Ahuja DFX-160B User manual

DFX-160B
Thank you for purchasing the AHUJA 24bit Digital Effects Processor.
Please read this manual thoroughly before making connections and
turning on the power. Following the instructions in this manual will
enable you to obtain optimum performance from your new AHUJA
Digital Effects Processor.
Please retain this manual for future reference.
®PADIGITAL
EFFECTSPROCESSOR
OPERATION MANUAL
OPERATION MANUAL

• Safety Instructions
CAUTION: To reduce the risk of
electric shock, do not remove the
top cover. No user serviceable
parts inside. Refer servicing to
qualified personnel only.
WARNING: To reduce the risk of fire or electrical shock, do not expose this
equipment to rain or moisture.
Detailed Safety Instructions: All the safety instructions in this manual
should be read before operating this equipment.
Retain Instructions: The operation manual should be kept for future
reference.
Follow Instructions: All operation and safety instructions should be
followed.
Water and Moisture: In order to prevent any fire or shock hazard, do not
expose this equipment to rain or moisture.
Power Source: The equipment should be connected to V C adaptor
supplied alongwith. The adaptor should be connected to 220-240V 50HzAC
.
Power-cord Protection: Do not cut, kink, damage or modify the power
supply cord of the 12V DC adaptor supplied with the equipment. Keep the
power supply cord away from heaters & harmful chemicals. Do not place
heavy objects on the power cord.
Operation on Generator: When operating DFX-160B on a generator,
make sure it is switched 'OFF' till the generator voltage has stabilized and then
only switch the processor ON.
Heat: The appliance should be situated away from heat sources such as
radiators, amplifiers and other appliances that produce heat.
the12 D
mains
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol, wherever it
appears, alerts you to the
presence of uninsulated
dangerous voltage inside
the enclosure, that may be
sufficient to constitute a
risk of shock.
This symbol, wherever it
appears, alerts you to
important operating and
maintenance instructions in
the accompanying literature.
Read the manual.
2
• Table of Contents
Contents Page No.
Features / General Description of Product. . . . . . . . . . . . . . . . . . . . . . . . . 4
Front Panel Controls & Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Rear Panel Controls & Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
+
+
+
+
+
+
3

• Safety Instructions
CAUTION: To reduce the risk of
electric shock, do not remove the
top cover. No user serviceable
parts inside. Refer servicing to
qualified personnel only.
WARNING: To reduce the risk of fire or electrical shock, do not expose this
equipment to rain or moisture.
Detailed Safety Instructions: All the safety instructions in this manual
should be read before operating this equipment.
Retain Instructions: The operation manual should be kept for future
reference.
Follow Instructions: All operation and safety instructions should be
followed.
Water and Moisture: In order to prevent any fire or shock hazard, do not
expose this equipment to rain or moisture.
Power Source: The equipment should be connected to V C adaptor
supplied alongwith. The adaptor should be connected to 220-240V 50HzAC
.
Power-cord Protection: Do not cut, kink, damage or modify the power
supply cord of the 12V DC adaptor supplied with the equipment. Keep the
power supply cord away from heaters & harmful chemicals. Do not place
heavy objects on the power cord.
Operation on Generator: When operating DFX-160B on a generator,
make sure it is switched 'OFF' till the generator voltage has stabilized and then
only switch the processor ON.
Heat: The appliance should be situated away from heat sources such as
radiators, amplifiers and other appliances that produce heat.
the12 D
mains
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol, wherever it
appears, alerts you to the
presence of uninsulated
dangerous voltage inside
the enclosure, that may be
sufficient to constitute a
risk of shock.
This symbol, wherever it
appears, alerts you to
important operating and
maintenance instructions in
the accompanying literature.
Read the manual.
2
• Table of Contents
Contents Page No.
Features / General Description of Product. . . . . . . . . . . . . . . . . . . . . . . . . 4
Front Panel Controls & Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Rear Panel Controls & Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Typical Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
+
+
+
+
+
+
3

