2 cartridges and parts as shown. Untested from an estate sale.

B&O NEEDLES AND CARTRIDGES ALL CHECKED AND CAME OF WORKING DECKS,HARD TO FIND NOW UNLESS YOU PAY SILLY MONEY FOR THEM .

For sale the Soundsmith B&O SMMC4 Cartridge and Stylus with original box and paper work. This SMMC4 has very little, if any, hours on it. It was purchased as a backup for my MMC3 but never needed.

MMC4 cartridge. From Beocenter 7700. Previous owner of the Beocenter stated the had recently replaced the cartridge with this one, so possible fairly new. Cannot test, so sold AS IS.NOT WORKING.NOT RETURNS (it is not working, needs repair, or part out).

BANG AND OLUFSEN MMC4 STYLUS CARTRIDGE B&O MMC 4 BEOGRAM NEEDLE FOR PARTS ITEM CODE NUMBER: S22 FOR PARTS OR NOT WORKING CONDITION THE NEEDLE IS FOR PARTS OR NOT WORKING CONDITION, BECAUSE IT HAS POOR SOUND QUALITY. IT MAY HAVE COSMETIC SIGNS OF USE, SUCH AS SCRATCHES AND DENTS. IT IS COMING AS SEEN ON THE PHOTOS. PLEASE NOTE, BECAUSE THE ITEM IS FOR PARTS OR NOT WORKING CONDITION I AM NOT RESPONSIBLE IF ANY FAULTS APPEAR DURING FURTHER TESTS AND RETURNS ARE NOT ACCEPTED.PLEASE MAKE SURE YOU HAVE SEEN ALL PHOTOS BEFORE YOU DECIDE TO BUY IT, BECAUSE YOU WILL RECEIVE IT EXACTLY IN THE SAME CONDITION AS SEEN ON THE PHOTOS. EVERYTHING INCLUDED IN THE LISTING IS CLEARLY SHOWN ON THE PHOTOS.” Read less PLEASE NOTE, YOUR ITEM WILL BE DISPATCHED WITH DPD NEXT DAY DELIVERY. THEREFORE, IF YOU PURCHASE AN ITEM UNTIL 1PM DURING WORKING DAYS (MONDAY-FRIDAY) YOUR ITEM WILL DISPATCHED THE SAME DAY AND WILL BE DELIVERED TO YOU ON THE NEXT DAY. IF YOU PURCHASE AN ITEM FROM US AFTER 1PM, YOUR ITEM WILL BE DISPATCHED ON THE NEXT DAY AND WILL BE DELIVERED TO YOU ON THE DAY AFTER. ALL ITEMS PURCHASED AFTER 1PM ON FRIDAY AFTERNOON, WILL BE DISPATCHED ON MONDAY BEFORE 12PM.ALL INTERNATIONAL BUYERS, PLEASE NOTE YOUR ITEM WILL BE DELIVERED TO YOU BETWEEN 4-6 WORKING DAYS. PLEASE, DO NOT HESITATE TO CONTACT ME AND ASK FOR QUOTES FOR POSTAGE CHARGES, AFTER YOU SPECIFY YOUR COUNTRY. ALL INTERNATIONAL BUYERS, PLEASE NOTE, PRODUCTS PURCHASED FROM THE UK ARE SUBJECT TO IMPORT CUSTOM CHARGES. CUSTOM CHARGES ARE DIFFERENT FOR ALL EUROPEAN COUNTRIES, SO PLEASE CALCULATE YOUR CUSTOM CHARGES, BEFORE PURCHASING AN ITEM, TO AVOID ANY MISUNDERSTANDINGS REGARDING THE FINAL PRICE. PLEASE NOTE, OUR PRICES DO NOT INCLUDE CUSTOM CHARGES REQUIRED BY YOUR CUSTOMS. PLEASE NOTE, YOU ARE RESPONSIBLE TO PAY FOR ANY IMPORT CUSTOM CHARGES, IN ORDER TO RECEIVE YOUR ITEM.

Listed is a used MMC4 cartridge from a dealer testing supply bin. The needle looks pretty good purely from visual inspection but internal parts condition (cantilever, etc) cant be determined. Item is being sold as-is, untested (no turn table in my possession) in vintage condition.

