Audio Control FOUR.1i User manual

®making good stereo sound better®
22410 70th Avenue West • Mountlake Terrace, WA 98043 • Phone [phone] • Fax [phone]
®
Owner’s Enjoyment Manual
In-Dash Equalizer and Pre-Amp Line Driver
In-Dash
FOUR.1i
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Owner’s Enjoyment Manual
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FOUR.1i
Owner’s Enjoyment Manual
Table of Contents
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features and Highlights. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
A Guided Tour of the FOUR.1i. . . . . . . . . . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Placement and Mounting . . . . . . . . . . . . . . . . . . . . . 8
Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Audio Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Level Matching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Adjusting The Equalizer . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1
INTRODUCTION
Congratulations on your purchase of a truly unique
and versatile product, the AudioControl FOUR.1i(pro-
nounced Four Point One Eye) in-dash equalizer/line driver.
This product improves the sound quality and performance of
any amplified car stereo system. Our world famous, award-
winning trunk mount equalizers are adjusted and then
stashed away, while the FOUR.1iis for the car audio enthusi-
ast and the perpetual tweaker.
Ever wonder who would buy that lime green Plymouth
station wagon you saw sitting in the car lot? It was built
with somebody in mind. Music is the same way. People have
different tastes and opinions about the music they listen to.
(i.e., Barry Manilow and The Beasty Boys). The
FOUR.1iwill let you tune your system to what
you like, similar to what a recording engineer
does in the studio.
Now sit back and grab a double tall
latté and peruse this Enjoyment Manual
for the FOUR.1I in-dash equalizer.

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Owner’s Enjoyment Manual
Features of the FOUR.1i:
• Stereo graphic equalization
• Para-BASS low frequency controls
• Pre-amp gain of 20dB
• Line driver: 13 volts peak output
• Balanced differential inputs and outputs
• High-headroom PWM switching power supply
• Main and auxiliary switchable inputs
• Switchable backlighting color (amber/green)
• Master volume and fader control
• Selectable ground isolation
• Optimum voltage LED
QUICK INSTALLATION INFO
For those of you who are short on time and brimming
with confidence, or caffeine for that matter, refer to pages 10
and 11 (Figures 6, 7, & 8). As a matter of reference the FOUR.1i
is shipped in the following configuration:
Shipped Option Page #
Illumination Green Amber 7
Inputs Balanced Unbalanced 6
Outputs Unbalanced Balanced 7
Ground Isolation Isolated 200ohm or
Ground 7
Input Gain 0dB 0dB to +20dB 11
It is important to know that we recommend that you
allow your authorized AudioControl dealer to install your
FOUR.1i. When they install your FOUR.1i, we will warranty
your FOUR.1ifor an unbelievable 5 years parts and labor.
Should you opt to install the FOUR.1ion your own, the
warranty is for 1 year.
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Pre-Amp Line Driver: Talk about your ironies. To
operate with maximum dynamic range and the best signal-
to-noise ratio amplifiers require a high voltage input signal
(generally 2 to 5 volts) . On the other hand, typical source
