SKU:KTN500B HD
- Compact 500-watt bass amp head with professional tone tools for serious musicians
- Next level performance with a newly developed Class D power amplifier and innovative cabinet resonance calibration
- Enhance the basic bass sound for different styles with two Amp Feel settings
- Wide range of four-band EQ including low-mid and high-mid controls with three adjustable frequency settings
- Compressor and drive controls, each with three selectable types
- Shape knob with mid-scoop, bright and wide-range options
- Bottom control to tighten the sound and eliminate sub-bass shakes
- Hi Cut button with three selectable frequencies
- Blend control to mix the dry bass sound
- Pad button to optimize input for high-output active pickups
- Built-in memory to save and recall a custom setup with one touch
- Two high-current speaker outputs with robust locking connectors
- XLR line output and headphones/recording jacks
- Edit sounds and access over 60 effects with BOSS Tone Studio for Windows/macOS
- USB connector for communication with BOSS Tone Studio and audio recording/playback with music production software
- Download and share Livesets on the BOSS Tone Exchange
- Optional Bluetooth® Audio MIDI Dual Adapter lets you edit sounds and stream audio from an iOS or Android mobile device
- Optional GA-FC and GA-FC EX foot controllers for remote control on stage
- Optional accessory speaker cabinet: Katana Cabinet 112 Bass
Sound samples
Full description
Realize your perfect bass sound. The compact Katana-500 Bass Amp gives serious bassists a next-generation audio experience backed by decades of BOSS research and development. This amp is incredibly clear, powerful, and responsive, realized with 500 watts of carefully tuned Class D power. Cabinet Resonance takes things even further by using high-tech calibration to internally fine-tune the power output section to your preferred speaker cabinet.
One-Click Cabinet Calibration. Every speaker cabinet has its own characteristic impedance curve and frequency response, and these elements affect how the amplifier feeding it behaves. With the push of a button, the Cabinet Resonance feature in the Katana-500 Bass Amplifier calibrates the amplifier’s reactive output stage to match the unique characteristics of the connected cabinet. Our proprietary process analyzes numerous elements, including the lowest frequency the cabinet can produce, high-frequency resonances, and many other factors. With this information, advanced processing dynamically enhances the output to provide superior feel and response, powerful lows, and high-definition overall sound.
Craft your core tone. The Katana-500 Bass Amp offers a deep array of controls to fine-tune your sound. Boost or shape sharpness with the four-band active EQ and choose from three low-mid and high-mid frequency options to target specific areas. Turn the Bottom knob to optimize the bottom for different scenes and toggle three Hi Cut settings to smooth the sound as needed. And with the Shape knob, you can instantly change the amp's voice with mid-scoop, bright and wide-range curves.
Add character and color. Once you've set up your basic bass voice, refine it even further with sophisticated tone-shaping tools. Amp Feel offers two selectable options to enhance the basic sound for different styles. Modern provides an extended frequency range and more dynamic sensitivity, while Vintage introduces the warmth and character of classic amps from the past. Comp and Drive types are available to control dynamics and introduce grain and aggression. And with the FX section, you can access three bass-specific effects for color and inspiration. There's also a Blend control to dial in some direct bass sound for added clarity.
Robust connectivity. The Katana-500 Bass Amplifier integrates a versatile array of connectivity options into its compact design. Two latching-style speaker outputs support high-current operation, and the XLR line output can send a simultaneous signal to a house PA from direct, pre, or post locations in the amplifier's signal path. You can further shape the line output sound from the front panel with three microphone-emulated speaker emulation modes and three custom settings. There's also a dual-function output for headphone practice or analog recording, plus USB for recording mix-ready tracks into your favorite computer music software.
Expand your boundaries. Using BOSS Tone Studio, you can view and edit all amp parameters on your computer and access over 60 BOSS effects to swap out alternative types for the Comp, Drive, and FX sections. Connecting a GA-FC or GA-FC EX foot controller provides remote control of numerous amp functions, including the front panel user memory and two additional memories. And with the optional Bluetooth® Audio MIDI Dual Adapter, you can stream music from a mobile device and wirelessly shape tones using the BTS editor app for iOS and Android.
