Owner’s Manuals

• [čeština] FR-4x Referenční manuál

• [Čeština] FR-4X Uţivatelský manual

• [English] FR-4x Owner's Manual

• [English] FR-4x Reference Manual

• [English] FR-4x Tone & Drum Kit List

• [English] Supplementary Explanation of the FR-4x/4xb Reed Combinations