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When it comes to portable high-fidelity sound, audiophiles often compare the Sennheiser HD 660S2 and the Oppo PM-3. Both headphones are renowned for their sound quality, but they cater to slightly different preferences and use cases. This article provides a detailed performance breakdown of these two models to help you make an informed decision.
Design and Build Quality
The Sennheiser HD 660S2 features a robust open-back design with a lightweight aluminum frame, making it comfortable for extended listening sessions. Its ear cups are large and plush, providing a good seal and comfort. The Oppo PM-3, on the other hand, boasts a closed-back, foldable design with a sleek, portable form factor. Its ear cups are smaller, and the build emphasizes portability without sacrificing durability.
Sound Signature and Performance
Sennheiser HD 660S2
The HD 660S2 offers a balanced, natural sound profile with a slight emphasis on the midrange. It excels in delivering detailed vocals and instruments, making it ideal for critical listening. The open-back design provides a wide soundstage, creating an immersive listening experience. Bass response is deep and controlled, while treble remains clear without harshness.
Oppo PM-3
The Oppo PM-3 features a warm, slightly bass-heavy sound signature with a focus on smoothness and musicality. Its closed-back design helps isolate external noise, which is advantageous for portable use. The soundstage is narrower compared to the HD 660S2 but still provides a good sense of space. Treble is soft, and the overall sound is more forgiving, suitable for casual listening on the go.
Comfort and Portability
The HD 660S2 offers exceptional comfort for home use, with plush ear pads and an adjustable headband. However, its open-back design and size make it less portable. The Oppo PM-3 is designed with portability in mind, featuring a foldable structure and a compact form factor. Its lightweight design ensures comfort during extended portable listening sessions.
Connectivity and Compatibility
The HD 660S2 is a wired headphone that requires a good quality amplifier or DAC for optimal performance. It is compatible with a wide range of audio sources via standard 3.5mm or 6.3mm jacks. The Oppo PM-3 is also wired, designed primarily for portable devices, and pairs well with smartphones and portable DACs. Its detachable cable adds convenience for travel.
Price and Value
Pricing varies depending on the retailer and region. The Sennheiser HD 660S2 tends to be more expensive, reflecting its audiophile-grade components and open-back design. The Oppo PM-3 offers a more affordable option for portable high-fidelity sound, with a focus on convenience and mobility. Both headphones provide excellent value within their respective categories.
Conclusion
The choice between the Sennheiser HD 660S2 and the Oppo PM-3 depends on your primary use case. If you prioritize studio-quality sound and immersive listening at home, the HD 660S2 is the superior choice. For portable, on-the-go listening with good sound quality and convenience, the Oppo PM-3 is an excellent option. Both offer high-fidelity experiences tailored to different needs.