Eden Navigator WP-100 User manual

THE LEADER IN BASS AMPLIFICATION.
World Tour
Bass Guitar Pre-amplifier
Covering Model
WP100 Navigator
Never Compromise™
©02-01-2006 by U.S. Music Corp.

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Bass Guitar Pre-amplifier
WP100 Navigator
OPERATION MANUAL
Publishing Date 02-01-2006
FOREWORD
Congratulations on the purchase of your new Eden World Tour Integrated
Amplifier System. All of us at Eden are totally committed to providing you
with the very best bass guitar systems in their class. Our goals are to offer
you the outstanding performance quality of a top-notch, professional bass
amplification system at a reasonable price point, and to make World Tour
amplifiers the most musical and reliable Bass amplifiers available.
This manual will cover domestic and international versions of the WP100
Navigator pre-amplifier.
The Navigator is one of the most sophisticated pre-amplifiers on the market
today. This compact, rack mountable package houses modular circuits made
with superior components and designed for years of trouble-free service. It
boasts numerous patching options to connect with virtually all outboard. In
addition, we’ve incorporated a Tube Character circuit that allows the user to
control the amount of tube warmth in their sound, and more complete
compressor controls to help dial in the exact amount of compression you
need. To be blunt, if you can’t do it with a Navigator, you probably
shouldn’t be doing it any way.
The Eden World Tour products group is the result of our quest for ultimate
bass tone and maximum reliability. Your amplifier was designed, engineered
and manufactured equivalent to aircraft vibration standards and housed in a
one-piece aluminum case with steel top to ensure maximum reliability. The
modular design allows quick repair in the field should such a need arise.
The Eden line of World Tour amplifiers is the result of our research and
development in combining high performance and compact size. Just as a
skilled craftsman needs good quality tools that won't let him down on the
job, so does a good musician. We hope you enjoy the tool we’ve created for
you. Have fun; play low!

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Please read this manual in its entirety before operating your new amplifier.
Failure to do so could result in misuse or damage. We’ve taken the time to
write it, which was a lot longer than the time it will take for you to read it.
Help us help you by taking a few moments to learn how to properly use your
new amp. You’ll be glad you did!
CAUTION!
Your ears are your most important piece of
equipment. Unfortunately, they cannot be replaced
as easily as your other gear. Please take the
following warning seriously.
This product, when used in combination with
loudspeakers and/or additional amplification may
be capable of producing sound levels that could
cause permanent hearing loss. DO NOT operate at
high volume levels or at a level that is
uncomfortable. If you experience any discomfort or
ringing in the ears or suspect hearing loss, you
should consult an audiologist.
Thank you for your purchase of an Eden bass
guitar product. This unit has been designed and
constructed to give you years of trouble-free service.
Please take the time to review this manual
and to send in your warranty registration card.

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FRONT PANEL FEATURES
Input Jack – Designed to accept a standard 1/4-inch mono phone plug. For
best results use a high quality shielded cable to connect your instrument to
the amplifier. The input is buffered and will handle standard passive, high
level active, and piezo input signals.
Mute switch – Mutes all the outputs except the Tuner Out, allowing for
silent tuning. Lead singers and guitarists love this feature! The indicator to
the left of the switch lights up when Mute is ON. This switch is duplicated
on the footswitch.
Compressor Bypass switch – Disengages the compressor circuit. The
indicator to the right of the switch lights up when the compressor is
disengaged. This switch is duplicated on the footswitch.
Gain Control – Regulates the first gain stage of the preamplifier and
controls the amount of signal available to the system.
Set Level Indicator – This light helps the user set the appropriate amount of
gain. When set properly, the indicator should light on your loudest/lowest
notes. We’ll go over this in more detail later in the manual.
Compressor Ratio and Threshold Controls –The Navigator's internal,
studio-quality compressor uses a dbx-style, state of the art compressor chip
with a fully adjustable Ratio and Threshold. Ratio sets the amount of
compression, while Threshold determines when compression will take place.
Tube Character Control – Controls the amount of tube “grit” in your
sound. This unique feature allows you to set up the exact amount of edge, or
tube-style distortion, you need for your sound. The effect produces a subtle,
soft asymmetric (single-sided) distortion. It operates like a vacuum tube in a
light overload condition, producing a warm character. The overall effect is
much more pronounced at higher input levels. With the control set at the far
left position (sine wave), there is no effect on the signal. As you turn the
control toward the right side (square wave), the effect becomes more
noticeable.
Enhance Control – Called the “Magic Knob” by some, this complex
control simultaneously boosts the very low bass, upper middle, and high
frequencies while putting a dip in the lower middle frequencies.
It is flat when set to its minimum level (fully counterclockwise).

