True to the Music
®
Radial Engineering Ltd.
Q3 Coil Equalizer 500 Module
5
Using the High-Pass Filter
The Radial Q3 is equipped with a switch labelled HPF that stands for high-pass fi lter. What
this switch does is exactly that... it allows the high frequencies to pass... therefore cutting
out some of the lows. The HPF can be very effective when recording to eliminate excessive
bottom-end. Some EQ settings can cause certain instruments to sound muddy and clutter
up the recording. Keep in mind that bass frequencies contain a lot more energy than highs,
so they affect dynamic range and distortion. High-pass fi lters are also a ‘God-send’ in live
touring as cutting excessive bottom end eliminates resonance which is the primary cause of
feedback. Simply press, listen and then take out to compare.
Using the Omniport
When the Q3 is used with a Radial Workhorse or one of our other 500 series power racks,
the Omniport connection becomes available and in this case, it functions as an unbalanced
input and output.
EXTERNAL
DEVICE
Q3 OUTPUT
Q3 INPUT
COIL EQ
GAIN
OMNIPORT I/O
Radial Workhorse or other 500 Series Rack
While the XLR and ¼” TRS jacks on the Workhorse are balanced, the Omniport connection is
unbalanced making it easy to connect to the unbalanced insert patch point on a console. Note
that the balanced XLR I/O should be left unconnected when using the Omniport function. The
easiest way to connect to the Omniport would be to use a TRS-to-TRS cable. Simply make
sure the wiring is confi gured as follows:
RING
TIP
SLEEVE
RING
TIP
SLEEVE
SHIELD
SOURCE
Tip = Send
Ring = Receive
Sleeve = Ground
Q3 Omniport
Tip = Input
Ring = Output
Sleeve = Ground
