My Account | View Cart  (0 items) | Checkout Search for Welcome to Klaus Audio! Check out our wide selection of CUSTOM subwoofer boxes!  Single Subwoofer Boxes  Dual Subwoofer Boxes  Triple Subwoofer Boxes  Quad Subwoofer Boxes  Solo-Baric L5 & L7 Boxes  JL W7 Subwoofer Boxes  Subwoofer Box Parts  Sealed vs. Ported  Ported Box Tuning  Slot vs. Flared Ports  More Articles...  Photo Gallery  Carpet Colors  Testimonials  Contact Us  Company Info  Site Map  Policies  Back to Home Page         - Comments from some of our customers. ELLIOTT P. - HOLIDAY, FL Worth the Wait! This Box is sooo loud it is shaking my car apart! Thanks Klaus Audio!!!!! Item Purchased: Single 15" Straight Ported Solo-Baric L7 Subwoofer Box PAUL H. - NEW LONDON, CT Just Received my Custom 18" Straight Ported Subwoofer Enclosure.Its Beautiful, Klaus manufactored it with Professional Excellence,a lot better than the sealed 15" Enclosure I have.The sound reproduction exceeded all my expectations and I will recomend Klaus Audio to all my friends. Item Purchased: Single 18" Straight Ported Standard Subwoofer Box SHEA M. - ATLANTA, GA I just got my custom JL 8w7 single sealed box. Looks Great...Sounds Better! Best of all, Great price!!! HIGHLY RECOMENDED! Item Purchased: Single JL 8W7 Straight Sealed Subwoofer Box KAREN M. - FALLON, NV I just received my box yesterday and it is awesome, I just got the plain black carpet but its cool because its softer than most. But the best thing of all is that it sounds great. Item Purchased: Dual 12" Straight Sealed Standard Subwoofer Box WILLIAM D. - AUBURN, MA Was real excited when I ordered my box, but I have to say that I was kinda worried that it was going to be just like every other box I have purchased....Wow was I wrong...I will never buy a subwoofer enclosure anywhere else...Quality is absolutely perfect...all my buddies that see my box say its awesome...and my L7s sound so much better its unreal. Thanks for putting out a good product !! Item Purchased: Dual 12" Straight Sealed Solo-Baric L7 Subwoofer Box CLAY R. - COLORADO SPRINGS, CO I just recieved my enclosure for two 12's sealed with 1.25cft for each sub. The craftmanship of this box is far better than I expected. These guys know and care about what they are doing. I even had a few customs touches that I wanted done to my box and they were happy to do them. No worries with these guys they will take care of you. Item Purchased: Dual 12" Straight Sealed Standard Subwoofer Box JOSH C. - SALEM, IL I recieved box on thursday and I hooked it all up and let me tell you IT WAS LOUD!!! GREAT JOB KLAUS AUDIO!!! Item Purchased: Dual 15" Straight Ported Standard Subwoofer Box DAVID P. - PENSACOLA, FL Got my box in the mail the other day and wow, it's friggin awesome! All my friends were amazed and they heard me bragging about it for a while and they didn't believe me how good it was going to be and it actually turned out better than I thought it would. It simply sounds and looks amazing. Very nice job Klaus Audio. I'm definately recommending Klaus Audio to anyone who asks me about subwoofer boxes. Item Purchased: Single 12" Straight Ported Standard Subwoofer Box WENDELL D. - NICKELSVILLE, VA I would like to thank the team at Klaus Audio for the great box they built for me. It looks and sounds amazing, much better than the pre-fab box I was using. I recommend Klaus Audio to anyone looking for a great sounding custom made box. Item Purchased: Dual 12" Straight Ported Standard Subwoofer Box MATT S. - HAM LAKE, MN Great box at a great price, I'll tell my friends!! Item Purchased: Dual 12" Straight Sealed Standard Subwoofer Box Copyright © Klaus Audio, Rhinelander, WI. All Rights Reserved.