The TSB Audio Kit’s flexible wiring make it easy to scale the kit for any audio arrangement. The base kit comes with 6 stereo outputs and to expand the kit simply add more Stereo Extensions. Each Stereo Extension adds two additional stereo outputs. For larger or multi-building arrangements, you can add another Audioserver with a LAN connection and control it as another zone or have it still part of your main audio zone. The flexibility and expandability of the Audio Kit is unmatched.