Specifications
- Output Power
500 W (4 ohms) Peak
250W (8 ohms) Peak
- Nominal Input Level
INPUT: -10 dBu (1 M ohms)
RETURN IN: -10 dBu (100k ohms)
- Controls
MEMORY button
MUTE button
BOTTOM knot
HI CUT button
MASTER VOLUME knob
POWER switch
[AMPLIFY]
PAD button
SHAPE button
AMP FEEL Switch (VINTAGE, FLAT, MODERN)
GAIN knob
[INPUT EFX]
COMP button
DRIVE button
COMP knob
DRIVE knob
[EFFECTS]
BLEND button
FX button
TAP button
BLEND knob
FX knobs
[EQUALIZER]
LOW MID button
HIGH MID button
BASS knob
LOW MID knob
HIGH MID knob
TREBLE knob
[LINE OUT]
LINE OUT button
LINE OUT conb (CUSTOM, REC, BLEND, LIVE)
GND LIFT switch (OFF, ON)
SELECT switch (POST, PRE, DIRECT)
[CAB RESONANCE]
CALIBRATION button
- Indicators
PAD
SHAPE
MEMORY
MUTE
COMP
BLEND
FX
LOSS
LOW MID
HIGH MID
LINE OUT
CALIBRATION
HI CUT
POWER
- Connectors
INPUT jack: 1/4-inch phone type
LINE OUT jack: XLR type
SPEAKER OUT (MIN 4 ohms) connector: speakON type
PHONES/REC OUT jack: Stereo 1/4-inch phone type
EXP PEDAL jack: 1/4-inch TRS phone type
GA-FC/CTL CH1/CH2 jack jack: 1/4-inch TRS phone type
USB port: USB B type
BLUETOOTH ADAPTER SLOT: BluetoothⓇ Audio MIDI Dual Adapter
AC IN jack
- Power Consumption
500W
- Dimensions (Include rubber feet)
298 (W) x 212 (D) x 96 (H) mm
11-3/4 (W) x 8-3/8 (D) x 3-13/16 (H) inches
- Weight
2.8 kg
6 lbs 3 oz
- Accessories
Owner's Manual
Power cord
GA-FC sticker
- Options (sold separately)
Footswitch: BOSS FS-5L, BOSS FS-6, BOSS FS-7
Expression pedal: Roland EV-5, BOSS EV-30, BOSS FV-500L, BOSS FV-500H
GA FOOT CONTROLLER (GA-FC, GA-FC EX)
BluetoothⓇ Audio MIDI Dual Adapter (Model BT-DUAL)
* 0 dBu=0.775 Vrms
Couldn't load pickup availability

- Compact 500-watt bass amp head with professional tone tools for serious musicians
- Next level performance with a newly developed Class D power amplifier and innovative cabinet resonance calibration
- Enhance the basic bass sound for different styles with two Amp Feel settings
- Wide range of four-band EQ including low-mid and high-mid controls with three adjustable frequency settings
- Compressor and drive controls, each with three selectable types
- Shape knob with mid-scoop, bright and wide-range options
- Bottom control to tighten the sound and eliminate sub-bass shakes
- Hi Cut button with three selectable frequencies
- Blend control to mix the dry bass sound
- Pad button to optimize input for high-output active pickups
- Built-in memory to save and recall a custom setup with one touch
- Two high-current speaker outputs with robust locking connectors
- XLR line output and headphones/recording jacks
- Edit sounds and access over 60 effects with BOSS Tone Studio for Windows/macOS
- USB connector for communication with BOSS Tone Studio and audio recording/playback with music production software
- Download and share Livesets on the BOSS Tone Exchange
- Optional Bluetooth® Audio MIDI Dual Adapter lets you edit sounds and stream audio from an iOS or Android mobile device
- Optional GA-FC and GA-FC EX foot controllers for remote control on stage
- Optional accessory speaker cabinet: Katana Cabinet 112 Bass
Sound samples
Full description
Realize your perfect bass sound. The compact Katana-500 Bass Amp gives serious bassists a next-generation audio experience backed by decades of BOSS research and development. This amp is incredibly clear, powerful, and responsive, realized with 500 watts of carefully tuned Class D power. Cabinet Resonance takes things even further by using high-tech calibration to internally fine-tune the power output section to your preferred speaker cabinet.
One-Click Cabinet Calibration. Every speaker cabinet has its own characteristic impedance curve and frequency response, and these elements affect how the amplifier feeding it behaves. With the push of a button, the Cabinet Resonance feature in the Katana-500 Bass Amplifier calibrates the amplifier’s reactive output stage to match the unique characteristics of the connected cabinet. Our proprietary process analyzes numerous elements, including the lowest frequency the cabinet can produce, high-frequency resonances, and many other factors. With this information, advanced processing dynamically enhances the output to provide superior feel and response, powerful lows, and high-definition overall sound.
