Marshall Amplification JFX-1, User Manual

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WARNING!
PLEASE READ THE FOLLOWING LIST CAREFULLY
A. DO NOT attempt to remove the JFX-1’s lid, There are no user serviceable parts inside.
B. ALWAYS have this equipment serviced or repaired by competent, qualified personnel.
C. NEVER use the JFX-1 in damp or wet conditions.
D. ALWAYS use only the Marshall power supply that is provided with the JFX-1.
E. PLEASE READ this instruction manual carefully before switching on.
Introduction
The Marshall JFX-1 is a totally programmable 24 bit digital effects processor which features the
highest quality effects algorithms and also allows complete control via MIDI.
By utilising a 64x over-sampling 16 bit Sigma/Delta Analogue to Digital converter in conjunction
with 16 bit linear dual Digital to Analogue conversion, the JFX-1 produces effects that have superb
resolution and depth, with an absolute minimum of distortion and maximum dynamic range.
Also by incorporating a high quality Voltage Control Amplifier the all important dry signal is kept free
from degradation - essential for maintaining the integrity of your direct sound.
Although suitable for all processing applications the JFX-1 has been designed primarily as a guitar
rack effects processor. The first 50 programs have been pre-set at the Marshall factory but may be edited
in full. They can also be restored without loss of data custom programmed into memories 50 to 127. The
individual algorithms for Chorus/Flange, Multi-Tap Delay, Delay, Reverb and Multi-Effect, give you the
ability to edit and store a superb library of effects, with no unnecessary or redundant features to confuse
the issue.
If you want to use the JFX-1 with an amp head or combo which has channel switching facilities the
special Remote Jack can be programmed to activate the Channel switch as part of the selected program.
Whether you are recording in a professional or home studio or playing live through a combo or full
stereo rack system, the JFX-1 puts a vast range of creative possibilities instantly at your fingertips.
It is advisable to keep this manual in a safe place for future reference after studying it carefully, as
gaining a full understanding of how the JFX-1 operates will ensure that you are getting the most from it’s
processing power- especially when designing your own personal sounds.
Manufactured in Great Britain by:
Marshall Amplification plc, Bletchley,
Milton Keynes, England.
Model No. JFX-1
WARNING! No user servicable parts inside;
refer servicing to qualified personel only.
Power
9V AC
1.2A
In
MIDI
THRU
Out Remote Right Left Input
MIDI In
Output
Input
Footswitch FX Send
LOUDSPEAKER
OUTPUTS
PARALLEL
STEREO LOOP
SERIES
MONO LOOP FOOTSWITCH
Where applicable, This Apparatus Must Be Earthed
LINE OUT
RIGHT LEFT RIGHT LEFT RIGHT
RETURN
LEFT
RETURN
SEND RETURN SEND
100W/ 4 ohms per channel
80W/ 8 ohms per channel
MIDI Foot Controller
JFX-1
Combo
FX Return
Set-up C: With a Stereo or Mono combo or amp.
Section 1 - Connection Diagrams
FOOTSWITCH
OUT THRU IN SEND LEVEL LEVEL LEVEL
SPEAKER EMULATOR MASTER
R. RETURN R. OUTPUT L. OUTPUT R. OUTPUT L. OUTPUT L. RETURN
MIDI EFFECTS
WARNING: Fire and Shock Hazard - Do not
Expose Unit to Rain or Moisture.
Shock Hazard This Unit Must Be Earthed
Do Not Open.
AVIS: Risque de choc Electrique - Ne Pas Ouvrir
WARNING: No User Servicable Parts Inside.
Refer to Qualified Personnel.
MAINS INPUT
230V ~ 50 Hz 20 Watts
Marshall Amplification Plc, England.
+4 dB
-20 dB
+4 dB
-20 dB
+4 dB
-20 dB
Manufactured in Great Britain by:
Marshall Amplification plc, Bletchley,
Milton Keynes, England.
Model No. JFX-1
WARNING! No user servicable parts inside;
refer servicing to qualified personel only.
Power
9V AC
1.2A
In
MIDI
THRU
Out
Remote Right Left Input
MIDI In
MIDI Out Input
FX Send MIDI In FX Returns
FX RETURNS
L&R Inputs
MIDI Foot Controller
JFX-1
Pre-Amp
Outputs
Power Amp
L&R Outputs
Speaker Cabinets
Set-up B: Stereo Rack System.
Manufactured in Great Britain by:
Marshall Amplification plc, Bletchley,
Milton Keynes, England.
Model No. JFX-1
WARNING! No user servicable parts inside;
refer servicing to qualified personel only.
Power
9V AC
1.2A
In
MIDI
THRU
Out
Remote Right Left Input
Outputs
FX Send L&R Return
JFX-1
Mixer
Set-up A: With a Home / Recording Mixer.
Please Note: The JFX-1 will also work with amps / combos operating in Mono. In this instance follow the
directions as above and link from either the Left or Right output to the Effects Return.