Electro‑Voice engineers leading‑edge sound reinforcement solutions with products designed to provide best‑in‑class performance, reliability and value.
Cable Loss Estimator
The single most important piece of information on the right side of the calculator is the net power loss in the cable. This is a measure of how much of the amplifier power is dissipated in the cable, before it ever gets to the loudspeaker. The lower the power loss, the more power actually goes into making sound. For an 8-ohm loudspeaker connected to 40 feet of 18-gauge zip cord, the power loss is about ½ dB, which is neither audible nor significant, especially for an amplifier with high power output. So, from the standpoint of power transmission, 18-gauge wire is suitable for many home applications. But for longer cable runs, the losses can be greater and you should consider changing to a larger diameter cable.
Electro-Voice is part of the Bosch Communications Systems family of brands, offering the world’s most complete portfolio of professional audio and communications solutions.