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TECHNICAL MANUAL
DESIGN PHILOSOPHY
With many years of experience designing and manufacturing both bass guitar speaker cabinets and amplifiers, it
became obvious that there is a large market for a bass amplifier line that reproduces the natural tone of the
instrument itself, while allowing for personalization of tonal texture.
As with our speakers, Genz Benz amplifiers are designed to maximize your instrument's natural tone and feel
without imparting additional unwanted coloration or reducing impact and playability. This results in an amplifier that
will always be true to your instrument's basic natural qualities and your personal tonal signature.
The circuit design, features, and physical construction have been carefully developed to give you, the experienced
player, the best performance in bass guitar amplification. Featuring sturdy jacks and controls, premium 12AX7 TUBE
and solid state FET front end pre-amps, tuner output, mute switch, active/passive switch, foot switchable channels
and shaping filters, dual 5 band active EQ, balanced direct output, and an industrial duty bipolar power amplifier with
toroidal power transformer. The Genz Benz GBE 1200 bass amplifier gives you the tools and versatility necessary to
sound your very best on stage.
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Summary of Contents for Genz Benz GBE 1200
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Page 1: Design Philosophy
5 band active EQ, balanced direct output, and an industrial duty bipolar power amplifier with toroidal power transformer. The Genz Benz GBE 1200 bass amplifier gives you the tools and versatility necessary to sound your very best on stage. -
Page 2: Technical Information
The power section of the GBE 1200 amplifier is rated to deliver full power into a reactive load with a 45 degree (leading or lagging) power factor phase angle. This is one important reason why all Genz Benz amplifiers sound so big! FEATURES The following feature set is included on the GBE 1200 bass amplifier. - Page 3 pickups. With the switch in the active position, the preamp presents a lower gain (approx –10db) which is tailored to active pickups. A bass with active pickups is essentially one that offers extreme flexibility in it’s onboard tone control and utilizes a battery in order to power the active electronics of the bass preamp to increase the signal of the lower impedance pickup.
- Page 4 and a smooth, musical sounding response. A separate 5 band equalizer is provided for each the TUBE and the FET channels. This fully active EQ has a wide range, so generally, a little EQ goes a long way. Low Frequency - 80 Hz and below High-Mid Frequency –...
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Page 5: Back Panel
Foot Switch — The GBE 1200 is fitted with a 6 pin DIN jacks for the 5 button footswitch (included). In order for the footswitch to function correctly, the amplifier’s front panel switches for these functions must be in the “out” position. This footswitch is unique to Genz Benz due to the complex nature of it’s functions and must be factory supplied. -
Page 6: Specifications
Output Jacks — The GBE 1200 features 2 Neutrik Speakon™ NL-4 connectors. Minimum recommended total load impedance is 2 ohms with the POWER switch in the 2 ohm position. The “Speakon” is wired using pins 1+ and FLEX 1-. Pins 2+ and 2- are not connected. Traditional ¼” speaker jacks are not provided due to the high output power of this unit! Specifications Rated Power: 550W/8ohms;... -
Page 7: Declaration Of Conformity
•In addition, by use of this device, the user agrees to hold Genz Benz and its designers, sales agents and all other affiliates and related parties harmless in the event of any accident, injury, damage or loss resulting from such use.
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