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Enhance Bypass Switch – disengages the Enhance control for a quick
change in tone. The indicator to the left of this control will be lit when the
Enhance circuit is bypassed. This switch is duplicated on the footswitch.
Turbo Boost Switch – Engages the +6dB Turbo Boost for instant volume
change. The indicator to the right of this switch will be lit when the boost is
activated. This switch is duplicated on the footswitch.
Tone Control Section
These controls allow you to boost or cut the tone at the desired frequency.
The spacing allows the controls to interact smoothly and musically. From
left to right, the controls and switches are:
Bass – This traditional shelving tone control provides 15 dB of boost or cut
at approx. 30Hz. The control is flat in the 12:00 position.
Semi-Parametric Controls
There are three sets of semi-parametric controls. Each set has a Frequency
control (top knob) and a Level control (bottom knob). The Level controls
provide 15 dB of cut or boost. The control is FLAT in the 12:00 position.
From left to right, the Frequency controls have the following ranges:
30-300Hz 200Hz-2Khz 1.2-12Khz
Treble – This traditional shelving tone control provides 15 dB of boost or
cut at approximately 11KHz. The control is flat in the 12:00 position.
EQ Clip Light – indicates clipping in the EQ section. Clipping is a Very
Bad Thing and should be avoided at all times. We’ll tell you how to avoid
this later in the manual.
D.I. Select Switches – The D.I. on the Navigator can be set to three different
places on the signal chain: Pre-compressor and EQ, Post-compressor/Pre-
EQ, and Post-compressor and EQ. Use these switches to choose the point at
which the D.I. is sent.
D.I. Level Control – controls the gain of the D.I. In general, it is better to
send a hotter signal and pad it at the board than it is too send a weak signal.
However, this control allows you to adjust the D.I. to work with virtually all
boards.

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Mode Selector Switch – Your Navigator can be operated in Stereo or Bi-
amp mode. This switch allows you to choose which mode is used.
Limit Switch – This switch enables the internal stereo Output Limiters to be
engaged with the final Main Outputs. The Limiters are calibrated to two
standard Power Amplifier input voltage requirements: high voltage standard
(such as a Crown amplifier) @ 2.8VRMS and low voltage standard @
1.4VRMS. The selector switch for this is located inside the unit on the right
side of the top front PC board. This should be set up by a qualified service
tech to match the input specifications your particular amplifier at the time of
purchase. Your unit was shipped with the switch in the higher limit position.
This feature gives you the additional safety of having onboard limiting
available for your large power amplifier without the additional cost of an
outboard comp./limiter. With the Limiter switch in the off position, the Main
sends can reach +21 dBm.
NOTE: The limiters will also effect the Headphones and the Stereo D.I.
output.
Side Chain Level Control – This control sets the amount of side chain
effects return that is blended into the original signal.
Crossover Control – Determines the crossover point between amplifiers
when in Bi-Amp Mode. In all other modes of operation, this feature is
defeated.
Aux In Level Control – Sets the level for the stereo Auxiliary Inputs.
Balance Control – Balances power between the two amplifiers: High (or
Left) and Low (or Right). This is useful when using cabinets of different
impedance &/or efficiency.
Output Level Indicators – These give you an easy-to-read display of output
level of your Navigator. For lowest noise, you should set your output as high
as possible without overdriving, and adjust overall system volume using the
level controls on your amplifier. (You are using an Eden amp, right?)
Master Level Control – Adjusts overall system output and stage loudness.
Headphone Jack – Accepts a standard 1/4-inch stereo headphone plug.

