Brand: Shure
The Shure M99 and M10 are two premier earphones in Shure's lineup for high-fidelity audio reproduction. However, they have some differences in features and specifications that set them apart:1. Driver: The Shure M99 features a single custom-designed Dynamic MicroDriver, while the M10 uses a dual-high Definitive™ MicroDriver system with two separate balanced armatures that work together to deliver a neutral and detailed sound signature.2. Frequency Response: The M99 has a frequency response of 6 Hz – 20 kHz, while the M10 delivers a flatter response of 18 Hz – 20 kHz.3. Impedance: The M99 has a lower impedance of 16 Ω, making it more compatible with portable devices like smartphones, whereas the M10 has a higher impedance of 30 Ω, requiring a dedicated headphone amplifier for optimum performance.4. Sensitivity: The M99 has a higher sensitivity of 123 dB SPL/mW, enabling it to produce a greater volume level from a given audio source, while the M10 has a lower sensitivity of 105 dB SPL/mW.5. Accessories: The M99 comes with a carry case, ¼" (6.3 mm) gold-plated adapter, and a cleaning cloth, whereas the M10 includes a hard carrying case, cleaning tool, and soft protective pouch. Overall, the M10 offers a more nuanced and detailed sound signature, while the M99 provides a broader frequency response and higher sensitivity for a more aggressive volume output. Both earphones offer exceptional sound quality and are well-suited to audiophiles who demand exceptional audio fidelity.