VT-300B
Valve Tech All-Tube
Bass Guitar Amplifier
Operation Manual
THE LEADER IN BASS AMPLIFICATION.
©06-20-2005 by U.S. Music Corp.
FOREWORD
Congratulations on the purchase of your new Eden VT-300B all-tube
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 the most musical and reliable Bass amplifiers available. This manual
will cover all domestic and international versions of the VT-300B.
The VT-300B was designed for those who love the great vintage tone and
gentle acoustic color of the old tube amplifiers. This is a hand-crafted
amplifier built with modern construction techniques and reliable printed
circuits by people who care about sound and quality.
You have purchased what we feel is one of the finest bass amplifiers
in the world. This rack mountable package houses modular circuits made
with superior components and designed for years of trouble-free service.
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 PCB design allows quick repair
in the field should such a need arise. 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. 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!
Please complete for your records:
Date of Purchase: __________________________
Model: ___________________________________
Serial Number: _____________________________
Dealer: ___________________________________
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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, 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 _” mono phone plug. The
Passive jack is for use with low output basses and passive basses. The active
jack is for higher output basses with active electronics.
Overdrive Switch – This switch shifts the amplifier into an ultra-high gain
mode, suitable for a wide range of sound textures – from clean to fat and all
the way to saturated – with exact control throughout the entire range. This
works in conjunction with the Input Gain control. The higher the Input Gain
control is set, the more distortion can be generated. This function is also on
the foot switch.
Gain Control – This sets the channel gain for the system and lets you match
the output level of your instrument to the amplifier. In the Overdrive mode
the Gain Control setting determines the amount of overdrive available.
Multi Q Equalizer – The Multi Q Equalizer circuit uses a four band
parametric E.Q. It has preset centers, and fixed Qs or bandwidths that vary
with center frequency. This is a very user-friendly set up. You can fine tune
your sound very quickly using this simple system. The center frequency
spacing follows the natural content of the music and fits with the instrument
very well.
Master Tone Controls – The Master Bass and Treble controls are provided
for very fast E.Q. of the system. They also combine with the Multi Q for
even more tone shading. These are Hi-Fi-type shelving filters and effect a
broad range of tone.
Master Level Control – This controls the final drive to the amplifier. Use
this to control your stage level. About mid point on the control should be
normal for most playing situations.
Compressor Active light – This indicates the activity of the compressor.
When the LED lights up the compressor is functioning.
Standby – This switch sets the amplifier in the standby mode. The filaments
stay powered up but the hi voltage to the output tubes is removed so that
they can not operate. This extends the life of the tube and allows for less
stress during start up and power down.
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