Original Bang & Olufsen MMC20E Cartridge/StylusUk stock ready for dispatch Checked on a spectrum analyser, delicate, accurate and precise.Tracking perfectly.Sounds great.Stock images appearance will vary slightly.BANG & OLUFSEN MMC20E CART & STYLUS BEOGRAM 6000 4000 8000 BEOCENTER 7000 7002 3600 4600Inspected, tested - see images MMC means Moving Micro-Cross Titanium-bonded naked elliptical diamond, to reduce record wear and maintain optimum surface contact Effective Tip Mass of mg 0,4 this is what preserves your vinyl! MMC20EManufactured: 1979 - 1985 Designer: Jacob Jensen Colours: BlackPrior to the release of MMC1 - 5 cartridges, Bang & Olufsen had the following MMC range of combined styli and cartridges:MMC cartridges were available with standard ½ mounting brackets, or with easy plug-in, lightweight connectors. These enabled you to mount MMC cartridges onto non-Bang & Olufsen arms. The cartridges plugged directly into Beogram pickup arms without additional mounting gearMMC 20 S was a stereo cartridge with a spherical framed diamondMMC 20 E was fitted with a framed elliptical diamond which has a high polishMMC 20EN had a naked elliptical diamond, mounted on a tiny tapered cantileverMMC 20 CL utilised a Contact Line naked diamond mounted on a single crystal sapphire cantilever. This shape ensures maximum groove contact. This was the most highly-specified cartridge in the MMC 20 rangeIn 1958, Bang & Olufsen introduced the first stereo pickup cartridge ever made in Europe. This was called the SP1. Since then, many design innovations and the creative use of new materials have kept B&Os cartridges at the forefront of audio technology. By 1979 - 80, Bang & Olufsens cartridges were represented by the MMC 20 series. 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. The MMC20 series therefore represented the closest that modern technology at that time, could possibly afford.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.Bang & Olufsen cartridges have always been highly acclaimed for their low ETM values. The ETM of the MMC 20CL is a mere 0,3mg and in the standard MMC 20 range,, only 0,5mg.MMC cartridges were manufactured by Bang & Olufsen as totally integrated units. This means that the elements were matched, balanced and sealed at the factory. Using a computer-supported testing programme,, each sealed unit was meticulously tested and its performance information automatically registered and packed with each cartridge. The information given included output voltage, relative voltage output (channel balance), channel separation and frequency response. Individually-calibrated frequency response curves were also supplied with the higher-specified MMC 20CL cartridges.

Original Bang & Olufsen MMC20S Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.5gram vertical tracking forceTested on a Beogram 2400-2 and 4002 and sounds crisp and clear on both channelsThe model replacement for the MMC3000Matches black systems like the Beocenter 3600 - available with a cartridge in my other listings giving you the look of the original systemKeep playing your vinyl in the manner it was meant to be heardLow Effective Tip Mass protects your most precious vinyl from wear and damage 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. This was the last of the MMC 20 range to be discontinued with cartridges being available late into the 1990s. It produced a typical warm B&O sound though lacked some of the more expensive models treble clarity. With an ETM of only 0.5mg, it was a fine cartridge and sturdy with it.The company’s range of MMC cartridges were integrated units, combining both stylus and cartridge as one slip-on unit. Matched, balanced and sealed in the factory each unit was meticulously computer tested with its results printed off and offered to the customer at time of sale. The printout included such information as output voltage, relative voltage output (channel balance), channel separation and frequency response. Manufactured: 1979 - 1985 Designer: Jacob Jensen Colours: BlackMMC 20 CartridgesPrior to the release of MMC1 - 5 cartridges, Bang & Olufsen had the following MMC range of combined styli and cartridges:MMC 20 S is a stereo cartridge with a spherical framed diamond Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC20S Cartridge/StylusUk stock ready for dispatch NOW Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.5gram vertical tracking forceTested on a Beogram 2400-2 and 4002 and sounds crisp and clear on both channelsThe model replacement for the MMC3000Matches black systems like the Beocenter 3600 - available with a cartridge in my other listings giving you the look of the original systemKeep playing your vinyl in the manner it was meant to be heardLow Effective Tip Mass protects your most precious vinyl from wear and damage 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. This was the last of the MMC 20 range to be discontinued with cartridges being available late into the 1990s. It produced a typical warm B&O sound though lacked some of the more expensive models treble clarity. With an ETM of only 0.5mg, it was a fine cartridge and sturdy with it.The company’s range of MMC cartridges were integrated units, combining both stylus and cartridge as one slip-on unit. Matched, balanced and sealed in the factory each unit was meticulously computer tested with its results printed off and offered to the customer at time of sale. The printout included such information as output voltage, relative voltage output (channel balance), channel separation and frequency response. Manufactured: 1979 - 1985 Designer: Jacob Jensen Colours: BlackMMC 20 CartridgesPrior to the release of MMC1 - 5 cartridges, Bang & Olufsen had the following MMC range of combined styli and cartridges:MMC 20 S is a stereo cartridge with a spherical framed diamond Any questions just get in touch, Id be glad to help.

BANG & OLUFSEN BEOCENTER 2600 BEOGRAM 1102 BEOVOX S35. All in good working order Beocenter works perfectly we have played a cassette and sounds fine through the speakers. The top has broken on the Beogram all the fittings are there for a new lid as seen in the photos, connects to the beocentre and static can be heard through the speakers when switched to audio. There is no stylus. the Beovox speakers are in good working condition.

BANG & OLUFSEN BEOCENTER 2600 BEOGRAM 1102 BEOVOX S35. All in good working order Beocenter works perfectly we have played a cassette and sounds fine through the speakers. The top has broken on the Beogram all the fittings are there for a new lid as seen in the photos, connects to the beocentre and static can be heard through the speakers when switched to audio. There is no stylus. the Beovox speakers are in good working condition.

BANG & OLUFSEN BEOCENTER 2600 BEOGRAM 1102 BEOVOX S35. All in good working order Beocenter works perfectly we have played a cassette and sounds fine through the speakers. The top has broken on the Beogram all the fittings are there for a new lid as seen in the photos, connects to the beocentre and static can be heard through the speakers when switched to audio. There is no stylus. the Beovox speakers are in good working condition.

BANG & OLUFSEN BEOCENTER 2600 BEOGRAM 1102 BEOVOX S35. All in good working order Beocenter works perfectly we have played a cassette and sounds fine through the speakers. The top has broken on the Beogram all the fittings are there for a new lid as seen in the photos, connects to the beocentre and static can be heard through the speakers when switched to audio. There is no stylus. the Beovox speakers are in good working condition.

BANG & OLUFSEN BEOCENTER 2600 BEOGRAM 1102 BEOVOX S35. All in good working order Beocenter works perfectly we have played a cassette and sounds fine through the speakers. The top has broken on the Beogram all the fittings are there for a new lid as seen in the photos, connects to the beocentre and static can be heard through the speakers when switched to audio. There is no stylus. the Beovox speakers are in good working condition.