Ampeg b 5r specs en

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21. CIRCUITBREAKER:The B5R employs an AC line circuit breaker to help protect against damage due to excessive current demands. If the amplifier stops work- ing, check the circuit breaker. If it has opened, the but - ton will be protruding and showing a contrasting color . Y ou can reset the circuit breaker by pushing it in until it latches. The breaker must cool down for a short time before the button will latch. If the circuit breaker opens repeatedly, have the amplifier checked by a qualifiedservice person. 22. ACLINE IN: Firmly insert the supplied AC power cord into this socket until it is fully seated. Plug the male end of the cord into a grounded AC outlet. DO NOT DEFEAT THE GROUND PRONG OF THE AC PLUG! 23. SPEAKER OUTPUTS: The 1/4 jacks offer a con- venient method of connecting to speaker cabinets using cables terminated with 1/4 plugs. However , when using the amplifier at or near its full output power , using the Speakon ®jack is recommended. 24,25. TRANSFORMER BALANCED LINE OUT JACKS: These jacks supply a pre-Master, line level signal for connection to a house mixing board, record - ing console or external amplifier(s). The 1/4 jack (25) provides a balancedor an unbalanced signal; the XLR- type jack (24) provides a balancedsignal. 26. EFFECTSLOOPRETURN: When using external effects, connect the effects output into this jack using a shielded instrument cable. 27. EFFECTSLOOPSEND: When using an external signal processor, connect this jack to the input of the effect using a shielded instrument cable. 28. TUNEROUT :This jack is provided for connection to an electronic tuner and is always live, even when the Mute switch (3) is engaged, allowing for silent tun - ing as well as a monitor feed which remains active when the other outputs are muted. 29. POWERAMPINPUT :This jack connects directly to the power amp for use with an external preamp. When using an external source, connect the OUTPUT of the source to this jack by means of a shielded instrument cable to feed the signal into the power amp section. The internal signal is disconnected when a plug is inserted. 30. PREAMPOUTPUT :This jack is a direct preamp output for use with an external power amplifier, mixing board, external effects, etc. Connect the external unitinput to this jack using a shielded instrument cable. 31. OCT AVE/COMBINE FOOTSWITCH: Connect a two button footswitch to this jack for remote control of the Octave and Combine features. The tip connection controls the Octave feature and the ring connection controls the Combine feature. 32. CHANNEL FOOTSWITCH: Connect a single but - ton footswitch to this jack for remote channel selection. B-5R rear panel: Technical Specifications: OUTPUT POWER RATING 675 watts @ 2 ohms (500 watts continuous) 2 x 380 watts @ 4 ohms (310 watts continuous) 2 x 220 watts @ 8 ohms (180 watts continuous) TONE CONTROL RANGE BASS: 22dB range @ 50Hz ULTRA MID: 13dB range @ 250Hz TREBLE: 22dB range @ 8kHz SIGNAL TO NOISE RATIO 75dB typical FOOTSWITCH JACKSA: Channel Switch; B: Octave (Tip), Channel Combine (Ring) POWER REQUIREMENTS 120VAC, 60Hz, 545VA; 100VAC, 50/60Hz, 545VA; 230VAC, 50/60Hz, 545VA SIZE AND WEIGHT 19/17.4 W x 3.8 H (w/feet) x 15.5 D, 32 lbs.