Pr
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ffects Mix
er with USB
ProFXv3 Professional Effects Mixer with USB
20
45. Theremin
A theremin is more of an instrument than an effect.
That said, it fits really well here in the FX section.
Additionally, theremins can be expensive, take up
a bit of space and can be unwieldy. But not here... just
a simple two knob “theremin” built right into the mixer!
The two knobs are frequency and amplitude.
Frequency is another word for “pitch”. The frequency
is at its lowest when the knob is fully counter-clockwise
and at its highest when fully clockwise. Amplitude
is another word for “volume”. The amplitude is at
its lowest when the knob is fully counter-clockwise
and at its highest when fully clockwise.
Don’t fret if your mixer doesn’t come with
built-in Theremin knobs. They do not exist...
yet. No doubt that would be a cool feature,
but perhaps on our next mixer series...
Blend, Control Room and Phones
46. Blend Knob
The blend knob adjusts the level of all inputs (except
the 1/8" input) and USB 1-2 Return to be delivered
to the main outputs (and phones and control room
if the adjacent switch is engaged, see below).
As an added bonus, this is all at zero-latency!
Use this knob while recording overdubs alongside
a pre-recorded track, for example.
Knob position (L, C, R):
• Full Left – Inputs = Full Volume
USB Return = No Volume
• Center – Inputs and USB Return = Equal Volume
• Full Right – Inputs = No Volume
USB Return = Full Volume
USB 1-2
TO PHONES/
CONTROL ROOM
BLEND
46
48
49
50
47
47. To Phones / Control Room Switch
By default, the control room and phones jacks
output the 2-track LR mix (or soloed channels,
if any are engaged). Push this switch in if you want
to interrupt this signal and hear the blended signals
instead.
Because there are no control room outputs
on the ProFX6v3, there is a “To Phones” only
switch.
48. Control Room Knob
This knob is used to adjust the volume at the control
room outputs, from (off) to maximum gain (max).
Make sure that this knob is fully off [counter-clock-
wise] before selecting or adding a new source.
Because there are no control room outputs
on the ProFX6v3, there is no control room
knob, either.
49. Phones Knob
This knob is used to adjust the volume at the phones
output from (off) to maximum gain (max). Make sure
that this knob is fully off [counter-clockwise] before
selecting or adding a new source.
WARNING:
The headphone amp is loud,
and can cause permanent hearing damage.
Even intermediate levels may be painfully
loud with some headphones.
BE CAREFUL!
Always
turn this control all the way down before connecting
headphones, or pressing a solo switch, or doing
anything new that may affect the headphone volume.
Then turn it up slowly as you listen carefully.
50. Break Switch and LED
This important “take-a-break” switch quickly mutes
all the microphones and line-level inputs to the main
outs, cr outs and phones when the band is between
sets. This will prevent protestors or rogue karaoke
singers from storming the stage at the interval.
The monitor send and FX send are not affected.
If there is no sound coming out of the system,
be sure to check this switch first.
It is possible to play audio coming in from
the computer via the USB inputs. For example,
a soothing CD may be played while the band is off stage.
The adjacent break LED will illuminate as a reminder
that the channels are muted.
