I have for sale 5 cpa5s in excellent condition which can be used for a surround sound system. They have been used but we no longer need them.
Here is the specs for them
FEATURES
Inductive Coupling Technology™
Point Source transducer
Magnetic shielding
High intelligibility and sensitivity
Extended bandwidth response
Universal mounting points
PERFORMANCE
Sensitivity: 90 dB / 2.83 V 1m
Nominal impedance: 6 ohm
Frequency response: 80Hz - 22kHz
Power Handling (RMS/Program): 50W / 100W
Peak SPL (half space): 116dB