Eden CXC110 User manual

CXC Combo
Bass Guitar Amplifier
Covering Models
CXC110, CC210, CXC112
CXC212, CXC1015, CXC410
And all (S) Versions
THE LEADER IN BASS AMPLIFICATION.
©07-19-2005 by U.S. Music Corp.

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Bass Guitar Combo Amplifier
CXC110, CXC210, CXC112
CXC212, CXC1015, CXC410
Including (S) Versions
OPERATION MANUAL
Publishing Date 07-19-2005
INTRODUCTION
Congratulations on the purchase of your new Eden CXC Combo 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 CXC combos
the most musical and reliable Bass amplifiers available.
This manual will cover domestic and international versions of all CXC
combos including CXC110, CXC21, CXC112, CXC212, CXC1015,
CXC410 and all (S) versions of these amplifiers .
The CXC combos are powered by the WT330 integrated amplifier, which
delivers 200 watts RMS output @ 8 Ohms, 330 watts @ 4 Ohms and 420
watts @ 2 Ohms. If you have the (S) Special Order version, it features the
WT390, which delivers 235 watts RMS output @ 8 Ohms, 390 watts @ 4
Ohms and 625 watts @ 2 Ohms. Both amplifiers have +3dB of headroom
and feature thermostatically controlled active cooling systems with built-in
thermal safeties.
You have purchased what we feel is one of the finest bass amplifiers
in the world. The new pre-amplifier section, with its familiar Eden Enhance
control and powerful new 3-way tone control system are coupled to a studio
quality compressor. The new automatic Dynamic Booster for low and high
frequencies, along with a mid shifter, tone bypass, selectable DI, selectable
distortion and a gentle auto-compression circuit, allow you to achieve a wide
array of sounds. This compact, rack mountable package houses modular
circuits made with superior components and designed for years of trouble-
free service.

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The Eden CX products group is the result of our quest for ultimate bass tone
and maximum reliability. Your new CXC Combo Amplifier features our
latest solid-state front end, using the Golden Ear chip to provide unequaled
tube emulation. This chip was originally designed for use in high-end
recording consoles, such as the Harris and Neve units. While the cost is
much higher than that of other chips, we believe the result is more than
worth the cost and think you’ll agree.
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.
We are proud that we are the only bass amplifier manufacturer to design,
engineer and manufacture its own speakers and hi-frequency devices, all in
our own facility. This not only gives us much greater quality control, we can
also make exactly what we need for any given design. We design and
engineer all of the individual loudspeakers and all of the enclosures to work
well with each other so that the synergy of the overall design is greater than
the sumof the parts.
We have used only AA void-free plywood in the construction of your
enclosure. Other manufacturers may use C or D grade, which allows for
voids and patches that can degrade over time, causing rattles, or fall apart
completely. Your cabinet has been constructed using the finest
craftsmanship. We use a special glue and use Dado and Rabbet interlocking
joins to ensure you a lifetime of use. Your enclosure features massive
internal bracing and has been computer designed and hand-tuned to perfectly
match with our hand-built speakers and high-frequency drivers to ensure
maximum transient response and best overall sound.
The Eden line of CXC 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!
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!

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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 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 complete for your records:
Date of Purchase: __________________________
Model: ___________________________________
Serial Number: _____________________________
Dealer: ___________________________________
Please take the time to review this manual
and to send in your warranty registration card.

