Why Shop With Us?
Free Shipping
Free Standard Ground shipping (48 contiguous states, some overweight and Used/Vintage items excluded).
Orders placed before 3 p.m. ET usually ship the same business day.
Learn More2-Year Free Warranty on Guitars
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
Contact Us for DetailsWe're Here for You
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.
Contact UsContact Us
Call Now
800-449-9128
Hablamos Español
866.226.2919
Let's Chat
Live Chat
Hours:
MON - FRI 6 AM – 7 PM PT
SAT 6 AM – 6 PM PT
SUN 8 AM – 5 PM PT
Holiday Hours:
Thanksgiving: Closed
Christmas Eve Hours: 6 AM PT – 3 PM PT
Christmas Day: Closed
New Year’s Eve: 6 AM PT – 4 PM PT
New Year’s Day: Closed
800-449-9128
{
"sourceCodeId" : "61001562",
"sourceName" : "DIRECTSOURCECODE2",
"sourceSegment" : "direct",
"profileZipcode" : "",
"profileStoreId" : "",
"profileStoreName" : "",
"profileID" : "11239249632",
"isInternational": "false",
"isWarrantyShippable": "true",
"isInternationalCommerceEnabled": "false",
"currencySymbol": "$",
"cookieLoggedIn" : false,
"richRelevanceMode":"render",
"richRelevanceApiKey":"46baeda9936d6a41",
"richRelevanceUserId":"",
"richRelevanceSessionId":"bcdfd093813d487f67a1a39fb166b903",
"rrBaseUrl":"//recs.richrelevance.com/rrserver/",
"rrChannelId":"-",
"rrMobileChannelId":"c6e0f249ecc40744",
"hashedUserIdForCriteo":"",
"rrTimeout":"10000",
"isEducatorAccount": "false",
"sessionIsDC": "false",
"fullyLoggedIn" : false,
"isMobile":"false",
"isProp65User":"",
"JSESSIONID":"gotAjKIQXAHvLdu7bthDHQFdmrv2EcM-IuRNR2Cw.mfbotc01",
"enableTwoDayShipMessage":"true",
"enableAskUserLocation":"true",
"showEloyalty": "true",
"loyaltyName":"rewards",
"showLoyalty":"true",
"loyaltyUser":"",
"loyaltyPoints":"",
"showCheckoutLoyalty":"true",
"callCenterNumber" : "800-449-9128",
"liveChat" : "false",
"doNotSell":""
}
Why Shop With Us?
Kick off the season with holiday deals and accessory coupon savings. For even more discounts, call 888-688-0208 or chat online
Holiday Kickoff Sale - Up to 50% off on select gear
Shop by Category
This season, gift now & pay later with 
Get Details
MMGS7/000000120532800_MEDIA_SET
{
"slidesToShow": 1,
"infinite": true,
"arrows": false,
"dots": true,
"lazyLoad": "ondemand",
"speed": 300,
"mobileFirst": true,
"swipe": true,
"asNavFor":".desktop-image-viewer-nav",
"responsive":[
{
"breakpoint":975,
"settings":{
"dots":false,
"arrows": true,
"asNavFor":".desktop-image-viewer-nav"
}
}
]
}
{
"slidesToShow":7,
"infinite": false,
"arrows":false,
"dots":false,
"lazyLoad":"ondemand",
"speed":300,
"mobileFirst":true,
"asNavFor":".main-media-viewer",
"focusOnSelect":true,
"centerMode":false,
"swipeToSlide": true
}
BOSS
Used BOSS Used BOSS Katana ktn 50 Gen III Guitar Combo Amp
true false
199.99 $199.99true
Or
6-Month Special Financing
Limited time Learn more
More ways to pay:
Lease-to-own with Progressive Leasing.
Learn more
This oversized item has special shipping requirements
Good
This product is completely functional and shows some signs of use. It may have surface scratches and/or dings and dents.
Contact Seller
Guitar Center Danvers
Contact Seller
Why Guitar Center?
Guitar Center has made their collection of Used and Vintage gear–the largest one around–available to Musician's Friend customers.