• Features / General Description of Product
+
+
+
+
+
+
+
+
+
+
Robust and elegant design for quality sound effects in
a wide variety of PA and Pro Audio applications.
Easy selection of 16 preset effects through a rotary
switch. These 16 effects programs consist of seven
types of reverb effects, two types of delay effects,
three types of modulation effects and four types of
dual effects.
Each program provides 16 selectable variations
resulting in a total of 256 preset combinations through
DFX-160B.
Accepts mono input through a ¼" unbalanced jack
socket.
Separate ¼" unbalanced jack socket for left and right
outputs.
Individual volume control for input and output signals.
Mix volume control adjusts the level of dry and wet
signal content in the output.
Facility to connect a foot switch through a ¼" jack
socket. Foot switch is used to bypass or enable the
presence of wet (processed) signal in the output.
Operates on 220-240V AC mains through a dedicated
12V DC adaptor, supplied alongwith. Also operates on
12V DC car battery.
DFX-160B can be mounted in a standard 19” rack
using 1U height with the help of two side brackets,
supplied alongwith.
4
• Front Panel Controls & Features
1. POWER Switch 6. OUTPUT Volume Control
For adjustment of the output
2. SELECT Switch signal level from the effects
For selecting the desired program processor.
settings out of the 16 preset
effects algorithms available from 7. PEAK / MUTE LED
DFX-160B. This red LED has two modes of
indication, namely PEAK & MUTE.
3. VARIATIONS Switch In PEAK indication, the LED
This rotary switch provides 16 flickers to indicate the presence of
different preset variations of decay excessive signal at the input of the
time, modulation depth, effects processor, resulting in
regeneration etc. depending on distorted output. This can be
the type of program selected. avoided by reducing the level of
4. INPUT Volume Control input signal through INPUT
For adjustment of the signal level volume control.
being fed at the input of the effects
processor. In MUTE indication, the LED
glows continuously in two
5. MIX Control situations:
For adjustment of the desired mix
of dry (unprocessed) & wet • When the footswitch has been
(processed) signal level available used to disable the presence of
at the output. At position ‘dry’, the wet signal.
output signal comprises of only
unprocessed signal. In order to • When Select or Variations switch
raise the level of wet signal, turn is being used to select desired
up the MIX volume control to a effects setting.
desired position. At position ‘wet’,
only processed signal is available
at the output.
5
power mono
chorus
flanger
vibrato
rev+ delay
rev + chorus
flanger
+
rev vibrato
+
rev warm hall bright hall
warm room
bright room
warm vocal
bright vocal
plate reverb
stereo delay
delay
8
9
10
11
12
13
14
15 16 123
4
5
6
7
variations input mix output
min dry min
max wet max peak
mute
1 2 3 4 5 6 7
19” Rack Installation
Supplied with brackets suitable for 19” rack mounting.
Si e rcket
dB a Si e r cket
dBa

• Features / General Description of Product
+
+
+
+
+
+
+
+
+
+
Robust and elegant design for quality sound effects in
a wide variety of PA and Pro Audio applications.
Easy selection of 16 preset effects through a rotary
switch. These 16 effects programs consist of seven
types of reverb effects, two types of delay effects,
three types of modulation effects and four types of
dual effects.
Each program provides 16 selectable variations
resulting in a total of 256 preset combinations through
DFX-160B.
Accepts mono input through a ¼" unbalanced jack
socket.
Separate ¼" unbalanced jack socket for left and right
outputs.
Individual volume control for input and output signals.
Mix volume control adjusts the level of dry and wet
signal content in the output.
Facility to connect a foot switch through a ¼" jack
socket. Foot switch is used to bypass or enable the
presence of wet (processed) signal in the output.
Operates on 220-240V AC mains through a dedicated
12V DC adaptor, supplied alongwith. Also operates on
12V DC car battery.
DFX-160B can be mounted in a standard 19” rack
using 1U height with the help of two side brackets,
supplied alongwith.
4
• Front Panel Controls & Features
1. POWER Switch 6. OUTPUT Volume Control
For adjustment of the output
2. SELECT Switch signal level from the effects
For selecting the desired program processor.
settings out of the 16 preset
effects algorithms available from 7. PEAK / MUTE LED
DFX-160B. This red LED has two modes of
indication, namely PEAK & MUTE.
3. VARIATIONS Switch In PEAK indication, the LED
This rotary switch provides 16 flickers to indicate the presence of
different preset variations of decay excessive signal at the input of the
time, modulation depth, effects processor, resulting in
regeneration etc. depending on distorted output. This can be
the type of program selected. avoided by reducing the level of
4. INPUT Volume Control input signal through INPUT
For adjustment of the signal level volume control.
being fed at the input of the effects
processor. In MUTE indication, the LED
glows continuously in two
5. MIX Control situations:
For adjustment of the desired mix
of dry (unprocessed) & wet • When the footswitch has been
(processed) signal level available used to disable the presence of
at the output. At position ‘dry’, the wet signal.
output signal comprises of only
unprocessed signal. In order to • When Select or Variations switch
raise the level of wet signal, turn is being used to select desired
up the MIX volume control to a effects setting.
desired position. At position ‘wet’,
only processed signal is available
at the output.
5
power mono
chorus
flanger
vibrato
rev+ delay
rev + chorus
flanger
+
rev vibrato
+
rev warm hall bright hall
warm room
bright room
warm vocal
bright vocal
plate reverb
stereo delay
delay
8
9
10
11
12
13
14
15 16 123
4
5
6
7
variations input mix output
min dry min
max wet max peak
mute
1 2 3 4 5 6 7
19” Rack Installation
Supplied with brackets suitable for 19” rack mounting.
i t
S de Bracke it
S de Bracke

