- Opera audio A-120
- Opera audio A-100plus
- Opera audio Reference 880
- Opera audio T99
- Opera audio Cyber-100S signature
- Opera audio Reference 40
- Opera audio Reference 1.2
- Opera audio Calaf
- Opera audio Cyber-800
- Opera audio T1
- Opera audio PM-2
- Opera audio Reference 150
- Opera audio Cyber 100 Signature
- Opera audio M800SE
- Opera audio M100 plus
- Opera audio Reference 9.9
- Opera audio Reference 50
- Opera audio Cyber-20
- Opera audio M100S plus
- Opera audio Reference 1.3
- Opera audio A100 linear
- Opera audio PM-6
- Opera audio PM-1
- Opera audio Reference 5.5
- Opera audio Droplet 211