Bang & Olufsen Beogram RX2 Type 5833 Turntable w/MMC4 Cartridge Tested Working. Tested and working, please note the last 2 pictures which shows cracks. Does not affect use.

PERFECT CONDITION SEE PICTURES Normal 0 21 false false false FR X-NONE X-NONE BANG & OLUFSEN CARTRIDGE MMC4 MOVING COIL CARTRIDGE FOR B&O THE MMC CARTRIDGE WAS A STUNNING EXAMPLE OF BANG & OLUFSENS CONTINUAL INSISTENCE ON QUALITY. MMC STANDS FOR MOVING MICRO-CROSS, A DESIGN PRINCIPLE WHICH RESULTED IN THE COMPLETE INTEGRATION OF ALL COMPONENTS - STYLUS, CANTILEVER, COILS AND MAGNET BECAME THE PATENTED MOVING-IRON PRINCIPLE UPON WHICH ALL B&O CARTRIDGES WERE BASED. THE MMC PRINCIPLE GAVE THE FINEST GROOVE SEPARATION AND PRODUCED EXTREMELY ACCURATE SOUND REPRODUCTION OF RECORDS. THE UNIQUE MMC SYSTEM EMPLOYED A CROSS-SHAPED ARMATURE WHICH, AMONG OTHER ADVANTAGES, GUARANTEED EXCEPTIONAL STEREO SEPARATION SINCE EACH CHANNEL MOVES ON A SEPARATE AXIS.PARFAIT ÉTAT VOIR PHOTOS CARTOUCHE BANG & OLUFSEN CARTOUCHE BOBINE MOBILE MMC4 POUR B&O LA CARTOUCHE MMC EST UN EXEMPLE ÉTONNANT DE LINSISTANCE CONTINUE DE BANG & OLUFSEN SUR LA QUALITÉ. MMC SIGNIFIE MOVING MICRO-CROSS, UN PRINCIPE DE CONCEPTION QUI A ENTRAÎNÉ LINTÉGRATION COMPLÈTE DE TOUS LES COMPOSANTS - LE STYLET, LE CANTILEVER, LES BOBINES ET LAIMANT EST DEVENU LE PRINCIPE BREVETÉ DE MOVING-IRON SUR LEQUEL TOUTES LES CARTOUCHES B&O SONT BASÉES. LE PRINCIPE MMC A DONNÉ LA MEILLEURE SÉPARATION DES RAINURES ET A PRODUIT UNE REPRODUCTION SONORE EXTRÊMEMENT PRÉCISE DES ENREGISTREMENTS. LE SYSTÈME MMC UNIQUE A EMPLOYÉ UNE ARMATURE EN FORME DE CROIX QUI, ENTRE AUTRES AVANTAGES, GARANTIT UNE SÉPARATION STÉRÉO EXCEPTIONNELLE CAR CHAQUE CANAL SE DÉPLACE SUR UN AXE DIFFÉRENT. FABRIQUÉS : 1984 - 1997 DESIGNER: COULEURS : ARGENT ET NOIR CELLE-CI POURRAIT ÊTRE CONSIDÉRÉE COMME LA CARTOUCHE STANDARD DE LA GAMME ET ÉTAIT ÉQUIPÉE EN STANDARD SUR DE NOMBREUX PLATEAUX. DESCRIPTION : DIAMANT ELLIPTIQUE À LIE DE TITANE, MONTÉ SUR UN CANTILEVER CONIQUE EN ALUMINIUM FORCE DE SUIVI - GRAMMES : 1,2 STYLET DIAMANT : ELLIPTIQUE TUBE EN PORTE-À-FAUX : TAPER. ALUN. MASSE EFFICACE DE LA POINTE MG : 0,4 CONFORMITÉ MG/MN : 25 FREQUENCE 20-20000 HZ=/-DB: 2,5 SÉPARATION CANAUX 1000>DB : 22 SORTIE MV/CM/S RMS : 0,6 GRAMME DE POIDS DE LA CARTOUCHE : 1,6 MANUFACTURED: 1984 - 1997 DESIGNER: COLOURS: SILVER AND BLACK THIS COULD BE REGARDED AS THE STANDARD CARTRIDGE IN THE RANGE AND WAS FITTED TO MANY DECKS AS STANDARD. DESCRIPTION: TITANIUM-BONDED ELLIPTICAL DIAMOND, MOUNTED ON A TAPERED ALUMINIUM CANTILEVER TRACKING FORCE - GRAMS: 1.2 DIAMOND STYLUS: ELLIPTICAL CANTILEVER TUBE: TAP. ALUM. EFFECTIVE TIP MASS MG: 0,4 COMPLIANCE MG/MN: 25 FREQUENCY 20-20000 HZ=/-DB: 2,5 CHANNEL SEPARATION 1000>DB: 22 OUTPUT MV/CM/S RMS: 0,6 CARTRIDGE WEIGHT GRAM: 1,6

