Crown CH Series Operation Manual page 32

CH and CL Series Power Amplifiers
Figure 7.4
Models CH4 & CL4
Frequency Response
(Typical)
Figure 7.5
Models CH1, CH2, CL1 & CL2
Damping Factor
(Typical)
(CH1, CH2 Set To 4/8 Ohm Mode)
page 32 Operation Manual