Introduction: Chapter 1
8RA150/300/500 Reference Manual
Reference Series Features-
• DC coupled, fully complementary discrete
amplifier topology
• Actively biased, dual differential input
stages
• Wide bandwidth, low distortion design
• Fully protected from all fault conditions
• LED output level metering (RA 300, RA
500)
• Front panel level controls
• Overload/Fault indicators
• Bridged mono operation
• Balanced 1/4” & RCA single-ended input
connectors
• XLR input connectors (RA 300, RA 500)
• Heavy-duty, dual binding post output
connectors
• Relay-controlled turn on/off
• Silent, convection-cooled design
• Heavy-duty steel chassis
ABOUT THIS MANUAL
In most respects, the three different amplifiers
covered by this manual are similar except for their
power ratings. Operational differences will be
noted individually.