PERFECT CONDITION SEE PICTURES Normal 0 21 false false false FR X-NONE X-NONE BANG & OLUFSEN CARTRIDGE MMC4 MOVING COIL CARTRIDGE FOR B&O THE MMC CARTRIDGE WAS A STUNNING EXAMPLE OF BANG & OLUFSENS CONTINUAL INSISTENCE ON QUALITY. MMC STANDS FOR MOVING MICRO-CROSS, A DESIGN PRINCIPLE WHICH RESULTED IN THE COMPLETE INTEGRATION OF ALL COMPONENTS - STYLUS, CANTILEVER, COILS AND MAGNET BECAME THE PATENTED MOVING-IRON PRINCIPLE UPON WHICH ALL B&O CARTRIDGES WERE BASED. THE MMC PRINCIPLE GAVE THE FINEST GROOVE SEPARATION AND PRODUCED EXTREMELY ACCURATE SOUND REPRODUCTION OF RECORDS. THE UNIQUE MMC SYSTEM EMPLOYED A CROSS-SHAPED ARMATURE WHICH, AMONG OTHER ADVANTAGES, GUARANTEED EXCEPTIONAL STEREO SEPARATION SINCE EACH CHANNEL MOVES ON A SEPARATE AXIS. MANUFACTURED: 1984 - 1997 DESIGNER: COLOURS: SILVER AND BLACK THIS COULD BE REGARDED AS THE STANDARD CARTRIDGE IN THE RANGE AND WAS FITTED TO MANY DECKS AS STANDARD. DESCRIPTION: TITANIUM-BONDED ELLIPTICAL DIAMOND, MOUNTED ON A TAPERED ALUMINIUM CANTILEVER TRACKING FORCE - GRAMS: 1.2 DIAMOND STYLUS: ELLIPTICAL CANTILEVER TUBE: TAP. ALUM. EFFECTIVE TIP MASS MG: 0,4 COMPLIANCE MG/MN: 25 FREQUENCY 20-20000 HZ=/-DB: 2,5 CHANNEL SEPARATION 1000>DB: 22 OUTPUT MV/CM/S RMS: 0,6 CARTRIDGE WEIGHT GRAM: 1,6

Bang & Olufsen MMC4 cartridge. Good working condition. Please check the pictures for more information.

Bang & Olufsen MMC4 Cartridge/Stylus Newly refurbished Bang & Olufsen MMC4. Refurbished suspension with a new bonded elliptical diamond, mounted on an ultralight hollow tube aluminium cantilever. Checked on a spectrum analyser, delicate, accurate and precise. Tracking perfectly @1.2g. Buy with confidence, see my feedback it speaks volumes. MMC4 Specifications : Bonded elliptical diamond, mounted on an ultralight aluminium cantilever Tracking force 1.2 gram Elliptical diamond stylus Cantilever tube - aluminium Effective tip mass 0.5 mg Compliance mg/mN 25 Frequency response 20-20,000 Hz +/- 2.5 dB Channel separation 1000>dB 22 Output mV/cm/s RMS 0.6 Cartridge weight 1.6 grams Any questions just get in touch, Id be glad to help.

Bang & Olufsen MMC4000 Stylus CartridgeSelling used in very good condition , removed from beogram 4002 ONE OWNER Please look at the pictures for cosmetic conditionFINAL SALE NO RETURN NO REFUNDSALES TAX WILL BE CHARGED

Item untested. Selling as/is. If cartridge doesn't work you can return for free.

