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Bang & Olufsen MMC3 Cartridge - with B&O Stylus W Mount - Tested and Working
End: 20.03. 2024 18:40:28 on Wednesday
- Condition: Used
- Price: 179.03 EUR
- Status: unsold
- Item number: 285763139755
- Bids: 0
- Seller: roehlerich (2273|99.3%)
- Seller information: non commercial
- Item location: Norristown, Pennsylvania
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
From Denon DP-47F. Tested and working. Hours unknown.
Excellent B&O Bang & Olufsen MMC3 Cartridge Guaranteed
End: 12.03. 2024 15:51:31 on Tuesday
- Condition: Used
- Price: 210.17 EUR
- Status: sold
- Item number: 116099734416
- Seller: amcweb (6322|99.8%)
- Seller information: Commercial (with base shop)
- Item location: Saint Louis, Missouri
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
Excellent condition, see photos. Guaranteed to work as it should or your money back. Free shipping.
Bang & Olufsen MMC3 Cartridge - with B&O Stylus - Tested and Working
End: 10.03. 2024 15:00:33 on Sunday
- Condition: Used
- Price: 183.95 EUR
- Status: sold
- Item number: 364774628872
- Seller: jernew_3063 (111|100.0%)
- Seller information: non commercial
- Item location: Round Rock, Texas
- Ships to: US
- Shipping: 1,0 EUR
- on EBAY
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Description
B&O MMC 3 Cartridge. Tested and working.
Bang & Olufsen MMC3 Cartridge - with B&O Stylus - Tested and Working
End: 02.03. 2024 22:43:43 on Saturday
- Condition: Used
- Price: 239.0 USD
- Status: 28T 21:59:12
- Item number: 176220567023
- Seller: (|%)
- Seller information:
- Item location: Hollidaysburg,PA,USA
- Ships to:
- Shipping: 6,95 USD
- on EBAY
Bang & Olufsen Beogram RX2 Turntable w/MMC3 Cartridge AS-IS *Must Read* EB-14432
End: 26.02. 2024 17:03:55 on Monday
- Condition: For parts or not working
- Price: 170.61 EUR
- Status: sold
- Item number: 176231844988
- Seller: tracktowntreasures (12147|99.2%)
- Seller information: Commercial (with base shop)
- Item location: Springfield, Oregon
- Ships to: Worldwide
- Shipping: 0,0 EUR
- on EBAY
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Description
Bang & Olufsen Beogram RX2 Turntable w/MMC3 Cartridge *Must Read* - AS-IS - NO RETURNS - As this item is being sold AS-IS, this item should be considered to have defects, and we have done our best to disclose them. In the case of an item that doesnt function as intended, there is a chance that other flaws, that we are not aware of, may be present. Please take that into consideration when purchasing. Used, but still in very good condition. LIMITED TESTING, and in working order, with the cartridge is need of repair or replacement. Does not include manual, or original packaging. The testing was limited due to the rarity of the cartridges this unit uses. It has a Bang & Olufsen MMC 3 cartridge installed, but it sounds a bit off when playing. For this reason we are selling this unit in the AS-IS/Parts Repair condition. Units sold in an AS-IS/PARTS REPAIR condition are not returnable. Unit shows some wear and scratches, but overall is still in very good condition. (SEE PICTURES). The buttons all function as theyre supposed to. Model #: BEOGRAM RX 2Serial #: 05071464 ELECTRONICS DISCLAIMER: Due to the nature of electronics, Serial numbers have been photographed and recorded, and tamper proof labels are used to prevent tampering. We strive to take excellent pictures and describe items as thoroughly and accurately as possible, but please dont hesitate to ask any questions that you may have. Thanks for looking!
