Roland DD-20 DIGITAL DELAY manual download
- Roland DD-20 DIGITAL DELAY manual download
English 
- Bedienungsanleitung Roland DD-20 DIGITAL DELAY
- Roland DD-20 DIGITAL DELAY manual
- Mode d'emploi Roland DD-20 DIGITAL DELAY
- Инструкция по эксплуатации Roland DD-20 DIGITAL DELAY
- Manuale d'uso Roland DD-20 DIGITAL DELAY
- Manual de instrucciones Roland DD-20 DIGITAL DELAY
- Manual de uso Roland DD-20 DIGITAL DELAY