A ground lift switch is provided which opens pin 1 (shield) on the direct output to prevent ground loops. Use the position that results in a minimum of noise.

The output level is nominal line level (typ. between -10 and -30 dB), pin 2 hot. This output is fully protected from the effects of phantom power provided by the mixing console and does not require phantom power to operate.

Output Jacks -

The 250 series amplifiers feature standard 1/4” speaker jacks, one for the internal speaker (combo models) and one for an external speaker cabinet. Minimum recommended load impedance is 4 ohms, though loads as low as 2 ohms may be used provided adequate ventilation for the heatsink area is provided. This may require an external fan in some climates. The 500 series amplifiers feature the same two 1/4” jacks plus a Neutrik “Speakon” NL-4 connector. The “Speakon” is wired using pins 1+ and 1-, pins 2+ and 2- are not connected.

Speakers Offered -

The 250 series amplifiers (combo versions) are currently offered as a 2x10” + horn, 1 x 12” + horn and 1 x 15” + horn in an equivalent “XB Series” tuned cabinet. Power handling capacity of the drivers is carefully matched to the amplifiers to insure a long, trouble free life.

General Information -

Power is supplied to the amplifier through an IEC type detachable cord set with a mains connector, fuse holder and internationally rated 115/230 Volts - 50/50 Hz toroidal power transformer. For our international touring players, an external mains line voltage switch is provided, with a fuse size chart printed on the rear of the unit denoting the power supply configuration and fuse size that the unit has been rated for. International IEC type cordsets are available for a variety of international power supply sockets.

Common sense (as well as the law) dictates that you do not operate the unit where it will be exposed to moisture or rain, excessive ambient heat (over 110 degrees F / 40 degrees C) or without a properly grounded A.C. power source. Never remove the ground pin from the A.C. power connector.

Ventilation is required to keep this amplifier from overheating. Do not block air flow over heatsinks at the rear of the unit.

GENZ BENZ - Model 250/500 Bass Amplifier

(Page 7, Rev: 1/14/2006)

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Genz-Benz Output Jacks, Speakers Offered, General Information, Genz Benz Model 250/500 Bass Amplifier 7, Rev 1/14/2006
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250, 500 specifications

The Genz-Benz 500 is a powerful and highly regarded bass amplifier that has made a significant impact on the music world, especially among bass players seeking reliability and flexibility in their sound. Known for its exceptional tonal quality and performance, the Genz-Benz 500 is a versatile amplifier that caters to a wide range of musical genres and playing styles.

One of the standout features of the Genz-Benz 500 is its innovative design, which includes a lightweight and compact chassis that makes it easy to transport and set up. Weighing in at just over 6 pounds, this amplifier is an ideal choice for gigging musicians who need an amp that won’t weigh them down on long nights of traveling. Despite its lightweight construction, the Genz-Benz 500 is built to be robust and durable, ensuring it can withstand the rigors of regular use.

At the heart of the Genz-Benz 500 is its impressive power output, delivering up to 500 watts of solid-state power. This high wattage allows the amp to produce deep, powerful bass tones while maintaining clarity and definition, even at higher volumes. The amp features a variety of tonal shaping capabilities, including a 3-band EQ with a sweepable midrange frequency, allowing players to sculpt their sound to meet specific musical demands.

The Genz-Benz 500 is also equipped with a range of advanced technologies that enhance its usability and performance. One such feature is its onboard digital signal processing (DSP), which includes built-in effects and various presets that allow users to further refine their sound. The amp also boasts a direct output for easy integration with recording equipment and sound systems, making it an excellent choice for both live performance and studio recording.

Additional characteristics of the Genz-Benz 500 include a fan cooling system that ensures optimal performance without overheating, as well as a rugged, roadworthy construction that promises longevity. The amplifier also has an intuitive control layout that makes it user-friendly, letting players focus more on their playing and less on technical adjustments.

In summary, the Genz-Benz 500 is an exceptional amplifier that combines power, portability, and versatility. With its advanced features, robust construction, and superior sound quality, it remains a top choice for bass players looking to elevate their performance in various musical settings. Whether on stage or in the studio, this amp delivers the reliability and tonality that every bassist craves.
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