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IMPORTANT NOTE: DO NOT use this jack for a Mono Signal Send!
It may be possible to damage the mono headphones inserted into this
jack, as well as your Navigator. USE ONLY STEREO HEADPHONES!
Don’t say you weren’t warned, because you were!
Mains On/Off Switch – This switch turns the system power ON or OFF.
The switch illuminates to indicate the presence of AC power present in the
chassis. This switch is prior to the fuse. The light in the switch may flicker
depending on local voltage conditions. This is normal and nothing to be
concerned about.
NOTE: The Mains Switch will illuminate even if the fuse is blown.
However, the DC Indicators will not illuminate if the fuse is blown.
Extra Front-Panel Lights – You may have noticed there are several extra
LEDs underneath the controls of your Navigator which are always on. These
lights qualify as a Really Neat Thing because they not only look really cool,
they also provide illumination to help you adjust controls in low-light
situations. You’re welcome.
REAR PANEL FEATURES
Ground Lift Switches – These switches lift the ground from the D.I. sends
on the back panel. They do not lift the ground from the rest of the unit. If,
when connecting your Navigator to a power amplifier, sound board or
recording console, there is a ground loop causing hum, lift the ground using
these switches to minimize noise. There are separate switches for the Main
(left and right) D.I.s and the Recording D.I. (Mono).
Main Outputs – Use these 1/4-inch outputs to connect your Navigator to a
power amplifier. If you wish to run your Navigator in mono, we suggest you
use the left output. These outputs can produce up to +21dBm without
clipping, and are low impedance, line level.
Combination Power Cord Jack and Fuse Holder – The removable power
cord is attached here. To access the fuse holder, pull the holder out of the top
of the power receptacle. Your unit was shipped with a spare fuse inserted in
the fuse carrier.

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USE ONLY THE SAME SIZE AND TYPE FOR REPLACMENT.
Using a fuse with a different rating than specified is a VERY BAD
THING and can cause damage to your amplifier. All models come with a
holder marked (FUSE) or (115/230) and are factory configured for 100/120/
230/240 only and must be adapted by a service tech for any voltage change.
Fuse Requirements:
USA @ 120 Volts /60 HZ – 1 Amp, 5 x 20 mm GMC/T/slow blow
Europe @ 240 Volts/50 Hz – 0.5 Amp, 5 x 20 mm GMC/T/slow blow
IMPORTANT NOTE: Always use slow blow or time delay type fuses.
Do not use fast blow fuses.
To convert your amplifier from US to European fusing, remove the Fuse
Holder and insert a 0.5 Amp slow blow fuse. Flip the fuse holder over and
reinsert.
IMPORTANT NOTE: In order to operate properly in parts of the
world not listed above, your amplifier may require minor modifications
in addition to a different value fuse. These modifications must be made
by a QUALIFIED technician. Contact your local distributor for further
information.
Aux. Input - This standard 1/4-inch input jack is designed to accept the
signal from an external source such as a CD or cassette player, drum
machine, synth. module, etc. The signal is summed (added in) prior to the
tone controls and Master Volume control. This jacks can also be used to
return a studio cue signal, allowing the Navigator to provide you with your
own headphone mix in the studio. The Aux signal is summed with the main
input and sent to all outputs, including the DI.
Stereo Post-EQ Effects Send/Return – These standard 1/4-inch jacks allow
you to send and receive your signal to and from external devices. This
effects loop is positioned post (behind) the tone section. This loop is at line
level; do not use instrument level effects in this loop as they tend to be
overloaded by the higher signal level which can cause distortion. To use
with mono effects, return the signal to the Left return.