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AMPLIFIER FRONT PANEL FEATURES
Input Jacks – Designed to accept a standard ¼ inch mono phone plug. For
best results use a high quality shielded cable to connect your instrument to
the amplifier. Both inputs are fully buffered and will handle standard
passive, high level active, and piezo input signals. Both jacks can be used
simultaneously.
Mute switch – Mutes all the outputs except the Tuner Out, allowing for
silent tuning. Lead singers and guitarists love this feature! The indicator
lights when Mute is ON.
D.I. Selector – Allows the user to send the D.I. before (PRE position) or
after (POST position) the Tone Control section.
Input Gain Switch – By pushing the Gain Switch in, you engage a +10db
gain boost. For low gain instruments use the High Gain position.
Hi Gain Indicator LED – Lights to indicate that the unit is in the high gain
position.
Warm Switch – This switch engages the positive half-wave tube-style
warmth circuit, which is part of what the Golden Ear Chip is there for. The
warmth/grit effect is increased by adding more input gain.
Warm Trim – Located behind the front panel. Use a small screwdriver to
adjust the level of the effect.
Gain Control – Regulates the first gain stage of the preamplifier and
controls the amount of signal available to the system.
Clip Indicator – Flashes to indicate clipping anywhere in the system.
Clipping is a Very Bad Thing and will degrade the quality of your sound.
Therefore, this indicator should never be lit up.
Compressor Control – This adjusts the threshold level of the compressor.
The ratio is fixed at an optimum point for Bass reproduction.
Compressor Indicator – Lights to indicate that the signal has crossed the
threshold of the compression circuit and that compression is taking place.

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Compressor Bypass – Turning the Compressor control OFF will disengage
the compressor.
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).
Tone Control Section
These three controls and two switches 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.
Tone Bypass Control – Located between the Bass and Mid tone controls. A
great tool for recording, this bypasses the tone section only and does not
effect the Dynamic Boost or the compressor.
Midrange Control – This covers the center portion of the sound envelope
and can be critical to getting your sound right. The body of the Bass Guitar
sound is in the Midrange.
Mid Shift Control – Located between the Midrange and Treble tone
controls. This switch shifts the Midrange control from low mid (550Hz),
which is good for general playing and recording, to the high mid position
(2.2KHz) for Rock and more aggressive tones.
Treble – This traditional shelving-type tone control provides 15 db of boost
or cut at approximately 11KHz. The control is flat at the 12: 00 position.
Dynamic Boost – Immediately to the right of the Treble control you will
find two switches labeled Bass and Treble. These engage the Dynamic
Boost. This feature allows the extreme lows and highs to be adjusted to the
ear’s relative loudness curve (Fletcher-Munson curve). This ensures the bass
will sound full and solid even at very low playing levels.

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We recommend you engage these switches at low volumes so that your
sound remains consistent at any volume. At higher volume levels they aren’t
needed but you may want to use them as a matter of taste. Because we
strongly support Freedom of Choice, we’ve incorporated these two switches
into our design. (You’re welcome.)
Master Level Control – Adjusts overall system output and stage loudness.
Headphone Jack – Accepts a standard ¼ inch stereo or mono headphone
plug. It can also be used as a Master Output send to slave another amplifier.
Output Limit Indicator – Lights to indicate activity of the power amplifier
limiting circuit, which protects the speaker system from severe distortion.
This LED indicates that the amplifier has reached its maximum output level.
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 switch light can be on even if
the fuse is blown. The light in the switch may flicker depending on local
voltage conditions. This is normal and nothing to be concerned about.
Speaker On/Off Switch – This switch turns off the loudspeaker output
jacks allowing the user to use the headphones only for silent practice. Room
mates and neighbors may really appreciate this feature, especially at three in
the morning.
AMPLIFIER REAR PANEL FEATURES
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. 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) and are factory configured for
100/120/ 230/240 only and must be adapted by a service tech for any voltage
change. The standard fuse for U.S. use is a 5 Amp slow blow or time delay
type. Do not use fast blow fuses.

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Amp Outs – These consist of two ¼ inch jacks and an NL-4 connector
(sometimes called a Speakon). The jacks are wired in parallel. The total
speaker load impedance should not go below 2 ohms. On NL-4 connectors,
we use +1, -1 connections.
Amplifier Power Rating:
WT330
200 watts RMS @ 8 Ohms
330 watts RMS @ 4 Ohms
420 watts RMS @ 2 Ohms
WT390
235 watts RMS @ 8 Ohms
390 watts RMS @ 4 Ohms
625 watts RMS @ 2 Ohms
Both models have +3dB of headroom. This means that the maximum output
is twice the RMS rating.
Mono Pre-Tone Effects Send/Return – These standard ¼ inch jacks allow
you to send and receive your signal to and from external devices. The 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.
Recording Out – This fully balanced XLR output allows you to send a pre-
or post-EQ 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.
D.I. Level – Controls the level being sent from the XLR balanced output
jack. We suggest setting the control at approximately 12 o’clock initially. If
the signal to the board is too hot, it’s better to engage the Input Pad on your
channel of the board than to turn it down here, if at all possible. In general,
it’s better (in terms of signal-to-noise ratio and dynamic presentation) to
send as hot a signal as possible to the board. However, you can adjust the
signal level, if necessary, so make sure your soundperson or recording
engineer is aware of this capability.

