- Cactus Sounds
- Cadence
- CalCell
- Caliber
- CAP
- Carpower
- CarSound
- CarWave Audio
- Cerwin Vega
- Clarion
- Concord
- Conrad Audio
- Coral
- Crunch
- Crunch BLX1000D
- Crunch BLX2000D
- Crunch CA280
- Crunch CR50
- Crunch CR50SHC
- Crunch CR100
- Crunch CR150
- Crunch CR250
- Crunch CR400
- Crunch Drive DS-450VU
- Crunch Drive DS-502
- Crunch Drive V-150SE
- Crunch Drive V-3004
- Crunch Drive V-4004
- Crunch Drive V-6004
- Crunch Drive V-600
- Crunch GTR2400.1
- Crunch GTR350.4
- Crunch GTR550.2
- Crunch GTS1100
- Crunch GTX3000D
- Crunch GTX 4600
- Crunch MXB-1200i
- Crunch MXB-4125
- Crunch MXB-4150i
- Crunch P2250
- Crunch Power One X2100
- Crunch Power One X4150
- Crunch Power Zone 4040
- Crunch Power Zone PX4400
- Crunch Power Zone z-5050
- Crunch Powerzone P1000.1D
- Crunch Powerzone P2000.1D
- Crunch Powerzone PZ200.2
- C-Quence