units only put out 1 to 2 volts, (if you’re lucky!) In a system
where the source unit is located in the front of the car and
the amplifiers are located in the rear, the length of the
connecting cables will also cut the strength of the signal.
The FOUR.1iincludes a line driver that takes the weak
output voltage of a head unit and increases it up to 20dB (up
to 13 volts peak) and then delivers it downstream to the
amplifier inputs.
Auxiliary Input: The FOUR.1ihas an “AUX” switch
on the front to allow you to switch back and forth between
sources.
If you are thinking about adding a video system, or even
that extra compact disc player or DVD player, the FOUR.1i
makes hook-up a snap!
FEATURES AND HIGHLIGHTS
This section will tell you about all of the nifty features of
your FOUR.1i. Knowing these features will help you maxi-
mize the performance of your FOUR.1iin-dash equalizer as
well as making you the “Big Cheese” with your autosound
buddies.
Graphic Stereo Equalization: The FOUR.1iturns the
dashboard of your car into a mini-mixing board, just like
those in a recording studio. The FOUR.1ihas four frequency
controls set at 8000Hz, 2000Hz, 500Hz, and 125Hz. These
controls will make dramatic improvements in any system.
Para-BASS: You want bass, we’ve got bass. This spe-
cially designed parametric control lets you adapt the bass
response of any system to your listening desire. Given all of
the various types of music combined with numerous
possible bass response anomalies in every vehicle, a single
equalization control for bass just doesn’t cut it. It’s like
painting a picture with only one color . . . BORING!
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Owner’s Enjoyment Manual
Master Volume:
The FOUR.1ihas its own master volume KNOB (no
annoying up & down switches for us) to control the signal
output to the amplifiers. Raise the volume level on your
source units to their maximum and you will never need to
touch them again.
Fader Control:
For easy balancing between the front and rear speakers the
FOUR.1ihas four output channels and a fader control.
Balanced Inputs & Outputs: The FOUR.1iuses a
unique balanced differential input circuit that helps cancel
any noise that radiates into the signal path between the
source unit and your FOUR.1i. The FOUR.1ithen sends this
balanced signal downstream to another processor or ampli-
fier that has balanced inputs (blatant plug for AudioControl
products) which will keep it noise-free.
4
Figure 1: Balanced Inputs
The Most Important Feature Of All:
Reliability. That’s right, your AudioControl FOUR.1icomes
with a full 5 year parts and labor warranty when it is in-
stalled by an authorized United States AudioControl dealer.
These seasoned pros have the training and the equipment to
take care of the job quickly and not leave your dashboard
looking like swiss cheese. Keep in mind that if you or your
friends who are “good with electronics” choose to install it,
your FOUR.1istill has a 1 year parts and labor warranty.
To activate your warranty, you need to FILL OUT AND
SEND IN YOUR WARRANTY CARD! Also, save your invoice
or sales slip as proof of purchase. Not only are these neces-
sary for warranty purposes, they are also important if the
unforeseen disappearance of your FOUR.1ishould happen
while you are socializing at the local espresso and
salmon bar. Insurance companies have
very little imagination.

