It has been removed in the short term because I'm making some changes. We are out of stock of the Kiega amplifiers and in the future WMD will be a passive sub. We are going to use a derivation of the Exodus Amplifier to power these which includes all the crossover functionality of the Kiega plus 2 channels of PEQ, LT circuit & about 500W more power. This will extend the low end to below 20HZ F3 and give the user the ability to flatten any room nodes. I don't have an ETA on the new amplifier but we are shooting for somewhere near the end of summer.