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
Hablamos Español
866.226.2919
Hours:
MON - FRI 6 AM – 7 PM PT
SAT 7 AM – 6 PM PT
SUN 8 AM – 5 PM PT
Bob Reeves Trumpet Mouthpiece Underpart Only 41 ES Cup 692sL Backbore
true true- Applying is fast and easy!
- Status and credit amount on validation!
- Instant decisions if approved, so you can make your purchase now!
Get the Lease-to-Own program that helps you purchase the gear you need today
- No Credit Needed*
- 90-day Purchase Option*
Standard agreement offers 12 months to ownership. 90-day purchase options cost more than the retailer's cash price (except 3-month option in CA). To purchase early call 877-898-1970
- Flexible Payments
The advertised service is lease-to-own or a rental- or lease-purchase agreement provided by Prog Leasing, LLC, or its affiliates. Acquiring ownership by leasing costs more than the retailer's cash price. See lease for details. Leasing available on select items at participating locations only. Not available in MN, NJ, VT, WI, WY. *No Credit Needed - Progressive Leasing obtains information from credit bureaus. Not all applicants are approved. *The initial Payment (plus tax) is charged at lease signing. Remaining lease payments will be determined upon item selection. *90-day purchase option - Standard agreement offers 12 months to ownership. 90-day purchase options cost more than the retailer's cash price (except 3-month option in CA). To purchase early call 877-898-1970
Musician's Friend Rewards
Join for free and start earning 8% back on every purchase. Rewards members also receive double- and triple-point offers, access to member-only deals, as well as a dedicated phone line to Gear Advisers and a $25 coupon on your birthday, all on us.
Join For FreeThis oversized item has special shipping requirements
Style: 41 ES Cup 692sL Backbore
40 ES Cup 692sL Backbore
$174.50
{
"name": "40 ES Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000932813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000932813",
"displaySku": "585937 000932813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000932813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-40-ES-Cup-692sL-Backbore/585937000932813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 40 ES Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
40 SV Cup 692sL Backbore
$174.50
{
"name": "40 SV Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000933813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000933813",
"displaySku": "585937 000933813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000933813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-40-SV-Cup-692sL-Backbore/585937000933813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 40 SV Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
40 S Cup 692sL Backbore
$174.50
{
"name": "40 S Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000934813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000934813",
"displaySku": "585937 000934813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000934813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-40-S-Cup-692sL-Backbore/585937000934813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 40 S Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
41 ES Cup 692sL Backbore
$174.50
{
"name": "41 ES Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000935813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],
"warranty": false,
"freeWarrantyAvail": false,
"sku": "site1sku585937000935813",
"displaySku": "585937 000935813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000935813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-41-ES-Cup-692sL-Backbore/585937000935813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 41 ES Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
41 SV Cup 692sL Backbore
$174.50
{
"name": "41 SV Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000936813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000936813",
"displaySku": "585937 000936813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000936813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-41-SV-Cup-692sL-Backbore/585937000936813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 41 SV Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
41 S Cup 692sL Backbore
$174.50
{
"name": "41 S Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000937813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000937813",
"displaySku": "585937 000937813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000937813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-41-S-Cup-692sL-Backbore/585937000937813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 41 S Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
42 ES Cup 692sL Backbore
$174.50
{
