Moving the “HF CONTROL” knob adjusts the
level of the tweeter, making the cab sound more
or less bright.
As shown on the rear panel, the Big Baby II is 8 ohm nominal impedance, whilst the Big Twin II is
4 ohm nominal impedance. The two dark green speakon sockets are actually combi sockets which
also take a 1/4” lead. Regardless of how your amplifier is wired, the speaker cab end of your lead
should be a 2-pole or 4-pole speakon (wired 1+ and 1-) or a 1/4” jack (wired tip +).
Both sockets are wired in parallel so you can daisy-chain further cabs in parallel. You can daisy-
chain as many as you like as long as you don’t run below your amp’s minimum nominal imped-
ance. Running two leads from your amp out to two separate cabs is electrically identical to run-
ning one lead from the amp to the first cab and a second lead from the first cab to the second cab
(daisy-chaining).
With the HF control at max you hear everything
upwards of ~2kHz coming from the HF driver,
which makes the sound extremely clean, true
and accurate - basically like a really good PA
loudspeaker.
Turn the HF control down and the crossover
point gradually shifts from 2kHz to 10kHz, so
more and more of your tone comes from the 12”
driver.
The more treble you hear from the 12XN, the
less ‘hi-fi’ the cab will sound and the more it will
sound like an old school bass cab. Yes it will get
less bright sounding but you have EQ so you can
add brightness back with that.
3.a
