Add item to cart to see price Product Overview:Part Number: 550L The Shure 550L is an omnidirectional dynamic base station microphone with a frequency response specially tailored for voice intelligibility. It is equally useful for radio communications, paging and dispatching systems, and its low-impedance connection makes it adaptable to most PA amplifiers. The low-impedance design also makes it useful for long runs of cable, or under severe hum disturbance conditions.
The microphone is not affected by heat or humidity. Its exclusive ARMO-DUR case is immune to oil, grease, fumes, salt spray, sun, rust, and corrosion -- and is outstanding in its ability to resist mechanical shocks and vibration. The "Million-Cycle" leaf-type switch is designed to withstand rigorous operating conditions and constant use.
Features:Low-impedance operationCrisp, natural, high-intelligibility voice responseFingertip control bar actuates microphone circuit and external relay or control circuitLong-life switch meets rigorous requirements of communications and paging systemsSturdy, high-impact ARMO-DUR base and microphone case resists corrosionReliability under all operating conditionsNeoprene feet prevent microphone slippingSpecifications:Microphone Type: Dynamic
Frequency Response: 150 to 6,000 Hz
Polar Pattern: Omnidirectional
Impedance (at 1000Hz): Microphone rating impedance is 150 ohms (220 ohms actual) for connection to microphone inputs rated at 75 to 300 ohms
Sensitivity (at 1000Hz):Open Circuit Voltage* ... -54 dBV/Pa (2.0 mV)
*1 Pascal=94 dB SPL
Switch: Press-to-Talk Switch actuates microphone circuit and external relay or control circuit. Microphone circuit normally open.
Cable: 2.1m (7 ft) four-conductor, two-conductor shielded, non-detachable
Case:Brown ARMO-DUR
R with dull chrome-plated steel screen