• Rear Panel Controls & Features
8. INPUT Jack Socket 10. FOOT SWITCH Jack Socket
Used for connecting signal For connecting an external foot
sources like an AUX SEND (Post switch through a ¼" phone plug.
Fade) of a mixer, the preamp The foot switch is used to enable
output of a PA mixer, an I / O or disable the presence of wet
insert of a mixing console and the (processed) signal at the output of
send / return of a powered the effects processor. The
speaker. absence of wet signal is indicated
by MUTE LED on the front panel.
9. OUTPUT Jack Sockets
In mono applications, either of the 11. POWER Socket
LEFTorRIGHToutputjacksockets For connecting the 12V DC power
can be connected to the Aux input supply adaptor, as supplied
of a PA amplifier, Line input of a alongwith.
directcoupledamplifier(whenused
in mono mode), an I / O insert of a
mixer or the send / return of a
poweredspeaker.
In stereo applications, for
connecting to AUX RETURN
inputs of a mixing console, the
Line input of a direct coupled
amplifier (when used in stereo
mode) or the Line inputs of a two
zone amplifier.
6
12V dc
footswitchoutputinput
right left (mono)
8 9 10 11
• Interconnections
+
+
+
+
+
+
The effects processor can be used effects processor before the power
as a table top unit. The unit should is turned ON.
be situated so that its location or To avoid signal overloading,
position does not get affected by distortion and to minimize the noise,
the heat of the amplifier. it is necessary to set the proper
The effects processor must always signal levels at every point in the
be powered through a 12V DC send / return chain.
adaptor, supplied alongwith. The connection diagrams that
Always insert the adaptor plug into follow display the typical types of
the 12V DC socket of the unit and input sources and output
then connect the adaptor to an AC equipments which can be
mains outlet. connected to the effects processor.
For correct connections and
When foot switch is to be used, operation, check the specification of
always connect the foot switch to the connected equipment.
the bypass jack socket of the
7
Foot Switch
Preamp
Output
MX-15
MX-15
SSA-250M
BTZ-7000
SSA-250M
BTZ-7000
ZONE-A ZONE-A
Line
Input
Aux
Input
DFX-160B (Rear Panel)
12V DC Adaptor
Mixing Console
P r o S e r i e s
A M X - 1 6 1 2
Aux
Return
(L & R)
Aux Send
(Post Fade)
12V dc
footswitchoutputinput
right left (mono)
PSX-1200
Mic-1 Return
Mic-1 Send

• Rear Panel Controls & Features
8. INPUT Jack Socket 10. FOOT SWITCH Jack Socket
Used for connecting signal For connecting an external foot
sources like an AUX SEND (Post switch through a ¼" phone plug.
Fade) of a mixer, the preamp The foot switch is used to enable
output of a PA mixer, an I / O or disable the presence of wet
insert of a mixing console and the (processed) signal at the output of
send / return of a powered the effects processor. The
speaker. absence of wet signal is indicated
by MUTE LED on the front panel.
9. OUTPUT Jack Sockets
In mono applications, either of the 11. POWER Socket
LEFTor RIGHToutputjacksockets For connecting the 12V DC power
can be connected to the Aux input supply adaptor, as supplied
of a PA amplifier, Line input of a alongwith.
directcoupledamplifier(whenused
in mono mode), an I / O insert of a
mixer or the send / return of a
poweredspeaker.
In stereo applications, for
connecting to AUX RETURN
inputs of a mixing console, the
Line input of a direct coupled
amplifier (when used in stereo
mode) or the Line inputs of a two
zone amplifier.
6
12V dc
footswitchoutputinput
right left (mono)
8 9 10 11
• Interconnections
+
+
+
+
+
+
The effects processor can be used effects processor before the power
as a table top unit. The unit should is turned ON.
be situated so that its location or To avoid signal overloading,
position does not get affected by distortion and to minimize the noise,
the heat of the amplifier. it is necessary to set the proper
The effects processor must always signal levels at every point in the
be powered through a 12V DC send / return chain.
adaptor, supplied alongwith. The connection diagrams that
Always insert the adaptor plug into follow display the typical types of
the 12V DC socket of the unit and input sources and output
then connect the adaptor to an AC equipments which can be
mains outlet. connected to the effects processor.
For correct connections and
When foot switch is to be used, operation, check the specification of
always connect the foot switch to the connected equipment.
the bypass jack socket of the
7
Foot Switch
Preamp
Output
MX-15
MX-15
SSA-250M
BTZ-7000
SSA-250M
BTZ-7000
ZONE-A ZONE-A
Line
Input
Aux
Input
DFX-160B (Rear Panel)
12V DC Adaptor
Mixing Console
P r o S e r i e s
A M X - 1 6 1 2
Aux
Return
(L & R)
Aux Send
(Post Fade)
12V dc
footswitchoutputinput
right left (mono)
PSX-1200
Mic-1 Return
Mic-1 Send

