I ordered a pair of these beasts and Man O' Man, these sound awesome!! I had a problem with one of the amplifier modules ,mainly a low level 60hz hum coming from one enclosure. I called customer service, and was told that a complete replacement amplifier module will be shipped free of charge. The person at S/A even said that he would go out 'Onto the floor' and make sure that the module he was going to send to me was in good working order!! I give customer service 5 stars! As far as the low frequency response and the sheer loudness of these, in short , you could rearrange your furniture with these things on half volume!! No lie! I'm a very happy and satisfied customer....Seismic Audio Rocks!! Dan Eary Oregon Coast Addendum: Well here it is ,7 days later and no replacement module for sub No. 1. The '2nd' of the pair of subs just started having problems. Low level hum, no output what-so-ever! Looks like I need to break out the Ol' Fluke meter and fix these things myself. *Warning: If you want to waste your hard earned money on cheap junk, go ahead, but be prepared for a headache,heart-break,and ANGER! I change my 5 stars for Seismic Audio to 0 Stars..... Dan Eary Oregon Coast
I was a bit leery at first because of the price. Once I got them home and broke in they handled 30 Hertz like a champ all you could hear was my house rattling.
Sounds amazing but one speaker is not working, then the other one stop. But Saesmic Audio costumer Service is very responsive and trying to take care, his awesome!!!!! Waiting for the replacement of the Amplifier Plate. Thanks
I use these along with a pair of Kustom self powered speakers, the Kustoms have two 15 inch full range speakers and a horn. This is for my garage and patio, For the money these subs work great. I have a small mixer and CD player and the music is full and loud. A good investment for a home system as well as a DJ set up.
Tyler Schwenk
Five Stars
great subs sounds good
Lily Savage
Five Stars
Run these in a gymnasium for our youth program great sound and amazing bass potential. Great budget buy.
Gina Ordiway
The bass is wonderful
There isn't much bad things to say. I have been using these subs since last year and haven't had any issues with them and they sound great.
Aida Cunanan
Seismic Audio Tremor 18" Powered Subs
I ordered a pair of these beasts and Man O' Man, these sound awesome!! I had a problem with one of the amplifier modules ,mainly a low level 60hz hum coming from one enclosure. I called customer service, and was told that a complete replacement amplifier module will be shipped free of charge. The person at S/A even said that he would go out 'Onto the floor' and make sure that the module he was going to send to me was in good working order!! I give customer service 5 stars! As far as the low frequency response and the sheer loudness of these, in short , you could rearrange your furniture with these things on half volume!! No lie! I'm a very happy and satisfied customer....Seismic Audio Rocks!! Dan Eary Oregon Coast Addendum: Well here it is ,7 days later and no replacement module for sub No. 1. The '2nd' of the pair of subs just started having problems. Low level hum, no output what-so-ever! Looks like I need to break out the Ol' Fluke meter and fix these things myself. *Warning: If you want to waste your hard earned money on cheap junk, go ahead, but be prepared for a headache,heart-break,and ANGER! I change my 5 stars for Seismic Audio to 0 Stars..... Dan Eary Oregon Coast
Lindsay Henderson
Good low-end
I was a bit leery at first because of the price. Once I got them home and broke in they handled 30 Hertz like a champ all you could hear was my house rattling.
Regina Bowler
I love the sound of it
Thanks I got the cables now. I love the sound of it. Thanks againg.
Zaini Asma
Sounds amazing but one speaker is not working
Sounds amazing but one speaker is not working, then the other one stop. But Saesmic Audio costumer Service is very responsive and trying to take care, his awesome!!!!! Waiting for the replacement of the Amplifier Plate. Thanks
Tracey Hulsey-Sykes
For the money these subs work great. I have a small mixer and CD player ...
I use these along with a pair of Kustom self powered speakers, the Kustoms have two 15 inch full range speakers and a horn. This is for my garage and patio, For the money these subs work great. I have a small mixer and CD player and the music is full and loud. A good investment for a home system as well as a DJ set up.
James Lee
Great sound and built well at an affordable price.
These things are built well and bring out the bass and deep ends that are a must in every band sound mix. Very impressed! And reasonably priced too!
Precious Sufiah
Five Stars
Powerful speakers, adds the extra bass to my set that I was looking for.