Continental roots stress Earth's surface. FULL STORY. The Earth's rigid lithosphere varies laterally in thickness and strength. Areas of thicker, older lithosphere known as continental roots penetrate deeper into the mantle in some places under continents.
A monoblock is a type of amplifier used in car audio systems. What  the monoblock type of amplifier does is to split the two channels  of audio into two separate mono systemâ¦s, giving a little more kick  to the bass coming out of subwoofers.
FailSafe Compression ensures constant speaker output. The AT3M Headset Amplifier is a telephone amplifier from Jabra for phone systems requiring a PJ 327 plug prong interface. It is a unique product that offers a field replaceable headset cord and a 90Â° bend to minimize space and position the controls for easy access.