Up for sale, a 1963 Ampeg B-15N Portaflex fliptop amp combo in excellent condition, freshly serviced and loaded with a JBL D140F speaker. The B-15N is one of the most recorded and highly regarded tube bass amp circuits of all time, and this early (third year) example has just been given a clean bill of health from our techs here at Mike and Mike’s Guitar Bar. As the amp that defined the Motown bass sound and a must-have for studios worldwide, the B-15N is the undisputed king of vintage studio bass tone, with a thumpy sound that is round, detailed, and versatile, bringing out the best in your instrument’s natural tonal characteristics. The two channels each have a unique voice, with Channel One being a bit more mellow and smooth, while Channel Two has a touch more grit and bite, also making it an excellent choice for guitar (diming this channel out delivers a particularly nice overdriven roar with a humbucker or P-90 equipped instrument). The circuit retains the original transformer pair, with a fully recapped power supply and a couple new Sprague caps in the preamp. All but one of the original CTS pots are present, with visible date codes from the 6th week of’63. The original plexiglass Ampeg badge is present, illuminating as it should when the amp powers on. The head and cab still connect via the original multi-pin connector, and the amp has been upgraded with a three-prong power cable. The tube complement includes a matched pair of Tung Sol 5881 power tubes, a vintage Westinghouse rectifier, and the original trio of Ampeg by Sylvania 6SL7 preamp tubes. The speaker is a vintage JBL D140F 15 alnico magnet driver. While Ampeg would include a CTS speaker with the B-15N from the factory (or in some cases an Altec for an upcharge), this JBL is arguably a better option, offering the ideal blend of dynamism, headroom and overall efficiency for a tube-driven bass signal. The original tube chart is intact inside the cab, with the stamped serial number dating to 1963. This is a well-kept example, with bright chrome plating on the chassis, white silkscreen text, and all of the original knobs present. The original latches are present and the plastic handle for the head tray is MIA. The original blue diamond covering is notably clean throughout, while the trolley is a modern replacement.

Ampeg B-15N in good working condition. New JJ 6L6 Final tubes, all other test good. There is a modification with the top. The clips where removed and 2 metal brackets where installed the cabinet and thumbscrews hold the top onto the cabinet. There is also 2 metal strips riveted to the back, not sure why there are there, both where like that when I got it 3 years ago. The speaker code shows an Eminence 15 speaker with a date code of’78. Good amp sound good, no issues. The item “1978 Ampeg B-15N Portaflex Flip Top Vintage Tube Bass Amp 1×15″ is in sale since Thursday, July 16, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “flamflamflam” and is located in Harlan, Indiana. This item can’t be shipped, the buyer must pick up the item.

• Number of Channels: 2
• Number of Speakers: 1
• Model: B-15N Portaflex
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Guitar: Bass Amplifier
• Brand: Ampeg
• Amplifier Type: Combo
• Amplifier Technology: Vacuum Tube

Up for sale, a 1964 Ampeg B-15N “Flip-Top” Portaflex tube amplifier in excellent condition and in perfect working order, freshly serviced and ready for studio use. This clean B-15N is an early example with gleaming chrome, blue diamond tolex, a full set of vintage USA-made tubes, and stock CTS 15 speaker. As the amp that defined the Motown bass sound and a must-have for studios worldwide, the B-15N is the undisputed king of vintage bass tone, with a thick, thumpy sound that is round, detailed, and versatile, bringing out the best in your instrument’s natural tonal characteristics. The two channels each have a unique voice, with Channel One being a bit more mellow and smooth, while Channel Two has a touch more grit and bite, also making it an excellent choice for guitar (diming this channel out delivers a particularly nice overdriven roar with a humbucker or P-90 equipped instrument). Just given a checkup by our techs here at Mike & Mike’s Guitar Bar, this B-15N is ready for stage and studio use. The circuit features all of the original capacitors and CTS pots which date to the 21st week of 1964. The stock output transformer is intact, with a genuine vintage power transformer furnished by Fliptops. Fitted between the transformers, a new plexiglass Ampeg badge has been installed, illuminating as it should when the amp powers on. A new multi-pin connection between the head and cab has been installed, and the amp retains the original two-prong power cable. The speaker is the original CTS 15 driver with a clean black frame. This ceramic driver sound clear and powerful, keeping low frequencies rich and focused. The original tube chart is intact inside the cab, with the stamped serial number dating to August of 1964. Cosmetically, this amp is a particularly nice early B-15N, with clean white silkscreen text on the chrome-plated chassis and a full compliment of original knobs. The stock latches are still mounted to the original tray, and the shockmounts which secure the head to the tray are viable. The enclosure shows modest edge wear, particularly on the tray, yet as the photos show, this B-15N would look great in a studio. A new leather handle of the correct style has also been installed. Check out our shop “Mike & Mike’s Guitar Bar, ” and please let us know if we can answer any questions! We use double thick boxes, 1″ foam, and industrial 1/2″ bubble wrap to ensure that your amp arrives safely. International orders will be declared as merchandise, and the value of merchandise will be declared as the amount paid. We cannot declare anything as a gift or for a lesser value. We do our best to describe all items with honesty and accuracy, but to be sure, please. The item “1964 Ampeg B-15N Portaflex Fliptop Vintage Tube Amp Blue Diamond 1×15 CTS” is in sale since Sunday, August 2, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “mmguitarbar” and is located in Seattle, Washington. This item can be shipped worldwide.

