Bang and Olufsen Beogram 4000 5215

The Bang & Olufsen Beogram 4000 Type 5215 (produced 1972–December 1974) is a pioneering tangential tracking turntable known for its innovative design and high-fidelity performance.

• Tracking System: Tangential (linear tracking) tonearm that moves the pickup straight toward the center of the record, minimizing tracking error and record wear.

• Pickup Cartridge: MMC 20 CL (Moving Micro Cross), with a Pramanik elliptical naked diamond stylus (5 x 17 µm).

• Speeds: 33 and 45 rpm, electronically controlled with automatic speed selection.

• Drive System: Belt drive powered by a synchronous electronically controlled motor.

• Wow and Flutter: Less than ±0.05% (DIN standard).

• Rumble: Weighted rumble > 65 dB, unweighted rumble > 46 dB.

• Speed Control Range: Greater than 6%.

• Cueing Control: Electronic air pressure damped for smooth pickup arm movement.

• Automatic Features: Automatic record size scanning, pickup movement control, and speed selection.

• Power Supply: Multi-voltage compatible (110–130 V and 220–240 V, 50–60 Hz), 40 W power consumption.

• Dimensions: Height 10 cm, Width 49 cm, Depth 38 cm.

• Weight: 12 kg.

• Design: Combines wood veneer, aluminum, and plastic with a double tonearm mechanism controlled electronically by a light spot reflected off the record.

Notable Features

• The tangential tonearm eliminates angular tracking errors typical of pivoted arms by moving the stylus parallel to the groove.

• The pickup arm is controlled electronically for precise movement and automatic operation.

• The Beogram 4000 was the first in a series of B&O turntables to feature this tangential tracking system.

• The stylus pressure is adjustable between 0 and 1.5 g, with a recommended pressure of 1 g.

• The turntable includes a stroboscopic scale light indicator for speed verification at 50 and 60 Hz.