So, the new RevC boards have not yet arrived at Russ's, so there will likely be a delay of a day or two getting the first kits out. I have updated the ship date on the RevC page. Sorry. They will go out as soon as possible.

In the mean time, Russ has been cranking away at the new symmetric balanced stuff based around the THS4131, and here are some preliminary tidbits. The new kits will be modular, and based around what we are calling the Twisted X module. It will be the heart of the Twisted X Preamp (aka TXPre), the Twisted X Overture (TXO), and Twisted X Symphony(TXS), as well as some other ideas we have in the pipeline. The TX Pre will be a pair of TX Modules with components configured for gain, and will work SE/Balanced In and Out. The TXO will be a pair of TX modules, each with a pair of small LM3886 boards (currently called Twisted Power Module 3886 or TPM3886) for each channel, along with power supply boards. That will give you a symmetric balanced bridged LM3886 amp. The TXS follows the same lines, but uses OPA549s (TPM549) for high current. It will be possible to go crazy and add more power modules and supply boards.

We will be posting some preliminary board pics, schematics and BOMs in the next few days. We hope to get some boards ordered in the next week or two.