PERFECT CONDITION SEE PICTURES Normal 0 21 false false false FR X-NONE X-NONE BANG & OLUFSEN CARTRIDGE MMC4 MOVING COIL CARTRIDGE FOR B&O THE MMC CARTRIDGE WAS A STUNNING EXAMPLE OF BANG & OLUFSENS CONTINUAL INSISTENCE ON QUALITY. MMC STANDS FOR MOVING MICRO-CROSS, A DESIGN PRINCIPLE WHICH RESULTED IN THE COMPLETE INTEGRATION OF ALL COMPONENTS - STYLUS, CANTILEVER, COILS AND MAGNET BECAME THE PATENTED MOVING-IRON PRINCIPLE UPON WHICH ALL B&O CARTRIDGES WERE BASED. THE MMC PRINCIPLE GAVE THE FINEST GROOVE SEPARATION AND PRODUCED EXTREMELY ACCURATE SOUND REPRODUCTION OF RECORDS. THE UNIQUE MMC SYSTEM EMPLOYED A CROSS-SHAPED ARMATURE WHICH, AMONG OTHER ADVANTAGES, GUARANTEED EXCEPTIONAL STEREO SEPARATION SINCE EACH CHANNEL MOVES ON A SEPARATE AXIS.PARFAIT ÉTAT VOIR PHOTOS CARTOUCHE BANG & OLUFSEN CARTOUCHE BOBINE MOBILE MMC4 POUR B&O LA CARTOUCHE MMC EST UN EXEMPLE ÉTONNANT DE LINSISTANCE CONTINUE DE BANG & OLUFSEN SUR LA QUALITÉ. MMC SIGNIFIE MOVING MICRO-CROSS, UN PRINCIPE DE CONCEPTION QUI A ENTRAÎNÉ LINTÉGRATION COMPLÈTE DE TOUS LES COMPOSANTS - LE STYLET, LE CANTILEVER, LES BOBINES ET LAIMANT EST DEVENU LE PRINCIPE BREVETÉ DE MOVING-IRON SUR LEQUEL TOUTES LES CARTOUCHES B&O SONT BASÉES. LE PRINCIPE MMC A DONNÉ LA MEILLEURE SÉPARATION DES RAINURES ET A PRODUIT UNE REPRODUCTION SONORE EXTRÊMEMENT PRÉCISE DES ENREGISTREMENTS. LE SYSTÈME MMC UNIQUE A EMPLOYÉ UNE ARMATURE EN FORME DE CROIX QUI, ENTRE AUTRES AVANTAGES, GARANTIT UNE SÉPARATION STÉRÉO EXCEPTIONNELLE CAR CHAQUE CANAL SE DÉPLACE SUR UN AXE DIFFÉRENT. FABRIQUÉS : 1984 - 1997 DESIGNER: COULEURS : ARGENT ET NOIR CELLE-CI POURRAIT ÊTRE CONSIDÉRÉE COMME LA CARTOUCHE STANDARD DE LA GAMME ET ÉTAIT ÉQUIPÉE EN STANDARD SUR DE NOMBREUX PLATEAUX. DESCRIPTION : DIAMANT ELLIPTIQUE À LIE DE TITANE, MONTÉ SUR UN CANTILEVER CONIQUE EN ALUMINIUM FORCE DE SUIVI - GRAMMES : 1,2 STYLET DIAMANT : ELLIPTIQUE TUBE EN PORTE-À-FAUX : TAPER. ALUN. MASSE EFFICACE DE LA POINTE MG : 0,4 CONFORMITÉ MG/MN : 25 FREQUENCE 20-20000 HZ=/-DB: 2,5 SÉPARATION CANAUX 1000>DB : 22 SORTIE MV/CM/S RMS : 0,6 GRAMME DE POIDS DE LA CARTOUCHE : 1,6 MANUFACTURED: 1984 - 1997 DESIGNER: COLOURS: SILVER AND BLACK THIS COULD BE REGARDED AS THE STANDARD CARTRIDGE IN THE RANGE AND WAS FITTED TO MANY DECKS AS STANDARD. DESCRIPTION: TITANIUM-BONDED ELLIPTICAL DIAMOND, MOUNTED ON A TAPERED ALUMINIUM CANTILEVER TRACKING FORCE - GRAMS: 1.2 DIAMOND STYLUS: ELLIPTICAL CANTILEVER TUBE: TAP. ALUM. EFFECTIVE TIP MASS MG: 0,4 COMPLIANCE MG/MN: 25 FREQUENCY 20-20000 HZ=/-DB: 2,5 CHANNEL SEPARATION 1000>DB: 22 OUTPUT MV/CM/S RMS: 0,6 CARTRIDGE WEIGHT GRAM: 1,6

