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" : "11247948935",
"isInternational": "false",
"isWarrantyShippable": "true",
"isInternationalCommerceEnabled": "false",
"currencySymbol": "$",
"cookieLoggedIn" : false,
"richRelevanceMode":"render",
"richRelevanceApiKey":"46baeda9936d6a41",
"richRelevanceUserId":"",
"richRelevanceSessionId":"62244c7132b6d1c828eabc048ace6289",
"rrBaseUrl":"//recs.richrelevance.com/rrserver/",
"rrChannelId":"-",
"rrMobileChannelId":"c6e0f249ecc40744",
"hashedUserIdForCriteo":"",
"rrTimeout":"10000",
"isEducatorAccount": "false",
"sessionIsDC": "false",
"fullyLoggedIn" : false,
"isMobile":"false",
"isProp65User":"",
"JSESSIONID":"",
"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
MMGS7/000000120593078_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 GP10GK Effect Processor
true false
249.99 $249.99true
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
Great
This product shows little signs of use and all controls are completely functional. It may have minor surface scratches.
Contact Seller
Guitar Center Sugar Land
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 GP10GK Effect Processor
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 versatile tool to take your guitar tones to the next level? This used BOSS GP-10GK Effect Processor is in great condition and delivers studio-quality sound sculpting power in a compact, rugged design. Perfect for live performances or studio sessions, this processor is equipped with COSM amp modeling, guitar and bass tuning options, stunning polyphonic effects, and alternate tunings at the press of a button. When paired with the included GK-3 pickup (compatible with most guitars), unleash the full potential of synth-like tracking and realistic tones. With USB connectivity, it’s easy to integrate with recording software or trigger soft synths. Whether you're after lush ambient textures, classic overdrives, or experimental soundscapes, the GP-10GK has got you covered. A powerful and reliable addition to any musician's rig, this unit offers functionality and inspiration for every player. Don't miss this opportunity to elevate your sound!
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