Diamond Bass Comp User Manual
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Bass Comp
Optical Compressor pedal
User Manual
v1.00 • June 22, 2008
Bass Comp user manual v1.00! 1
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INTRODUCTION
Thank you for purchasing the Diamond Bass Comp pedal. Although bass players have
been purchasing and using our other pedals for some time, this is our first product designed specifically with you in mind. Offering high quality optical compression and a
simple but effective ‘Tilt’ EQ control with selectable center frequency, the Bass Comp
provides an extended frequency response and high headroom to suit a wide variety of
passive or active 4/5/6 string basses.
We hope you’ll enjoy using this pedal as much as we have enjoyed designing it.
Remember to protect your hearing and wear appropriate hearing protection when playing loud…
DESIGN BACKGROUND
The original Diamond Compressor was released in February, 2005 and quickly became a
hit with guitar players. Soon bass players were adopting the Compressor for its smooth
sound and ease of use. However feedback from bassists soon revealed that the low frequency response of the original design wasn’t ideal, especially for 5 and 6 string players.
In addition, basses with particularly high output active pickups were capable of overloading the input of the original design. After developing a modification of the design for bassists, it was clear that a dedicated bass version was inevitable. Many of the features of the
Diamond Bass Comp are based on feedback from players just like you... thank you all!
FEATURES
Vactrol opto-isolator variable resistance path as used in high-end studio compressors for
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smooth attack and decay characteristics while preserving initial signal transients
Post compressor ‘Tilt’ EQ provides a very musical tailoring of frequency response - from a
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massively fat low end, to a bright solo tone with flat frequency response at the center detent
position.
Selectable 250Hz or 900Hz EQ tilt point
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Optimized gain staging and use of ultra low noise transistors and opamps in the signal path for
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lowest possible noise and extended signal headroom
Premium audio components, including Rubycon electrolytic capacitors, 2% polypropylene
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capacitors and 1% metal film resistors.
Bi-color LED provides visual indication of depth of compression
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True Bypass operation
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Bass Comp user manual v1.00! 2
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