FRONT PANEL

INPUT – The Streamliner™ 900 is equipped with a ¼” unbalanced instrument input directly feeding a conventional tube voltage amplifier stage. The input sensitivity range is from 15 mV to 1.6 volts with an input impedance of ~1M ohms.

INPUT SIGNAL MUTE SWITCH – With this Mute switch, you can place the amplifier (and the Direct Output) in mute mode 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. A red indicator LED above the switch indicates when the Mute function is active.

GAIN SWITCH – This switch sets the gain sensitivity of the preamp gain stages. With the switch set to the IN position and the Amber indicator LED illuminated, the gain stages are set to a higher sensitivity, driving the preamp gain stages harder, producing more harmonic content and overdrive. The degree of overdrive will depend upon the output level of your bass guitar pick-ups and preamp as well as your playing style. This switch should be used in conjunction with the Gain control for setting the overall gain structure of the preamp. This switch can also be used as an Active/Passive switch. The lower gain position is more suitable for high output level active basses and a cleaner tone.

GAIN CONTROL – This control sets the input gain of the 12AX7 TUBE preamp. The volume of the signal is then controlled by the Tube Preamp Volume control and also the Master Volume control. Note that overdriving the input tube gain stage may be a desirable tonal characteristic of your playing style. This control, in conjunction with the Gain switch, Preamp and Master Volume controls, allows you to set the amount of tube overdrive or clean tone your amp produces.

PREAMP VOLUME CONTROL – This control sets the volume (and make-up gain) of the preamp after the Input and EQ stages but before the Effects Send jack. Use this control in conjunction with the Gain and Master Volume controls to achieve the necessary gain structure for your playing and music style.

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 Streamliner™ to 12 o’clock and the Gain switch “out”. It may be best to start with the Master Volume at 9 o’clock.

3)For a clean tone, your Tube Gain and Preamp Volume settings may be set to similar positions. For a clean tone using a hot Active bass your Tube 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 tube tones with Active or Passive basses your Tube Gain setting will be set higher and the Preamp Volume set lower. If you are looking for an even more overdriven sound, engage the Gain switch for even more preamp gain. 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 EQ section and make the adjustments for your desired tone. Because this is a semi-active EQ network, any larger settings of cut or boost will affect the gain level of the preamp which will allow for even more variability in overdriven tones.

6)After setting your EQ it may be necessary to go back and adjust your gain and volume levels level up or down accordingly.

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Genz-Benz 900 owner manual Front Panel
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900 specifications

The Genz-Benz 900 is a distinguished bass amplifier that has made a significant mark in the music industry, particularly among professional bassists and venues requiring top-notch audio performance. Renowned for its powerful output and innovative technologies, the Genz-Benz 900 has become a preferred choice for many musicians seeking reliability and exceptional sound quality.

One of the primary features of the Genz-Benz 900 is its robust 900-watt power output, which allows it to deliver an impressive dynamic range. This power enables the amp to handle everything from subtle nuances to heavy-hitting bass lines without losing clarity or warmth. The amplifier incorporates advanced Class D technology, which not only ensures high efficiency but also keeps the unit lightweight and portable, making it ideal for gigging musicians.

The Genz-Benz 900 is equipped with an extensive equalization section, featuring a three-band EQ with a sweepable midrange control. This range of controls allows users to shape their tone to perfection, adapting to various music genres and performance settings. The onboard digital signal processing includes multiple presets and effects, providing versatility to create unique sounds that stand out in any mix.

Additionally, the amplifier features a built-in compressor, which helps to even out the dynamics of a player's performance. This compression not only enhances sustain but also contributes to a more polished sound, making it easier for bassists to achieve their desired tone regardless of playing style.

Connectivity is another strongpoint of the Genz-Benz 900. The amp offers multiple input options, including a dedicated XLR input for direct recording or sound reinforcement use, as well as standard 1/4-inch inputs. The output section also includes various options for interfacing with cabinets or sound systems, including a speakON output, allowing users to connect their rig seamlessly to a variety of setups.

Durability is a key characteristic of the Genz-Benz 900; it is designed to withstand the rigors of the road while maintaining consistent performance. The sleek, rugged chassis and high-quality components ensure reliability during even the most demanding gigs.

In summary, the Genz-Benz 900 is a powerful and versatile bass amplifier, boasting advanced technologies and robust features that cater to the needs of professional musicians. Its blend of performance, portability, and tonal flexibility makes it a standout choice in the world of bass amplification. Whether on stage or in the studio, the Genz-Benz 900 delivers superb audio quality that elevates any performance.
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