The refoaming of my O3A mid range speakers was perfect in every way. Didn't take long, didn't cost too much, packaged perfectly to protect when sent back. They even included a nice piece of...

Talking to Gary at CSS he quickly diagnosed a problem with the woofers in my 28 year old Thiel CS 1.5 loudspeakers over the phone and gave me instructions on how to remove the drivers and how to...

I had contacted Rob, the owner of Coherent Source Service, this morning with some questions about Thiel speakers. Rob was knowledgeable and kind. Just like the great quality of Thiel speakers,...

I contacted Rob because I heard he was doing a great job repairing/restoring Thiel speakers. Although I don't have any at this time I emailed him to ask what models he might recommend for my...

I blew a tweeter on my CS5i and just about had a heart attack. Rob at Coherent Source saved the day!!! Highly recommend if your Thiel speakers need servicing!