SKU: 8542209501

Boss KTN500B HD Bass Amplifier Head

Sale price$495.00 Regular price$550.00
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Description

Boss KTN500B HD Bass Amplifier HeadExperience signature Katana sound in a compact yet powerful form factor with the Katana 500 from BOSS, a 500W bass amp head with loads of control. Sporting comprehensive 4 band EQ, onboard FX, compression, drive, cabinet emulation, and selectable preamp voicing, the Katana 500 is a veritable bass control hub. With classic BOSS effects onboard, tap tempo, and the Blend knob for dry wet balance, you can achieve studio quality signal processing

Experience signature Katana sound in a compact yet powerful form factor with the Katana 500 from BOSS, a 500W bass amp head with loads of control. Sporting comprehensive 4-band EQ, onboard FX, compression, drive, cabinet emulation, and selectable preamp voicing, the Katana 500 is a veritable bass control hub.

With classic BOSS effects onboard, tap tempo, and the Blend knob for dry/wet balance, you can achieve studio-quality signal processing internally. Two 4-ohm Neutrik speakON outputs are provided for either 4-ohm (500W) or 8-ohm (250W) operation with external cabinets. A direct XLR line output sports three cab emulations, selectable ground lift, selectable post, pre, or direct signals, and automatic cab resonance calibration. And when further tone sculpting is needed, you get a variable low-cut filter (up to 200 Hz), a fixed hi-cut filter, and a even a pad button to help tame the output power in quieter environments. The Katana 500 includes a power cord.

Refined Tone and Authoritative Power
The Katana 500 bass amp head brings you high-performance amplification fueled by decades of BOSS knowledge and expertise. Three unique preamp types are also available—each with a powerful Shape switch to fine-tune the character—so you'll always have the perfect sound for any style or genre.
  • Vintage: a classic tube voice with organic tone and natural drive
  • Flat: smooth, clear, and dynamic tone with rich harmonic character
  • Modern: quick dynamic response with extended bass range
Precision Soundcrafting Tools
With the intuitive panel controls on the Katana 500 bass amp head, you can quickly refine your tone in detail. The studio-inspired Blend section lets you mix in some dry signal, which you can preshape from the panel with three customizable settings for the optimum tonal fusion. A comprehensive four-band EQ is also on hand, complete with three selectable frequency centers in the low-mid and high-mid bands.

Versatile Performance Companion
The flexible Katana 500 Bass is your perfect partner for any live gig. Tone Setting memories are available for storing and recalling the sounds you create, including preamp type, EQ, Blend, and effect settings.


You can switch memories from the panel and go even further with optional footswitches, an expression pedal, and the GA-FC Foot Controller. There’s also a balanced XLR output with a switch to select between direct, pre, or post signals, plus two Neutrik 4-ohm speakON speaker jacks to augment your sound with an external cabinet if needed.

Recording and Practice Powerhouse
The Katana 500 bass amp head is equally suited for studio recording and home playing. The independent preamp gain, master volume, and drive controls let you find the perfect tone even at practice volumes. A stereo headphone/recording jack provides a direct output with effects and mic'd cab emulation with three Air Feel settings (plus a customizable setting), while USB lets you interface with computer production software and track with great tone, a perfect option for reamping.

Go Deeper with BOSS Tone Studio
To shape sounds with even finer control, reach deep into the heart of the Katana 500 Bass with the BOSS Tone Studio editor. Adjust preamp, EQ, and Blend settings, call up and tweak over 60 BOSS effects, and organize sounds in Live Sets for different gigs.


You can also shape the overall amp response with powerful global EQs and fine-tune system settings. And by connecting an optional BOSS Bluetooth Audio MIDI Dual Adapter to the rear panel, you can wirelessly adjust settings on the gig from your iOS or Android mobile device.

Specifications

Amplifier Type
Solid-State
Output Power
500 W Peak
Channels
1
Master Volume
Yes
Tone Section
Bass, Gain, Mid, Treble
EQ
4-Band Semi-Parametric
Effects Loop
No
Inputs
1x 1/4" Mono Instrument
2x 1/4" Footswitch
Outputs
2x speakON Mono Speaker
1x XLR Mono Line Level
1x 1/4" Stereo Headphone
Output Impedance
4/4 Ohms Mono
USB I/O
1x USB-B Female (Audio Streaming, Host Connection)
Wireless
Bluetooth
*Via Optional Adapter
Mobile App Compatible
Yes, Adapter Required (Not Included): Android & iOS
App Name: BOSS Tone Studio
Functionality: Adjust Settings, Firmware Update
Power
AC Input Power
Factory Set:
100 to 120 VAC, 50 / 60 Hz
Power Consumption
500 W
Physical
Dimensions (W x H x D)
11.7 x 8.3 x 3.8" / 29.8 x 21.2 x 9.6 cm Amplifier
Weight
6.2 lb / 2.8 kg (Amplifier)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8542209501

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Keisha
Lowell, US
★★★★★ 4
Sturdy
Color: White, Size: 15 inches, Color: White, Size: 15 inches
Love the shelves. Nice touch to my bathroom. Easy enough to install. They're not holding anything too heavy so can't speak too much on that but they do have a nice width.
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Reviewed in the United States on March 30, 2026
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Kaitlynn
Grantham, US
★★★★★ 5
Good for light stuff
Color: Black, Size: 15 inches, Color: Black, Size: 15 inches
Good product. Very light though and if it’s in dry wall won’t hold something really heavy. I don’t think it would hold 20 pounds just light. I put over my washer and dryer and put one right on top that way I can put heavy stuff on that side without it weighing down and being ripped out of the wall. I won’t be putting heavy stuff on the right side I used 4 pieces and the wall is about 60-62 inches long
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Reviewed in the United States on December 5, 2025
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Reviewer
Natrona Heights, US
★★★★★ 5
Perfect sized floating shelves
Color: Black, Size: 24 inches, Color: Black, Size: 24 inches
These are great and the perfect width. I had my contractor install them because my tile had to have a hole drilled into it. I love that it looks seemless and flat to the tile. New bathroom renovation. I am very pleased. Holds a few towels also candles and a little plant with extra space. Perfect for a minimal look or if you have a small bathroom. Color was spot on.
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Reviewed in the United States on March 30, 2026
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R. Fleming
Houston, US
★★★★★ 3
Not What I Expected
Color: White, Size: 32 inches
This set of floating shelves was a disappointment. They’re advertised as holding 20 pounds, but mine began to bend with barely 10 pounds on them. All the screws and anchors were installed tightly and correctly, yet the metal brackets still warped under minimal weight. The shelves look fine on the wall, but I’m leaving them up only because I don’t want to patch a dozen holes—not because they’re sturdy. Definitely not the quality or strength I expected.
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Reviewed in the United States on April 13, 2026
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Alicia
Waukegan, US
★★★★★ 5
Love them
Color: White, Size: 15 inches, Color: White, Size: 15 inches
I have these floating shelves all over my house. The are made nice and sturdy and they come with simple instructions. They come it various sizes and can almost fit anywhere. These particular shelves are in my makeup closet and they look so great and organized.
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Reviewed in the United States on December 24, 2025

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