http://www.allenamps.com/kits.html im thinking about getting the encore 1 15 or 4 10 as im looking to build a fender type circuit....save a few bucks...update if i find other amp builiding sites... After some further research i have found this page which shows about 6 different options... https://weberspeakerscom.secure.powweb.com/store/startpage.html