Memphis EQL7 User manual

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EQL7
7-BAND GRAPHIC EQUALIZER
DESIGNED AND DEVELOPED IN THE UNITED STATES, MEMPHIS, TENNESSEE, SINCE 1965
800.489.2300
www.memphisaudio.com
122 Gayoso Ave.
Memphis,TN, USA @MEMPHISCARAUDIOUSA
@MEMPHISAUDIO
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SUB OUT AUX IN MAIN IN REAR OUT FRONT OUT
GND
+12V
REM
L R L R L R L R L R
E Q L7
SUB LEVEL VOLUME
MAIN
AUX
FADER 50Hz 125Hz 315Hz 750Hz 2.2kHz 6kHz 16kHz

EQL7
7-BAND GRAPHIC EQUALIZER
Memphis Audio built a 50+ year legacy in the audio industry engineering the highest quality products to
produce the best possible listening experience for our fans and loyal supporters. To fully appreciate our
products we recommend taking the time to read and follow the instructions in this manual. As always, we
recommend all installations and service be performed by an authorized Memphis Audio dealer.
For optimal performance, Memphis recommends using only Memphis Connection accessories. Outfitting
your system with properly sized Memphis Connection wire and accessories will dramatically boost your
listening experience and increase the durability of your Memphis Audio products.
Ready to Turn It Up? Read This First! Crossover Control
Set-Up and Adjustment
Features
Specifications
The EQL7 7-Band parametric EQ allows you to dial in your system for peak performance. The universal 1/2 din
design will fit easily in multiple applications and serve as the command center for your systems audio. Control
every aspect of your system from one device to lock in precision sound for the best possible audio experience.
• Active gain and pre-amp with input sensitivity
• Volume control with up to 9.75V RMS output
• Individual left and right sensitivity controls for MAIN/AUX
• 7-Band parametric equalizer with 18dB boost cut
• Low noise BI-FET op-amp design yields minimal distortion
• On-board 30V bi-polar switching power supply
• Universal 1/2 DIN chassis for easy, near universal installation
• High grade golden RCA Jack inputs/ Outputs
• Subwoofer level control
• Adjustable subwoofer frequency
• 20dB headroom eliminates signal overload
• MAIN/AUX input selector
• Dual color back-lighting for easy visibility
It is recommended that MID BASS/MIS/HI frequencies be set to a center position and that the SUB frequency be
set around 60Hz. You are able to adjust each band independently to its own exact position but remember that
the proper setting depends on the overall system itself and your own specific musical taste so you may need to
find your own personal sweet spot for maximum enjoyment.
PRIOR TO TURN ON
Turn the volume on the unit to minimum.
Adjust the input gains to minimum.
Turn the source unit volume to minimum.
Set EQ controls to flat (12 o’clock)
SYSTEM TURN ON
After completing all the wiring and signal connections you can turn the system on.
ADJUSTMENT
Raise the volume of the unit to MAX.
Adjust left and right input gains of the unit until they are half way between MIN/MAX.
Gradually increase the source volume until clipping occurs.
Begin gradually increasing input gains until the distortion is audible then backdown slightly
NOTE the system should be extremely loud at this time.
Turn the volume control down to minimum and back up to a comfortable level.
Volume changes should sound linear and balanced.
Front Panel Controls
1. GAIN CONTROL - Adjusts the ouput level
2. FADER CONTROL - Adjusts the volume between front and rear speakers in a 4-speaker system.
3. INPUT SELECTOR SWITCH - selects the MAIN/AUX input
4. SUBWOOFER LEVEL - Controls the subwoofer level
5. PARAMETRIC EQUALIZER CONTROLS - Controls the frequency response of the boost or cut with the 7 band
controls - 50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6KHz, 16KHz
7-BAND PARAMETRIC
BOOST/CUT
BANDWIDTH
S/N RATIO
FREQUENCY RESPONSE
MAX OUTPUT VOLTAGE
THD%
INPUT SENSITIVITY
HEADROOM
INPUT IMPEDANCE
STEREO SEPARATION
OPERATING VOLTAGE
OUTPUT IMPEDANCE
50Hz, 125Hz, 315Hz, 750Hz, 2.2KHz, 6kHz, 16kHz
18dB
Specific to each band. Hi Shelving
110dB REF 1V Input
10Hz-50KHz, +/-1dB
9.75V RMS
0.05%
Adjustable 200 mV - 3.5V RMS
20dB
20K Ohms
80dB/1KHz
11-15V Negative Ground
1KΩ
SUB LEVEL VOLUME
MAIN
AUX
FADER 50Hz 125Hz 315Hz 750Hz 2.2kHz 6kHz 16kHz
4 1 2 63

Set your source volume at 1/2 to 3/4 volume and leave it. Always use your volume as a master (main) volume
control. It has better electronics, higher S/N ratio and is more linear than any source unit volume available. If
engine noise is audible, raise the volume on the source unit and/or check the ground connection on the unit.
Installation
SUBWOOFER
FRONT
SPEAKERS
REAR
SPEAKERS
AUXHEADUNIT
BATTERY (+12v)
REMOTE
GROUND
Warranty
This products has a one year warranty from the date of purchase for defects in material or workmanship.
The warranty is void if the product has been physically damaged by improper usage or abuse. If repairs are
attempted outside of a Memphis Audio facility, the warranty is void.
This warranty is limited to the original retail purchaser and does not cover any expenses incurred in the
removal or re-installation of the product. This warranty does NOT apply to product exterior and cosmetics.
Memphis Audio disclaims any liability for incidental or consequential damages caused by product defects.
Memphis Audio liability will not exceed the purchase price of the product and the warranty period specified.
Warranty shipments to Memphis Audio are the responsibility of the purchaser. Pack the product carefully in
the original carton if possible Memphis Audio will not be responsible for damages incurred in shipment or
due to improper packaging materials used by the purchaser.
If determined to be within warranty your product will be repaired or replaced at the discretion of Memphis
Audio.
What is NOT covered under warranty
• Damage due to improper installation
• Damage caused by exposure to moisture, excessive heat, chemical cleaners and/or UV radiation
• Damage through negligence, misuse, accident or abuse. (Repeated returns for the same damage may be
abuse)
• Product damaged in accident and/or due to criminal activity
• Service performed by anyone other than Memphis Audio
• Subsequent damage to other components
• Any cost or expense related to the removal or re-installation of product
• Products with tampered, missing , altered or defaced serial numbers/labels
• Freight damage
• The cost of shipping product to Memphis Audio
• Return shipping on non-defective items
• Any product not purchased from an authorized Memphis Audio dealer
Some states do not allow the exclusion or limitation of incidental or consequential damages. The above
limitations or exclusions may not apply to you. This warranty gives you specific rights, you may have other
rights which vary from state to state.
If warranty service is required, a return authorization number is required to return the product to Memphis
Audio.