True to the Music
®
Radial Engineering Ltd.
JDX 500 Module
Speaker/
Guitar
GND LIFT
Ground lift MUST be
turned on if the amplifier
has a floating or bridged output!
Ground lift MUST be turned on
if XLR input is expected to be balanced.
300W
REAR PANEL
XLR
INPUT
PHASE
REVERSE
LF-EXT
FILTER1
EXTEND
HEAD/
GUITAR
INPUT
SPK/THRU
NC
NO
NC
NO
221R
332R
15.0K
NC
NO
NC
NO
OMNIPORT OUTPUT
MIC LEVEL
REAR PANEL
XLR
OUTPUT
FILTER2
TONE
SHIFT
LPF
PHASE
SPLITTER
20 db
GAIN
GAIN
INVERTING
BUFFER
BALANCED TO
UNBALANCED
CONVERTER
BUSS
OUTPUT
NC
NO
4.75K
BLOCK DIAGRAM*
SPECIFICATIONS*
Circuit type:
100% Class-A discrete, transformer coupled
Frequency response:
Custom multistage band-pass fi lter (speaker cabinet emulation)
Power requirement:
80mA, +/-16VDC
Low pass fi lter:
Variable (Tone Shift) from 800Hz to 5kHz
Low freq. extension:
Shifts low frequency cutoff from 200Hz down to 100Hz
Front Panel Jacks
Amp mode:
¼” HEAD/GUITAR:
Speaker-level input for amplifi er 100W ~ 300W (selectable)
¼” SPEAKER:
Parallel connection for speaker cabinet.
Guitar mode:
¼” HEAD/GUITAR:
Instrument-level input, impedance 10kOhms
¼” SPEAKER:
Parallel thru-put from guitar
Rear Panel (500 Series Rack)
Guitar mode:
XLR input:
Input impedance 10kOhms
XLR output:
Ba4dB nominal
Amp mode:
XLR input:
Not Used
XLR output:
Ba4dB nominal
Omniport:
¼” TRS Balanced, mic-level, 600 Ohms (with Workhorse)
Shipping weight:
1.5 lbs. (.7 kg)
Size:
Standard 500 series rack format
Warranty: 3
years,
transferable
* Subject to change without notice.
9
GROUND
CONNECTOR WIRING
HOT (+)
COLD (-)
GROUND
TRS ¼” Phone Connector
HOT (+)
TS ¼” Phone Connector
1
2
3
HOT (+)
COLD (-)
XLR Connector
GROUND
