New Energy with DanteTM The new DT series from MONACOR now conveniently allows you to implement Audio over IP solutions with DanteTM interfaces at a very attractive price and includes the new speaker WALL-05DT which is suitable for fixed installations in shops, hotels, in pubs and restaurants, in schools or indoor sports facilities. With […]
UTP Cable Termination Standards 568A Vs 568B Summary In the past there have been two main termination specifications for UTP data cable infrastructure and yet another for phone cable infrastructure. In today’s world of structured cable systems where many different services can be run over one type of cable it is important to keep […]
Telco Multi-Pair Color Code By John Vellone Green Red Black Yellow Blue Orange Green Brown Slate What do all the wire colors mean? Two wires (normally referred to as a “pair”) are needed for most telephone connections. One of the wires in a pair is referred to as the “tip” and the other […]
Principles of Sound Masking By John Vellone Sound Masking, Reducing noise in the work environment Masking those sounds to decrease speech intelligibility with Sound Masking.. This improvement in speech privacy can be of great value in open-plan offices, doctors’ examination rooms, call centers and other environments where confidentiality is important. Sound Masking Sound masking can also […]
Glossary of Microphone Terminology By John Vellone ◆ Sensitivity Sensitivity is an electrical output produced in a microphone in response to an input with a specified sound level.Sensitivity is expressed in decibels (dB), the standard unit for indicating the ratio of power output to input, which is defined by public standards in individual […]
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 […]
Tech Support and Application Notes Cable Power Loss VS Gauge and Length By John Vellone The following table demonstrates these percentage load of signal in speaker cables of different gauges and lengths with respect to matched amplifier and speaker impedance. Use this table to determine the correct gauge of speaker wire to use depending on […]
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 […]
