DESC: The EPIC-160 makes it easy by conveniently mounting an SPL microphone on the front panel that will measure up to 160 dB. A bright LED display shows how loud your system really is. In addition, the on board peak hold software can be selected to latch on to the highest SPL value. Claiming bragging rights is now much easier. play. If your SPL numbers are smaller than you expected, maybe your battery is low or your alternator is not putting out. Of course nobody seems to be concerned when their SPL is too high!