SEQ 302F
Professional Dual 30-Band Stereo Graphic Equalizer
with Feedback Detection System
CHANNEL1
+12
0
-12
SEQ 302F
25Hz 31 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1K25 1K6 2K 2K5 3K15 4K 5K 6K3 8K 10K 12K5 16K 20KHz
Dual 30 Band Equalizer
With Feedback
Indicator System
+12
0
-12
CHANNEL 2
OUTPUT
1
2
INPUT
12
1
3
12
2
3
FUSE: T1AL/250V
240V~/50Hz,50 Watts
THIS UNIT MUST BE EARTHED.
WARNING :
KEEP WELLVENTILATED.
POWER
FEEDBACK
INDICATION
+12
OFF
0
ON
-12
LF
CUT
FREQUENCY
FEEDBACK
INDICATION
+12
OFF
0
ON
-12
LF
CUT
OFF
ON
ON
IN
BYPASS
EQ
BYPASS
ON
IN
BYPASS
EQ
BYPASS
SEQ 302F
-20 -15 -10 -5 0 +8 +20
+20
0
-20
DISPLAY
-20 -15 -10 -5 0 +8 +20
+20
0
-20
DISPLAY
SERIALNUMBER
MADEIN P.R.C.
+6dB
0dB
8
LEVEL
+6dB
0dB
8
LEVEL
Index:
1. Safety Instructions
2. Introduction
3. Features
4. Operation
5. Technical Specifications
6. Setup Diagrams
1. Safety Instructions
CAUTION: To reduce risk of electrical shock, do not remove the cover.
There are no serviceable parts inside the device. Maintenance &
service operations are only to be carried out by authorized dealers.
WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture.:
This symbol indicates that dangerous voltage constituting risk of electric shock is present within this unit.
This symbol indicates that there are important operating and maintenance instructions in the literature
accompanying this unit.
•
If the device has been exposed to extreme temperature fluctuation (e.g. after transportation), do not switch it on
immediately. The arising condensation might damage your device. Leave the device switched off until it has reached
room temperature.
•
The voltage and frequency must be the same as stated on the device. Wrong voltages or power outlets can lead to
damage of the device & fatal electrical shock.
•
Always plug in the power plug last. Make sure that the plug is connected properly to the outlet.
•
All operation & user instruction should be followed.
•
The product should be kept away from water & moisture.
•
Make sure the product is always well ventilated keep it away from extreme heat or cold.
• Make sure the power cord should be routed so that they do not get pinched & get subject to wear or tear.
• Always use a dry cloth to clean the product.
• Do Not drop the product, as it may cause the product to mal-function.
Factory Repair Service maybe required in the following circumstances:
• The Power supply cord or the plug has been damaged.
• If the product has been exposed to liquid spillage, rain or heavy moisture.
• If the product exhibits a change in performance & doesn’t operate properly.
• If the product is damaged due to it being dropped.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
2. Introduction
Thank You for purchasing the Studiomaster Professional SEQ 302F, Dual 30-Band stereo graphic equalizer.
To ensure maximum performance and safety, please follow this instruction manual carefully.
Please retain this manual for future reference.
For any complaint, feedback or testimonials please contact our Distributor / Dealer.
The Feedback Detection System is one of the most outstanding characteristics of our graphic equalizer. This ingenious circuitry
lets you immediately recognize & eliminate feedback frequencies. The Feedback Detection System uses the LEDs to indicate
the critical frequencies. This way, one can easily identify & control the particular frequency feedback.
3. Features
•
Professional Dual 30-Band stereo graphic equalizer with Constant Q factor for live sound and install applications.
•
Feedback detection system with LED for each frequency instantly reveals the critical frequencies.
•
Durable & Accurate 20mm Faders for easy level setting of each frequency.
•
Range setting between +12dB/-12dB to give the gradual variation required.
•
Low Frequency cut & EQ bypass switches.
• Balanced inputs and outputs with 1/4” TRS and XLR connectors.
1
4. Operation
Front Panel Introduction
NOTE: Channel 1 and 2 are identical.
CHANNEL1
+12
0
-12
SEQ 302F
25Hz 31 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1K25 1K6 2K 2K5 3K15 4K 5K 6K3 8K 10K 12K5 16K 20KHz
Dual 30 Band Equalizer
With Feedback
Indicator System
+12
0
-12
CHANNEL 2
1
Boost/Cut fader:
1. This fader is used to boost or cut a dedicated frequency.
8
FEEDBACK
INDICATION
+12
OFF
0
ON
-12
FREQUENCY
FEEDBACK
INDICATION
+12
OFF
0
ON
-12
2
LF
CUT
LF
CUT
ON
IN
BYPASS
EQ
BYPASS
ON
IN
BYPASS
EQ
BYPASS
3
-20 -15 -10 -5 0 +8 +20
+20
0
-20
LEVEL
DISPLAY
-20 -15 -10 -5 0 +8 +20
+20
0
-20
LEVEL
DISPLAY
4
+6dB
0dB
8
+6dB
0dB
8
10
7
5
6
9
a. Moving the fader upward will boost frequency upto +12dB.
b. Moving the fader downward will cut frequency upto -12dB.