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4. Volume: Because the FOUR.1iis a pre-amp unit, it
serves as the main control unit in the audio system. It has a
master volume control that controls the output to all of the
amplifiers. Turn the volume control of your source unit all
the way up and deliver maximum voltage to the FOUR.1i.
Better signal-to-noise ratio and maximum SPL !
5. Fader: The fader control will allow you to fade the
signal level back and forth between front and rear amplifier
channels. This means you can have front and rear fading
even though your source unit only has two-channel outputs.
A GUIDED TOUR OF THE FOUR.1i
1. Graphic Equalization Bands: Four stereo con-
trols centered at 125Hz, 500Hz, 2KHz, and 8KHz with 12dB of
cut or boost. These controls should be used to tweak your
system, depending upon your mood.
2. Para-BASS Controls: Two simple controls allow for
killer bass tweaking. The sweep knob selects the center
frequency, between 40 and 80Hz. The gain knob provides
12dB of boost or cut, centered at the sweep frequency.
3. Auxiliary Inputs: The FOUR.1ihas an auxiliary
input to hook up a second source unit, like an outboard
video system or even a factory radio. The input is activated
by the left most switch located on the front faceplate.
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Figure 2: Front View of FOUR.1i

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Owner’s Enjoyment Manual
6. Power Connections: This nifty connector is a god-
send to anyone who has tried to wire up their gear with their
head crammed under the dash. You can wire up the power,
6
ground, remote turn-on, and illumination from the conve-
nience of the driver’s seat and then casually plug it in the back
of your FOUR.1i.
7. Input Jacks: The FOUR.1ihas two sets of inputs,
MAIN and AUX. The main inputs should get their
signals from the main source unit/head unit. The
auxiliary inputs should get their signals from a second-
ary source such as a video player, a DVD player, or a
kitchen appliance.
8. Balanced Input Selector: Located under
the cover and behind the Main and Aux input RCA
connectors are jumpers that allow you to utilize or
bypass the balanced input circuitry. Although it is
shipped in the balanced mode, which is best, it may be
necessary to change this depending upon the configura-
tion of the components you use. To change this, move
the appropriate jumper on the 3-pin header.
Figure 3: Top View of FOUR.1i
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10
11
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9. Input Gain Control: These potentiometers are
used to increase the amount of signal voltage to your power
amplifiers. With these controls you can provide up to 13
volts (peak) to your amplifier’s inputs. Check with your
amplifier manufacturer’s specs to determine exactly how
much voltage they can really handle. If you are using
AudioControl components after your FOUR.1i, they can
handle the maximum output of the FOUR.1i. More info on
this in the section on “Level Matching” - page 11.
10. Output Jacks: Next to the inputs are the outputs
which should be connected to the front and rear amplifiers,
if applicable. A pair of EQLs and a 3XS would work wonder-
fully here.
11. Balanced Output Selector: This control allows
you to send either a balanced or an unbalanced signal
downstream to the next component in line. If the next
component in line has balanced inputs (like most AudioCon-
trol products) the signal will be protected from radiated
noise (up to 55db).
12. Illumination Selection: These jumpers let you
change the backlight illumination to green or amber. Given
our devotion to protect the rainforest, we have shipped the
FOUR.1iin the green mode.
13. Ground Isolation Selector: This feature allows
you to change the power supply ground for different sys-
tems. When the FOUR.1iis shipped from the factory, the
selector is in the fully isolated position (which is generally
the best). Alas, not every manufacturer (or installer) devotes
so much time into getting their grounds right. Therefore, we
have provided other ground isolation options to help if you
have ground loop noise (alternator whine) in your system.
Experiment with different settings if you run into this type
of problem. To change the settings, turn the system off,
carefully move the black jumper from the center two pins
(Isolated) and move it to either the top two pins (Ground) or
the bottom two pins (200ohm).
If you don’t feel comfortable with everything you have
read up to this point, run, don’t walk, to your nearest autho-
rized AudioControl dealer and have them install it. Life is
too short to be tearing your hair out over your car audio
system.
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Owner’s Enjoyment Manual
INSTALLING YOUR
FOUR.1iIN-DASH EQUALIZER
Having absorbed everything in the manual up to this
point, you probably know we endorse having a professional
install your FOUR.1i. Above and beyond having all of the
appropriate technical know-how and experience, they have
lots of cool tools.
If you are still with us and are feeling confident, then
read on. . .
A. Placement and Mounting the FOUR.1i
A. In-Dash Equalizer
Placement: By definition, the FOUR.1iin-dash equal-
izer was designed to be installed in or near the dashboard of
most cars. However, if you are a building a real trick system,
like with a separate audio system in the front and rear of a
vehicle, the FOUR.1iis an ideal pre-amp control that can be
mounted in the front and/or the rear of the vehicle.
Mounting: The FOUR.1iis flexible enough to mount
almost anywhere, although somewhere on the dash or in a
center console is the most logical. You will want to be able to
access it while you are sitting in the driver’s seat of your
vehicle. The FOUR.1ican be physically mounted almost
anywhere in a vehicle, although we recommend that you
avoid hot spots like the firewall, engine compartment, or tail
pipe. The mounting location must also be safe from water
seepage or areas with bad seals (rubber gaskets, not sleek
furry mammals who eat salmon). If there are old water
stains, stay away.
We have also provided brackets to allow you to mount
the FOUR.1ichassis under the dashboard or glovebox. The
screw holes on the FOUR.1ichassis also allow for easy
installation underneath a radio or with a dash kit. It is of
utmost importance to mount the FOUR.1isecurely to avoid
any undue stress or breakage from acceleration, braking or
crashing.
8
Figure 4: FOUR.1i with mounting brackets