Email Us
{"departments":[{"departmentName":"Stores","departmentId":"800001","departmentKey":"stores","selected":"false","topics":[{"topicName":"Used And Vintage","topicId":"1000001","contactKey":"used_and_vintage","requiresStore":"true","selected":"false"}]},{"departmentName":"Privacy Policy","departmentId":"500005","departmentKey":"Privacy Policy","selected":"false","topics":[{"topicName":"Privacy Question/Concern","topicId":"500003","contactKey":"Privacy Question/Concern","requiresStore":"false","selected":"false"}]},{"departmentName":"Feedback","departmentId":"100001","departmentKey":"Feedback","selected":"false","topics":[{"topicName":"Feedback","topicId":"100001","contactKey":"Feedback","requiresStore":"false","selected":"false"},{"topicName":"Mobile App Feedback","topicId":"700001","contactKey":"Mobile App Feedback","requiresStore":"false","selected":"false"}]},{"departmentName":"Customer Service","departmentId":"400001","departmentKey":"Customer Service","selected":"false","topics":[{"topicName":"Quotes","topicId":"400010","contactKey":"Quotes","requiresStore":"false","selected":"false"},{"topicName":"Change Order","topicId":"400002","contactKey":"Change Order","requiresStore":"false","selected":"false"},{"topicName":"Checkout","topicId":"400003","contactKey":"Checkout","requiresStore":"false","selected":"false"},{"topicName":"Returns","topicId":"400011","contactKey":"Returns","requiresStore":"false","selected":"false"},{"topicName":"Cancel Order","topicId":"400001","contactKey":"Cancel Order","requiresStore":"false","selected":"false"},{"topicName":"Order Status","topicId":"400006","contactKey":"Order Status","requiresStore":"false","selected":"false"},{"topicName":"Platinum Card","topicId":"400007","contactKey":"Platinum Card","requiresStore":"false","selected":"false"},{"topicName":"General Questions","topicId":"400004","contactKey":"General Questions","requiresStore":"false","selected":"false"},{"topicName":"Policies","topicId":"400008","contactKey":"Policies","requiresStore":"false","selected":"false"},{"topicName":"Price Matching","topicId":"400009","contactKey":"Price Matching","requiresStore":"false","selected":"false"}]},{"departmentName":"International Customer Service","departmentId":"400002","departmentKey":"International Customer Service","selected":"false","topics":[{"topicName":"Shipping Restrictions","topicId":"400020","contactKey":"Shipping Restrictions","requiresStore":"false","selected":"false"},{"topicName":"Espanol","topicId":"400013","contactKey":"Espanol","requiresStore":"false","selected":"false"},{"topicName":"Existing Orders","topicId":"400014","contactKey":"Existing Orders","requiresStore":"false","selected":"false"},{"topicName":"Customs and Duties","topicId":"400012","contactKey":"Customs and Duties","requiresStore":"false","selected":"false"},{"topicName":"Product Availability","topicId":"400017","contactKey":"Product Availability","requiresStore":"false","selected":"false"},{"topicName":"Returns and Exchanges","topicId":"400018","contactKey":"Returns and Exchanges","requiresStore":"false","selected":"false"},{"topicName":"Other","topicId":"400015","contactKey":"Other","requiresStore":"false","selected":"false"},{"topicName":"Payment Methods","topicId":"400016","contactKey":"Payment Methods","requiresStore":"false","selected":"false"},{"topicName":"Shipping Options","topicId":"400019","contactKey":"Shipping Options","requiresStore":"false","selected":"false"}]},{"departmentName":"Technical Support","departmentId":"400003","departmentKey":"Technical Support","selected":"false","topics":[{"topicName":"Percussion","topicId":"400031","contactKey":"Percussion","requiresStore":"false","selected":"false"},{"topicName":"Band and Orchestra","topicId":"400021","contactKey":"Band and Orchestra","requiresStore":"false","selected":"false"},{"topicName":"Special Orders","topicId":"400032","contactKey":"Special Orders","requiresStore":"false","selected":"false"},{"topicName":"Other Product","topicId":"400030","contactKey":"Other Product","requiresStore":"false","selected":"false"},{"topicName":"Guitar","topicId":"400024","contactKey":"Guitar","requiresStore":"false","selected":"false"},{"topicName":"Home