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Ground Lift Switch – This switch lifts the ground within the balanced
output system to allow you to eliminate excessive noise/ground loops when
connected to external systems.
Stereo Aux. Input - These standard ¼ inch input jacks are 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. These jacks can also be used
to return a studio cue signal, allowing the CXC combo to provide you with
your own headphone mix in the studio.
Amplifier Break Link – These are provided to break the signal chain at the
input to the amplifier. This can be used as an insert point or control point for
the final amplifier. Unlike an FX (effects) Loop, this separates the pre-amp
and power amp completely. This means you can do some Really Neat
Things, such as using the power amp to drive a monitor or two while using
the pre-amp section to drive a separate, larger power amp for your bass
speakers. Of course, you can also use these jacks as a post-EQ FX Loop.
Tuner Out Jack – This standard ¼ 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 2X
input, enough to provide adequate signal to virtually every tuner on the
market.
Cooling System – Your amplifier features a thermostatically controlled fan,
which will switch on when the internal temperature reaches 130 degrees F.
In low volume situations (into 8 Ohm loads) the fan may not come on at all.
The cooling system also features a high temperature thermal safety system,
which will activate an AGC (Automatic Gain Control) circuit if the
operating temperature goes above 190 degrees F. This circuit will
automatically turn down the output of the system in the event of overheating.
It will automatically reset itself to full power as soon as the unit cools down
to a safe operating temperature.
NOTE: the D.I. will continue to operate normally even when the amplifier is
in thermal safety mode. Only the stage sound will be lost.

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IMPORTANT NOTE: Excessive heat is a Very Bad Thing and can
result in severe damage to your amplifier. DO NOT bypass or
disconnect any part of your thermal safety system. Doing so will
immediately void your warranty!
ABOUT THE SPEAKERS
As previously mentioned, Eden is the only bass amplifier manufacturer to
design, engineer and build its own drivers. Designing and building our own
speakers and high-frequency drivers allows us an opportunity to create far
greater synergy between our drivers and cabinets than any other
manufacturer can achieve. We can create several speaker and/or cabinet
prototypes and then test them together to find the best possible combination.
No other manufacturer has this capability, which is why no other
manufacturer can equal Eden’s sound and reliability.
Eden CX loudspeakers feature edge-wound voice coils and our true coaxial
speaker design. In cabinets with more than one speaker, only the top speaker
is coaxial.
We manufacture a broad array of enclosures to ensure the every bassist on
the planet can find the perfect cabinets to match his or her playing style and
personal tonal requirements. Our enclosures are grouped into the product
lines outlined below. Each product group has its own tonal characteristics.
For complete specifications on your particular cabinet, refer to Appendix A
at the end of this manual.
OPERATING INSTRUCTIONS
Mechanical and Thermal Issues – During operation, your amplifier should
always be placed away from sources of moisture or heat. Care should be
taken not to obstruct the ventilation holes on the bottomand sides of the
unit. In the event of thermal shutdown, you should eliminate the cause of the
thermal problem (poor ventilation, speaker loads lower than 2 ohms)
immediately. The supplied rack ears can be used to install your amplifier in
a conventional equipment rack for protection during transportation.
Electrical Connection – The CXC combo requires at least 10 Amps of
correctly wired alternating current for proper operation. Providing less than
10 Amps of power may result in poor amplifier performance and bad tone,
so it’s probably not a good idea to plug all of your band’s gear into a single
wall outlet.