[quote name='funkle' timestamp='1503674551' post='3360242']
The Puma 900 I run has probably the world's most useless bass boost knob - centred around 30 Hz. However, a smidge of cut makes the sound in many small rooms much better - a sort of ersatz HPF. Boosting there is not that useful IMO though
EDIT: In fact, the more I think about it, it's probably quite a dangerous knob. A noob player looking to get more bass out of a cabinet not designed for it could easily put quite a lot of power through the woofer, if the maxed out that particular knob. Alex will know more about the power tolerances and voltages etc, but I imagine enough low end boost at high power could damage a woofer.
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I know what you mean about the Puma 900s bass knob - I've just acquired one myself. It does work well as a "boom cut" though. Can sound great dialled up just a little for some reggae/soul/HipHop flavours too.