audioXpress Magazine - September 2017

In this issue

8 RME ADI-2 Pro Review By Bennett Prescott and Stuart Yaniger The RME ADI-2 Pro is a feature-packed update to the RME ADI-2 converter/headphone amplifier, providing a host of innovative features that will appeal to both mastering engineers and high-end audio aficionados alike. 14 Acoustical and Electroacoustical Measurements on a Tight Budget By Richard Honeycutt
20 SB Acoustics Rinjani and Ara Speaker Kits - A Gift for Fun By Oliver A. Masciarotte Learn more about SB Acoustics’ Rinjani and ARA speaker kits, which feature high-end Satori drivers. Oliver Masciarotte had the opportunity to live for some weeks with the exquisite floorstand Rinjani speakers. 30 True Bass in a Large Space A Pro DIY Subwoofer Project from 1975 Using Electro-Voice’s 30W 30” Woofer By Don Keele, Jr. Inspired by a DIY audioXpress article from February 2017 titled: “True Bass in a Small Space,” Don Keele describes an equivalent solution from 1975 that provides about the same response and acoustic output but uses a high-efficiency low-excursion 30” driver mounted in a massive 76 ft3 vented-box, driven by a 60 W amplifier, creating a total system weight that exceeds 800 lbs.! 44 The Thinman Project By Ken Bird Galvanized by the revival of 2.1 analog stereo, this variation of a thin speaker is 5.5” wide and 49.5” high, with a footprint of less than a square foot, built in a three-way configuration, using an 8” woofer side firing in the ported section of the enclosure, with a dual midrange and dome tweeter in a classic D’Appolito MTM arrangement in their own sealed enclosure.
52 Hybrid Electrostatic Loudspeaker with Tailored Dispersion By Charlie Mimbs Build your own hybrid electrostatic speaker with tailored dispersion and “a really cool stator design.” As Charlie Mimbs explains, “This speaker is three generations evolved from my original ESL.” 62 New Design Brings International Recognition An Interview with Zoltán Bay, Creator of the Bay Radial Speaker By Shannon Becker