True to the Music
®
Radial Engineering Ltd.
JDX 500 Module
FEATURE SET
1. 180º REVERSE - Inverts the signal polarity
between 0° and 180°.
2. LIFT - Ground lift switch works with the
transformer isolation to help eliminate hum
and buzz caused by ground loops.
3. LPF TONE SHIFT - Low pass fi lter control,
rolls off the high end to tame the aggressive
edge from overly bright sounding amps.
4. LF-EXT - Low frequency extension, lowers
the bass frequency response to emulate the
sound of a 15” speaker for added bass.
5. GUITAR - Toggles the front panel 1/4” jacks
between “amp mode” and “guitar mode”.
When set to “guitar mode” (inward position)
instruments may be connected directly
to the 1/4” HEAD jack. The LED indicator
fl ashes when “guitar mode” is engaged.
Do not connect an amplifi er when the LED
is fl ashing.
Read the user warning notice
before using this feature.
6. 300W - Reduces the input sensitivity to allow
high-power guitar and bass amps to be used
with the JDX.
7. 1/4” HEAD JACK - Used to connect amps or
instruments depending on the position of the
GUITAR switch. When the JDX is in “amp
mode” this jack connects the speaker output
of an amplifi er. When the JDX is set to “guitar
mode” instrument may be connected directly
to this jack.
Read the user warning notice
before using this feature.
8. 1/4” SPEAKER JACK - Used to connect a
speaker cabinet when JDX is used with
an amplifi er.
The JDX is not a load box.
Therefore, it must be connected to a
speaker or load box when used with a
guitar amp.
9. OMNIPORT - When installed in the Radial
Workhorse rack you will have access to the
Omniport ¼” TRS jack. The JDX Omniport
is an alternative output set up as a balanced
mic-level direct box to feed a microphone
preamp, snake system or mixing console in
a live touring setup.
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7
1
4
3
2
6
5
Rear Panel
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