JBL Century Gold manual Bi-Amping Connections, Bi-Amp Connecting Method

Figure 12 Bi-Amp Connecting Method

AMP

NORMAL/

BI-WIRE

JBL INCORPORATED 8500 BALBOA BLVD. NORTHRIDGE, CA USA

HIGH FREQUENCY

LOW FREQUENCY

Figure 12a Bi-Amp Switch Setting

Bi-Amping Connections

The optimal method of powering the Century Gold system is with two amplifiers, one for low frequencies and one for the mid/high frequencies. It is necessary to use a high-quality active crossover module. Since each amplifier only drives a limited frequency range, this method allows the user to select amplifiers with the desired sonic character for low and high frequencies.

Make sure that the input sensitivity of each of the amplifiers is the same, or that input level controls are provided to maintain the proper low-to- mid/high balance. If two identical stereo amplifiers are used, one may be

BATTERY

No.

11

BI-AMP

NORMAL/ BI-WIRE

located near each loudspeaker to drive low and mid/high frequency sections through short wire runs.

The external “strapping bars” that normally connect the Century Gold’s low-frequency and high-frequency terminals must be removed before bi-amping.

To remove the shorting straps, simply loosen and slide the bars off to the side (Figure 11).

If the system is wired in the bi-amp method, set the Bi-Amp/Normal switch to the Bi-Amp position (Figure 12 and Figure 12a).