NOTE! THE PHASE SUMMER IS NO LONGER IN PRODUCTION. Please use the iRTA2: Use the Phase Summer to sum two channels together and look for cancellations (which indicate that the two channels are not in phase for some or all of their bandwidth).
The dual-cable kit is for users who do not already own an Educar XLR-to-meter-probe test-lead set. If you already own one, you should purchase the single-cable version (see below).
An RTA is required (not included).
NO LONGER AVAILABLE