FRONT PANEL

DIRECT OUTPUT – An XLR balanced direct output is provided for connection to a PA system or directly into a recording studio console. The Direct Out signal is mic level and pre eq. This output is fully protected against 48 volt phantom power and may be used for driving microphone lines of up to 300 feet without problems.

LIFT / GROUND SWITCH – connects or lifts the Direct Out pin 1 ground to eliminate hum due to ground loops between the bass amp and the mixing console.

PREAMP TUNER OUTPUT – The CONTOUR™500 is equipped with a fully isolated Tuner Output. This jack is located after the front end scaling preamplifier and is pre-eq. This output may also be used to drive a separate direct box or high- impedance recording device. The Tuner Output remains active when the amplifier is muted, allowing silent tuning on stage.

PREAMP INSTRUMENT INPUT – The CONTOUR™500 is equipped with a standard ¼” unbalanced input. The input sensitivity range is from 200 mV to 1.6 volts. The input impedance is >700K ohms. The input stage contains a precision high order active high pass filter (more effective and less intrusive than the more common 6 dB filters) and an “RFI” filter (radio frequency interference) to eliminate unwanted noise. The input gain stage consists of a feedback type variable gain circuit that provides wide range, continuously variable gain with minimal noise. The preamp contains a FET input amp circuit based on our highly regarded GBE and Shuttle® series touring amplifiers.

PREAMP MUTE SWITCH – With this mute switch, you can place the amplifier (and Direct Output) in standby mode between sets without having to change any of your amp settings. This feature can also be used for silent tuning since the Tuner Out stays active when the mute is engaged.

PREAMP GAIN – This control sets the input sensitivity gain of the preamp to the output of your bass. The volume of the signal is then controlled by the Preamp Volume control and also the Master Volume control. Note that overdriving the input gain stage may be a desirable tonal characteristic of your playing style. This control, in conjunction with the Preamp Volume and Master Volume controls, allows you to set the amount of input stage overdrive or clean tone your amp produces. Dramatic changes in overdriven tone can be achieved with this control in the 3 o’clock to 5 o’clock positions.

It is recommended when using heavily distorted tones that you reduce the high frequency settings on the amp our cut the tweeter level control on the cabinet.

“O/L” LED – This “Over-load” LED senses the operating status of the preamp and EQ stages. When this LED flashes, overdriving of the EQ stage is occurring. Adjusting the Preamp Gain, Preamp Volume and EQ controls will affect the over- load condition.

SETTING YOUR INPUT SIGNAL – Use the following guidelines to set your amplifier input stage for the type of bass used and your personal playing style. These guidelines are just a suggested starting point.

1)Set your instruments controls (volume and tone) where you normally prefer to run them.

2)Now set all controls on the CONTOUR™500 to 12 o’clock. It may be best to start with the Master Volume at 9 o’clock and the Contour control in the flat position.

3)For a clean tone and using a Passive bass your Gain and Preamp Volume settings may be set to similar positions. For a clean tone using an Active bass your Gain setting should be set more towards the 9 o’clock position and the Preamp Volume at noon to 2 o’clock positions.

4)For overdriven tones with Active or Passive basses your Gain setting will be set higher and the Preamp Volume set

lower. If driving the Gain Control towards maximum then the Preamp Volume should be set below the 10 o’clock position. Set your Master Volume for your desired overall volume. We suggest experimenting with different settings for best results.

5)Now, turn your attention to the Contour control and EQ section, making the adjustments for your desired tone. Because this is an active EQ network, any larger settings of cut or boost will affect the level of the preamp and the O/L light.

6)After setting your EQ it may be necessary to go back and adjust your preamp volume accordingly.



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Genz-Benz 500 owner manual Front Panel
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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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