2. : This switch is used to cut/attenuate signals below 63Hz. The low cut is activated when switch is in
Low cut switch
''pressed'' position.
3. : This LED lights up when the low cut mode is in operation.
Low cut LED
4. : This switch is used to activate the EQ IN/Bypass mode. When switch is in ''Released'' position,
EQ IN/Bypass switch
EQ IN mode is active and if the switch is in ''Pressed'' position, EQ is ''Bypassed''.
5. : This LED lights up when EQ is by passed.
EQ Bypass Status LED
.
6 : This fader sets the signal level to the Equalizer.
Input level fader
7.
Bargraph
8. : This LED lights up when there will be feedback generation.
Feedback Indication LED
9. : Feedback indication LED brightness can be controlled by display fader.
Display Fader
10. LED lights to indicate equalizer power on status.
Power On LED:
: It will show the signal level. Red led indicates the clipping of the signal.
Rear Panel Introduction
OUTPUT
1
2
11
11. The SEQ 302F has provisions for both XLR & TRS (Phono) output.
Signal Output Connector:
12. The SEQ 302F has both XLR & TRS (Phono) input connectors.
Signal Input Connector:
13. Plug the supplied cord into the power supply socket. (Before using the product, check if the
AC Cord & Fuse:
INPUT
12
12
1
3
FUSE: T1AL/250V
12
2
3
240V~/50Hz,50 Watts
THIS UNIT MUST BE EARTHED.
WARNING :
KEEP WELLVENTILATED.
13
POWER
14
OFF
SEQ 302F
ON
SERIAL NUMBER
MADEIN P.R.C.
power supply is correct). If the fuse is broken, please replace with a fuse of the same type.
14. This switch is used to switch the Equalizer On/OFF.
Power On/Off Switch:
How to use Feedback Function:
• If there is feedback in the system, the feedback detection LEDs indicate frequency ranges with the highest energy levels.
If you keep an eye on the LEDs while you play back your music (or during the sound check before a show), you can
easily identify those frequencies causing feedback. Similarly, increased signal levels on individual frequency bands
indicate a higher likelihood that feedback may occur.
• If feedback occures, pull down the respective faders whose LEDs are lit until the feedback subsides. Repeat this procedure
to eliminate other possible feedback frequencies.
2
• Leave all other faders in the middle position if there is no need for frequency correction.
• Do not touch other settings (mixer gain, amplifier volume..etc), and you will have a tremendous amount of headroom
available to you, without creating audible feedback.
• The brightness of LED's can be controlled by display Fader (Please see point 9).
5. Technical Specifications:
Input Impedance
Output Impedance
Input Output Connectors
Frequency Response
EQ Center Frequency
EQ Cut/Boost
Sub Woofer Frequency
Low Cut
S/N Ratio
THD
Power Supply
Power Consumption
Dimensions (W x D x H)
Net Weight
Bal: 12.7K Ω
Bal : 600 Ω
XLR & TRS
20Hz - 20 KHz
25Hz, 31Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz,
125Hz, 160Hz, 200Hz, 250Hz, 315Hz, 400Hz,
500Hz, 630Hz, 800Hz, 1KHz, 1.25KHz, 1.6KHz,
2KHz, 2.5KHz, 3.15KHz, 4KHz, 5KHz, 6.3KHz,
8KHz, 10KHz, 12.5KHz, 16KHz, 20KHz
±12dB
63Hz - 315Hz
63Hz, -3dB
> 90 dB
0.01%
230V AC (50 60Hz)
25W
485 x 170 x 90mm
3.15 Kg
~
3
6. Setup Diagram
Self Declaration-Conforming to
IS 616 : 2010, R-75000108
CH2
OUT
WARRANTYVOIDS IF
SERIALNO. IS MISSING
SENSITIVITY
LIMITER
0.775V
OFF ON
1.2V
Output Connections
Bridged Mode
Stereo Mode
Mono Mode
CH1 only
+1 = speaker +
+2 = speaker +
-1 = speaker -
-2 = speaker -
FOR MONO OR BRIDGE MODE USE INPUT CH1.
