Etymotic Research hf2 & hf5 in-ear headphones Specifications

Sidebar 1: Specifications

Description: Dynamic, diffuse-field-response, in-ear headphones with integral microphone (hf2) or without (hf5). Transducer type: single balanced armature. Frequency range: 20Hz–15kHz. Noise isolation: 35–42dB (depending on eartip used). Acoustic polarity: non-inverting. Sensitivity (1kHz): 105dB SPL for 100mV RMS input. Impedance: 16 ohms (nominal). Maximum output: 120dB SPL. Maximum continuous input: 550mV RMS. Microphone sensitivity (hf2): –40dBV/Pa.
Dimensions: Weight: 1.3oz (hf2), <0.5oz (hf5). Cable length: 4'.
Prices: $179 (hf2), $149 (hf5). Approximate number of dealers: "Available in Apple Stores,, and selected retailers."
Accessories: Filter-changing tool, two replacement filters, interchangeable tips, clip, carrying case.
Manufacturer: Etymotic Research, 61 Martin Lane, Elk Grove Village, IL 60007. Tel: (708) 228-0006. Fax: (708) 228-6836. Web:

pullman's picture

Thanks for a very good review.

Will Stereophile ever review the q-Jays or the t-Jays in-ear headphones? I've seen them compared with Etymotics and other in online reviews, but it would be nice to have Stereophile's take on them.