Soundsmith SMMC3 B&O MMC3 REPLACEMENT PHONO CARTRIDGE
End: 27.01. 2024 21:55:50 on Saturday
- Condition: Used
- Price: 306.48 EUR
- Status: unsold
- Item number: 235385083218
- Seller: jyi007 (101|100.0%)
- Seller information: non commercial
- Item location: Acton, Massachusetts
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
Recent purchase of my Linn LP12 came with Soundsmith SMMC 3 cartridge which the seller added new with adapter to fit standard head shell. My prefer to use my own Denon DL 110 HOMC cartridge so I’m trying to sell this like new condition cartridge. It’s in almost perfect condition with original case. Special adapter mount is included so it can be fitted to all types of head shell beyond the B&O turntables.
Bang & Olufsen Beogram 5000 Turntable -- with B&O MMC3 Cartridge
End: 18.01. 2024 20:08:11 on Thursday
- Condition: Used
- Price: 425.0 USD
- Status: 30T 14:45:57
- Item number: 176113209282
- Seller: (|%)
- Seller information:
- Item location: Hollidaysburg,PA,USA
- Ships to:
- Shipping: 0,0 USD
- on EBAY
-
Description
Bang & Olufsen Beogram 5000 Turntable Type 5804 -- No cartridge This B&O Turntable is Working Properly, and sounding Great, with no issues. (See video to see operation and hear the sound). Cabinet and Dust Cover condition is Superb, almost perfect actually. Dust cover light works, and comes on when the cover is raised. Please be aware that B&O turntables use a DIN Connection to the amp (RCA adapters are available here on eBay). Turntable will be safely packaged for shipping, suspension locked down and double boxed. Local pickup also available. No sales to Alaska or Hawaii. Only the turntable is included in this listing, NO cartridge or anything else.
Bang & Olufsen MMC3 Tonabnehmer / Cartridge gebraucht / used
End: 18.01. 2024 17:55:31 on Thursday
NEWLY REBUILT B&O BANG & OLUFSEN MMC5 CARTRIDGE REPLACES MMC3 MMC4
End: 12.01. 2024 18:40:38 on Friday
- Condition: Vom Verkäufer generell überholt
- Price: 277.36 EUR
- Status: unsold
- Item number: 305171930318
- Seller: audio-select (3884|99.6%)
- Seller information: Commercial (with base shop)
- Item location: Ingleside, Illinois
- Ships to: US
- Shipping: 9,75 EUR
- on EBAY
Bang and Olufsen Beogram TX2 Turntable Type 5913 Record Player MMC3
End: 02.12. 2023 03:07:17 on Saturday
- Condition: Used
- Price: 174.6 EUR
- Status: sold
- Item number: 186036578940
- Seller: chrisnteresa54 (981|99.7%)
- Seller information: Commercial (with base shop)
- Item location: Jefferson City, Tennessee
- Ships to: US
- Shipping: 55,87 EUR
- on EBAY
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Description
Bang and Olufsen Beogram TX2 Turntable Type 5913 Record Player MMC3 This item is in very good preowned condition. See photos for details. This item has been tested and appears to work. It powers on, turn table moves, needle automatically lowers onto record. I was not able to test for audio as I dont have speakers for it. Buy today we ship tomorrow. Thank you for viewing. We appreciate your business.
BANG & OLUFSEN B&O MMC3 Cartridge WORKING BUT NEEDING REPAIR
End: 28.11. 2023 23:29:01 on Tuesday
- Condition: For parts or not working
- Price: 74.99 USD
- Status: 30T 18:46:43
- Item number: 325866269051
- Seller: (|%)
- Seller information:
- Item location: McKinney,TX,USA
- Ships to:
- Shipping: 0,0 USD
- on EBAY
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Description
Up for sale is a Bang and Olufsen MMC 3 phono cartridge that is in need of some repair. When plugged into a B&O turntable sound comes out of both channels but loud passages on the recording have a definite distortion in both channel. I have cleaned and inspected the tip using a jewelers loop and the tip looks perfect. I have also checked the resistance across both channels using an ohm meter and found them to read 802 and 797 ohms, clearly within specs. The cantilever also appears to be straight and undamaged. My guess is that the cantilever suspension is the culprit and that is beyond my abilities to repair, but I know it can be done according to the literature. Please note that the small plastic stylus guard is also missing from the unit. I am selling this FOR PARTS OR REPAIR, NO RETURNS.