• Typical Applications
ConnectingDFX-160B to a mixing consolewith anAUX SEND(Post Fade)
andStereoAUXRETURN
8
A
DFX-160B
Right
Output
Input P r o S e r i e s
A M X - 1 6 1 2
Mixing Console Aux Send
(Post Fade)
Aux
Return
L
Aux
Return
R
Left (Mono)
Output
12V dc
footswitchoutputinput
right left (mono)
• Typical Applications....
ConnectingDFX-160BtotheI/Oinsertofamixingconsole
DFX-160B
Left (Mono)
Output
Input
C
Wiring sequence of connection cable for I / O Insert
¼" Jack Plug
Return
Ground
Send I / O Insert
of a mixing
console
Send Ground
¼" Jack Plug
¼" Jack Plug
DFX-160B
Input
Return Ground
DFX-160B Left
(Mono) Output
P r o S e r i e s
A M X - 1 6 1 2
Mixing Console
I / O Insert
12V dc
footswitchoutputinput
right left (mono)
9
Connecting a musical instrument like guitar to the INPUT, a mixing console
to the LEFT (MONO) OUTPUT and a foot switch to the FOOTSWITCH
socketoftheDFX-160B
B
DFX-160B
Input
Left (Mono)
Output
Guitar
PA Mixer AMX-1412
AMX-1412
Footswitch
Foot Switch
Line Input
12V dc
footswitchoutputinput
right left (mono)
ConnectingDFX-160BtoaPAmixerandatwozoneamplifier
D
Right Output
DFX-160B
Left (Mono)
Output
Input
Preamp
Output
PA Mixer MX-15
MX-15
Zone B Input Zone A Input
Two Zone Amplifier
BTZ-7000
BTZ-7000
ZONE-A ZONE-A
12V dc
footswitchoutputinput
right left (mono)

• Typical Applications
ConnectingDFX-160B to a mixing consolewith anAUX SEND(Post Fade)
andStereoAUXRETURN
8
A
DFX-160B
Right
Output
Input P r o S e r i e s
A M X - 1 6 1 2
Mixing Console Aux Send
(Post Fade)
Aux
Return
L
Aux
Return
R
Left (Mono)
Output
12V dc
footswitchoutputinput
right left (mono)
• Typical Applications....
ConnectingDFX-160BtotheI/Oinsertofamixingconsole
DFX-160B
Left (Mono)
Output
Input
C
Wiring sequence of connection cable for I / O Insert
¼" Jack Plug
Return
Ground
Send I / O Insert
of a mixing
console
Send Ground
¼" Jack Plug
¼" Jack Plug
DFX-160B
Input
Return Ground
DFX-160B Left
(Mono) Output
P r o S e r i e s
A M X - 1 6 1 2
Mixing Console
I / O Insert
12V dc
footswitchoutputinput
right left (mono)
9
Connecting a musical instrument like guitar to the INPUT, a mixing console
to the LEFT (MONO) OUTPUT and a foot switch to the FOOTSWITCH
socketoftheDFX-160B
B
DFX-160B
Input
Left (Mono)
Output
Guitar
PA Mixer AMX-1412
AMX-1412
Footswitch
Foot Switch
Line Input
12V dc
footswitchoutputinput
right left (mono)
ConnectingDFX-160BtoaPAmixerandatwozoneamplifier
D
Right Output
DFX-160B
Left (Mono)
Output
Input
Preamp
Output
PA Mixer MX-15
MX-15
Zone B Input Zone A Input
Two Zone Amplifier
BTZ-7000
BTZ-7000
ZONE-A ZONE-A
12V dc
footswitchoutputinput
right left (mono)

