Thorens td 124 service manual

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THORENS TD 124 I/II

SERVICE MANUAL

ELPA MARKETING INDUSTRIES. INC.

NEW HYDE PARK, NEW YORK 11040

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l.

RUMBLE AND NOISE LEVEL
The following preliminary remarks should first be made:

-A perfectly silent running turntable does not exist. The widely
extended bass reproduction of today's best loudspeakers and

amplifiers may accentuate the turntable noise level.

-The noise level present on the pressed records currently avail-
able is at least equivalent, but in most cases superior, to the

rumble level of a TD 124 model turntable.

-A direct recording lacker alone, specially cut on one of the
best recording machines presently available, should be used for

measuring or evaluating the rumble level of a good turntable.

«The objective measurement of the rumble level, of a turntable,
is not a simple matter. It requires elaborate laboratory
_ instrumentation and extreme care. But furthermore, the results
will be widely different according to the measurement method
employed. The THORENS TD 124 turntables are measured according

to the DIN standards.

NORMALIZED AUDITION CQNDITIONS

Every objective evaluation of the rumble and noise level of a
turntable requires that well defined, audition conditions be

realized.

A record should be selected, for auditioning, that is widely
accepted as an excellent orchestra recording and not one with an
overall too low level and lacking in bass. Then, playing a

Portissimo passage, the volume control should be adjusted to