12v Case Study: High Fidelity in a Volkswagen Golf R
High-fidelity car sound systems are making a comeback. Where this category has been on somewhat of a hiatus for the mainstream and principally a competition-grade endeavor, 12-volt specialty retailers embracing highly evolved sound are experiencing a renaissance. It requires demonstration vehicles and system approaches that retailers can understand and replicate. One such demonstration vehicle belongs to Youseff Phillips, event and product support manager for Elettromedia USA.
Start with a Plan
For Phillips’s 2013 Volkswagen Golf R, the plan was clear: demonstrate his company’s Audison- and Hertz-branded audio products in the most ethereal way. The company has been beating the drum for their source-to-amplifier digital signal path approach called Full DA Technology. His Golf was the perfect candidate to build a well designed, thoughtfully installed audio system that Elettromedia USA could use at its Las Vegas dealer show during CES, as well as many other dealer events throughout the year. He chose former Installer of the Year and Retailer of the Year Jon Kowanetz and his talented install team at Handcrafted Car Audio in Chandler, Ariz., to install the system.
Digital Signal Path
Kowanetz and his team at Handcrafted used the bit Play HD Media Server as the source. This provides high-quality digital playback of FLAC files up to 24bit/192kHz resolution in two-channel (stereo) mode. The bit Play HD connects digitally to the Audison bit One, where all the time correction, equalization and active filtering takes place. From the bit One, the digital signal path continues to an Audison Voce AV 5.1k HD amplifier with built-in digital front-end interface to accept the digital input. “When we keep the signal path digital all the way into the amplifier, we have the maximum flexibility of high-quality signal transfer in the digital domain without the concern for effects from radiated or ground loop-based noise issues,” explained Phillips. An Audison DRC-1 controller for the bit One resides in the storage area forward of the shifter to control volume and presets so Phillips can demonstrate the flexibility of the system and easily optimize a specific seat for the primary listener.