Bass Heads	
Model	B-5R
	
Preamp (Tube or Solid State)    	SS
Driver Tubes	
Power Amp (Tube or Mos-Fet)	   MF
RMS Power Output (2 ohms)	      500
RMS Power Output (4 ohms)	      350
RMS Power Output (8 ohms)	      200
Tone Controls	                           3 band & OD Style
Mid Tone control	                       Style/Ultra Mid
Graphic EQ                                	n/a
Ultra Low/High Boosts	              No
Balanced Line Out	                     Yes
Effects Loop	                            Yes
Preamp Out/Power Amp In        	Yes
Size (W x H x D inches)	             19 x 3.5 x 15
Weight (pounds)                        	20
	
Other:	Dual 1/4" Inputs
	Dual Channels
	Channel Switching/combining
	Input Pad
	Gain Boost
	Octave Divider
	Noise Gate
	Mute Function
	Tuner Out



Bass Heads	
Model	B-4R
	
Preamp (Tube or Solid State)	   	SS
Driver Tubes	
Power Amp (Tube or Mos-Fet)		  MF
RMS Power Output (2 ohms)	      500x2
RMS Power Output (4 ohms)		     350x2/1000
RMS Power Output (8 ohms)		     200x2/700
Tone Controls	     	     	     	     	  	3 band
Mid Tone control		     	     	     	    Style/Ultra Mid
Graphic EQ		     	     	     	     	       9 band
Ultra Low/High Boosts		     	     	 No
Balanced Line Out		     	     	        Yes
Effects Loop		     	     	     	     	   Yes
Preamp Out/Power Amp In	      	Yes x 2
Size (W x H x D inches)		     	     19 x 5.25 x 15
Weight (pounds)		     	     	     	    39
	
Other:	Dual 1/4" Inputs
	Texture Tube Emulation 
	Series/Parallel Effects with Blend Control
	Defeatable Optocoupler Limiters
	Push Button Biamp/Full Range Capability
	Stereo/Mono Bridge Switch
	Internal 24 dB/8va Crossover
	Linkwitz-Riley State Variable Filters
	100 - 1KHz Variable Crossover Point
	High/Low Balance Control
	Tuner Out Jack
	Mute Function
	15 Amp Circuit Breaker
	


Bass Heads	
Model	B-2R
	
Preamp (Tube or Solid State)	    SS
Driver Tubes	
Power Amp (Tube or Mos-Fet)	   MF
RMS Power Output (2 ohms)	      n/a
RMS Power Output (4 ohms)	      350
RMS Power Output (8 ohms)	      200
Tone Controls                            3 band
Mid Tone control	                       Ultra Mid
Graphic EQ	                                9 band
Ultra Low/High Boosts               	No
Balanced Line Out                      	Yes
Effects Loop	                             Yes
Preamp Out/Power Amp In	         Yes
Size (W x H x D inches)	              19 x 3.5 x 15
Weight (pounds)	                        15
	
Other:	Input Pad
	Peak LED Input Indicator
	Defeatable Optocoupler Limiter
	Pre/Post EQ XLR Line Out
	Line Out Level Select
	Variable Speed Fan