Thank you for your cooperation! Notes: Not for trucks. Max Output Power: 1200W. High level Input Sensitivity: 0.9v. Low Level Input Sensitivity: 300mV. Low Pass Filter: 50-150Hz. Fully functional and easy to debug. Slim fuselage, installed under the seat. Design of high temperature resistant coil. Fine workmanship and good performance. 6″8″ speaker gives A different kind of heavy bass effect. We have always been doing our best to provide the best service and reliable products for every customer. We will reply your emails and questions within 24 hours. But, we’d like to assist you to receive the goods smoothly if there are anything we can do here. Items will be sent via Hermes, RoyalMail, & Yodel. We will check and offer a good solution to you. We are only responsible for once re-sending expense for replacement due to defects.