The CPH-4 is our all horn-loaded asymmetrical enclosure specially designed with house of worship and auditorium problem solving in mind. Properly tilted, this box can achieve less than 5 dB variation in overall level in medium sized halls (1,000 to 1,500 people). The CPH-4’s all Neodymium loading results in serious overall weight savings. It is a 15” 3 way enclosure with a 10” mid-bass and a 1” high frequency compression driver. This speaker serves its purpose superbly.