Craft your core tone. The Katana-500 Bass Amp offers a deep array of controls to fine-tune your sound. Boost or shape sharpness with the four-band active EQ and choose from three low-mid and high-mid frequency options to target specific areas. Turn the Bottom knob to optimize the bottom for different scenes and toggle three Hi Cut settings to smooth the sound as needed. And with the Shape knob, you can instantly change the amp's voice with mid-scoop, bright and wide-range curves.
Add character and color. Once you've set up your basic bass voice, refine it even further with sophisticated tone-shaping tools. Amp Feel offers two selectable options to enhance the basic sound for different styles. Modern provides an extended frequency range and more dynamic sensitivity, while Vintage introduces the warmth and character of classic amps from the past. Comp and Drive types are available to control dynamics and introduce grain and aggression. And with the FX section, you can access three bass-specific effects for color and inspiration. There's also a Blend control to dial in some direct bass sound for added clarity.
Robust connectivity. The Katana-500 Bass Amplifier integrates a versatile array of connectivity options into its compact design. Two latching-style speaker outputs support high-current operation, and the XLR line output can send a simultaneous signal to a house PA from direct, pre, or post locations in the amplifier's signal path. You can further shape the line output sound from the front panel with three microphone-emulated speaker emulation modes and three custom settings. There's also a dual-function output for headphone practice or analog recording, plus USB for recording mix-ready tracks into your favorite computer music software.
Expand your boundaries. Using BOSS Tone Studio, you can view and edit all amp parameters on your computer and access over 60 BOSS effects to swap out alternative types for the Comp, Drive, and FX sections. Connecting a GA-FC or GA-FC EX foot controller provides remote control of numerous amp functions, including the front panel user memory and two additional memories. And with the optional Bluetooth® Audio MIDI Dual Adapter, you can stream music from a mobile device and wirelessly shape tones using the BTS editor app for iOS and Android.
Specifications
- Output Power
500 W (4 ohms) Peak
250W (8 ohms) Peak
- Nominal Input Level
INPUT: -10 dBu (1 M ohms)
RETURN IN: -10 dBu (100k ohms)
- Controls
MEMORY button
MUTE button
BOTTOM knot
HI CUT button
MASTER VOLUME knob
POWER switch
[AMPLIFY]
PAD button
SHAPE button
AMP FEEL Switch (VINTAGE, FLAT, MODERN)
GAIN knob
[INPUT EFX]
COMP button
DRIVE button
COMP knob
DRIVE knob
[EFFECTS]
BLEND button
FX button
TAP button
BLEND knob
FX knobs
[EQUALIZER]
LOW MID button
HIGH MID button
BASS knob
LOW MID knob
HIGH MID knob
TREBLE knob
[LINE OUT]
LINE OUT button
LINE OUT conb (CUSTOM, REC, BLEND, LIVE)
GND LIFT switch (OFF, ON)
SELECT switch (POST, PRE, DIRECT)
[CAB RESONANCE]
CALIBRATION button
- Indicators
PAD
SHAPE
MEMORY
MUTE
COMP
BLEND
FX
LOSS
LOW MID
HIGH MID
LINE OUT
CALIBRATION
HI CUT
POWER
- Connectors
INPUT jack: 1/4-inch phone type
LINE OUT jack: XLR type
SPEAKER OUT (MIN 4 ohms) connector: speakON type
PHONES/REC OUT jack: Stereo 1/4-inch phone type
EXP PEDAL jack: 1/4-inch TRS phone type
GA-FC/CTL CH1/CH2 jack jack: 1/4-inch TRS phone type
USB port: USB B type
BLUETOOTH ADAPTER SLOT: BluetoothⓇ Audio MIDI Dual Adapter
AC IN jack
- Power Consumption
500W
- Dimensions (Include rubber feet)
298 (W) x 212 (D) x 96 (H) mm
11-3/4 (W) x 8-3/8 (D) x 3-13/16 (H) inches
- Weight
2.8 kg
6 lbs 3 oz
- Accessories
Owner's Manual
Power cord
GA-FC sticker
- Options (sold separately)
Footswitch: BOSS FS-5L, BOSS FS-6, BOSS FS-7
Expression pedal: Roland EV-5, BOSS EV-30, BOSS FV-500L, BOSS FV-500H
GA FOOT CONTROLLER (GA-FC, GA-FC EX)
BluetoothⓇ Audio MIDI Dual Adapter (Model BT-DUAL)
* 0 dBu=0.775 Vrms