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B. FOUR.1iPower Wiring
• ENLIGHTENING INFO • Disconnect the negative
terminal of your car’s battery before working on any electri-
cal connections. Failure to do so could lead to a dramatic
spark in your life.
Remote Turn-On: Connect a 22 to 18 gauge wire from
the head unit’s remote turn-on to the “Remote” connector
on the FOUR.1i.
9
Power
Remote
Ground
Illumination
Power Connector
Positive(+12V) Connection: Insert an 18 gauge or
larger wire into the connector labeled “Power” on the nifty
connector of your FOUR.1i. Connect it to a good, fused,
constant source of 12 volts (we suggest the battery.)
Figure 5: Rear View of the FOUR.1i
Ground Connection: Use the same gauge wire as
you did for the positive connector and run it from the
“Ground” connector on the FOUR.1ito the negative terminal
of the battery, a ground buss, or a verified ground location.
The factory head unit ground is not recommended.
Illumination: The connector labeled “Illumina-
tion” on your FOUR.1icontrols the intensity of backlighting
of your FOUR.1i. Connecting it to a switched 12 volt source,
such as the “Remote”, allows you to light up the backlighting
of your FOUR.1i. A really cool idea is to connect the illumi-
nation wire to a factory dash light dimmer and have the
ability to dim the backlighting of the FOUR.1iwith your
dash lights.
C. FOUR.1iAudio Wiring
Planning: As you may already have guessed, there are
numerous ways to configure the FOUR.1iin your audio
system. Spend a little quality time planning out your system
and even sketching it out on paper if you can. The diagrams
on the following pages
are just a few of the
possibilities.

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Owner’s Enjoyment Manual
10
Single Source & Single Amplifier
Figure 6: FOUR.1i with one source unit
and single amplifier
Single Source & Dual Amplifiers
Figure 7: FOUR.1i with one source unit,
EQX and 2 amplifiers

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Two Sources & Two Amplifiers
Figure 8: FOUR.1i with 2 source units & 2 amplifiers
D. Level Matching
Many manufacturers claim that their source units
produce signal voltages in the area of 2 to 4 volts. However,
what they neglect to mention is that you only achieve these
incredible voltage levels when the volume is turned all the
way up. Try listening to that all of the time. By following
the level matching steps for the FOUR.1iyou will be able to
take full advantage of the maximum voltage output of your
head unit.
1. Disconnect the RCA cables leading into your amplifi-
ers, and make sure the RCA cables between your head unit
and the FOUR.1i’s main inputs are attached. Turn the volume
level knob on the FOUR.1ito maximum.
2. Play a favorite tape or compact disc that contains
consistent, dynamic music and turn the source unit’s volume
control up to its maximum level. (NOTE: Some source units
will produce distortion or “clip”, before or when their
volume controls are turned all of the way up. If this happens,
you will hear distortion even at low levels when you connect
the rest of the system. If this is the case, lower the source
unit’s volume level until you no longer hear distortion.)
With the source unit’s volume up high, the volume control
on the FOUR.1iwill be the master volume control. 11

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3. Using a small screwdriver, adjust the “Input Gain”
control on the top of the FOUR.1iuntil the yellow “Over-
load” LED starts to flicker
with the music.
4. Turn off the entire
system and attach the
output RCA’s from the
FOUR.1ito the next compo-
nent in line.
5. Turn down the gain control (counter clockwise) on
your amplifiers to the least sensitive setting. This will allow
you to drive a hotter signal into your amplifiers. For more
info on this, ask us for Tech Note 1006.
E. Equalization Adjustment
Stereo Bands: There are no strict rules to adhere to
when setting the main equalizer controls on the FOUR.1i. To
our knowledge, the audio police will not come knocking on
your door in the middle of the night. Common sense says to
use the FOUR.1ito make your audio system sound enjoyable.
At the same time don’t attempt to re-invent the laws of
physics by trying to make your speakers and amplifiers
produce things they just won’t do. 150dB of bass from 6"
woofers and 50 watts of power come to mind.
125Hz: If music in the 60Hz range is considered the
“substance”, then 125Hz can be considered the “texture”.
Although 125 Hz can be quite boomy, it is an essential part of
all music. Use the 125Hz control sparingly, the way a cook
uses a seasoning.
500Hz: The 500Hz controls the core of music. Male
voices, brass, hollow-body electric guitars and often solo
pianos are in this range. Because there is quite a bit of this
“midrange” in most pop and rock, you’ll probably find
yourself reducing this control more than you will boost it.
12
Figure 9: Input Gain Controls
• Important Tip •
If the OVERLOAD light does not come on, because of the
low output of the source unit, turn the Input Gain to maximum.
Please refer to the manufacturers specifications on input voltage
to determine whether you will need to decrease the “Input Gain”
on the FOUR.1ito avoid clipping the next component in line. If
the next component in line is an AudioControl component, there
is no need to re-adjust the “Input Gains”, because they can
handle the hot signal voltage the FOUR.1iproduces.