LOW-CUT
OFF ON
CH1/
BRIDGE
OUT
PA 2.0
V1
CHANNEL1
+12
0
-12
SEQ302F
25Hz 31 40 50 63 80 100 125 160 200 250 315 400 500 630 800 1K 1K25 1K6 2K 2K5 3K15 4K 5K 6K3 8K 10K 12K5 16K 20KHz
Dual 30 Band Equalizer
With Feedback
Indicator System
+12
0
-12
CHANNEL2
OUTPUT
1
2
INPUT
12
1
3
12
2
3
MICROPHONES
WIRELESS
MICROPHONE
-12dB -12dB -12dB -12dB -12dB -12dB -12dB -12dB -12dB -12dB -12dB -12dB
+8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8 +8-40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40 -40
-60 -60 -60 -60 -60 -60 -60 -60 -60 -60 -60 -60
000000000000
+16 +16 +16 +16 +16 +16 +16 +16 +16 +16 +16 +16
-16 -16 -16 -16 -16 -16 -16 -16 -16 -16 -16 -16
000000000000
-16 -16 -16 -16 -16 -16 -16 -16 -16 -16 -16 -16
+16 +16 +16 +16 +16 +16 +16 +16 +16 +16 +16 +16
LF LF LF LF LF LF LF LF LF LF LF LF
000000000000
+16 +16 +16 +16 +16 +16 +16 +16 +16 +16 +16 +16
-16 -16 -16 -16 -16 -16 -16 -16 -16 -16 -16 -16
AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1
555555555555
POST POST POST POST POST POST POST POST POST POST POST POST
AUX2 AUX2 AUX2 AUX2 AUX2 AUX2 AUX2 AUX2 AUX2 AUX2 AUX2 AUX2
555555555555
PRE PRE PRE PRE PRE PRE PRE PRE PRE PRE PRE PRE
PAN PAN PA N PA N PAN PAN PAN PA N PA N PA N PA N PA N
000000000000
L5 L5 L5 L5 L5 L5 L5 L5 L5 L5 L5 L55R 5R 5R 5R 5R 5R 5R 5R 5R 5R 5R 5R
ON ON ON ON ON ON ON ON ON ON ON
MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE MUTE
CLIP CLIP CLIP CLIP CLIP CLIP CLIP CLIP CLIP CLIP CLIP
+6 +6 +6 +6 +6 +6 +6 +6 +6 +6 +6
00000000000
8
8
8
8
8
8
8
8
8
1234567891011
8
LEFT/
MONO
RIGHT
MIC
GAIN
-10 +60
LINE
GAIN
+10 -20
-16
+16
-16
+16
LF
-16
+16
5
AUX1
EFX
POST
5
AUX2
PRE
0
BAL
L5
5R
ON
ON
ON
MUTE
MUTE
MUTE
CLIP
CLIP
+6
+6
+6
0
0
0
8
8
8
8
EFX
13
13
12
WARNING :
KEEP WELLVENTILATED.
LROUTPUT
EFX ON
ON
12
DELAY
MIN MAX
LEFT
MIN MAX
FEEDBACK
DELAY
SELECTION
Delay 1
Delay 2
E-Delay
5
0
L5 5R
55
• Delay 1 : 80mSec - 330mSec
• Delay 2 : 390mSec - 340mSec
• E-Delay : 80mSec - 330mSec
AUX1 AUX2
CLIP
LEVEL
L
FUSE: T1AL/250V
240V~/50Hz,50 Watts
THIS UNIT MUST BE EARTHED.
AUX SEND
AUX RETURN
RIGHT
PEAK
2
+1
0dB
-1
2
3
5
7
10
13
20
RETURN
5
LEVEL
0
PAN
L5 5R
SEND
LEVEL
10
+5
0dB
-5
10
20
30
40
8
MONO OUT
DIAMOND
Supreme 12
LR
+6
0
8
R
FEEDBACK
INDICATION
-20-15 -10 -5 0 +8 +20
ON
POWER
+12
OFF
0
ON
-12
CUT
FREQUENCY
FEEDBACK
INDICATION
+12
OFF
0
ON
-12
CUT
OFF
ON
BYPASS
LF
BYPASS
LF
IN
EQ
BYPASS
-20-15 -10 -5 0 +8 +20
ON
IN
EQ
BYPASS
SEQ 302F
+6dB
+20
0
0dB
8
-20
LEVEL
DISPLAY
+6dB
+20
0
0dB
8
-20
LEVEL
DISPLAY
SERIALNUMBER
MADEIN P.R.C.
POWER
+48 PHANTOM
TAPE
RECORD
PLAYBACK
6R MIN
PHONES
CD PLAYER
MONO
4
Range of Studiomaster Professional Products.
