30  QSC Audio Products LLC 
  Application Engineering Team
Application: Stereo bi-amp mains with two monitor mixes
•  Two 8Ω high-power single-woofer bi-amp mains, stereo 
•  Two 8Ω high-power passive monitors, two mixes
Equipment
Current draw 
120 V / 230 V
Rack 
spaces Total watts Weight
Old paradigm
Two low-power two-channel 
amps
High-power two-channel amp
~13 A / ~6.5 A 7 2100 ~135 lb
New paradigm
Two PLD4.3 4.6 A / 2.3 A 4 9400 42 lb