10
• Typical Applications....
ConnectingDFX-160BtotheSEND/RETURNofapoweredspeaker
EPowered Speaker
PSX-1200
Mic-1
Send / Return
Wiring sequence of connection cable for Send / Return
¼" Jack Plug
Return
Ground
Send Mic-1
Send / Return
of PSX-1200
Send Ground
¼" Jack Plug
¼" Jack Plug
DFX-160B
Input
Return Ground
DFX-160B
Left (Mono)
Output
Connecting DFX-160B to the PRE AMP output and AUX input of a PA
amplifier
F
DFX-160B
Input
Left (Mono)
Output
SSA- 5000EM
Aux Input
Preamp Output
PAAmplifier
SSA-5000EM
12V dc
footswitchoutputinput
right left (mono)
DFX-160B
Left (Mono)
Output
Input
12V dc
footswitchoutputinput
right left (mono)
• Specifications
11
Outputs 1V / 470 (Rated), 2.2V (Max.)
Input 1V / 10k (Rated),
2.2V for Max. Output
Distortion (THD + N) 0.02%
S / N Ratio 80dB
Frequency Response 20Hz - 20kHz (±2dB)
Digital Processor 24 Bit Digital Effects Processor
Maximum Delay 500 Milliseconds
Main Programs 16
Total Preset Combinations 256
Indicators Power LED
(Power switch knob glows at Power ON)
Peak / Mute LED
Power Supply AC: 220-240V 50/60Hz for 12V DC Adaptor
DC: 12V Car Battery
Dimensions W210 ? H45 ? D145 mm
Weight 0.95kg (approx.)
• Design and Specifications are subject to change without notice owing to continuous product upgradation.
• Technical specifications are subject to production tolerances.

10
• Typical Applications....
ConnectingDFX-160BtotheSEND/RETURNofapoweredspeaker
EPowered Speaker
PSX-1200
Mic-1
Send / Return
Wiring sequence of connection cable for Send / Return
¼" Jack Plug
Return
Ground
Send Mic-1
Send / Return
of PSX-1200
Send Ground
¼" Jack Plug
¼" Jack Plug
DFX-160B
Input
Return Ground
DFX-160B
Left (Mono)
Output
Connecting DFX-160B to the PRE AMP output and AUX input of a PA
amplifier
F
DFX-160B
Input
Left (Mono)
Output
SSA- 5000EM
Aux Input
Preamp Output
PAAmplifier
SSA-5000EM
12V dc
footswitchoutputinput
right left (mono)
DFX-160B
Left (Mono)
Output
Input
12V dc
footswitchoutputinput
right left (mono)
• Specifications
11
Outputs 1V / 470 (Rated), 2.2V (Max.)
Input 1V / 10k (Rated),
2.2V for Max. Output
Distortion (THD + N) 0.02%
S / N Ratio 80dB
Frequency Response 20Hz - 20kHz (±2dB)
Digital Processor 24 Bit Digital Effects Processor
Maximum Delay 500 Milliseconds
Main Programs 16
Total Preset Combinations 256
Indicators Power LED
(Power switch knob glows at Power ON)
Peak / Mute LED
Power Supply AC: 220-240V 50/60Hz for 12V DC Adaptor
DC: 12V Car Battery
Dimensions W210 ? H45 ? D145 mm
Weight 0.95kg (approx.)
• Design and Specifications are subject to change without notice owing to continuous product upgradation.
• Technical specifications are subject to production tolerances.

Model No.......................................................................................................
Dealer's Name ..............................................................................................
Dealer's Phone No........................................Fax No. ...................................
Date of Purchase .........................................................................................
1K/10/07
AHUJA RADIOS • 215, Okhla Industrial Estate, New Delhi - 110 020, INDIA
Tel.: [phone] Fax : [phone]
E-mail: [email protected], [email protected]
Website: www.ahujaradios.com
®
is a registered trademark of Ahuja Radios in India
and other countries.
© Copyright Ahuja Radios, 2007. All rights reserved.Any
unauthorized reproduction or use of logos, images or
design elements is strictly prohibited by law.
No part of the compilation may be reproduced in any
manner or translated without written permission.
• For Your Records