MONTARBO - Service Manuals
2 manuals available for download

Montarbo Six and Trio Keyboard Amplifiers User Guide
Complete product documentation for Montarbo Six (6-channel 220W MosFet amplifier) and Trio (3-channel 75W MosFet amplifier) keyboard amplifiers. Includes main features, technical specifications, control descriptions, and front/rear panel layouts. Features information on built-in mixers, digital effects processors, power amplifiers, speaker configurations, and connectivity options for both models.

Montarbo Trio Guitar Amplifier Schematic Diagram
Complete electronic schematic diagram for the Montarbo Trio guitar amplifier. Includes three channel designs (TRIOAR1, TRIOBR1, TRIOCR1) with tone control circuits, reverb section, power supply with transformer and rectifier bridge (KBL04), output stages with speaker drivers (tweeter and woofer), and telephone output. Features RC4559 op-amps, transistor output stages with BC449/BC450/BC549 devices, and comprehensive component values and connections.