Braun L 530 (c. 1976)
A 3-way sealed bookshelf speaker system from Braun’s 30-series, featuring soft dome midrange and tweeter with a 17.5 cm woofer developed with Dr. Kurt Mueller.
Overview
The Braun L 530 is a 3-way, 3-speaker bookshelf system designed as part of Braun’s 30-series. It uses an airtight (sealed) enclosure and features a 17.5 cm cone woofer with rubber surround, developed in collaboration with speaker engineer Dr. Kurt Mueller. The system includes a 5 cm soft dome midrange and a 1.9 cm soft dome tweeter, both with Terylene diaphragms coated in liquid rubber and hand-manufactured for precision. Drivers are independently mounted to minimize vibration transfer, and the front includes a removable silver-anodized aluminum grille. Available in walnut and white finishes, the L 530 was sold individually at ¥68,000 around 1976.
Specifications
| Woofer | 17.5 cm cone type |
| Midrange | 5 cm soft dome type |
| Tweeter | 1.9 cm soft dome type |
| Frequency response | 35 Hz to 25 kHz |
| Rated power | 35W |
| Maximum power | 70W |
| Impedance | 4 Ω |
| Crossover frequencies | 500 Hz, 4 kHz, 12dB/oct. |
| Internal volume | 8.5 liters |
| External dimensions | 225 mm (W) x 345 mm (H) x 180 mm (D) |
| Weight | 6.4 kg |
Design
The Braun L 530 features a hermetically sealed enclosure with independently mounted drivers to reduce vibration interference. The 17.5 cm woofer uses a rubber surround and was co-developed with Dr. Kurt Mueller. The 5 cm midrange and 1.9 cm tweeter use Terylene (polyester) diaphragms with liquid rubber coating, hand-manufactured for consistency. The front includes a removable silver-anodized aluminum grille, and the cabinet is available in walnut and white finishes.
Product Family
The L 530 is part of Braun’s 30-series speaker line. Variants include the Braun L 530 F and Braun L 530 S.
Market
A known issue with the Braun L 530 is deterioration of the foam speaker surrounds over time, often requiring re-foaming to restore performance.
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Related Models
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- Braun L-310 (1960)
- Akai AM-2850 (1975)
- Akai AP-206 (1975)
- Nakamichi BX-1 (1985)
- Acoustic Research research-ar-17 (1978)
- Acoustic Research AR-19 (1994)