JBL SC305 User Manual

SC305
CENTER CHANNEL
SPEAKER
OWNER’S
MANUAL
INTRODUCTION
Congratulations on choosing JBL Series loudspeakers. Their highly accurate, uncolored and balanced sound character will greatly increase your enjoyment of recorded music. JBL speakers are built with careful attention to detail, using only the highest quality materials. They will provide many years of excellent per­formance.
The SC305 Center Channel Speaker is the result of concentrated efforts to combine traditional JBL performance values with elegant contemporary appearance. Some of the engineer­ing features of the SC305 are:
Smooth, extended response:
The 14mm Titanium Laminate dome tweeter, dual 5" polymer laminated cone drivers and carefully designed dividing network deliver the clear, crisp, quality sound reproduction needed to deliver the accurate, intelli­gible vocal information required by a center channel speaker.
305
SC
High Quality Crossover Network: the computer-optimized
dividing network employs up to third­order (18 dB per octave) crossover sections. JBL's use of high quality capacitors and low-loss/low-distortion inductors assures freedom from phase or amplitude distortions.
Magnetic Shielding: prevents stray
Fig.2
Fig.1
magnetic fields from creating any interference or distortion of the video picture. This allows placement of the SC305 directly on top of, or directly below the video monitor.
Cabinet Design: the multi-angled
cabinet provides options of locating the SC305 directly on top of the video monitor or on the floor in front of the monitor.
PLACEMENT
As the center channel contains the dialog and other central action sounds, the speaker should be locat­ed very close to the video monitor centered with the monitor's center line. The SC305 can be placed in two loca­tions:
1) On top of the video monitor.
Place the large flat bottom of the speaker directly on top of the monitor, with the front edge of the speaker grille flush with the edge of the moni­tor. The speaker grille/baffle should be pointing directly at the listener. See Fig. 1.
2) On the floor directly in front of the monitor.
cabinet on the floor so that the speak­er grille/baffle is pointing directly at the listener. The grille can be removed and re-installed so the JBL Logo is oriented properly. See Fig. 2.
Place the angled side of the
CENTER LINE
CONNECTIONS
To connect the SC305 to the center channel output of your AV receiver or amplifier, use two-conductor insulated wire. Your JBL dealer can recommend suitable cables, or you can buy wire at most hardware stores. We recom­mend #16 AWG wire as a minimum size. If your speaker is more than 30 feet (10 m) from your AV receiver or amplifier, use larger diameter wire. Connections are made at the termi­nals located on the back of the SC305 speaker. The terminals accept bare wire or dual banana plugs, either of which will provide easy, secure con­nections.
CENTER LINE
Preparing the hookup wire
1. First determine the distance
between the most distant speaker.
2. Now make the hookup wires for both speakers this length, even if one loudspeaker is much closer to your amplifier than the other. This will help maintain proper signal balance.
3. Strip off 3/8" of insulation from both ends of each conductor.
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