• Number of Channels: 2
• Number of Speakers: 1
• Model: B-15N
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Compatible Guitar: Bass Amplifier
• Amplifier Type: Combo
• Brand: Ampeg
• Suitable For: Performance, Recording

Ampeg B-15N in good working condition. All tubes test good. Good amp sound good, no issues. I did not see a date code on the speaker, so I don’t know what year this is. The item “Ampeg B-15N Portaflex Flip Top Vintage Tube Bass Amp 1×15 Fort Wayne Indiana” is in sale since Thursday, July 16, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “flamflamflam” and is located in Harlan, Indiana. This item can’t be shipped, the buyer must pick up the item.

• Number of Channels: 2
• Number of Speakers: 1
• Model: B-15N Portaflex
• MPN: Does Not Apply
• Country/Region of Manufacture: United States
• Compatible Guitar: Bass Amplifier
• Brand: Ampeg
• Amplifier Type: Combo
• Amplifier Technology: Vacuum Tube

Up for sale, a 1970 Ampeg B-15N Portaflex tube amp in excellent condition and in perfect working order, complete with the original trolley and cover. The B-15N is one of the most recorded and highly regarded tube bass amp circuits of all time, and this classic four-input vintage model delivers the goods through the original 15 Eminence ceramic magnet speaker. Manufactured in the USA by Ampeg at their Linden, NJ factory and just given a clean bill of health from our techs here at Mike & Mike’s Guitar Bar, the amp is powered by a matched pair of properly biased Tung Sol 6L6GC power tubes. Notable for the addition of Ultra-Hi and Ultra-Lo rocker switches for each channel not found on earlier iterations, this B-15N has surprising output given its modest power and excels at a dynamic and detailed tone that can be extremely warm, or distinct and bright. Paired with a Precision Bass, it’s the perfect recipe for Motown thump. The original transformers are both present, and the preamp is virtually untouched, with original CTS pots and visible date codes from the 21st week of 1970. Along with the Tung Sol 6L6 power tubs, the amp features a combination of modern and vintage octal preamp tubes as well as a vintage Mullard GZ34 rectifier. The stock Eminence speaker has a clean frame and date code from the 13th week of 1970. The cabinet retains the original smooth black tolex, silver sparkle grillcloth, and Ampeg badge. The faceplate retains virtually all of the original blue pinstriping, along with a full compliment of original knobs. Wear on the cabinet is limited to minor scuffs and light edge wear, and all original hardware is included and viable including the shockmounts for the head and original latches. As the photos show, this B-15N would look great in a studio. The original screw-on trolley is included, along with the original cover (not pictured). Check out our shop “Mike & Mike’s Guitar Bar, ” and please let us know if we can answer any questions! We use double thick boxes, 1″ foam, and industrial 1/2″ bubble wrap to ensure that your amp arrives safely. International orders will be declared as merchandise, and the value of merchandise will be declared as the amount paid. We cannot declare anything as a gift or for a lesser value. We do our best to describe all items with honesty and accuracy, but to be sure, please. The item “1970 Ampeg B-15N Portaflex Fliptop Vintage Bass Tube Amp 1×15 with Trolley, Cover” is in sale since Sunday, May 31, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “mmguitarbar” and is located in Seattle, Washington. This item can be shipped worldwide.

