This adaptor allows a B&O cartridge to be used on a standard 1/2” mount tone arm. It is in very good condition. Please look at the pictures for condition sold as is with no refunds.

This is a listing Bang & Olufsen 1 MMC1, 1 MMC2 , 2 MMC4 and 1 MMC5 Cartridges FOR PARTS OR REPAIR. Regards, Imran

This adaptor allows a B&O cartridge to be used on a standard 1/2” mount tone arm. It is in very good condition. Please look at the pictures for condition sold as is with no refunds.

B&O Beogram 5500 + MMC1. The MMC1 is the best cartridge B&O ever produced and very sought after. This has less than 10 hours of use, so it is practically new. It is not a SoundSmith copy (1800,-) but the original one. I used the MMC2 I also had for daily use and this rare MMC1 was only for very special moments. The record deck is in a very good condition for its age. It has been serviced 3 years ago, the scratches on it are so small that they dont show up in the photos. I bought them as new: Beogram in 1990 and MMC1 in 1993. The items are located in Finland and You are welcome to listen them Yourself. I will send to EU tracked, but we both have to discuss and agree how it is done before the actual sale. The listing ends at 31.5. due to our summercruise starts then.

This adaptor allows a B&O cartridge to be used on a standard 1/2” mount tone arm. It is in very good condition. Please look at the pictures for condition sold as is with no refunds.

This adaptor allows a B&O cartridge to be used on a standard 1/2” mount tone arm. It is in very good condition. Please look at the pictures for condition sold as is with no refunds.

This adaptor allows a B&O cartridge to be used on a standard 1/2” mount tone arm. It is in very good condition. Please look at the pictures for condition sold as is with no refunds.

This is a listing Bang & Olufsen MMC1 Cartridge ‘NEEDS STYLUS/FOR REPAIR’. The price is ABSOLUTELY FIRM so please do not send email about any offer. Item is SOLD AS IS.

Bang Olufsen MMC1 Stylus Cartridge Retipped Refurbished Beogram 6500 8002 7000. PROFESSIONALLY REFURBISHED using a sapphire cantilever and contact line diamond, SECURITY MARKED, TESTED AND PHOTOGRAPHED. Tested on a Beogram 6500, 2000 and a Beocenter 2200 & 7007. Not a Soundsmith copy but the real deal. Interchangeable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX2 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700. Display stand not included NEW BOXED BANG & OLUFSEN MMC1 Stylus Cartridge for B&O Beogram 6500 8002 Beocenter 2200 7007 plus these below WHATS BETTER THAN A 30-YEAR OLD UNUSED MMC1? A PROFESSIONALLY REFURBISHED MMC1 (OBVS!) Inspected, tested and confirmed as better than new (old stock) condition - see imagesInterchnagable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX TX2 1800 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700MMC means Moving Micro-Cross a superior pick up technology - see belowMMC2 is the SAME spec as MMC1 with the absolute best profile (with the lowest ETM) being labelled as 1s. Get the same spec for hundreds less!ONLY 0.3 milligrammes tracking force that really protects your precious vinylSapphire tubular cantilever and line contact diamond to reduce record wear and maintain optimum surface contact providing extended and more accurate sound reproductionEffective Tip Mass of mg 0,3 B&Os best ever was just 0,25 but if you can find an MMC1 let me know too! - explanation belowBuy with confidence, over 75 new/new other condition MMC cartridge/styli sold in the last 3 years all with 100% feedbackWill fit BeoGram models: RX RX2 TX TX2 1800 2000 2404 3000 3300 3500 4500 5000 5005 5500 6002 6500 7000 8002 8500 9000 9500One MMC1 supplied Photo of all 5 MMC range is for illustration onlyMMC1 Manufactured: 1984 - 1996 Designer: Jacob Jensen Colours: Silver and Black The MMC1 was the top of the range of B&Os new cartridge range. It was only available as an upgrade - even the top of the range Beogram 8002 was only fitted with the MMC2 The MMC1 had a line contact diamond mounted on a tubular sapphire cantilever. The tubular construction offered less weight than a solid cantilever but with immense stiffness. The diamond profile was similar to that of the MMC20CL being line contact. The way to look at these cartridges was to imagine an elliptical profile but with both the front and rear facets being scooped out. In this way the vertical contact surface was maximised and the horizontal element kept to a minimum.The MMC1 and MMC2 were essentially the same cartridge with the MMC1 using the best specified diamond tips. The MMC system was carried over from the SP series but taken to an even smaller level.MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal.Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. MMC1 Product Specifications DescriptionNude multi-radial Contact Line diamond, mounted on a sapphire cantilever Tracking force - grams1 Diamond Stylus Cont. line nude Cantilever tubeSapphireEffective tip mass mg0,25 Compliance mg/mN 30 Frequency 20-20000 Hz=/-dB1 Channel separation 1000>dB30 Output mV/cm/s RMS0,6 Cartridge weight gram1,6

