Manual JBL k2 s9800 s e mahogany hoogglans (page 25 of 30) (English)

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Four identical amplifiers (or two dual

channel units) may be used, although

specialized low and high frequency

amplifiers offer clear advantages. T h e

P roject K2 specialist dealer can recom-

mend the amplification that will best

suit individual needs.

In all cases, the left and right amplifi-

ers for each section must be identical.

Make sure that the input sensitivity of

the amplifier for each section is equal,

or that input level controls are provided

to maintain the proper low-to-mid/high

balance. If two identical stereo ampli-

fiers are used, one may he located near

each loudspeaker and drive low and

high frequency sections through short

wire runs.

NOTE: Input polarity must be the

same for both the low and high fre-

quency sections. Some amplifiers

invert polarity. If the polarity is

reversed to one section, a discontinuity

in response will be apparent in the

crossover region. If a problem is sus-

pected, reverse the polarity to either

low or high frequency sections of both

loudspeakers. Amplifier polarity mark-

ings may not ensure correct polarity

c o n n e c t i o n s .

The Woofer Grille:

The grilles on the P roject K2 S9800

loudspeaker system have been

designed for maximum acoustical

t r a n s p a r e n c y. For the most critical lis-

tening, however, JBLsuggests remov-

ing the grilles. The grilles are connect-

ed by four pins inserted into four holes

on the face of the cabinet.

To remove each grille, hold the grille

edges with your fingers and gently pull

the grille away. Do not use any tools to

pry the grille off; this will damage the

finish of the cabinet. To replace the

grille, position the mounting pins over

the holes and gently press until the

grille meets the enclosure.

Project K2 Final Checklist

- Connect and plug in all other system

e l e c t r o n i c s .

- Check all connections. If bi-amping

or bi-wiring, make sure both shorting

straps are removed.

- Make sure three controls on the

crossover panel are correctly set.

The system is now ready for use. T h e

P roject K2 S9800 speaker system is

fully functional as soon as it is set up.

There are no restrictions on the amount

of amplification that may he applied.

There may be some subtle tonal

changes in bass output over the first

week to 10 days of operation. T h e s e

are caused as the movement of the low

frequency drivers becomes more fluid

and the parts settle in. This process is

completely normal and natural with

transducers of this caliber.

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JBL k2 s9800 s e mahogany hoogglans Manual

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