Onkyo TX 4500 Owners Manual

Page 2

Features

Quartz Locked Tuning Creates A New Degree of
Tuning Accuracy

in a radical departure from conventional FM tuner design
principles, ONKYO engineering has created a quartz
oscillator controlled circuitry for the most accurate
station tuning possible. A superbly stable frequency

is generated in a quartz oscillator, and this unvarying
frequency becomes the reference for the tuned stages

of the FM circuits. Even the slightest deviation from
ideal tuning conditon is detected instantly and
compensated automatically, assuring razor-sharp tuning
and minimum distortion at all times.

Automatic Human Touch Sensor"

As you touch the tuning knob, a special sensor circuit
detects your touch and releases the abovevnamed quartz
lock. Then, after you have tuned in another station and
released the knob, the quartz circuit locks again. You
need not even tune in a station very precisely, as the
quartz lock will automatically compensate for tuning
errors.

Enormous Reserve of Output Power

The ultramodern, all direct coupled amplifier section
delivers 55W of clean Onkyo power per channel
(Minimum RMS power) into 852 ,over the entire
frequency range from 20Hz to 20kHz, with both
channels driven, at no more than 0.1% total harmonic
distortion. in practical terms, this means that you have
a tremendous reserve of power available to handle even
sustained high volume levels and signal peaks without
driving the amplifier into clipping distortion.

Total Control Over What You Hear and How

In addition to the standard balance, high and low filter,
mode and loudness controls, the TX4500 features
click-stop volume and tone controls giving accurately
reproducible settings. Its FM Muting Lock switch
eliminates inter~station noise on FM, and its Dolby
Adaptor switch establishes the correct (25 psec)
deemphasis for Dolby processed FM broadcasts.

Prepared for Future System Expansions

As the system connections diagram on pages 8 8: 9.
illustrates, the TXa4500 can serve as the heart of an
astounding, elaborate audio system for home and
professional uses. it can drive three pairs of speakers,
can accommodate two turntables and three (1) tape
decks, a Dolby noise reduction adaptor, an FM
4-channel decoder for areas with 4-channel FM
broadcasting, and it can even be adapted for such
advanced applications as equalizer,

multi-arnplifier and PA. system. The TX-4500,
in other words, knows few limits.

Massive, Modernistic Styling

Technological excellence inside has its counterpart in
the solid looking external appearance with its
protruding glass panel and heavy battery of

controls.

*** WARNING***

TO PREVENT FIRE OR SHOCK

HAZARD DO NOT EXPOSE THIS

APPLIANCE TO RAIN OR MOISTURE.

* DOLBY" is A REGISTERED TRADEMARK
OF DOLBY LABORATORIES INC.