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Main D.I. Outputs – These fully balanced stereo XLR outputs provide
+16dBm maximum. They can be used to send a stereo signal to a mixing
board or recording console, or to connect to a power amplifier. Please note,
however, that the signal from these outputs is not as hot as that from the
Main Outputs.
Recording Out (D.I.) – This fully balanced XLR output allows you to send
a signal to a recording or sound reinforcement mixing console. We use Pin 2
hot configuration. Adjusting the Master Volume control will not affect this
send. This output is designed to use with phantom powered systems.
However, it never hurts to turn off the phantom power at the board, if
possible.
This output can be set to send a signal from three points in the signal chain:
•Pre-compressor and pre-EQ
•Post-compressor and pre-EQ
•Post compressor and post EQ
To set the point at which the D.I. is taken, use the switches on the front
panel.
Side Chain Effects Loop – This mono effects loop operates a bit differently
than the other two loops. The other two send the entire signal to an outboard
device and accept the return. This loop, however, splits the signal. The
unaffected part of the signal goes through the EQ section while the other part
goes to your outboard gear before the EQ section and returns to the chain
after the EQ. Then, using the blend knob on the front panel, the user can
blend the two signals together.
Footswitch Jack – Connect the Footswitch here. Even with the footswitch
connected, the Front Panel Controls take precedence.
Mono Pre-EQ Effects Send/Return – These standard 1/4-inch jacks allow
you to send and receive your signal to and from external devices. This
effects loop is positioned post (behind) the compressor and before the
Enhance control and the tone section. This loop is at line level; do not use
instrument level effects in this loop as they tend to be overloaded by the
higher signal level which can cause distortion.

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Stereo Post-EQ Effects Send/Return – These standard 1/4-inch jacks allow
you to send and receive your signal to and from external devices. This
effects loop is positioned post (behind) the tone section. This loop is at line
level; do not use instrument level effects in this loop as they tend to be
overloaded by the higher signal level which can cause distortion. To use
with mono effects, return the signal to the Left return.
Tuner Out Jack – This standard 1/4-inch jack is designed to provide a pre-
gain signal for connection to a tuner. It can also be used to provide pre-tone
signal to other devices such as a direct box or console. The signal is enough
to provide adequate signal to virtually every tuner on the market.
FOOTSWITCH FEATURES
Your Navigator comes with its own footswitch, allowing you to make
changes on the fly while playing. All corresponding panel switches take
priority over the footswitch. The following functions can be controlled by
the footswitch:
•Mute to Tune
•Compressor Defeat
•Enhance Defeat
•Turbo Boost
OPERATING INSTRUCTIONS
Mechanical and Thermal Issues – During operation, your amplifier should
always be placed away from sources of moisture or heat. The supplied rack
ears can be used to install your amplifier in a conventional equipment rack
for protection during transportation.
Connections – Output connections should be made using balanced or
unbalanced cables. Unbalanced cables are fine for short runs, but for longer
runs, you should use balanced cables. All instrument-level input connections
(Effects Loops, etc.) should be made with high quality shielded cables. The
use of speaker cables for input connections will result in excess noise.

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INITIAL SET UP
Before turning your Navigator ON, you must first determine which mode of
operation you wish to use. It is critical to the safety of your unit that you
make all connections correctly, and that you set the switches to the proper
position. Failure to do so may result in damage to your preamplifier,
amplifier &/or speakers!
Connect the appropriate cables to the various outputs on the back panel.
Check to make sure the front-panel switches are set for your desired mode of
operation.
In Bi-Amp mode, use the Crossover control to determine which frequencies
will go to the speakers. Because bass frequencies require far more power to
reproduce the treble frequencies, we suggest that you start out low (or left)
on the dial. But it’s only a suggestion. We gave you a crossover control so
you could make your own decision. (You’re welcome!)
If necessary, us the Balance control to balance the volume between the low
and high speakers.
GETTING A GREAT TONE
As bassists, each of us has in our head a concept of our perfect sound. Eden
amplifiers are designed to help you easily achieve the sound you hear inside
you. However, it’s a multi-step process as explained below.
In order to ensure the ultimate in tone, it’s important to follow the procedure
outlined below. Don’t skip steps; don’t jump around. Yes, this may take a
minute or two, but the work is well worth it. Once they’ve done it a few
times, most users can do it time and again in about a minute.
IMPORTANT NOTE: Before you plug in your unit for the first time,
please do the following things. First, turn the power switch to the OFF
position. Check the back of your unit for the correct voltage notation for
your county of operation.

