Bang & Olufsen CX100
The Bang & Olufsen CX100 is a high-quality bookshelf loudspeaker introduced in 1981 as part of B&O's acclaimed CX series. Designed during a period when the Danish company was redefining the intersection of audio engineering and industrial design, the CX100 exemplifies Bang & Olufsen’s commitment to sonic accuracy, build quality, and minimalist Scandinavian aesthetics. With its phase-linear crossover, magnetically shielded drivers, and elegant enclosure design, the CX100 was intended for integration into high-end home audio systems, particularly alongside other components from the Beosystem 5000 series.
Despite being over four decades old, the CX100 remains a respected model among vintage audio enthusiasts for its neutral sound signature and timeless visual appeal.
Specifications
| Feature | Specification |
| Model | CX100 |
| Year of Production | 1981–1986 |
| Type | 2-way bass reflex loudspeaker |
| Woofer | 8-inch paper cone with foam surround |
| Tweeter | 1-inch soft dome tweeter |
| Crossover | Phase-linear passive crossover |
| Impedance | 4 ohms |
| Sensitivity | 87 dB (2.83V/1m) |
| Frequency Response | 45 Hz – 22 kHz (±3 dB) |
| Recommended Amplifier | 25–100W per channel |
| Dimensions (H×W×D) | 380 × 220 × 280 mm (15.0 × 8.7 × 11.0 in) |
| Weight | 9.5 kg (20.9 lbs) per speaker |
| Enclosure Design | Sealed MDF cabinet with removable fabric grille |
| Finish Options | Black, walnut veneer |
Sound Signature
The CX100 delivers a balanced, detailed, and neutral sound characteristic of Bang & Olufsen’s engineering philosophy during the early 1980s. Its phase-linear crossover ensures precise time alignment between drivers, contributing to excellent stereo imaging and a wide soundstage. The 8-inch woofer provides controlled, articulate bass down to 45 Hz, while the soft dome tweeter offers smooth, non-fatiguing highs. The midrange is clear and uncolored, making the CX100 well-suited for vocal and acoustic music reproduction.
These speakers were designed to integrate seamlessly into B&O’s ecosystem, particularly with the Beosystem 5000, where their magnetically shielded drivers prevented interference with nearby televisions—a key feature in era-appropriate living room setups.
Historical Context
The CX100 was part of Bang & Olufsen’s CX series, a lineup launched in the early 1980s to offer high-fidelity audio components that combined advanced engineering with minimalist design. This period marked a high point for B&O’s global reputation, as the brand gained recognition not only for sound quality but also for its collaborations with industrial designers and architects.
The CX100 reflected the company’s belief that form and function should coexist harmoniously. Its clean lines, absence of visible branding, and removable grille emphasized understated elegance. Unlike many mass-market speakers of the time, the CX100 was engineered for long-term performance and aesthetic integration into modern interiors.
Maintenance and Restoration Tips
While the CX100 is well-built, age-related wear can affect performance. Here are common issues and recommended maintenance steps:
- Foam Surround Degradation: The most frequent issue is deterioration of the woofer’s foam surrounds, which can lead to distorted bass or complete failure. Refoaming by a specialist is a cost-effective restoration method.
- Crossover Capacitors: Electrolytic capacitors in the crossover network may dry out over time, altering tonal balance. Replacing these with modern equivalents can restore original performance.
- Grille and Cabinet Care: The fabric grilles are replaceable but original ones in good condition add value. Clean cabinets gently with a soft, dry cloth; avoid harsh cleaners that may damage the finish.
- Bi-Wiring: The CX100 features dual binding posts, allowing bi-wiring for improved dynamic range. Use high-quality speaker cables to maximize performance.
Collectibility and Market Value
The CX100 holds moderate collectible appeal, rated 6/10 due to its strong brand heritage, design significance, and solid performance. While not as rare as some limited B&O models, well-maintained pairs in original condition—especially in walnut veneer—command higher prices.
As of 2024, a pair of CX100 speakers typically sells for $150–$300, depending on condition, originality, and geographic market. Fully restored units with refoamed drivers and refreshed crossovers may fetch prices at the upper end of the range.
Conclusion
The Bang & Olufsen CX100 stands as a testament to 1980s Danish audio design—where precision engineering met minimalist aesthetics. While requiring occasional maintenance due to age, these speakers continue to deliver a refined, neutral listening experience. For vintage audio collectors and B&O enthusiasts, the CX100 remains a desirable piece of audio history, blending timeless design with enduring sonic integrity.
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