• Number of Channels: 1
• Number of Speakers: 1
• Model: B-15N Portaflex
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Compatible Guitar: Bass Amplifier
• Amplifier Type: Combo
• Brand: Ampeg
• Suitable For: Performance, Recording

It is in very good condition and functions pretty good. Was tested and sounds amazing when the tubes warm up. There is very minor static in the top volume when first used but can be easily clean. Cosmetically in great shape and includes wheeled coasters. Vinyl cover is included. RMS Power Output: 30W RMS / 25W RMS. LF Driver: 1 x 15. Preamp: Tube (3 x 6SL7). Rectifier: Tube (1 x 5AR4 or 5U4G). Power Amp: Tube (2 x 6L6GC). Tone Controls: Bass and Treble (per channel). Power Tube Bias: Selectable. Speaker Outputs: 1 x 8 ohm, 2 x 4 ohm. Dimensions: H x W x D inches: 29 x 21 x 14 w/dolly. Thank You for your interest!!!! The item “Ampeg B-15N Portaflex Flip Top Vintage Tube Bass Amp 1×15″ is in sale since Saturday, February 22, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “kultureshop76″ and is located in Philadelphia, Pennsylvania. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Panama, Jamaica, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.

• Number of Channels: 2
• Number of Speakers: 1
• Model: B-15N Portaflex
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Compatible Guitar: Bass Amplifier
• Amplifier Type: Combo
• Brand: Ampeg

Up for sale, a 1963 Ampeg B-15N “Flip-Top” Portaflex tube amplifier in collector-grade condition and in perfect working order. This exceedingly clean B-15N is a very early example with gleaming chrome, blue diamond tolex, the original full set of matched Ampeg-branded tubes, original Jensen EM1501 speaker, rare tilt-back rod, and original trolley. As the amp that defined the Motown bass sound and a must-have for studios worldwide, the B-15N is the undisputed king of vintage bass tone, with a thick, thumpy sound that is round, detailed, and versatile, bringing out the best in your instrument’s natural tonal characteristics. The two channels each have a unique voice, with Channel One being a bit more mellow and smooth, while Channel Two has a touch more grit and bite, also making it an excellent choice for guitar (diming this channel out delivers a particularly nice overdriven roar with a humbucker or P-90 equipped instrument). Just given a checkup by our techs here at Mike & Mike’s Guitar Bar, this B-15N is ready for stage and studio use. The circuit features all of the original capacitors, untouched solder joints, and CTS pots which date to the 18th week of 1962. The stock transformers are present, and the serial number sticker inside the cabinet dates to February of 1963. The original multi-pin connection between the head and cab is intact, as is the original two-prong power cable. This ceramic driver sound clear and powerful, keeping low frequencies rich and focused. The original tit-back rod is secured inside the cabinet, a feature only seen on the B-15N until 1964. Cosmetically, this amp is the nicest early B-15N we’ve ever had in the shop, with flawless silkscreen text on a near mint chrome-plated chassis. The stock latches are still mounted to the original tray, and the head features four new shockmounts between the head and tray. All of the original hardware is present including the light up lucite “Ampeg” logo (with a custom Ampeg-factory inscription ostensibly for the original owner) and all of the original knobs. The trolley is original as well. The blue diamond tolex is original and exceedingly clean with some wear on the trolley tolex but only a few minor scuffs on the speaker enclosure edges. Check out our shop “Mike & Mike’s Guitar Bar, ” and please let us know if we can answer any questions! We use double thick boxes, 1″ foam, and industrial 1/2″ bubble wrap to ensure that your amp arrives safely. International orders will be declared as merchandise, and the value of merchandise will be declared as the amount paid. We cannot declare anything as a gift or for a lesser value. We do our best to describe all items with honesty and accuracy, but to be sure, please. The item “1963 Ampeg B-15N Portaflex Fliptop Vintage Tube Amp Blue Diamond 1×15 with Jensen” is in sale since Monday, March 23, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “mmguitarbar” and is located in Seattle, Washington. This item can be shipped worldwide.

• Number of Channels: 2
• Number of Speakers: 1
• Model: B-15N
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Amplifier Type: Combo
• Brand: Ampeg

1968 Ampeg B-15N Portaflex Vintage Tube Amp All Original Amplifier-Tested. Gives you that classic Motown thump. Delivers the Ampeg tone with power and focus. Please look closely at the pictures as they are part of the description. You can test the amp yourself prior to purchasing. Thank you for looking. The item “1968 Ampeg B-15N Portaflex Vintage Tube Amp All Original Amplifier-Tested” is in sale since Monday, October 28, 2019. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “dadxs5″ and is located in Pikesville, Maryland. This item can’t be shipped, the buyer must pick up the item.

