CES 2015: Obravo HAMT-1 Hybrid Driver Headphones
oBravo embraces the Heil Air Motion Transformer as the high frequency driver for their speakers, and have, as of about a year and a half ago, included a small driver of this type in their AMT/Dynamic hybrid driver headphones. Until this years CES, my experience with multi-driver, full-size headphones has been pretty poor. They just haven't seemed to deliver anything additional to that which a single driver headphone could.
I have visited oBravo on at least four separate occasions over the last two years. Initially, I thought they were pretty poor, but over time they do seem to have gotten quite a bit better. Their offering has now expanded to hybrids using a planar-magnetic tweeter with a dynamics driver taking care of the lower registers, and six models are currently available.
The line consists of three AMT/dynamic hybrids and three planar-magnetic/dynamic hybrids ranging in price from $700 to $1900. An additional and unusual feature of their top-of-the-line model (possibly others but I didn't get that cleared up before leaving the booth) is a tuning kit. Consisting of a variety of silicon plugs that vary the venting of the drivers internally, I was told they allow the user to custom tune the headphones to their personal preference.
Generally I continue to find the oBravo line somewhat colored sounding, but their premium HAMT-1 product did sound quite good for a hybrid driver design.
Only the HAMT-1 is up at the moment, but I'm sure others will follow sometime soon on oBravo's website.
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