Got this on a Yamaha… hoping it can find a new home. The cartridge is included but has a bad stylus

This Bang & Olufsen MMC1 Beogram Turntable Cartridge is a must-have for all vinyl enthusiasts. With compatibility for Bang & Olufsen brand and a type of cartridge, this piece is perfect for any turntable. The brand speaks for itself, making it a reliable choice for music lovers. The cartridge is in excellent working condition, ensuring that the sound quality is clear and crisp. It is suitable for consumer electronics and falls under the TV, Video & Audio Parts category. Upgrade your listening experience with this amazing cartridge.

Bang & Olufsen MMC1 Cartridge Stylus With Cartridge Adaptor Has Stylus Guard - Good Condition With Very Little Use Supplied As Shown Free Next Day P&P

Excellent Bang & Olufsen MMC1 Cartridge/Stylus In Original Box It sounds great and is ready to be installed in your turntable! Looks good under microscope. From Smoke Free Audiophile Home.

Excellent Bang & Olufsen MMC1 Cartridge/Stylus In Original Box It sounds great and is ready to be installed in your turntable! Looks good under microscope. From Smoke Free Audiophile Home.

Excellent Bang & Olufsen MMC1 Cartridge/Stylus In Original Box It sounds great and is ready to be installed in your turntable! Looks good under microscope. From Smoke Free Audiophile Home.

NEW BOXED BANG & OLUFSEN MMC1 Stylus Cartridge for B&O Beogram 6500 8002 Beocenter 2200 7007 plus these below WHATS BETTER THAN A 30-YEAR OLD UNUSED MMC1? A PROFESSIONALLY REFURBISHED MMC1 (OBVS!) One MMC1 Cartridge supplied. Main photograph shows range available - see alternative listings for stock Inspected, tested and confirmed as better than new (old stock) condition - see imagesInterchnagable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX TX2 1800 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700MMC means Moving Micro-Cross a superior pick up technology - see belowMMC2 is the SAME spec as MMC1 with the absolute best profile (with the lowest ETM) being labelled as 1s. Get the same spec for hundreds less!ONLY 0.3 milligrammes tracking force that really protects your precious vinylSapphire tubular cantilever and line contact diamond to reduce record wear and maintain optimum surface contact providing extended and more accurate sound reproductionEffective Tip Mass of mg 0,3 B&Os best ever was just 0,25 but if you can find an MMC1 let me know too! - explanation belowBuy with confidence, over 75 new/new other condition MMC cartridge/styli sold in the last 3 years all with 100% feedbackWill fit BeoGram models: RX RX2 TX TX2 1800 2000 2404 3000 3300 3500 4500 5000 5005 5500 6002 6500 7000 8002 8500 9000 9500One MMC1 supplied Photo of all 5 MMC range is for illustration onlyMMC1 Manufactured: 1984 - 1996 Designer: Jacob Jensen Colours: Silver and Black The MMC1 was the top of the range of B&Os new cartridge range. It was only available as an upgrade - even the top of the range Beogram 8002 was only fitted with the MMC2 The MMC1 had a line contact diamond mounted on a tubular sapphire cantilever. The tubular construction offered less weight than a solid cantilever but with immense stiffness. The diamond profile was similar to that of the MMC20CL being line contact. The way to look at these cartridges was to imagine an elliptical profile but with both the front and rear facets being scooped out. In this way the vertical contact surface was maximised and the horizontal element kept to a minimum.The MMC1 and MMC2 were essentially the same cartridge with the MMC1 using the best specified diamond tips. The MMC system was carried over from the SP series but taken to an even smaller level.MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal.Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. MMC1 Product Specifications DescriptionNude multi-radial Contact Line diamond, mounted on a sapphire cantilever Tracking force - grams1 Diamond Stylus Cont. line nude Cantilever tubeSapphireEffective tip mass mg0,25 Compliance mg/mN 30 Frequency 20-20000 Hz=/-dB1 Channel separation 1000>dB30 Output mV/cm/s RMS0,6 Cartridge weight gram1,6 I dont like to disguise the postage and packaging costs in the item price. This shipping price includes, packing materials, insurance and first class tracking that is an unfortunate necessity due to buyer fraud. It is not even the full cost, only the Royal Mail charge. Thank you for your understanding.

