Compression driver protection schematic

frequency driver protection for the new Rx22 compression driver. This is an integral part of the crossover for the SP 2X. The input signal is routed through the Sound Guard III circuit in both full-range and biamp modes of operation. When the high frequency drive level to the SP2X exceeds a predetermined threshold the Sound Guard III circuit is engaged. The effect that this has is to . • 22XT™ compression driver • Sound Guard™ high frequency protection circuit • Trapezoidal enclosure design • Built-in pocket casters for easy movement DESCRIPTION The redesign of the ever popular SP™ 4 has resulted in the SP™ 4G loudspeaker system. It is a pseudo three-way speaker system comprised of a 15" Scorpion®. Compression driver protection. In some sound reinforcement and studio monitors the high frequency drivers are protected by current sensing self-resetting circuit breakers. When too much power is dissipated by the driver, the circuit breaker interrupts the flow of electric current. The circuit breaker resets itself after a brief interval.

DRIVER CIRCUIT The driver circuit consists of Q1 through Q12 and is located on the Filter/Driver board. The driver circuit has a DC offset adjustment, R50, which should be set at 0 Vdc +/- 50mVdc. This can be measured across the + and - output wires (white black respectively) from the amp with power on and no signal applied. The driver. compression driver Driver protection: Positive temperature coefficient resistor Nominal coverage pattern: 90˚ x 40˚ Nominal impedance: 8 Ohms Input connections: Two 1/4" phone jacks in parallel Enclosure materials and finish: Injection-molded, 1/4" thick polypropylene with textured finish; dark gray color Dimensions (H x W x D). compression driver is 50%. While the parameters of most drivers are selecte d with this efficiency goal in mind, practical drivers fall short of the goal by two or three dB. Thus, w e commonly see drivers with 25 or possible 30% efficiency. For example, the JBL J has a midband efficiency of 30%, while the H/J design has a mid-.

What an odd circuit? There should be no positive and negative because audio is AC, not DC. R1 is permanently in series with the speaker. two Meyer Sound 4-inch diaphragm compression drivers coupled to a constant- directivity horn through a Protection circuits shall include TruPower lim-. Service free thermal compression driver protection It features a thermal protection circuit in active as well as passive mode. The trapezoidal shape of.