Superlux have been around for more than 30 years and during this time the Taiwanese company has launched several devices into the”Personal Audio” and “Pro Audio” markets. Our practical test looks at whether the HD660 Pro is rightly placed in the “Professional Headphones” segment.
The Superlux HD660 Pro package is straightforward. In addition to the headphones themselves, all that’s included is a gold-plated screw adapter that allows the mini-jack plug cable to be used on 6.35mm jack sockets.
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