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Once you’ve established that your unit is set to the correct voltage, set the
Master Volume control to minimum (fully counter-clockwise). Set the tone
controls to the center position (12:00 or 0). Turn the Enhance control to the
minimum position. Set the Input Gain control to the minimum (fully
counter-clockwise). Set the Compressor to the OFF position (push the switch
IN). This will set your Navigator up flat and with the Compressor
disengaged.
Next, plug in the power cord to the AC inlet on the back of the unit. Use
only a safe grounded receptacle for proper operation at the correct voltage
for your country. Double check to make certain your Navigator is set for the
correct voltage in your country. Double check that all connections and
switches are correct for your chosen mode of operation.
Turn On – Once you’ve completed the steps above, you can plug in your
bass and turn on the unit (plug it in first, ok?) and let’s get started. We
recommend turning your system on with the Master Volume control set to
its minimum position. This will prevent any unexpected signal from being
sent to your speakers.
Setting Your Level – Remember, begin with the Input Gain, Enhance,
Compressor and Master Volume completely OFF – fully counter-clockwise.
All EQ should be set flat, that is, at 12:00 – straight up.
While playing your lowest note (or loudest), slowly turn the Input Gain up
until the Set Level light begins to blink with regularity. If you can’t go past 8
or 9 o’clock, you may engage the Gain Switch to better match the gain of
your instrument to the amplifier.
If you have disengaged the Compressor as we suggested, the Set Level light
will barely blink on your loudest notes. By the way, this is David’s favorite
way to set level, even if you intend to use compression.
Once you have properly set your Input Gain, turn the Master Volume up to a
comfortable listening level and proceed with the rest of the setup process.
Setting the Compressor - If you want to use compression, engage it now by
turning the Compressor Defeat switch OFF. As previously mentioned, the
Threshold control determines how soon compression takes place, while the
Ratio control governs how much compression will take place.

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The ratio is variable from very soft compression (fully counter-clockwise) to
hard limiting (fully clockwise). The Compressor light will blink when your
gain goes above the compression threshold. This will generally show up
more on the lower notes, or when you employ Slapping. (A properly
compressed Slap sound is very cool, indeed.)
A good general setting for overall compressor operation is to match the
Compressor LED (located between the Ratio and Threshold controls) to go
on at the same time as the Set Level indicator. This will provide the best
headroom with good peak protection. We recommend that you start with the
Threshold at about 1:00 and the Ratio at about 11:00. You may have to
adjust the Threshold slightly to get the two lights to blink together.
If you want the compression to activate sooner (at lower signal level),
increase the Threshold a little at a time. If you want more compression,
increase the Ratio until you achieve the amount of compression you desire.
SETTING YOUR EQ
The frequencies that you’ll need to boost or cut are dependent upon your
instrument, playing style, speaker cabinets, and venue. Extreme settings of
boost or cut are unlikely to be necessary or helpful. We are frequently asked
to provide suggested settings for various styles of play. We have discovered
though, that most of our endorsers tend to set their EQ generally flat, using
varying amounts of the Enhance Control to achieve their sound. In fact, a
number of our recording artists tell us that their standard recording set-up is
to have the Enhance set at approximately 9 or 10 O’clock and the tone
controls set flat.
We encourage you to experiment with different settings to obtain the sound
you desire. Visit the Manuals page our website to download a “Favorite
Settings” worksheet to record your settings.
Enhance – Once you’ve set your gain, you can move on to setting your EQ,
beginning with the Enhance control, or Magic Knob, as some call it. The
Enhance circuitry adds very low bass, upper mids and highs while scooping
out a bit of low middle. The more Enhance effect you dial in, the greater the
boost (and cut). As with all of our EQ controls, a little goes a long way.

