Introducing Coherent Source Service for legacy THIEL loudspeakers


Press release | Lexington, KY February – Coherent Source Service has opened its doors with a mission to provide service for all THIEL loudspeakers manufactured by the company between 1977 and 2012. Founder Rob Gillum, who has been an employee of THIEL for over 30 years, Coherent Source Service (CSS) is stocked with nearly all relevant parts for legacy THIEL speakers.


Rob Gillum
Rob Gillum was originally hired by Tom Thiel in 1988 and worked in several positions at the Lexington, KY-based factory. In addition to working under Jim Thiel for many years, Gillum was cross-trained on every aspect of service and manufacturing including driver build, crossover build and cabinet finishing. Gillum had served as Director of Manufacturing prior to the company’s acquisition in 2012.
Coherent Source Service will provide THIEL warranty and non-warranty service for customers worldwide. Full speaker and cabinet restoration services are available as well, with prices quoted based on condition. Additionally, THIEL CS2.4 performance upgrade kits are available as well, including boutique capacitors for the passive networks along with outriggers and stabilizer pins from the 2.4SE series.
“THIEL loudspeakers are a big part of my life—I am passionate about the brand and the care that went in to the design and manufacturing of these fine speakers,” Gillum stated. “I look forward to working with all of the THIEL customers out there who love music and helped make the brand such a success.”

For service of THIEL Loudspeakers, please contact:
Coherent Source Service, LLC 763 Newtown Pike, Suite 130 Lexington, Kentucky USA 40511
CSS Hours: Monday-Friday: 9:00AM–5:00PM - 1+ (859) 554-9790

About Coherent Source Service
Coherent Source Service, LLC is owned and operated by Rob Gillum, the former Director of Manufacturing at THIEL Loudspeakers for over three decades who has worked in all facets of service and production. CSS stocks the parts to service nearly every model THIEL ever produced between 1977 and 2012. CSS is located in Lexington, KY about one mile from the old THIEL factory.


For further info: to the Coherent Source Service website

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