JBL Decade L36 User Manual

3. Once the Presence control has been adjusted to
provide the most pleasing balance between the low
frequency and midrange transducers, set the Brilliance
control at "0." If high frequency material —such as
cymbals, bells, triangles, violin overtones or vocal
sibilants —seem too prominent, lower the setting of
the Brilliance control. If greater high frequency output
is desired, increase the setting of the control.
After each set of adjustments, again listen to a variety
of program material until the ear has become attuned
to the new characteristics and can compare them to the
previous performance of the system. Once the Presence
and Brilliance controls have been set for the most
pleasing overall results, and the exact placement of
•each loudspeaker has been determined, compensation
for differences in individual recordings should be
made with the tone controls on the amplifier or receiver.
The specified power capacity indicates the continuous
program power level that can be accepted by a JBL
loudspeaker system without damage. Its peak power
capacity is considerably greater than the continuous
rated value, as indicated by the remarkable transient
response of JBL loudspeaker system components. The
Decade 36 will reproduce clean sound at comfortable
listening levels when driven by an amplifier having an
output of as little as 10 Watts RMS per channel.
4
However, for reproduction of the full dynamic range
of contemporary recordings at high volume, a quality
amplifier delivering up to 100 Watts RMS per channel
will provide optimum performance. In normal high
fidelity applications an amplifier should never be
operated with its volume control at maximum, yet
such an amplifier has the reserve power necessary for
accurate reproduction of transients, which can reach
momentary peaks equivalent to ten times the average
power level.
If distortion is heard, one or more of the sound system
components is operating beyond its capacity (assuming
each component is properly adjusted) and the overall
volume level of the sound system should be reduced.
In almost all cases, the acoustic level generated by a
JBL loudspeaker will become noticeably discomforting
to the ear before the loudspeaker can be damaged by
excessive power from the amplifier. There is virtually
4. The RMS (root mean square) rating of amplifier power
is the most stringent method currently used in the audio
industry. An amplifier rated at 60 Watts RMS per channel,
for example, is generally considered to be a high-powered
unit. The same output expressed in terms of "Music Power"
would be 160 Watts.
8
PO\ vEk CAPACITY

JBL Decade L36 Specifications

General

Brand	JBL
Model	Decade L36
Category	Speakers
Language	English