Turntable Details
Drive
Belt
Motor
Wow & Flutter %
0.025
Rumble [dB]
-75
Speed
33, 45
Dimensions [mm]
Platter Material
Platter Diameter [mm]
310.0
Total Weight [kg]
Tonearm
Year Built
22.00
Platter Weight [kg]
3.50
Plinth Material
Price
Additional information
Key Features
Drive System: Belt-drive with a precision FG servo DC motor.
Motor: 4-pole, 6-slot outer rotor brushless type, servo-controlled for precise speed control.
Speeds: 33.33 and 45 rpm.
Speed Variation: User-variable to ±6%.
Platter: 31 cm die-cast aluminum platter weighing 3.5 kg (including rubber mat), though some models have been upgraded with heavier gunmetal platters (e.g., RT-111G) for improved stability.
Wow and Flutter: Less than 0.025% WRMS.
Signal-to-Noise Ratio: Greater than 75 dB.
Tonearm: Designed for longer tonearms, such as the Micro Seiki MA-505L, which is a 12-inch arm. The BL-91L uses larger diameter armboards (A-1500 series) suitable for 282mm tonearms.
Base Construction: Multi-laminar natural wood finished with hand-rubbed natural ebony.
Dimensions: 600 x 472 x 186 mm (WHD) for the BL-91L.
Weight: 22 kg for the BL-91L.
Years of Manufacture: 1980 to 1984.
Made in: Japan.
Original Price: Approximately 1,450 DM.
Power Supply: Typically operates at 220VAC, requiring a transformer for use in regions with different voltage standards.
Power Consumption: 4 watts maximum.
Additional Details
The BL-91L is a high-end belt-drive turntable known for its precise speed control and robust build quality.
It features an exclusive oil-bath damping system to isolate the rotating assembly from mechanical resonances.
The turntable is highly regarded for its smooth operation and is often praised for its sound quality when paired with suitable tonearms.
The BL-91L is considered a rare and sought-after model, particularly for its compatibility with longer tonearms like the MA-505L.