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The Contacta STS-M14-300 is the anti-vandal cardioid microphone built for the customer side of a window intercom installation in environments where the hardware is exposed to physical abuse, high ambient noise, or both. The microphone element sits on top of a straight 11.8-inch aluminum stem with a silver anodized finish, mounted to the glass partition so the pickup head extends through the glass to mouth height on the customer side. At 1.10 pounds, the M14-300 is roughly three times the weight of Contacta's lighter curved-tubing STS-M14-BENT variant because the stem is purpose-built for rugged service rather than for aesthetic styling.
The anti-vandal positioning matters at service windows exposed to the public where a customer-side microphone can take abuse: supermarket checkouts, government building service counters, public transit fare booths, airport check-in and information desks, and any high-traffic customer-facing counter where a lighter microphone would be at risk of being bent, broken, or torn out. The aluminum stem and anodized finish resist denting, chipping, and corrosion in high-traffic public environments, and the uni-directional cardioid pickup pattern rejects ambient lobby noise from the sides and rear so the customer's voice gets through to the staff side clearly even in loud spaces.
The cardioid directional microphone picks up the customer's voice from directly in front of the microphone head and rejects sound from the sides and rear. That is specifically important in high ambient noise environments where multiple customers may be queued at adjacent service positions, HVAC and refrigeration systems add constant background noise, or lobby PA announcements compete with the counter conversation. The microphone's 100 Hz to 5 kHz frequency response covers the full intelligibility range for speech without wasting sensitivity on sub-bass or ultrasonic frequencies that don't carry useful voice information.
Technical specs: cardioid directional response, -47 ±3 dB sensitivity at 1 kHz, 680-ohm output impedance at 1 kHz. The microphone is designed to pair with Contacta's STS-A31H window intercom amplifier and powered by the PS-55 power supply, the same amplifier and power supply used across Contacta's window intercom family.
The STS-M14-300 is the microphone component in the Contacta STS-K064 Anti-Vandal Window Intercom System. If you are running that kit and the customer-side microphone has been damaged or needs replacement, this is the correct replacement.
If you don't need the anti-vandal construction, Contacta's lighter curved-tubing STS-M14-BENT microphone (shipped in the STS-K058 kit) uses the same cardioid pickup pattern at a lower weight and a curved aluminum tubing arm for installations where the counter geometry favors a bent-arm microphone over a straight stem.
If you're not sure whether the STS-M14-300 is the right customer-side microphone for your installation, please call us at 800-207-2259.
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Technical Data:
The Contacta STS-M14-300 is the anti-vandal cardioid microphone built for the customer side of a window intercom installation in environments where the hardware is exposed to physical abuse, high ambient noise, or both. The microphone element sits on top of a straight 11.8-inch aluminum stem with a silver anodized finish, mounted to the glass partition so the pickup head extends through the glass to mouth height on the customer side. At 1.10 pounds, the M14-300 is roughly three times the weight of Contacta's lighter curved-tubing STS-M14-BENT variant because the stem is purpose-built for rugged service rather than for aesthetic styling.
The anti-vandal positioning matters at service windows exposed to the public where a customer-side microphone can take abuse: supermarket checkouts, government building service counters, public transit fare booths, airport check-in and information desks, and any high-traffic customer-facing counter where a lighter microphone would be at risk of being bent, broken, or torn out. The aluminum stem and anodized finish resist denting, chipping, and corrosion in high-traffic public environments, and the uni-directional cardioid pickup pattern rejects ambient lobby noise from the sides and rear so the customer's voice gets through to the staff side clearly even in loud spaces.
The cardioid directional microphone picks up the customer's voice from directly in front of the microphone head and rejects sound from the sides and rear. That is specifically important in high ambient noise environments where multiple customers may be queued at adjacent service positions, HVAC and refrigeration systems add constant background noise, or lobby PA announcements compete with the counter conversation. The microphone's 100 Hz to 5 kHz frequency response covers the full intelligibility range for speech without wasting sensitivity on sub-bass or ultrasonic frequencies that don't carry useful voice information.
Technical specs: cardioid directional response, -47 ±3 dB sensitivity at 1 kHz, 680-ohm output impedance at 1 kHz. The microphone is designed to pair with Contacta's STS-A31H window intercom amplifier and powered by the PS-55 power supply, the same amplifier and power supply used across Contacta's window intercom family.
The STS-M14-300 is the microphone component in the Contacta STS-K064 Anti-Vandal Window Intercom System. If you are running that kit and the customer-side microphone has been damaged or needs replacement, this is the correct replacement.
If you don't need the anti-vandal construction, Contacta's lighter curved-tubing STS-M14-BENT microphone (shipped in the STS-K058 kit) uses the same cardioid pickup pattern at a lower weight and a curved aluminum tubing arm for installations where the counter geometry favors a bent-arm microphone over a straight stem.
If you're not sure whether the STS-M14-300 is the right customer-side microphone for your installation, please call us at 800-207-2259.
Features:
Applications:
Physical Data:
Technical Data:
