Alpha Design Labs H118

Alpha Design Labs H118

I measured the performance of the ADL H118 headphones using a G.R.A.S. 43AG ear/cheek simulator, a Clio FW audio analyzer, a laptop computer running TrueRTA software with an M-Audio MobilePre USB audio interface, and a Musical Fidelity V-Can headphone amplifier. Measurements were calibrated for ear reference point (ERP) — roughly, the point in space where your palm intersects with the axis of your ear canal when you press your hand against your ear, and the place where the front of the headphone’s driver grille will sit when you wear the headphone….

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Sony XBA-H1 Earphones

Sony XBA-H1 Earphones

I measured the Sony XBA-H1s using a G.R.A.S. RA0045 ear simulator, a Clio FW audio analyzer, a laptop computer running TrueRTA software with an M-Audio MobilePre USB audio interface, and a Musical Fidelity V-CAN headphone amplifier. Measurements were calibrated for drum reference point (DRP): the equivalent of a headphone’s response at the surface of your eardrum. This is a “flat” measurement; no diffuse-field or free-field compensation curve was employed. Except as noted, I used the XBA-H1s’ medium standard tips. I experimented with the fit of the tips/earpieces by inserting and reinserting…

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Audeze LCD-3 Headphones

Audeze LCD-3 Headphones

I measured the performance of the Audeze LCD-3 headphones using a G.R.A.S. 43AG ear/cheek simulator, a Clio FW audio analyzer, a laptop computer running TrueRTA software with an M-Audio MobilePre USB audio interface, and a Musical Fidelity V-CAN headphone amplifier. Measurements were calibrated for ear reference point (ERP), which is roughly the point in space where your palm intersects with the axis of your ear canal when you press your hand against your ear, and the place where the front of the headphones’ driver grilles will sit when you wear…

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NAD Viso HP20 Earphones

NAD Viso HP20 Earphones

I measured the NAD Viso HP20s using a G.R.A.S. RA0045 ear simulator, a Clio 10 FW audio analyzer, a laptop computer running TrueRTA software with an M-Audio MobilePre USB audio interface, and a Musical Fidelity V-CAN headphone amplifier. Measurements were calibrated for drum reference point (DRP), the equivalent of the headphones’ response at the surface of the eardrum. This is a “flat” measurement; no diffuse-field or free-field compensation curve was employed. Except as noted, I used the HP20s’ medium standard eartips. I experimented with the fit of the eartips and…

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