Bang & Olufsen 1/2" Mount Adapter Kit for MMC1 MMC2 MMC3 MMC4 MMC5 Cartridge
End: 01.11. 2023 21:59:56 on Wednesday
- Condition: New: Other
- Price: 48.88 USD
- Status: 30T 22:59:31
- Item number: 266435742628
- Seller: (|%)
- Seller information:
- Item location: Lawrence,KS,USA
- Ships to:
- Shipping: 0,0 USD
- on EBAY
B&O 1/2" Mount Adapter Kit for MMC1 MMC2 MMC3 MMC4 and MMC5 Cartridge
End: 25.09. 2023 14:42:36 on Monday
- Condition: Used
- Price: 41.0 EUR
- Status: sold
- Item number: 276037822950
- Seller: midwest_hobby_and_craft (1321|100.0%)
- Seller information: Commercial (with base shop)
- Item location: Topeka, Kansas
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
Got this on a Yamaha… hoping it can find a new home. The cartridge is included but has a bad stylus
Bang & Olufsen MMC3 MMC4 cartridges and Spare Parts
End: 24.09. 2023 03:30:12 on Sunday
- Condition: Used
- Price: 76.78 EUR
- Status: sold
- Item number: 186083028439
- Bids: 5
- Seller: squirrelsandwich (876|100.0%)
- Seller information: non commercial
- Item location: Leominster, Massachusetts
- Ships to: US
- Shipping: 0,0 EUR
- on EBAY
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Description
2 cartridges and parts as shown. Untested from an estate sale.
BANG & OLUFSEN BEOGRAM RX 5773 TURNTABLE + MMC3 CARTRIDGE Works Perfectly
End: 07.09. 2023 14:08:17 on Thursday
- Condition: Used
- Price: 96.81 EUR
- Status: sold
- Item number: 145272905087
- Bids: 3
- Seller: rustyst (1566|100.0%)
- Seller information: non commercial
- Item location: Danvers, Massachusetts
- Ships to: US
- Shipping: 88,73 EUR
- on EBAY
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Description
Turntable works perfectly, original MMC3 cartridge is in excellent shape. Dust cover has no cracks and minor swirling. Continental USA shipping only
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 1800
End: 14.08. 2023 21:09:15 on Monday
- Condition: Used
- Price: 407.83 EUR
- Status: unsold
- Item number: 305029310793
- Seller: levharri_16 (572|98.5%)
- Seller information: non commercial
- Item location: Thetford
- Ships to: GB
- Shipping: 51,13 EUR
- on EBAY
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Description
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 1800.
Bang & Olufsen Beogram RX2 Type 5833 Turntable Working w/Bent MMC3 Cartridge
End: 02.08. 2023 01:44:10 on Wednesday
- Condition: Used
- Price: 228.55 EUR
- Status: unsold
- Item number: 166246653133
- Seller: lray4053 (432|98.4%)
- Seller information: non commercial
- Item location: New York, New York
- Ships to: US
- Shipping: 74,47 EUR
- on EBAY
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Description
There are some scuff marks on the dust cover. The turntable is otherwise in great condition. Bang & Olufsen cartridge MMC3 has a bent needle but is still usable.
BANG OLUFSEN MMC3 Stylus Cartridge B&O
End: 29.07. 2023 17:06:28 on Saturday
- Condition: Used
- Price: 279.69 EUR
- Status: unsold
- Item number: 134638222876
- Seller: habers1965 (32|100.0%)
- Seller information: non commercial
- Item location: Bournemouth
- Ships to: GB
- Shipping: 36,63 EUR
- on EBAY
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Description
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter In general used condition,comes as pictured.