Soundsmith Phonograph Cartridge SMMC4. Open box cartridge- attached once to turntable. It’s been in the box on a shelf for almost two years. 100% works as well as it did when it left the Soundsmith factory. Please use this link to make sure it will be suitable for your need before you buy.https://www.sound-smith.com/bo-turntable-and-cartridge-lookup-chart

BANG & OLUFSEN B&O MMC4 BeoGram Turntable Cartridge.

Bang & Olufsen MMC4 Cartridge/Stylus Newly refurbished Bang & Olufsen MMC4. Refurbished suspension with a new bonded elliptical diamond, mounted on an ultralight hollow tube aluminium cantilever. Checked on a spectrum analyser, delicate, accurate and precise. Tracking perfectly @1.2g. Buy with confidence, see my feedback it speaks volumes. MMC4 Specifications : Bonded elliptical diamond, mounted on an ultralight aluminium cantilever Tracking force 1.2 gram Elliptical diamond stylus Cantilever tube - aluminium Effective tip mass 0.5 mg Compliance mg/mN 25 Frequency response 20-20,000 Hz +/- 2.5 dB Channel separation 1000>dB 22 Output mV/cm/s RMS 0.6 Cartridge weight 1.6 grams Any questions just get in touch, Id be glad to help.

Original Bang & Olufsen MMC4 Cartridge/Stylus Uk stock ready for dispatch NOW Sounds great Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specification Tracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantileverTracking force - grams 1.2Diamond Stylus EllipticalCantilever tube. Tap. alum. .Effective tip mass mg 0,4Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2,5Channel separation 1000>dB 22Output mV/cm/s RMS 0,6Cartridge weight gram 1,6 Courtesy of Beoworld.org 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.

Original Bang & Olufsen MMC4 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org 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 cartridge If 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.

Original Bang & Olufsen MMC4 Cartridge/Stylus Uk stock ready for dispatch NOW Sounds great Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specification Tracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantileverTracking force - grams 1.2Diamond Stylus EllipticalCantilever tube. Tap. alum. .Effective tip mass mg 0,4Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2,5Channel separation 1000>dB 22Output mV/cm/s RMS 0,6Cartridge weight gram 1,6 Courtesy of Beoworld.org 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.

Original Bang & Olufsen MMC4 Cartridge/StylusUk StockSounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org 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 cartridge If 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.

Original Bang & Olufsen MMC4 Cartridge/StylusUk stock ready for dispatch NOW Sounds greatChecked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specificationTracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantilever Tracking force - grams 1.2 Diamond Stylus Elliptical Cantilever tube. Tap. alum. . Effective tip mass mg 0,4 Compliance mg/mN 25 Frequency 20-20000 Hz=/-dB 2,5 Channel separation 1000>dB 22 Output mV/cm/s RMS 0,6 Cartridge weight gram 1,6 Courtesy of Beoworld.org 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 cartridge If 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.

Original Bang & Olufsen MMC4 Cartridge/Stylus Uk stock ready for dispatch NOW Sounds great Checked on a spectrum analyser, delicate, accurate and precise matching perfectly to its published specification Tracking perfectly with 1.2gram vertical tracking force MMC4 Specifications Description Titanium-bonded elliptical diamond, mounted on a tapered aluminium cantileverTracking force - grams 1.2Diamond Stylus EllipticalCantilever tube. Tap. alum. .Effective tip mass mg 0,4Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2,5Channel separation 1000>dB 22Output mV/cm/s RMS 0,6Cartridge weight gram 1,6 Courtesy of Beoworld.org 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.

For sale is a Bang & Olufsen MMC4 Cartridge with Stylus in good working condition. Please note one side of the front pointy black area on the cartridge is partially broken as seen in photos. Stylus is intact and in good working order. Please review all pics as they’re all part of the description. I WILL NOT SHIP TO ALASKA, HAWAII, CANADA OR PUERTO RICO, P.O BOXES, FPO OR APO. PLEASE PROVIDE A PHYSICAL ADDRESS.