• Brand: Ampeg
• Model: B-15-N
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube

Up for sale, a 1969 Ampeg B-15N Portaflex tube amp in good working order, complete with the original trolley and full vintage tube set. The B-15N is one of the most recorded and highly regarded tube bass amp circuits of all time, and this classic four-input vintage model delivers the goods through the original 15 Eminence ceramic magnet speaker. Manufactured in the USA by Ampeg at their Linden, NJ factory and just given a clean bill of health from our techs here at Mike & Mike’s Guitar Bar, the amp is powered by a matched pair of properly biased Phillips 6L6GC power tubes. Notable for the addition of Ultra-Hi and Ultra-Lo rocker switches for each channel not found on earlier iterations, this B-15N has surprising output given its modest power and excels at a dynamic and detailed tone that can be extremely warm, or distinct and bright. Paired with a Precision Bass, it’s the perfect recipe for Motown thump. The original transformers are both present, and the preamp is virtually untouched, with original CTS pots that date to mid-1969. Along with the Phillips 6L6 power tubs, the amp features a trio of original Ampeg-branded octal preamp tubes and a vintage 5AR4 rectifier. A new three-prong power cable has been installed. The stock Eminence speaker has a clean frame and date code from the 24th week of 1969. The cabinet retains the original smooth black tolex, while the baffle has been professionally regrilled with black and silver cloth that closely matches vintage spec and is fitted with the original large metal Ampeg badge. The faceplate retains virtually all of the original blue pinstriping. Wear on the cabinet includes minor scuffs and edge wear, with wear through the tolex on the back two top corners and a couple isolated additional spots. As the photos show, this B-15N would look great in a studio. The original screw-on trolley is included. Check out our shop “Mike & Mike’s Guitar Bar, ” and please let us know if we can answer any questions! We use double thick boxes, 1″ foam, and industrial 1/2″ bubble wrap to ensure that your amp arrives safely. International orders will be declared as merchandise, and the value of merchandise will be declared as the amount paid. We cannot declare anything as a gift or for a lesser value. We do our best to describe all items with honesty and accuracy, but to be sure, please. The item “1969 Ampeg B-15N Portaflex Fliptop Vintage Bass Tube Amp 1×15, USA Tube Set” is in sale since Wednesday, January 22, 2020. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “mmguitarbar” and is located in Seattle, Washington. This item can be shipped worldwide.

• Number of Channels: 2
• Number of Speakers: 1
• Model: B-15N Portaflex
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Compatible Guitar: Bass Amplifier
• Amplifier Type: Fliptop
• Brand: Ampeg

Up for sale, a 1975 Ampeg B-15N Portaflex tube amp in good working order with fresh power tubes. The B-15N is one of the most recorded and highly regarded tube bass amp circuits of all time, and this classic four-input vintage model delivers the goods through the original heavy duty CTS 15 speaker. Manufactured in the USA by Ampeg and recently serviced, the amp is powered by a pair of new and properly biased JJ 6L6 power tubes for a robust 30 watts of output. Surprisingly powerful given its modest power, the B-15N excels at a dynamic and detailed tone that can be extremely warm, or distinct and bright. Paired with a Precision Bass, it’s the perfect recipe for Motown thump. A rare version produced for only a few short years with white rocker switches, this Ampeg has a sleek visual appeal. This head has a couple new caps in the power supply and the circuit is otherwise 100% stock. The stock transformers are both present, and the circuit retains the original CTS pots which date to 1975. The faceplate is notably clean, with all of the original black silkscreened graphics intact on the polished aluminum, and all of the original knobs are intact too. Aside from the new pair of power tubes and rectifier, the rest of the tubes are all vintage valves which work as intended and sound great. The fliptop head secures to the cab with stock latches, and the shockmounts the hold the head to the mounting tray are viable as well. The original smooth black tolex and silver sparkle grillcloth is intact, and the original screw-in trolley is also present. There is some staining on the grillcloth, and wear on the cabinet around the edges, but overall, this is a fine example and a gig-worthy amp, freshly retubed and ready to go with an extremely original circuit and stock speaker. Check out our shop “Mike & Mike’s Guitar Bar, ” and please let us know if we can answer any questions! We use double thick boxes, 1″ foam, and industrial 1/2″ bubble wrap to ensure that your amp arrives safely. International orders will be declared as merchandise, and the value of merchandise will be declared as the amount paid. We cannot declare anything as a gift or for a lesser value. The item “1975 Ampeg B-15N Portaflex Fliptop Vintage Bass Tube Amp 1×15, Serviced” is in sale since Thursday, May 23, 2019. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “mmguitarbar” and is located in Seattle, Washington. This item can be shipped worldwide.

• Number of Speakers: 1
• Model: B-15N
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Compatible Guitar: Bass Amplifier
• Amplifier Type: Combo
• Brand: Ampeg
• Suitable For: Performance