Bang Olufsen MMC1 Stylus Cartridge Retipped Refurbished Beogram 6500 8002 7000. PROFESSIONALLY REFURBISHED using a sapphire cantilever and contact line diamond, SECURITY MARKED, TESTED AND PHOTOGRAPHED. Tested on a Beogram 6500, 2000 and a Beocenter 2200 & 7007. Not a Soundsmith copy but the real deal. Interchangeable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX2 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700. Display stand not included NEW BOXED BANG & OLUFSEN MMC1 Stylus Cartridge for B&O Beogram 6500 8002 Beocenter 2200 7007 plus these below WHATS BETTER THAN A 30-YEAR OLD UNUSED MMC1? A PROFESSIONALLY REFURBISHED MMC1 (OBVS!) Inspected, tested and confirmed as better than new (old stock) condition - see imagesInterchnagable with any deck that has used an MMC 1 - 5 cartridge. Eg. Beogram RX RX2 TX TX2 1800 2000 3000 3300 3500 4500 5000 5500 5005 6500 7000 8002 9000 9500 and Beocenter 2200 7007 7700MMC means Moving Micro-Cross a superior pick up technology - see belowMMC2 is the SAME spec as MMC1 with the absolute best profile (with the lowest ETM) being labelled as 1s. Get the same spec for hundreds less!ONLY 0.3 milligrammes tracking force that really protects your precious vinylSapphire tubular cantilever and line contact diamond to reduce record wear and maintain optimum surface contact providing extended and more accurate sound reproductionEffective Tip Mass of mg 0,3 B&Os best ever was just 0,25 but if you can find an MMC1 let me know too! - explanation belowBuy with confidence, over 75 new/new other condition MMC cartridge/styli sold in the last 3 years all with 100% feedbackWill fit BeoGram models: RX RX2 TX TX2 1800 2000 2404 3000 3300 3500 4500 5000 5005 5500 6002 6500 7000 8002 8500 9000 9500One MMC1 supplied Photo of all 5 MMC range is for illustration onlyMMC1 Manufactured: 1984 - 1996 Designer: Jacob Jensen Colours: Silver and Black The MMC1 was the top of the range of B&Os new cartridge range. It was only available as an upgrade - even the top of the range Beogram 8002 was only fitted with the MMC2 The MMC1 had a line contact diamond mounted on a tubular sapphire cantilever. The tubular construction offered less weight than a solid cantilever but with immense stiffness. The diamond profile was similar to that of the MMC20CL being line contact. The way to look at these cartridges was to imagine an elliptical profile but with both the front and rear facets being scooped out. In this way the vertical contact surface was maximised and the horizontal element kept to a minimum.The MMC1 and MMC2 were essentially the same cartridge with the MMC1 using the best specified diamond tips. The MMC system was carried over from the SP series but taken to an even smaller level.MMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal.Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. MMC1 Product Specifications DescriptionNude multi-radial Contact Line diamond, mounted on a sapphire cantilever Tracking force - grams1 Diamond Stylus Cont. line nude Cantilever tubeSapphireEffective tip mass mg0,25 Compliance mg/mN 30 Frequency 20-20000 Hz=/-dB1 Channel separation 1000>dB30 Output mV/cm/s RMS0,6 Cartridge weight gram1,6

Excellent Bang & Olufsen MMC1 Parts In Original Box. This is not complete, its only the original packaging and a couple of the parts for the mmc1. See pictures.

Excellent Bang & Olufsen MMC1 Cartridge/Stylus In Original Box It sounds great and is ready to be installed in your turntable! Looks good under microscope. From Smoke Free Audiophile Home.