"name": "42 ES Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000938813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000938813",
"displaySku": "585937 000938813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000938813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-42-ES-Cup-692sL-Backbore/585937000938813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 42 ES Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
42 SV Cup 692sL Backbore
$174.50
{
"name": "42 SV Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000939813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000939813",
"displaySku": "585937 000939813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000939813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-42-SV-Cup-692sL-Backbore/585937000939813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 42 SV Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
42 S Cup 692sL Backbore
$174.50
{
"name": "42 S Cup 692sL Backbore",
"skuUrl":"/brass-instruments/bob-reeves-trumpet-mouthpiece-underpart-only/585937000940813",
"status": "backorderable",
"statusText": "Back Order",
"pimStatus": "R1",
"inventoryText": "Order Now!",
"inventoryKey": "back_order",
"price": 174.50,
"formatedIntegerValue": "174",
"decimalValue": "50",
"isOnSale": false,
"easyPayOptions":"0,0,300003,6 Months Promotional Financing,12/31/2026,Special 6-month special,174.5,true,/pages/Gear-Card-Rewards.gc,false,106,,/Special-Financing-Offers.gc,{primaryMonths}-month special financing,with no minimum purchase ,{secondaryMonths}-month financing,available on purchase of ${eligibleOrderValue} or more. Limited time,Get Details.,+ ${backInRewardsNum} back in rewards,09/27/2015,No Interest if paid in full within 6 Months* On qualifying purchases made with your Musician's Friend Platinum credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 6 months. Minimum monthly payments required. No interest will be charged on the promo balance if you pay it off|| in full|| within the promo period. If you do not|| interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period|| depending on purchase amount|| promo length and payment allocation. Regular account terms apply to non-promo purchases and|| after promo period ends|| to the promo balance. New Accounts as of 07/31/2025: Purchase APR 34.99%. Penalty APR 39.99%. Min Interest Charge $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval. ",
"msrp": 205.00,
"salePrice": 174.50,
"listPrice": 174.50,
"isPriceDrop": false,
"priceDropPrice": "",
"savingPercent": "0.00",
"promos":["freeShipping","topRated","flexibleFinancing","guarantee"],"freeWarrantyAvail": false,
"sku": "site1sku585937000940813",
"displaySku": "585937 000940813",
"serialized": false,
"stickerDisplayText":"10% Off $99+ / 15% Off $199+ W/ Code: Festive",
"stickerClass":"stickerEmphasis",
"downloadable":"false",
"shipsFree":true,
"condition": "New",
"priceVisibility": "",
"scene7SetID": "MMGS7/585937000940813_MEDIA_SET",
"inCheckoutPromo":"false",
"invMsgVendorDropShip":"false",
"invMsgOverSized":"false",
"invMsgBackOrdered":"false",
"invMsgPreOrder":"false",
"invMsgPromiseDate":"01-14-2026",
"fakeInvMsgPromiseDate":"",
"invMsgAvailability":"Order Now!",
"invMsgDetail":"This item is backordered but is available to reserve now. You will not be charged until the item ships.",
"invMsgAddOnText":"",
"invMsgCurrent":"Order Now!",
"invMsgAfterCutoff":"",
"orderCutoffTime":"Fri Dec 05 08:00:00 PST 2025",
"twoDayShippingSourceStatus":"",
"currencySymbol": "$",
"styleImgUrl": "https://media.musiciansfriend.com/is/image/MMGS7/Trumpet-Mouthpiece-Underpart-Only-42-S-Cup-692sL-Backbore/585937000940813-00-140x140.jpg",
"styleImgAlt": "Trumpet Mouthpiece Underpart Only 42 S Cup 692sL Backbore",
"freeGiftWarning":false,
"freeGiftWarningTips":"",
"kitCarouselItems": [],
"pdpLoyaltyPoints":"1,400",
"pdpLoyaltyPointsMultiplier":"1.0",
"checksum":"102697734125",
"restrictionType":"",
"restrictionError":""
}
Oops!
- Free Shipping
- Top Rated
- Flexible Financing
- Lowest Price
Trumpet Mouthpiece Underpart Only Specifications:
- 692sL Backbore - Efficient backbore in the upper register and delivers a clear, focused sound. When added to a deep cup the tone becomes dark, but still retains easy access to the upper register.
- B cup - Deep cylindrical bowl similar to a Bach 7B
- C cup - Medium-deep bowl similar to a Bach 3C
- D cup - Medium-deep conical bowl
- ES cup - Extra shallow bowl
- M cup - Medium bowl
- S cup - Shallow bowl
- SV cup - Very shallow conical "V" shape
- V cup - Very deep conical bowl
Questions & Answers
Do you have questions about this product?
- 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.
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.
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.
Musician's Friend Support







