Hifiman HM-801   Disclaimer: This review is just a reflection of my opinions and experience.       Specifications: Modular Design: Modular Amplifier Bay (Named GanQi Bay) and 14.8 volt Lithium Polymer Battery Bay Memory: SDHC Card  DAC function: Coaxial (44.1kHz, 96 kHz) , USB DAC (16bit, 48kHz) DAC Chip: Burr-Brown PCM1704U-K (for Player, Coaxial and USB) ; Op-Amp: OPA627 Size: 114 mm *78mm * 25.5 mm or 4.49 * 3.07 * 1.00 Inch Output: Headphone out; Line out Exchangeable Module Battery Life : 7 to 8 hours (Depending upon...

Westone ES5 Disclaimer:  This review is just a reflection of my opinions and experience.   Specifications: Sensitivity: 120 dB SPL/mW Frequency response: 8 Hz - 20 kHz Impedance: 20 ohm Speaker Technology: Five balanced armature drivers with a passive three-way crossover Features : Replaceable cable, one year parts and labor warranty on internal components, 25 dB average noise attenuation, user manual and deluxe carrying case Equipment Used In This Review: Hifiman HM-801 iPod Touch 3G iPhone 4 Sansa Fuze Macbook Pro  ...