In general, the higher the power, the greater the depth that you can achieve, in addition to obtaining the maximum target separation by removing surface clutter. It also displays details such as small fish and structures. More power increases the chances of getting the returning echoes in deep water or in poor visibility conditions. The output power refers to the intensity at which the transducers send the signals expressed in watts RMS. Internal transducers are mounted directly inside the hull but the performance is reduced slightly. Transducers loops are ideal for tow boats where good performance demands and there are no protrusions from the hull.