (30W + 30W, Music Power, 1% distortion)
Frequency characteristic 20 Hz ~ 50 kHz ± 1 dB (Output 500 mV)
Input sensitivity (1 kHz input required for 25W output) MAG:1.5mV
Tape HD:1.4mV
Xtal:15mV
Aux, Tape play : 95 mV
SN ratio (maximum volume adjustment, flat tone control, 25W output) MAG, Tape HD : 55 dB or more
Aux, Tape play : 70 dB or more
Residual noise 0.6 μ W (minimum volume adjustment)
Damping factor 9
Entire Receiver Section
Accessory function New Vista (6CW4) Cascode Tuner
FM stereo display unit
FM AFC
Low embryo filter
Loudness control
Equalizer amplifier (DC ignition)
Tape monitor
Stereo headphone jack
Used vacuum tubes, etc. 7189x4 and others
Total 24 balls 10 diodes
Pwer 100 VAC / 117 V, 50Hz/60Hz
Power consumption 200VA
<Player Part>
Model Name ST-1100XP
Cartridge Section
Cartridge MC Type (V-45)
Needle tip 0.7 mil diamond needle
Output voltage 5 mv (1 khz, 5cm/s)
Output balance Within ± 0.5 dB (7 kHz)
Frequency characteristic 15 Hz to 20 kHz ± 1 dB
Crosstalk 100 Hz : -25dB or less
1 kHz : -30dB or less
10 kHz : -20dB or less
Compliance 20x10-6Cm / dyne (both horizontal and vertical)
Needle pressure 0.5 ~ 3g (Proper Needle Pressure 1.5 ~ 2.5g)
Vertical tracking angle 15 degrees
Dead weight 15g
Mounting Dimensions JIS and EIA standards
<Turntable portion>
Drive motor Condenser phase-advancing 4-pole hysteresis synchronous motor
Turntable 30 cm aluminum die-cast, 12 kg
Number of revolutions 16 2/3, 33 1/3, 45, 78 rpm
Wow Not more than 0.2%
Tone Arm Section
Format Static balanced type pipe arm
Needle pressure direct reading type
4-terminal plug-in type
Speaker Unit
Model Name ST-1100X R/L
Method 3-Way, 4-Speaker, Bass Reflex System, Floor Type
Units Used For low band : 30 cm cone type
For Medium Range : 10 cm Cone Type
For High Frequency : Horn Type x2
Frequency characteristic 45 Hz to 20 kHz
Max Input 30W
Crossover frequency 800 Hz, 5 kHz
Network LC Type
<General>
External dimensions Width 2,230x Height 700x Depth 465 mm
Weight 93kg