Original Bang & Olufsen MMC2 Cartridge/StylusNewly refurbished Bang & Olufsen MMC2.Works as direct Replacement for with MMC1Refurbished suspension with an original Bang & Olufsen nude multi-radial contact line diamond mounted on a sapphire tube cantilever.Tracking perfectly with 1gram vertical tracking forceMMC2 Specifications :Nude multi-radial Contact Line diamond mounted on a sapphire cantileverTracking force 1 gramNude Contact Line diamond stylusCantilever tube - sapphire Effective tip mass 0.3 mgCompliance mg/mN 30Frequency 20-20000 Hz=/-dB 1.5Channel separation 1000>dB 25Output mV/cm/s RMS 0.6Cartridge weight 1.6 grams Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC2 Cartridge/StylusNewly refurbished Bang & Olufsen MMC2.Works as direct Replacement for with MMC1Refurbished suspension with an original Bang & Olufsen nude multi-radial contact line diamond mounted on a sapphire tube cantilever.Tracking perfectly with 1gram vertical tracking forceMMC2 Specifications :Nude multi-radial Contact Line diamond mounted on a sapphire cantileverTracking force 1 gramNude Contact Line diamond stylusCantilever tube - sapphire Effective tip mass 0.3 mgCompliance mg/mN 30Frequency 20-20000 Hz=/-dB 1.5Channel separation 1000>dB 25Output mV/cm/s RMS 0.6Cartridge weight 1.6 grams Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC2 Cartridge/StylusNewly refurbished Bang & Olufsen MMC2.Works as direct Replacement for with MMC1Refurbished suspension with an original Bang & Olufsen nude multi-radial contact line diamond mounted on a sapphire tube cantilever.Tracking perfectly with 1gram vertical tracking forceMMC2 Specifications :Nude multi-radial Contact Line diamond mounted on a sapphire cantileverTracking force 1 gramNude Contact Line diamond stylusCantilever tube - sapphire Effective tip mass 0.3 mgCompliance mg/mN 30Frequency 20-20000 Hz=/-dB 1.5Channel separation 1000>dB 25Output mV/cm/s RMS 0.6Cartridge weight 1.6 grams Courtesy of Beoworld.orgMMC stands for Moving Micro-Cross; the patented moving-iron principle upon which all B&O cartridges were based. This unique system employed a cross-shaped armature which, among other advantages, guaranteed exceptional stereo separation since each channel moves on a separate axis.The job of any pickup cartridge is to transform the records physical profile (groove modulation) into corresponding electrical signals (which are then amplified or enlarged by the amplifier and turned into audible sound waves by the loudspeaker.A cartridge must perform three separate and exacting tasks if it is to do this job successfully. It must function mechanically (the movements of the stylus in the groove); it must function magnetically (using the physical movements to create changes in a magnetic field); and it must function electrically (using the changes in magnetic flux to generate an electrical current). At each stage, one type of energy is transferred into another, quite different, type. And the transfer must be perfect, with no energy lost and none added from extraneous sources.No cartridge will ever reach this ideal unless the Laws of Physics can be repealed. However, by understanding the relationships between the three transfer stages and continually applying refined engineering techniques, B&Os belief was that each stage of cartridge improvement would bring each successive cartridge closer to the ideal. Record wear and the cartridgeIf you take music seriously the value of your record collection is likely to be high. Many of your records are likely to be irreplaceable. You will also know that the signals pressed into your vinyl discs are very fragile indeed. The pickup cartridge can be the discs worse enemy since an ill-suited cartridge can mark a record for life in a single play.While B&O is aware that cartridge specifications are inter-related, their research shows consistently that Effective Tip Mass (ETM) is one of the major factors affecting record wear. ETM is the equivalent of the amount of inertia the groove sees in moving or accelerating the stylus tip. Consequently, the higher the ETM value, the higher the force required for a given constant acceleration. Obviously, more force results in more wear.Three elements contribute to ETM. The stylus tip (diamond) contributes with its entire weight and mass. The armature contributes between 5 - 20% of its weight and mass; the cantilever around 30%. B&O has been able to reduce ETM substantially by refining these elements and building them into an integrated unit. The result is a system which not only reduces damage to the groove walls dramatically, but also provides exceptional performance at all frequencies. Any questions just get in touch, Id be glad to help.