Bang & Olufsen Beogram 9000 - Linear Tracking Turntable w/MMC4 Phono Cartridge

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General:
Bang & Olufsen from Denmark are known for some of the most iconic designs in HiFi. Just look at this turntable! 

The Beogram 9000 is a linear tracking and automatic turntable. It will lift and queue up records at the touch of a button without the need to ever touch the tonearm.

This particular Beogram 9000 is fitted with its matching MMC4 Phono cartridge.

The MMC series are "Moving Micro Cross" cartridges developed by B&O. These cartridges are often difficult to find and are only increasing in value.

**Important Note - This Beogram 9000 requires an inexpensive and easy to locate B&O to RCA type audio out adapter if you plan on using this with non-B&O equipment. This adapter is not included with your purchase.

MMC4 Phono Cartridge
(1983-1997) Pickup. Elliptical diamond stylus, ETM 0.4 grams

The MMC 4 was the most popular model in this range. It gave good performance and was fitted in the factory to most of the smaller turntables and mid-range music centers. In addition to what the MMC5 offered, more refined performance was obtained by making the cantilever conical instead of straight, and reducing the effective tip mass by 0.1 grams.

SkyFi Cosmetic Notes:
Good condition overall. Slight scuff marks on acrylic cover and a mark shown on the platter.

SkyFi Technical Notes:
Tested and working as it should. Cartridge and table look lightly used.

Brand Background:
Bang & Olufsen (B&O) is a Danish high-end consumer electronics company that designs and manufactures audio products, television sets, and telephones. It was founded in 1925 by Peter Bang and Svend Olufsen, who designed a radio to work with alternating current, a product of significance at a time when most radios were still running on batteries.

Ownership:
Original Owner

Connections:
DIN style B&O output, Power Cord

General Sound:
Smooth, uncolored, undistorted natural and clean

Cosmetic Condition:
8/10 = Very Good. Excellent front faceplate, one minor flaw on chassis side or top. See our detailed rating description here.

Working Condition:
Working perfectly and calibrated on our custom turntable calibration stand.

Included:
Just the unit, cable and cartridge

Packing:
Will be packed using our highly developed in-house process and custom packing materials.Specs:
- Tonearm: Tangential with an optimum pivot point.
- Motor: Servo-controlled DC.
- Wow and Flutter (DIN): <0.06%.
- Rumble (weighted): >80 dB.
- Rumble (DIN unweighted): >55 dB.
- Speeds: 33 - 45 rpm.
- Speed Deviation: < +/- 0.2%.
- Power Consumption: <10 W.
- Weight: 12 kg.
- Type Numbers: 2522 (Mark 1), 2562 (Mark 2), 2572 (Mark 3).
- Designer: David Lewis.

Dimensions:
Dimensions (W x H x D): 42 x 7.5 x 32.5 cm.

Weight:
26 lbs.

Approximate Age:
1988

Link to Manual:
Click Here

Testing Process:
First we try to identify any mechanical issues, particularly in the tonearm bearings. We check for freedom of movement or any resistance on both the horizontal and vertical range. There is a quick test for this which involves placing the table on its front edge and allowing the arm to swing freely like a pendulum. We then make any adjustments necessary to achieve minimal resistance and sometimes adjust the bearing pressure. On gimbal tonearms we inspect the cone tip with a magnifier.

We then assess the platter speed using one of several methods, the most accurate being playing a test tone on a test record and measuring the frequency output with a frequency counter or oscilloscope. We also utilize test equipment to measure the wow and flutter to ensure it is within spec. We do this for all speeds available for that particular model (33 RPM, 45 RPM, 78 RPM).

Adjustments are then made to achieve proper speed which will vary depending on the turntable's drive design. Some require an adjustment of an internal or external potentiometer, some will require a pulley or motor adjustment. We also inspect the platter bearing to ensure it is properly lubricated, keeping in mind that some bearings don't require lubrication at all

We then inspect the power supply and address any issues with overworked capacitors, particularly on Linn and later Thorens machines which tend to need attention.

On fully mechanical vintage tables like the Thorens TD-124 and Garrard 301/401 we will go thought the entire mechanism. Then replace any worn parts and lubricate all components necessary to ensure smooth operation, speed change, and low mechanical noise. 

When fitting a new phono cartridge we will go through our detailed calibration process which can involve as many as 12 steps depending on the tonearm design. We perform this work on our custom turntable calibration rig which was developed in-house.

Some of these steps include:
• Pivot to Spindle Adjustment
• Tracking Force
• Anti-Skate
• Tonearm Height
• Lifter Height
• VTA (Vertical Tracking Angle)
• Azimuth
• Stylus Distance and Overhang

We then do a critical listening test using our test records and our test system to ensure proper sonics.