Page 6
Thunderfunk Bass Amp Owner’s Manual
April 2007 - revision 8
Thunderfunk Bass Amp Owner’s Manual
The good news is the Thunderfunks can be adjusted to nearly any tone imaginable. Ultimately it boils
down to experience, a good and trained ear, and practice.
If you get a sound check, or play the same place often, move around to hear what it sounds like in
different places. Try new things. Get someone you trust to help, but remember: a little goes a long way,
and a couple of dB's of EQ, or relocation of the cabinet, or a different cabinet may be all you need to solve
these issues.
One other item: if you have guitar players in the band, ask them to follow the Les Paul rule. Les Paul’s
cardinal rule is this: point guitar speakers directly at the guitar player’s ear. Between us bass players,
everyone will be glad when that happens.
Volume Control
– Adjusts the overall amplifier output. The actual volume of your electro-acoustic
system is determined by many elements, the most important being the sensitivity of the speakers. A
speaker system with a sensitivity that is 10 dB more than another speaker system will sound TWICE as
loud.
Thunderfunk bass amps are capable of producing sound levels that can cause permanent hearing loss.
This is especially true in when additional sound sources, such as when headphones are used. Also,
please respect the ears of the audience that has come out for you.
Phones/Line Output
– This built-in front panel jack can be used for either headphones, or as a line-
out connection. You can use a standard ¼ phone plug in either stereo or mono configuration, however
the output will be mono, and is driven by the power amp.
If you want to practice silently through headphones, speakers do not need to be connected in the back. If
you use it as a line-out connection, remember this output is after the entire preamp and power amp
circuitry, so all controls and setting are reflected at this jack.
Power
– This switch turns the system on or off. There is a Green LED to indicate power is applied, and
the fuse is good. If the indicator light does not come on, either the AC power cord is disconnected, the
wall outlet isn‘t working, the fuse is blown, or for some other reason there is no power to the unit.
The power to the amp is slow-start, meaning that the unit will not come on instantly, saving your ears and
speakers from the “POP” often associated with high power equipment. When turned on, there is a couple
of seconds delay before the mute circuit allows the preamp signal to get to the power amp. Similarly, the
amp shuts down without the “POP” caused by DC bias shifts in other amps not similarly equipped.
It is still considered good practice to set the master volume control at minimum when powering the amp
up and down, and when plugging or unplugging your instruments. This will prevent any unexpected signal
from being sent to your speakers.