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No Sound 1. Check “Power” and remote turn on for
proper voltage. (Is power light on?)
2.Center the fader control.
3. Turn up “Input Gain” control.
4.Check ground connections.
5. Is the “Aux” button in the wrong
position?
Hiss 1. Turn down amp gains
2.Turn down amp gains
3.Turn down amp gains
4.Adjust source unit output
Distorting 1. Adjust equalization levels
Speakers 2.Adjust gain levels
3. Lower volume level of source unit
Whine 1. Check impedance of source grounds to
or Buzz amplifier grounds for resistance.
2.Change isolation selection of
grounding jumpers. See page 7, #13.
2kHz: Our ears are most sensitive to the octave centered
at 2 KHz. Reducing it can prevent ear fatigue while boosting
it will add immediacy, presence and “attack”.
8kHz: The 8Khz control is the sparkle in the musical
spectrum. What is sometimes perceived as ear piercing treble
is actually much lower than this in the high midrange areas.
The tips of women’s vocals, snare drums, some synthesizer,
higher brass and woodwinds are in this area.
Para-BASS: One equalization control to cover all your
various bass needs...we don’t think so. The unique Para-BASS
control in the FOUR.1 is flexible enough to satisfy the bass
requirements of audiophiles or true “bassheads”.
Sweep: Pick a frequency between 40 and 80 Hz. The
lowest of lows and the frequencies you feel more than hear
live in the 40Hz range. If you want tighter, kick in the pants
bass, you will probably head more into the 80Hz range. As
you change frequencies the Para-BASS control automatically
adjusts the bandwidth or “Q” to the optimum level.
TROUBLESHOOTING
13
Problem Suggestions

