Ampeg B4R - Manual (Page 9)

In the example shown below, the B4R’s two internal power amplifiers will power both a high frequency cabinet and a low frequency cabinet. The crossover
point is determined by the Frequency control (#16).
Set the Stereo/Mono Bridge switch to the OUT (Stereo) position and connect the system as follows:
1: Set the Full Range/Biamp switch to the IN (Biamp) position.
2: Connect a speaker cable from the B4R’s Power Amp A Speaker Output jack to the input jack of the low frequency cabinet(s).
3: Connect a speaker cable from the B4R’s Power Amp B Speaker Output jack to the input jack of the high frequency cabinet(s).
– OR –
4. Connect a heavy duty four-conductor speaker cable with a Speakon® connector from the B4R’s Biamp/Mono Bridge Speaker Output jack to the
input jack of a biamp-equipped speaker cabinet. (pin 1+ = low hot, pin 1– = low return, pin 2+ = high hot, pin 2– = high return)
In the example shown below, the B4R’s two internal power amplifiers are bridged together and will power the low frequency cabinet(s). A second amplifier will
be used to power the high frequency cabinet(s). The crossover point is determined by the Frequency control (#16).
Set the Stereo/Mono Bridge switch to the IN (Mono Bridge) position and connect the system as follows:
1: Connect a shielded cable from the B4R’s Biamp High Output jack to the Input jack of the High Frequency power amplifier.
2: Connect a shielded cable from the B4R’s Biamp Low Output jack to its Power Amp A Input jack.
3: Connect the high frequency power amp’s Speaker Output jack to the input jack(s) of the high frequency cabinet(s). (Observe amplifier’s minimum
load rating!)
4: Connect a heavy duty speaker cable terminated with a Speakon ® connector from the B4R’s Biamp/Mono Bridge Output jack to the input jack of the
low frequency speaker cabinet. (pin 1+ = hot, pin 2+ return)
Biamp with a
Second Amp
9
B4R Bass Amplifier
Biamp:
Highs / Lows
Speakon ® is a registered trademark of Neutrik AG.