Wired Microphones
SM 100XLR
TRIO 100
SM 200XLR
TRIO 200
SM 300I
SM 400XLR
SM 450XLR
SM 500XLR
SM 600XLR
SM 650XLR
SM 800C
SM 900C
SBM 10
SBM 20
Flex 2/Flex 2B
Flex 4
Wireless Microphones
BR 28 Series
BR 48 Series
ER 7 Series
ER 11 Series
ER 31 Series
ER 58 Series
KR 12 Series
TR 47 Series
XR 40 Series
XR 100 Series
Conference System
Vak 10 System
Vak 10s
Vak 10d / Vak 10c
Vak 20
Crossovers
SX-2
SX-321
SX-521
Processors
SEQ 152
SEQ 302F
SEQ 312
Multi 3
SFX 8
SPS 8
SDX 4
Phantom 11
Mixers
~ Cub Series
CUB 4
CUB 6
CUB 6U
~ Air Series
AiR 2
AiR 4
AiR 6
AiR 8
AiR 12
AiR 16
AiR Pro 24
AiR Pro 28
AiR Pro 36
~ Air Series
AiR X 10
AiR X 14
AiR X 18
~ AQUA Series
Aqua 6
Aqua 8
Aqua 10
Aqua 14
~ Digital Mixer
D. Mix 20
~ Diamond Club Series
Diamond Club 6.2
Diamond Club 8.2
Diamond Club 8.2 EFX
Diamond Club 12.2
Diamond Club 12.2EFX
Diamond Club 12.2USB
Diamond Club 16.2
Diamond Club 16.2EFX
~ Diamond Supreme Series
Diamond Supreme 7
Diamond Supreme 12
Diamond Supreme 12U
Diamond Supreme 16U
~ Club 2000 Series
C 142
C 142EFX
C 182
~ Platinum Series
Platinum 12 Fx
Platinum Basic MKI
Platinum 16 Fx
~ Diamond Pro-3 Series
Diamond Pro-3 12.3
Diamond Pro-3 16.3
~ DJ Mixers
DJX 300
DJX 325
Playmix 300
DJX 825
DJX 825
DJX 875
DJX 925
DJX 975
CD/USB Media Player
MP 2000
Amplifiers
~ P - Series
PA 1.5
PA 2.0
PA 3.0
PA 4.5
PA 6.0
PA 7.5
~ DPA Series
DPA 2000
DPA 3200
DPA 4500
DPA 5000
~ DJA Series
DJA 100
DJA 500
DJA 800
DJA 1600
DJA 2500
DJA 3200
DJA 4000
DJA 5000
XJA 2600
~ Arena Series
Arena 20
Arena 30
~ Industrial Amplifier
ARC 120A
ARC 240A
ARC 480A
Speaker Component
~ S-Series
SWF 18120
SWF 18100
SWF 1880
SWF 1560
SMB 1565
SMB 1545
SMB 1530
SMB 1250
SMB 1230
SMB 1220
SHF 0104
SHF 0210
~ E-Series
EMB 1225
EMB 1530
~ TITAN Series
TWF 2115
TWF 1815
TWF 1811
TWF 1580
TMB 1555
TMB 1535
THF 0208
Passive Speakers
~ S-Series
S5225
S8018
S8118
S8128
S8028
~ Fire Series
Fire 21 / Fire 51
Fire 51A
Fire 55 /
Fire 57
Fire 82
Fire 84
~ XVP Series
XVP 1225
XVP 1540
XVP 1540M
XVP 1560
XVP 2250
XVP 2550
XVP 2585
XVP 25A2
XVP 25A6
XVP 1808
XVP 1812
XVP 2820
EKS 151
Q 400
Powered Speaker
~ ARIA Series
Aria 8
Aria 12
Aria 15
~ A Series
A 200
A 400
A 500
A 600
H 400
~ B Series
B 200
B 400 (Black & White)
B 400U
B 400UB
~ OP Series
O 415
O 515
~ SUB Series
O 12SUB
O 15SUB
Line Array System
FIRE 92
SLA-40 T
SLA-40 Kit
SLA 30
S 9022
S 9022 (FK)
Stabilizers
SVC - S1000
SVC - S2000
SVC - S3000
SVC - S5000
SVC - S8000
SVC - S10000
SVC - S12000
Speaker Stand
SS 20S
WS 10
* Design and specification are subject to change without notice.
is a registered trademark of Audioplus in India. © Copyright Audioplus, 2008. All rights reserved. Any
unauthorised 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.
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.: +91-22-4286 / : +91-22-26871453
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Rev001/SM SEQ 302F/AUGUST 2016
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