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Owner’s Enjoyment Manual
If You Like The FOUR.1i,
You’ll Love...
The Concert Series
EQLTM is our award winning
dual bandwidth, trunk
mount equalizer with speaker
level imputs!. to you that
means easy inexpensive
upgrade. Thirteen 1/2 octave
and octave spaced bands help
tame even the most wicked
acoustical environment, your car. Need a crossover and an
equalizer? The Concert
Series EQX is just the ticket.
The EpicenterTM is
More Bass Louder! Pure and
simple, It’s our patented (U.S.
Patent #4,698,842) compo-
nent, that puts the “woof”
back in woofer. You have to
hear it to believe it.
The 3XS is a 4 channel, 2
way crossover with breath-
takingly steep 24dB per
octave slopes. If perfor-
mance is important to you,
than you will appreciate the
3XS.
Do you like great sound, but you’re kind of addicted to
the features of your factory source unit? You know; steering
wheel controls, clean cosmetics, or maybe the backlighting is
just the way you like it.
Whatever the case, you are a
candidate for The Concert
Series EQL.
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And now a word from the legal department . . .
The WARRANTY
People are scared of warranties. Lots of fine print, lots of
non-cooperation, months of waiting around. . .
Well don’t be scared of this warranty. It’s designed to
make you rave about us to your friends. It’s a warranty that
looks out for you and helps you resist the temptation to have
your friend who is “good with electronics” try to repair your
AudioControl FOUR.1i. So go ahead and read through this
warranty, then enjoy your new component for a few days
before sending in the warranty card and comments.
“Limited” doesn’t mean anything ominous. The Federal
Trade Commission tells all manufacturers to use the term to
indicate certain conditions have to be met before they’ll
honor the warranty. IF you honor these conditions, we will
warrant all material and workmanship on your Concert
Series FOUR.1ifor FIVE YEARS from the date of purchase if
installed by an authorized AudioControl dealer, and will fix
or replace it, at our option, during that time. For you “do-it-
yourselfers”, we offer you the same warranty for one year.
15
Here are the conditions that make this warranty condi-
tional:
1. You have to fill out the warranty card and send it to us
within 15 days after you purchased your FOUR.1i.
2. You must keep your sales slip or receipt so you have
proof of when and where you bought your FOUR.1i. We’re
not the only company to require this, so it’s a good habit to
be in with any stereo purchase.
3. Your FOUR.1ihas to have been originally purchased
from an authorized AudioControl dealer. You do not have to
be the original owner to take advantage of the warranty, but
the date of purchase is still important so be sure to get a copy
of the sales slip from the original owner.
4. You cannot let anybody who isn’t; (a) The AudioCon-
trol Factory;
(b) an authorized service center; or (c) someone authorized in
writing by AudioControl, service your FOUR.1i. If anyone
other than (a), (b), or (c) messes with your FOUR.1i, that voids
the warranty.
5. The warranty is also void if the serial number has been
altered or removed, or if the AudioControl FOUR.1iis used
improperly. Now, that sounds like a big loophole, but here is

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Owner’s Enjoyment Manual
all we mean by it; unwarranted abuse is: (a) Physical damage
(our mobile products are not meant to be used as jack stands
for your car): (b) Improper connections. We have done the
best we can to protect the inputs. However, 120 volts into the
input jacks can fry the innards of the poor beasty: (c) Sadistic
things. This is the best mobile product we know how to
manufacture, but if you use it for the front bumper of your
Baja bug and get it full of water and dirt, things will go
wrong.
Assuming you conform to numbers 1-5, and it isn’t all
that hard to do, we get the option of deciding whether to fix
your old unit or replace it with a new one.
16
Legalese Section
This is the only warranty given by AudioControl. This
warranty gives you specific legal rights that vary from state
to state. Promises of how well your FOUR.1iwill perform are
not implied by this warranty. Other than what we have
covered in this warranty, we have no obligation, express or
implied. Also, we will not be obligated for direct or indirect
consequential damage to your system caused by hooking up
the AudioControl FOUR.1i.
Failure to send in a properly completed warranty card
negates any service claims.

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FOUR.1iSPECIFICATIONS
All specifications are measured at 14.4 VDC (standard
automotive voltage) As technology advances, AudioControl
reserves the right to continuously change our specifications,
like our weather.
Maximum input/output level . . . . . . . . . . . . . . 9.5Vrms/13V peak
Frequency response . . . . . . . . . . . . . . . . . . . . . . . . 10Hz-100kHz;±1dB
Total harmonic distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.005%
Signal to Noise ratio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -110dB
Input Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Kohms
Output Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150ohms
Input gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20dB
Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . switchable 2 source, 2-channel
Balanced inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes (switchable)
Balanced Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes (switchable)
Output ground isolation jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . Yes
Equalization Cut/Boost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±12dB
Power supply . . . . . . . . . . . . . . . High-headroom PWM switching
Power draw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mA
Recommended fuse rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Amp
Illumination Color . . . . . . . . . . . . . . . . switchable green or amber
Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1"H x 6.75"W x 5"D
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 lbs
Country of origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S.A
AudioControl, Making Good Stereo Sound Better, Performance Match, The Epicenter,
EQL, EQX, FOUR.1i, and Para-BASS are all trademarks of Electronic Engineering and
Manufacturing, Inc.
This literature was conceived, designed, and written on a bleak, windy, and dreary rain-
drenched day at our home in the Pacific Northwest Rainforest. The coffee was hot.

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