Bang & Olufsen BeoGram 6500 Turntable ‘RIAA/MMC3 Cartridge/Clean/2nd list’
End: 22.07. 2023 08:24:32 on Saturday
- Condition: Used
- Price: 809.88 EUR
- Status: unsold
- Item number: 285285409742
- Seller: ishams*123 (1307|100.0%)
- Seller information: non commercial
- Item location: Mason, Ohio
- Ships to: Worldwide
- Shipping: 127,96 EUR
- on EBAY
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Description
This is a 2nd listing ((DIFFERENT UNIT) for Bang & Olufsen BeoGram 6500 Tangential Tracking Turntable with MMC3 Cartridge in 100% Functional and Cosmetically Clean condition, there are few very very minor imperfections that I’ve captured in pics. The Stylus sits on lead in cue and retracts back at Lead out cue. This is a RARE FINDING turntable.The Glass looking center piece is in great condition, the dust cover clear vinyl is in good condition with minor age related scuffs that I’ve cleaned but perhaps it could be buffed further. see pics in close proximity. The MMC3 Cartridge is in great shape and sounds awesome. This item will be packed with platter lockdown thru transporter screws, Cartridge will be placed in styrofoam box. The Tonearm will be rested over compressed foam. Internal of the dustcover will be airtight with bubble wrap. It’ll be shipped via FedEx Ground with declared value equal to purchase price. Buy it with confidence based on my rating and feedback. Please check my other listings too. Regards, Imran.
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 1800
End: 17.07. 2023 19:38:25 on Monday
- Condition: Used
- Price: 409.22 EUR
- Status: unsold
- Item number: 304989700020
- Seller: levharri_16 (553|98.5%)
- Seller information: non commercial
- Item location: Thetford
- Ships to: GB
- Shipping: 51,38 EUR
- on EBAY
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Description
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 1800.
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beogram 6500 5500 7000 8500 9000 4500
End: 14.07. 2023 11:13:22 on Friday
- Condition: Used
- Price: 360.1 EUR
- Status: unsold
- Item number: 266321185407
- Seller: musicuk (379|100.0%)
- Seller information: non commercial
- Item location: Herefordshire
- Ships to: GB
- Shipping: 44,88 EUR
- on EBAY
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Description
Original Bang & Olufsen MMC3 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 MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output 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.
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 3300
End: 14.07. 2023 11:13:22 on Friday
- Condition: Used
- Price: 360.1 EUR
- Status: unsold
- Item number: 266321185410
- Seller: musicuk (379|100.0%)
- Seller information: non commercial
- Item location: Herefordshire
- Ships to: GB
- Shipping: 44,99 EUR
- on EBAY
-
Description
Original Bang & Olufsen MMC3 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 MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output 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.
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 8002
End: 14.07. 2023 11:13:22 on Friday
- Condition: Used
- Price: 360.1 EUR
- Status: unsold
- Item number: 266321185414
- Seller: musicuk (379|100.0%)
- Seller information: non commercial
- Item location: Herefordshire
- Ships to: GB
- Shipping: 44,99 EUR
- on EBAY
-
Description
Original Bang & Olufsen MMC3 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 MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output 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.
BANG OLUFSEN MMC3 Stylus Cartridge B&O Beocenter 2200, 7700, 7007, Beogram 1800
End: 14.07. 2023 11:13:21 on Friday
- Condition: Used
- Price: 360.1 EUR
- Status: unsold
- Item number: 266321185430
- Seller: musicuk (379|100.0%)
- Seller information: non commercial
- Item location: Herefordshire
- Ships to: GB
- Shipping: 44,99 EUR
- on EBAY
-
Description
Original Bang & Olufsen MMC3 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 MMC3 Product SpecificationsDescription Nude elliptical diamond mounted on a tapered aluminium cantilever Tracking force - grams 1.2Diamond Stylus Elliptical nudeCantilever tube Tap. alum. .Effective tip mass mg 0,35Compliance mg/mN 25Frequency 20-20000 Hz=/-dB 2Channel separation 1000>dB 25Output 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.
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