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Slowly bring the Enhance control up while playing. If you turn it up close to
12:00 on the dial and still don’t have your sound, stop there. Return the
Enhance to OFF or leave it at no more than 12:00 and work with the EQ
section.
Using the EQ Controls – Before you begin to twiddle knobs, let’s talk
about a few things. Excessive boosting of one or more EQ frequencies may
cause an overload in the EQ section. If this happens, the EQ Clip light will
engage. This is a Very Bad Thing and needs to be corrected immediately.
If EQ clipping occurs, you can either decrease the boost or decrease the
Input Gain. Remember, too, that our EQ controls are active, and are meant to
turn both ways – not just UP! This means that you can enhance a certain
frequency spectrum either by boosting that frequency or by cutting the
adjacent frequencies. This latter method has the advantage of maximizing
potential headroom.
If possible, step well forward of your rig to get a better idea of how you will
sound in the room. You may be surprised at how different you sound once
you step away from the speakers.
NOTE: Many players rely on the Enhance Control (and perhaps a little
Midrange Massage) to get their sound. This method leaves the Bass and
Treble controls available to dial in to a particularly difficult room. Just
something to keep in mind, ok?
Setting Bass and Treble – OK, now it’s time to set the EQ, beginning with
the Bass and Treble controls. These controls cover a fairly broad frequency
spectrum and a little goes a long way. Adjust these controls up or down as
needed. We suggest playing a few notes in various areas of the neck so you
can hear what your adjustments have done across the fretboard.
Using the Semi-Parametric EQ Controls – Adjusting the Semi-Parametric
controls allows you to focus in on particular frequencies to achieve your
desired tone. We suggest you spend some time experimenting with these
controls to learn more about how they can affect your sound. Here’s an easy
way to do that:
Beginning with all controls FLAT, turn the first (left) frequency control fully
counterclockwise. Turn the corresponding Level control to approximately
9:00. Now, while playing, rotate the frequency control to the right a little at a
time. You should be able to easily hear the frequencies this first set of
controls affects.

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Now, cut the Level control to approximately 3:00 and do the same thing.
Repeat this process with the two remaining control sets. By the way, this
process is a lot easier if you have a friend do the knob twiddling while you
play.
Here are a couple of tips to help you dial in your desired tone:
For a great fretless tone, dial in a little extra at approximately 550Hz.
For extra grind for Rock and other aggressive music, add a little at 1-1.2KHz
or 2-2.2KHz – or both! Remember, though, that a little goes a long way.
Don’t over boost.
NOTE: Remember that the tone you get when playing alone may not cut
through as well as you’d like when playing with others. You may need to
adjust the tone controls to achieve the same (apparent) tone, especially in the
mids and high end.
A FEW TECHNICAL THINGS TO REMEMBER
Clipping = Bad – Keep an eye on the EQ Clip light. If it blinks, either
reduce Input Gain or cut back on one or more EQ ranges. As we said earlier,
Clipping in the preamp section is a Very Bad Thing and is to be avoided at
all times. If you find yourself running out of amplifier headroom, cut a little
in the lower frequencies, which require the most power from your amp.
You’ll know this is happening if you see the Limit light flashing. As long as
the light is just blinking, you’re fine. But, if it’s on more than it’s off, you
might want to back off a bit.
Frequency Oddities – Two areas are a frequent source of frustration for
bassists trying to achieve their sound: frequency masking and frequency
enhancement. Frequency masking occurs when other instruments
(particularly cymbals and electric guitars) obscure the important upper
harmonic content of your sound. As a result, you find that the EQ settings
that were so perfect at home lack definition in a live setting. On the other
hand, the stage settings that worked so well sound harsh and/or thin in the
absence of other instruments.

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Frequency enhancement results from cabinet placement and room acoustics.
A cabinet placed on the floor will have the lower frequencies boosted by
about 3 db. Placement against a wall adds another 3 db. A corner adds 3 db
more. Consequently you may find a surprising boominess to your sound.
Certain qualities in the room itself can also enhance the lower frequencies,
further contributing to this problem. Frequently this effect is more noticeable
in the audience than it is on stage. Compensating for it may result in a stage
sound that may seem a little thin. However the sound is actually quite full
out in front.
NOTE; Remember, you can’t equalize out major physical room anomalies.
If things sound really weird where you are, try moving you rig a few feet
and see if that helps. This may be particularly helpful on saggy stages that
bounce like a drum head. (The propellerhead term for this is
“diaphragmatic.” So says David. – LB)
YOU’RE DONE. GO PLAY.
There you have it: a quick and easy process to help you get the perfect tone
from your Eden amplifier. As previously mentioned, it make take a few
extra minutes the first few times you go through this, especially if you take
the time to experiment with all the knobs and switches, which we highly
recommend.
We are confident that the time you spend getting to know your new friend is
an important investment, one that will pay off immeasurably in Great Bass
Tone. And, after all, that’s why you bought an Eden, right?
OTHER CONSIDERATIONS
Suggested Speaker Systems – Your speaker system should be chosen to
accommodate the characteristics of your amplifier and your predominant
application. If you will only be using one cabinet per channel, a 4 Ohm
model will draw the most current from your amplifier. If you will generally
be using two cabinets, they should both be 8 Ohm models so their combined
impedance will be 4 ohms. If you are uncertain about your future needs,
always go with the 8 Ohm speaker option so that you can add another
speaker later if you need to. In general, adding more speakers will give you a
greater volume increase than adding a few more watts.

