Boss KTN500B-HD Katana Bass Amplifier Head
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The new benchmark for professional bass amps
The Boss Katana-500 Bass head raises the bar for professional bass amplifiers to a new level thanks to the latest Boss technology . The combination of revised preamp circuit and newly developed 500 watt Class D amplifier underscores your playing and technique with extremely expressive sounds. In addition, the innovative Cab Resonance function enables the amplifier model output signal to be quickly adjusted to the following loudspeaker cabinet. Shape your individual sound with a variety of sound tools and benefit from the extensive connection options.
This compact bass head offers ambitious bassists the next generation of sound . Based on decades of Boss development experience and powered by a 500 watt Class D power amplifier, the amplifier model produces an incredibly clear, powerful and dynamic sound. The Cab Resonance function goes one step further. With the high-tech calibration, you can precisely tune the amplifier's power output to your preferred speaker cabinet.
Cabinet calibration at the touch of a button
Each loudspeaker cabinet has its own characteristic impedance curve and an individual frequency response. These elements influence the behavior of the connected amplifier. The Cab Resonance function of the Katana-500 Bass head calibrates the reactive output stage of the amplifier at the push of a button and adapts it to the specific characteristics of the connected loudspeaker cabinet. To do this, the Katana-500 Bass head uses a unique process in which numerous elements are analyzed, including the lowest frequency that the enclosure can produce, resonances in the high frequency range and many other factors. The output is dynamically adjusted based on this information. The result is outstanding responsiveness, powerful bass and a defined sound at all times.
Shape your basic sound
The Katana-500 Bass head offers a variety of options for refining your own sound . Edit frequencies with the active 4-band EQ and choose from three low-mid and high-mid frequency bands to control specific frequency ranges. The bottom controls can be used to adapt the bass range to different stages. The high-cut toggle switches offers three different settings to soften sharp sound peaks in the highs. You can also change the sound character of your amplifier at the touch of a button with the shape button. There are three frequency curves to choose from: mid-range, bright and wideband.
More color / finish and character
Once you've found your basic bass sound, you can refine it even further with additional sound tools. Amp Feel offers two selectable options to adapt the basic sound to different styles of music. "Modern" extends the frequency response and dynamic response, while "Vintage" recreates the warm, characteristic sound of the old classic amplifiers. compressor and Drive types are also available to control the dynamics and give the sound more dirt and aggressiveness. In the FX section you'll find three bass effects that give your sound more color / finish and invite you to experiment. Finally, there's a Blend controls that you can use to mix in the direct signal and give your sound more clarity.
Various connection options
Despite its compact design, the Boss Katana-500 Bass head offers a wide range of connection options. The two lockable speaker outputs are specially designed to edition high voltages, while the XLR line output allows you to play a PA signal in parallel, which can be tapped at various positions in the signal path (direct, pre, post) of the amplifier. You can also shape the signal at the line output on the front using three presets with emulated speaker microphones and three custom settings. There is also a multifunctional output for practicing with headphones or for analog recordings, as well as a USB output for recording tracks in your favorite music software on the computer.
Expand your possibilities in the Boss Tone Studio
In the Boss Tone Studio you can see all the amplifier parameters and adjust them on your computer. You also have access to 60 Boss effects that you can assign to the Comp, Drive and FX sections of the amplifier. By connection a GA-FC or GA-FC EX foot controller, you can remotely control numerous amplifier functions. For example, you can access the user memory on the front panel and two additional presets hands-free. In addition, you can use the optional bluetooth® Audio midi Dual adapter to stream music from a mobile device and edit sounds wirelessly using the BTS Editor app (iOS/Android).

- Technology: Class D
- Power at 4 ohms: 500 W
- Power at 8 ohms: 500 W
- Power Range: 301 - 500 W
- Channels: 1
- EQ: 4 band EQ
- Connections: Speakon
- Impedance: 4/8 ohms
- Enclosure: Metal
- Switch Line Out Pre/Post EQ: Switchable pre / post
- Mute switch: yes
- Headphone Jack: yes
- USB-Port: yes
- footswitch: optional, not included
- Special Features: Sound editing and access to over 60 effects in the BOSS Tone Studio, shape switch, integrated memory for creating and quickly recalling your own sound setups
Die Boss Katana-Serie ist eine allseits beliebte Serie von Modelingverstärkern für E-Gitarre und passendem Zubehör. Damit auch Bassist*innen auf ihre Kosten kommen, bringt Boss nun die Katana Bass-Serie auf den Markt. Diese Serie umfasst zum Beispiel das Topteil Katana-500 Bass und die dazu passende 1x 12"-Lautsprecherbox sowie einige Combo-Modelle.
Boss is part of the Roland Corporation and is a globally recognized manufacturer of music accessories and effects devices.
Founded in 1973, the company has earned an excellent reputation, particularly with its stompboxes. Since then, many musicians have relied on Boss 's colorful floor effects and are thrilled by the robustness, innovative technology and possibilities. These devices are used by musicians worldwide in a wide variety of genres, whether rock, pop or electronic music, these devices have already convinced countless fans.
Particularly noteworthy are the GT series effects devices, a range of versatile multi-effects devices for guitarists. The large selection of effects, amplifier models and custom presets combined with the simple and intuitive operation offer the perfect playground for musicians who want to let off steam creatively.
The Katana series offers the solution for all guitarists and bassists who are looking for a high-quality amplifier model with outstanding sound . The versatile and easy-to-use amplifier model have made Boss the second largest manufacturer of electric guitar amplifiers. The Katana amplifier model have a large selection of amplifier models and integrated effects, offering a variety of options for finding your own sound and shaping it as you wish.
The Boss brand has established itself as one of the most trusted brands for musicians for many years and is constantly developing itself and its products.