Length of 2-Wire 70V line Cable Selection by: John Vellone The following will help you determine the correct cable for you 70 volt installation. Yes, size does matter! Every install is similar but different. Make sure you use the correct cable gauge in order to deliver maximum power to your speakers. The correct cable will […]
Power / Load Impedance for 100V, 70.7V, 50V and 25V lines by: John Vellone Load Impedance in Ohms Power Watts 100V Line 70.7V Line 50V Line 25V Line 1 10,000 5,000 2,500 625 2 5,000 2,500 1,250 312.5 4 2,500 1,250 625 156.25 8 1,250 625 312.5 78.125 10 1,000 500 250 62.5 15 666.6 […]
Distributed Audio By John Vellone There are two types of audio amplifier on the market. Constant Current Amplifier (like your home stereo amplifier), which have a low impedance output of either 8 ohms or 4 ohms, and Constant Voltage Amplifier (used for commercial distributed audio systems) which have a high impedance out put identifies in […]