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We have designed our amplifiers to operate safely at 2 Ohms only because
everyone else is doing it and some users expect it. However, we much prefer
operating at 8 or 4 Ohms because of the markedly improved quality of tone
and dynamic response. But if you really want to, you can operate our power
amplifiers at 2 Ohms per channel without worry. In Bridge Mono Mode, the
total impedance should never be less than 4 Ohms. This translates to a 2
Ohm load for each amplifier. (You are using an Eden power amplifier with
your Navigator, right? If not, reduce your Cool Factor by 27 points.)
MAINTENANCE
Your Eden pre-amplifier has been designed to require minimal routine
maintenance. Attention to the following areas will ensure optimum
performance of your Navigator. We’re serious. Don’t blow this off, OK?
Contact Point Cleaning – One of the weakest links in most bass
amplification systems are the solderless connection points where
instruments, speaker cabinets, effects, and other devices are connected to the
amplifier. (The most vulnerable of these types of connection is the jack on
your instrument). In addition to contamination from airborne pollutants,
these points are frequently assaulted by connectors that have picked up
debris from dirty stages, cases, etc.
This contamination can result in poor contact as well as poor tone, and we
all know that bad tone is a Very Bad Thing. These points should be cleaned
regularly with a cotton swab soaked in denatured alcohol or a commercially
available de-oxidant. Frequent cleaning of the plugs on your cords is also
recommended.
Dust Removal – You should periodically inspect the ventilation openings
on the top and sides of the unit to ensure that they have not become blocked
by accumulated dust. Vacuum the openings to remove any dust buildup.
Dust bunnies are definitely not cool.
The Magic Smoke – Few people realize just how much magic goes into
creating Great Bass Tone. It isn’t something you normally need worry about.
Just have fun and leave all that to us. However – and this is very important –
if you ever release the Magic Smoke from your pre-amplifier, this is indeed
a Very Bad Thing, perhaps the worst thing you can do. If you see any
smoke (Magic or otherwise) coming out of your amplifier, immediately turn
it off and seek the services of a qualified magician…uhm, we mean…
technician. DO NOT continue to use the pre-amplifier in this condition.

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Learn More – If you’d like to learn more about your Navigator (or about
our company and its activities), we invite you to visit our website –
www.eden-electronics.com. There you’ll find articles to help you better
understand our products and the technical stuff some people find so
interesting. You’ll also find our FAQ (Frequently Asked Questions) file,
which is updated regularly.
While you’re there, check out our on-line forum. There you can meet
hundreds of other Edenites who’ll be glad to help you with any questions
you may have about our gear. Not to brag too much, but we think our forum
is a Really Neat Thing, filled with Really Neat People. We’re pretty sure
you’ll think so, too.
Service – In the event of malfunction, or questions about your unit’s
operating features that aren’t answered in this manual or on our website, you
should contact your Dealer. Once you and your dealer have determined it’s
definitely a malfunction (and not an operator error) you must call our
Customer Service Department and obtain a Return Merchandise
Authorization (RMA). We WILL NOT accept any gear sent without an
RMA, so save the time and money by calling first, ok?
IMPORTANT NOTE: International purchasers must contact their local
dealer or distributor for warranty terms, conditions and service providers in
their own countries.

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My Favorite Settings
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My Favorite Settings
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