Eden World Tour 1205 Operation Manual

THE LEADER IN BASS AMPLIFICATION.

World Tour 1205

Bass Guitar Amplifier

Operation Manual

Never Compromise™

©09-20-2005 by U.S. Music Corp.

Bass Guitar Amplifier

WT1205

OPERATION MANUAL

Publishing Date 09-20-2005

FORWARD

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 all domestic and international versions of the
WT1205 integrated amplifier.

The WT1205 delivers 325 watts RMS output @ 8 Ohms, 500 watts @ 4
Ohms and 600 watts @ 2 Ohms with both channels driven. In Bridge Mode,
it delivers 1000 Watts RMS @ 8 Ohms, and 1200 watts @ 4 Ohms. Both
modes of operation have +3dB of headroom. This amplifier offers two
independent channels and features a thermostatically-controlled, active
cooling system 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 tone control system are coupled to a studio quality
compressor. The new automatic Dynamic Booster for low and high
frequencies, along with tone bypass, selectable DI and a gentle auto­compression 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 World Tour products group is the result of our quest for ultimate
bass tone and maximum reliability. Your new World Tour 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!

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 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 buffered and will handle standard passive,
high level active, and piezo input signals. Both jacks can be used
simultaneously with a single stereo instrument, or to connect two separate
instruments. If using two instruments, you can select which channel is active
via the front panel switch or the included foot controller.

Mute switch – Mutes all the outputs except the Tuner Out, allowing for
silent tuning. Lead singers and guitarists love this feature! The indicator
between the two Inputs lights up when Mute is ON.

Turbo Boost Switch – By pushing the Turbo Boost Switch IN, you engage
a +6dB gain boost. This is great for solos, or when the guitarist cranks up his
amp.

Single Channel Select – Use this switch to select Channel 1 or Channel 2
from the front panel.

Dual Channel Select – Engage this switch when using a stereo instrument.
When engaged, this disables the Single Channel Select switch.

Gain Controls – Regulate the first gain stage of the preamplifier and
controls the amount of signal available to the system.

Turbo Boost Indicators – Lights to indicate that the unit is in Turbo Boost
mode.

Clip Indicators – 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 Controls – These adjust the threshold level of the compressor.
The ratio is fixed at an optimum point for Bass reproduction. Each channel
has its own compressor so that you can set compression individually. To
disable the compressors, turn the controls fully counter-clockwise.

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Compressor Active Indicators – Light to indicate that the signal has
crossed the threshold of the compression circuit and that compression is
taking place.

Enhance Controls – 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 Sections - These controls allow you to boost or cut the tone at
the desired frequency. All controls provide 15dB of boost or cut and are
FLAT in the 12:00 position. The spacing allows the controls to interact
smoothly and musically. From left to right, the controls are:

Channel One:

Bass – Centered at approx. 30Hz.

Low Midrange Control – Centered at 550Hz. 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.

High Midrange Control – Centered at 2.2KHz. Another useful control for
tailoring the Midrange, which is where the body of the Bass Guitar sound is
found.

Treble – Centered at 11KHz.

Channel Two:

This channel is slightly different, in that it features sweepable Midrange. The
Level knob sets the amount of boost or cut; the Frequency knob adjusts the
center frequency from 250Hz to 2.5KHz. We’ll talk more about this later.

Dynamic Boost – Immediately to the right of the Treble controls for each
channel 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.) Indicator lights to the outsides of the
switches let you know when the boost circuits are engaged.

AUX In – Blends the amount of Aux Input with the main inputs.

D.I. Level Control – Sets the level of the DI sends (located on the rear

panel).

Balance Control – Allows the user to adjust the balance between two
speakers of differing sensitivities. Always set this control to the center
position (12:00) when using the amplifier in Mono Bridge mode.

Master Level Control – Adjusts overall system output and stage loudness.

D.I. Select – Allows the user to send the D.I. before (PRE position) or after

(POST position) the Tone Control section. Some users like to send a signal
unmodified by their tone settings to either a recording console or main PA
system. We’re really into the whole Freedom of Choice thing, so we thought
we’d let you decide which you prefer. The indicator is lit when in the POST
position.

NOTE: Our proprietary AutoMix technology automatically selects the
active channel and sends that to the board. If you are operating a stereo
instrument, both channels will be summed and sent to the board.

Bridge Mono Select – The WT1205 has two separate amplifiers. They can
be used in Dual Mono or Stereo Mode, or can be bridged together to create
one, high-power amp. To engage Bridge Mono operation, depress this
switch. The indicator light will come on when in this mode.

NOTE: Choose the mode of operation while the amplifier is OFF.

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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.

DC Power On Indicator – Lights to indicate that there is power throughout
the entire amplifier.

Output Limit Indicators – Light to indicate activity of the power amplifier
limiting circuits, which protect the speaker system(s) from severe distortion.
These LEDs indicate that the amplifiers have reached their maximum output
level.

REAR PANEL FEATURES

Amplifier Power Rating:

In Dual Mono or Stereo Mode, with both channels driven:

325 watts RMS @ 8 Ohms
500 watts RMS @ 4 Ohms
600 watts RMS @ 2 Ohms

In Mono Bridge Mode:

1000 Watts RMS @ 8 Ohms
1200 Watts RMS @ 4 Ohms

All modes of operation have +3dB of headroom. This means that the
maximum output is twice the RMS rating.

Note: Our new D610XLT is rated at 6 Ohms and is rated at 1050 Watts
RMS. When connecting this cabinet to the WT1205 in Bridge Mode, it will
receive approximately 1100 Watts RMS, which is a near-perfect match.

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.

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