Generated by All in One SEO v4.9.10, this is an llms.txt file, used by LLMs to index the site. # Coherent Source Service Specializing in the restoration and repair of THIEL Loudspeakers and other high performance audio components. ## Sitemaps - [XML Sitemap](https://www.coherentsourceservice.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Pages - [THIEL CS1.5 4461 & 4462 - Fully Restored - Black Ash - SOLD](https://www.coherentsourceservice.com/speakers-for-sale/thiel-cs1-5-4461-4462-fully-restored-black-ash/) - A Small Scale Classic The small size yet tremendous scale of the CS1.5 will certainly grow on you This pair has undergone complete restoration completed in May 2026 by Coherent Source Service Please contact us to inquire further or to purchase $1250 for the pair Nearly 30 years old, yet new again In 1994, THIEL - [THIEL CS.5 1817 & 1818 - Restored - Dark Walnut - SOLD](https://www.coherentsourceservice.com/speakers-for-sale/thiel-cs-5-1817-1818-restored-dark-walnut/) - Le Petit THIEL Our smallest ever pair floorstanding speakers remain an astonishing testament to sound quality and musicality. Discreet sound and subtle style, these small THIELs are a joy to play. $675 for the pair Sounds so much larger than their size By the time the CS.5 was introduced in 1994, its larger sibling, the - [Speakers for Sale](https://www.coherentsourceservice.com/speakers-for-sale/) - A special collection of THIEL loudspeakers and related items for sale directly by Coherent Source Service All THIEL speakers offered for sale by Coherent Source Service have undergone extensive testing and restoration. They are certified to perform at or beyond original specifications. CS1.5 Black Ash Pair CS.5 Dark Walnut Pair Loading… - [Library](https://www.coherentsourceservice.com/library/) - A compiled history of official THIEL loudspeaker information plus modern updates, parts availability, and photo galleries. This page is a work in progress. Please excuse missing information. It is actively being compiled from historical THIEL documentation and other resources. Loudspeaker models with pages currently associated have their titles underlined. MODEL 01 MODEL 02 MODEL 03 - [SCS4](https://www.coherentsourceservice.com/library/scs4/) - c. 2007-2013 MSRP $990 /ea. Ideal bookshelf speakers, or the perfect center channel. SCS4 is both flexible and extraordinary Lessons learned from CS3.7 migrate into a much smaller model. The entire history of the SCS is an identity crisis. That's the point. That a non-floorstanding speaker could be placed anywhere in a room high or - [CS3.7](https://www.coherentsourceservice.com/library/cs3-7/) - c. 2007-2014 MSRP $13,995 /pr. Jim Thiel's finest and final expression of engineering and design principles refined throughout his career. For a final time, THIEL expressed their boldest innovations with a new CS3 Series loudspeaker. Revolutionary Evolution Every single one of THIEL's principles of design reached their peak after years of focused development in the - [CS2.4](https://www.coherentsourceservice.com/library/cs2-4/) - c. 2004-2011 MSRP $5995 /pr. Mechanically 3-way, electrically 2-way floorstanding loudspeaker with an 8 inch bass driver and distinctive racetrack passive radiator. An all-around revision of the already revered CS2.3 CS2.3 proved the concept worked. CS2.4 perfected it. One of the watershed moments in THIEL's history as a transducer developer was creation of the mechanical - [CS1.6](https://www.coherentsourceservice.com/library/cs1-6/) - c. 2001-2010 MSRP $2495 /pr. A small two-way floorstanding speaker notable for its exceptional midrange resolution and timbre plus outstanding value. Modernized industrial design, new features, yet unmistakably THIEL. Though clearly engineered in the spirit of other THIEL two-way floorstanding speakers, CS1.6 was a massive step forward in performance and design. By 2001, THIEL's small - [Contact](https://www.coherentsourceservice.com/contact/) - Do your speakers need service? Do you have a question about THIEL? Can we offer stereo advice? Need a music recommendation? Address Coherent Source Service is located at: 763 Newtown PikeSte. 130Lexington, KY 40511USA Phone: 1 859 554 9790 Hours of Operation: Monday-Friday 10a-4p Note: While we are typically in office during these hours, we - [About Us](https://www.coherentsourceservice.com/about-us/) - From the end of THIEL, Coherent Source Service began. Lexington, Kentucky is THIEL's spiritual home THIEL left its long time home in Lexington, KY in 2014 The new company owners made the decision to abandon the factory on Nandino Blvd. for a new location closer to the homes of investors effectively ending production of THIEL's - [Payment](https://www.coherentsourceservice.com/payment/) - If you've received an invoice from Coherent Source Service, please submit payment here.