Test Bench

In its August 2020 edition's Voice Coil magazine focuses once more on the new-generation of our LT Series of FEA optimized Planar Ribbon drivers. Vance Dickason's famous Test Bench characterizations are widely regarded in the audio industry as an accepted benchmark for independent speaker measurements, and he did indeed serve a generous dose of measurements for our LT2 Ribbon Transducer and corresponding waveguide. The full article and measurements are now available online in full!

In the June 2020 edition of Voice Coil magazine, Vance Dickason measures in detail the latest Radian Audio Engineering’s LT6 Horn-Loaded Ribbon Device. After reviewing all the data he praises the LT6 as a great alternative for compression drivers and a viable new choice for studio monitors and PA speakers and PA arrays.

For the February 2020 edition of Voice Coil magazine, Vance Dickason characterizes a new Radian ferrite compression driver. The Test Bench focus on Radian's 835PB ferrite 1.4” aluminum diaphragm compression driver. After reviewing several of Radian’s neodymium series of compression drivers, Dickason characterized the 835PB and noted how this driver continues to have the expected rich feature set that is the hallmark of the company.

In January 2019, Vance Dickason characterized the 475PB 1" compression driver from Radian Audio Engineering. This was the second ferrite motor compression driver from Radian to be featured in Test Bench, following the 745PB, covered in the December 2018 issue. The Radian 475PB has a similar set of features as Radian’s 745PB and includes a 1” throat diameter, a 134 mm × 19 mm ferrite magnet motor, a high-temperature 44.5 mm (1.7”) diameter polyimide voice coil former wound with copper-clad aluminum edge-wound ribbon wire voice coil, 50 W AES power handling above 800 Hz and 100 W program power handing. 

For the October 2017 Test Bench, Dickason characterizes the 745NEOBe, a pro sound 1.4” beryllium compression driver from Radian Audio. Radian, based in California, is a major player in the OEM loudspeaker component business, with more than three decades of success under its belt, now benefiting from new ownership, management team, and investment from Fortune Sound, Inc., led by Dwight Tobiano. For this Test Bench, Radian Audio sent its new beryllium diaphragm 745NEOBe compression driver, together with its 745NEO iteration using an aluminum diaphragm for comparison, which costs six times less. The test focuses on the Radian 745NEOBe, but Dickason provides interesting objective comparisons of both models.

This was the first time Test Bench featured a product from the highly respected Radian Audio Engineering.Radian Audio Engineering was founded in 1988 by Dr. Richard Kontrimas.