Test Bench: An Updated CQ76 Ribbon Tweeter from BoZhen New Audio Lab

This Test Bench article examines the CQQ76 ribbon tweeter from BoZhen New Audio Lab. The original device BoZhen sent to Voice Coil in 2013, the CQ76 ribbon tweeter, was portrayed in the company literature as a unique (patent number ZL200820128865.6) ribbon tweeter design. “CQ” is an acronym in Chinese pinyin “Chuan-dao-pian Qu-dong,” which in English means “ribbon loudspeaker based on slice-conducted technology.” This article was originally published in Voice Coil, October 2017.

Getting ready for another edition of the AES Convention in New York City, and many other October shows, this edition of Voice Coil is another one for the records, including an extensive directory of Amplifier and DSP Vendors, and a review of Bose's latest patent of a new bass reflex and tuned pipe enclosure. In Test Bench, Vance Dickason characterizes the 745NEOBe, a pro sound 1.4” beryllium compression driver from Radian Audio, and the updated CQQ76 ribbon tweeter from BoZhen New Audio Lab.

This month brought an interesting high-frequency driver to Voice Coil’s Test Bench, a new high-end ribbon tweeter from a Shenzhen, China-based company, Bozhen New Audio Lab. From Bozhen, we received the CQ66, which is the next generation of its CQ76 ribbon tweeter (featured in Voice Coil’s April 2013 issue). This article was originally published in Voice Coil, May 2016.

Now available, Voice Coil May 2016 features an in-depth article by Wolfgang Klippel on how to use digital signal processing (DSP) to improve loudspeaker performance. We also look at a recent Bose patent of a device configured to be worn around the neck, and we characterize a ribbon-type transducer from Bozhen and two new beryllium tweeters from Scan-Speak.

This Test Bench focused on a ribbon driver from Bozhen New Audio Lab. The CQ76 is a ribbon loudspeaker designed for household hi-fidelity systems as a mid-high unit, featuring a crossover frequency at 1500Hz and very low distortion under high power output. This article was originally published in Voice Coil, April 2013.