Grado Labs, a family-owned company based in Brooklyn, New York, has long been a respected name in the world of audio. Renowned for their exceptional headphones and turntable cartridges, Grado is known for its unconventional approach to design and unwavering commitment to delivering high-fidelity sound. One intriguing aspect of Grado turntable cartridges is that they remain unshielded, which sets them apart from many other cartridge manufacturers. In this comprehensive article, we will explore the rationale behind Grado’s decision to produce unshielded cartridges and the implications for audio performance and compatibility.
The Concept of Shielding
In the context of turntable cartridges and audio equipment, shielding refers to the practice of using a metallic or conductive material to encase the internal components of the cartridge. The primary purpose of shielding is to block electromagnetic interference (EMI) and radio frequency interference (RFI), which can degrade the quality of the audio signal.
Grado Cartridges: Unconventional Pioneers
Grado Labs has been known for its unconventional and innovative approach to audio engineering. The company has always prioritized sound quality and has developed a loyal following among audiophiles. Grado turntable cartridges have eschewed conventional shielding practices, and there are a few reasons why:
1. Philosophy of Transparency: Grado’s approach to audio is rooted in transparency and a dedication to preserving the authenticity of the music. The company believes that shielding can sometimes interfere with the purity of the audio signal, introducing a sense of “coloration” to the sound. By not shielding their cartridges, Grado aims to maintain a direct and unaltered signal path.
2. Emphasis on Cartridge Design: Grado focuses on optimizing the design of their cartridges, including the stylus, cantilever, and magnets, to deliver exceptional performance. The company believes that by meticulously engineering these components, it can mitigate the effects of interference and provide high-quality sound without the need for shielding.
3. Balanced Engineering: Grado cartridges are designed with balanced output and low output impedance, factors that help minimize interference susceptibility. This, in combination with careful design and high-quality materials, ensures that Grado cartridges can deliver pristine sound without the need for shielding.
Implications for Audio Performance
Grado’s decision to produce unshielded cartridges has both advantages and disadvantages:
Advantages:
- Transparency: Unshielded cartridges can provide a more transparent and uncolored sound, making them ideal for audiophiles who value purity and clarity in their audio.
- Dynamic Range: Without the added components of shielding, unshielded cartridges may have a more extended dynamic range.
- Compatibility: Unshielded cartridges may be more compatible with a wider range of turntables, as they are less sensitive to tonearm capacitance.
Disadvantages:
- Susceptibility to Interference: Unshielded cartridges are more vulnerable to electromagnetic and radio frequency interference, especially in environments with electronic devices that emit interference.
- Reduced Performance in Noisy Environments: In settings with significant EMI or RFI, unshielded cartridges might not perform optimally, potentially resulting in background noise or distortion.
Conclusion
Grado’s decision to produce unshielded cartridges reflects their commitment to audio purity and transparency. While unshielded cartridges offer a direct and uncolored sound, they may not be suitable for every environment. The performance of Grado cartridges can be exceptional in well-controlled listening spaces, where interference is minimal.
For audiophiles and vinyl enthusiasts who prioritize unadulterated sound quality and are willing to take precautions to reduce interference, Grado’s unshielded cartridges can be a compelling choice. Ultimately, the decision to use an unshielded cartridge depends on the listening environment, personal audio preferences, and the specific turntable setup. Grado’s unconventional approach to cartridge design challenges the status quo in audio engineering, offering a unique perspective that resonates with those who value the pursuit of pure, unaltered sound.