Recording","topicId":"400025","contactKey":"Home Recording","requiresStore":"false","selected":"false"},{"topicName":"Bass","topicId":"400022","contactKey":"Bass","requiresStore":"false","selected":"false"},{"topicName":"DJ Gear","topicId":"400023","contactKey":"DJ Gear","requiresStore":"false","selected":"false"},{"topicName":"Lighting","topicId":"400028","contactKey":"Lighting","requiresStore":"false","selected":"false"},{"topicName":"Live Sound","topicId":"400029","contactKey":"Live Sound","requiresStore":"false","selected":"false"},{"topicName":"Instructional","topicId":"400026","contactKey":"Instructional","requiresStore":"false","selected":"false"},{"topicName":"Keyboards","topicId":"400027","contactKey":"Keyboards","requiresStore":"false","selected":"false"}]},{"departmentName":"Comments","departmentId":"400004","departmentKey":"Comments","selected":"false","topics":[{"topicName":"Comments","topicId":"400033","contactKey":"Comments","requiresStore":"false","selected":"false"}]}]}
Used BOSS Used BOSS Katana ktn 50 Gen III Guitar Combo Amp
Oops!
- Flexible Financing
- Lowest Price
Gold Coverage Protection
Protect your gear
Gold Coverage Protection
Gold Coverage goes above and beyond the manufacturer's warranty to protect your gear from unexpected breakdowns, accidental damage from handling and failures. This plan covers your product for one, two, three or up to five years from your date of purchase, costs just pennies per day and gives you a complete "no-worry" solution for protecting your investment.
Gold Coverage Includes:
- Unexpected and unintentional spills, drops and cracks
- Normal wear and tear
- Power surges
- Dust, internal heat and humidity
Other plan features include:
- For products over $200, No Lemon Policy applies. If it fails for the same defect 3 times, it is replaced on the 4th breakdown. (Does not apply to failures due to drops, spills, and cracks)
- For products under $200 experiencing the above failures, a Musician's Friend gift card will be issued for the full price of the product + tax.
- Shipping fees covered if required for repair or replacement
- Plans are transferable in the event merchandise is sold
- Plans are renewable on new gear
*Limitations and exclusions apply. See terms and conditions (Opens in new window) for program details
Term for New Gear begins on date of purchase but does not replace the store return policy or manufacturer coverage.
Overview
Looking for a reliable amp with powerful tone-shaping capabilities? This used BOSS Katana KTN-50 MkIII Guitar Combo Amp is in good condition and ready to be your go-to companion for practice, rehearsal, or small gigs. Featuring 50 watts of power and sculpted through a custom 12-inch speaker, this amp delivers rich, punchy sound across five unique amp voicings—Clean, Crunch, Lead, Brown, and Acoustic. With 60 customizable Boss effects accessible via the Boss Tone Studio software, you can fine-tune your sound effortlessly. Other standout features include onboard EQ, reverb, and delay controls, along with a power selector to scale down wattage for bedroom-friendly jams. Designed with player convenience in mind, it also includes a handy built-in USB interface for direct recording. While showing signs of light wear from use, this amp performs flawlessly, offering quality sound at a great value. Plug in and unlock your true creative potential!
Shop with a Friend
2-Year Free Warranty on Guitars
Contact Us for Details
Every guitar or bass you purchase from Musician's Friend (electric or acoustic, New or Open Box) includes two years of protection from manufacturer defects.
We're Here for You
Contact Us
Our Gear Advisers are available to guide you through your entire shopping experience. Call or Chat for expert advice and to hear the latest deals.
Want to customize your own bundle?
Our Gear Adviser are ready to help.
Musician's Friend Support
A Gear Adviser is ready to take your questions
Our Gear Advisers are currently offline
MON - FRI 6 AM - 8 PM PT
SAT - SUN 7 AM - 7 PM PT
Looking for something else? Find answers at our Help Center