13. Line Out XLR
The Line Out allows the user to connect the Small Block preamp directly to a mixing console
when performing live or recording in the studio. Use a standard XLR mic cable, or an XLR
female to a 1/4-inch TRS patch cable, depending on the mixer's available inputs (it is usually
best to use a 1/4-inch TRS line-level input on the board to match gain levels).
14. Lift/GND Switch
The Line Out's Lift/Gnd button can help prevent unwanted ground hums when sending
the audio signal to an outboard mixer or other gear. In the Lift setting, the Lift/Gnd button
disconnects Pin 1 of the XLR to help reduce ground loop hum when routing signals directly to
other equipment or mixing consoles. However if ground loop hum is not audible, you may get
superior shielding from outside noise sources with the button in the GND setting.
User Tip: When using the XLR Line out for recording direct-to-computer, we would recommend
you insert a suitable device between the amp and computer such as A.R.T.'s TubeMP with
USB for extra gain control and USB conversion.
15. Speakon™ Speaker Output Jacks
The amp's minimum load is 4 ohms overall therefore you can connect a total of one 4 ohm
speaker cabinet to the Speakon™ jack output or two 8 ohm speaker cabinets in parallel (by
daisy chaining from one cabinet to the other).
Note: The 500 watt rated power output (@ 4 ohms) is measured with the amp's Gain and
tone controls adjusted for minimal distortion. When shopping for a single 4 ohm cabinet, look
for one with a program power rating of approximately 550 watts, this will provide some added
capacity for handling "crunch" distortion.
Note: The cooling fan will operate when internal temperatures exceed 50° C.
Cabinet Impedance (ohms):
Power @ min. impedance (watts):
Minimum Impedance (ohms):
Burst Power - 2 cycle:
Input Channels:
Channel 1 - inputs:
Channel 1 - controls:
Channel 1 - switches:
Line Out (type / configuration):
Line Out Sensitivity (Vrms):
LED Indicators:
External speaker output / location:
Other Features:
Dimensions (DWH, inches):
Dimensions (DWH, cm):
Weight (lbs / kg):
1/4-inch T.R.S.
Phone Plug
Tip = 0°
Ring = 180°
Sleeve = Ground
Specifications
SB500H
Model:
bass amp
Type:
4 ohms
500 watts
4 ohms
600 watts
2
passive 0 dB, active -6 dB
Gain, Bass, Low Mid, High Mid, Treble, Low Expander
Mute, Ground Lift, Line Out Pre/Post EQ, Limter, EFX send/rtn, Master
Balanced Switchable Pre-EQ/Post-EQ, Ground Lift switch
1 Vrms
red, blue / protect, power
Protection:
clip,thermal, overcurrent, clip.
2 X Jack /Speakon™) / rear of unit
1/4-inch head phone jack, Tuner out, 1/4-inch EFX Loop (on rear)
9.5x12x2.5
22x30x6.5
3.5/1.6
XLR Plug
(Male)
1
2
3
Balanced 1/4-inch T.R.S. to Balanced XLR
4
Pin 1 = Ground
Pin 2 = 0°
Pin 3 = 180°