Clarity SEQ-1 User manual

1
SEQ-1
Issue 2
[phone]
SEQ-1
SEVEN BAND EQUALIZER
INTRODUCTION
These instructions contain the specifications and
information necessary to install, operate, and
maintain the SEQ-1, Seven Band Equalizer,
manufactured by Clarity, 1111 Industry Avenue,
Roanoke, VA 24013.
SPECIFICATIONS
Features
•7 active filters
•Modified 1 octave equalization
•+12 dB boost or cut
•Constant Q equalization
•Rocker-type power switch
•Power "ON" indicator
•Bypass switch to remove EQ from circuit
(slide type)
•High impedance output
•Line output
Nominal Specifications
•Type of Inputs:
Hi impedance 10K ohms (unbalanced)
Stereo HiZ 10K ohms (unbalanced)
•Type of Outputs: Line (balanced)
Hi impedance 10K ohms (unbalanced)
•Frequency Response: 35 Hz -20 kHz +1dB
•Distortion: < 0.3%
•Frequency Centers: Band 1 = 60 Hz
2 = 200 Hz
3 = 560 Hz
4 = 1100 Hz
5 = 2200 Hz
6 = 4500 Hz
7 =10000Hz
Power Requirements
•-24 VDC
•150 mA
Dimensions
•8.6"W x 3.5"H x 5.5"D
(21.8cm W x 8.9cm H x 14.0cm D)
Environment
•Temperature: 0 to 50 Degrees C
•Humidity: 0-85% non-precipitating
OPERATION
The SEQ-1 is used to boost or attenuate specific
frequencies to improve voice intelligibility or
attenuate frequencies to help reduce feedback. The
unit can also be used to modify the frequency
response of speakers.
A "POWER" switch, "POWER" indicating LED, 7
slide controls (1 for each of the bands), and "EQ"
bypass switch are located on the front of the unit.
The frequencies boost/cut (1 to 12 dB), are modified
with each filter's slide control. The manual "EQ"
bypass switch allows comparison of before
equalization, and after effect, in the area being
equalized. All frequency adjustments are bypassed
when the "EQ IN/OUT" switch is in the "OUT"
position.
INSTALLATION
The SEQ-1 was designed for shelf or rack mounting
(two units can be mounted side by side in a 19"
equipment rack - rack mounting requires the SEQ-
RMK rack mount kit).
Connections are accomplished utilizing (3) phono
jacks (2 input, 1 output) and/or (9) screw terminals.
Only qualified service personnel should install the
SEQ-1. See Figures 1 and 2 for actual connections.
All connections should be made and double checked
before DC power is supplied to the unit.
947447

2
TECHNICAL ASSISTANCE
When trouble is reported, verify that DC power is
being supplied to the unit and there are no shorts or
grounds on cabling. Assistance in troubleshooting is
available from the factory. When calling, you should
have a VOM and a telephone test set available and be
calling from the job site. Call [phone] and
ask for Technical Support.
CLARITY maintains service facilities in Roanoke,
VA. Should repairs be necessary, attach a tag to the
unit clearly stating company name, address, phone
number, contact person, and the nature of the
problem. Send the unit to:
Repair and Return Dept.
Clarity
5614 Hollins Road
Roanoke, VA 24019
LIMITED WARRANTY
Clarity warrants its products to be free from defects in materials and workmanship under conditions of normal use and service for a
period of one year from the date of shipment. The obligation under this warranty shall be limited to the replacement, repair or refund of
any such defective device within the warranty period, provided that:
1. Inspection by Clarity indicates the validity of the claim;
2. The defect is not the result of damage, misuse, or negligence after the original shipment;
3. The product has not been in any way repaired by others and that factory sealed units are unopened (A service charge plus
parts and labor will be applied to units defaced or physically damaged);
4. Freight charges for the return of products to Clarity are prepaid;
5. All units " out of warranty" are subject to a service charge. The service charge will cover minor repairs (Major repairs will be
subject to additional charges for parts and labor).
This warranty is in lieu of and excludes all other warranties expressed or implied, and in no event shall Clarity be liable for
any anticipated profits, consequential damages, loss of time or other losses incurred by the buyer in connection with the
purchase, operation or use of the product.
This warranty specifically excludes damage incurred in shipment. In the event a product is received in damaged condition, the carrier
should be notified immediately. Claims for such damage should be filed with the carrier involved in accordance with the F.O.B. point.

3
LEFT RIGHT
GND -24
VDC
SEQ-1
For Hardwired Connections
AMPLIFIER
AUX
INPUT IN OUT
POWER SUPPLY
EFFECTS LOOP SPEAKER
-24VDC
GND
AUDIO
INPUTS AUDIO
OUTPUT
LEFT RIGHT
IN GND OUT GND OUT GND GND -24
VDC
AUDIO
INPUT AUDIO
OUTPUT LINE
OUT
SEQ-1
For Hardwired Connections POWER SUPPLY
LEFT RIGHT
OUTPUT
MUSIC SOURCE AMPLIFIER
AUX
INPUT
SPEAKER
-24VDC
GND
FIGURE 1 - MUSIC SOURCE CONNECTIONS
FIGURE 2 - EFFECTS LOOP CONNECTIONS
Clarity
Clarity
IN GND OUT GND OUT GND
AUDIO
INPUT AUDIO
OUTPUT LINE
OUT
AUDIO
INPUTS AUDIO
OUTPUT