Status Indicators, Power Switch, Mains AC Fuse

Status Indicators

These indicators provide information about the actual operational state of the SbA760’s internal power amplifier.

Signal Indicates that an audio signal is present at the input and that it is output.

Limit When lit this indicator signals that the internal power amplifier actu- ally operated at the threshold of clipping. Short-term blinking is not critical, because the amp’s audio limiter keeps distortion under control, so that the sound is unaffected. Input overdrive, which results in sound degradation, is a probable cause for a continuously lit indicator. To prevent this from happening, reduce the input level.

VCP Lights when the power amplifier’s “Voice-Coil-Protection” is activated. During dynamic peaks the integrated power amplifier is capable of produc- ing output levels that exceed its stated nominal output capacity. Therefore, the SbA760 employs a VCP circuit (Voice-Coil-Protection), which simulates the thermal behavior of the speaker’s voice-coil, automatically reducing the energy fed to the speaker system on the occurrence of thermal overload.

Protect Lights when one of the multiple comprehensive protections, e.g. against thermal overload, HF, DC or Back-EMF of the power amplifier is activated. Preventing the woofer from being damaged, it is shutoff via relays in the protect mode. Additionally, the input level is being reduced. During power-on the PROTECT LED lights for approximately 2 seconds, which is normal. This only indicates that all protection circuitry has been activated properly.

Power Switch

AC switch for switching the SbA760’s power ON or OFF. The switch lights after turning the power ON. Make sure that the AC cord is correctly connected if the switch is not lit upon turning the power on. If the AC cord is correctly connected and the AC switch does not light upon power-on, please contact your local dealer.

Mains (AC) Fuse

During normal operation the mains (AC) fuse of the SbA760 only blows at the occur- rence of a malfunction. Exchanging the fuse is only permissible using a fuse of the same type (current, voltage and release characteristic). In case the fuse blows frequently, please contact your local dealer.

Mains (AC) Out

This PowerCon mains (AC) out socket allows the connection of additional cabinets, e.g. SxA360, using special cords (PC150 or PC800).

Mains (AC) In

Mains (AC) connection is established via a PowerCon connector. A 15’ (5m) long AC cord with PowerCon plug is supplied.

CAUTION: TO PREVENT AC NETWORK OVERLOAD, CONNECTING MORE THAN THREE SBA760 CABINETS TO A SINGLE MAINS (AC) OUTLET (10A-16A) IS NOT RECOMMENDED. THIS APPLIANCE HAS NO USER-SERVICABLE PARTS INSIDE. LEAVE ANY SERVICING AND MAINTENANCE QUALIFIED SERVICE TECHNICIANS ONLY.

Electro-Voice®SbA760 User Manual

SbA760 specifications

The Telex SbA760 is a pioneering device in the realm of professional audio solutions, specifically designed for communication applications within challenging environments. This headset exemplifies the blend of cutting-edge technology, ergonomic design, and user-focused features, making it an essential tool for users in aviation, industrial fields, and public safety sectors.

One of the standout features of the Telex SbA760 is its advanced noise-canceling capabilities. Utilizing sophisticated microphone technology, this headset effectively filters out ambient noise, allowing for clearer communication even in the noisiest surroundings. This is particularly crucial for users who operate in environments like aviation control towers or busy manufacturing floors, where background sounds can hinder effective communication.

The SbA760 is engineered for comfort and extended wear. With its padded headband and plush ear cushions, it ensures users can work for long periods without discomfort. The lightweight construction of the headset further enhances its wearability, making it suitable for those who require prolonged use during their shifts or operations.

In terms of connectivity, the Telex SbA760 incorporates reliable plug-and-play functionality, making it easy for users to connect to various communication systems. This versatility is one of the reasons it is favored across different industries, as it can seamlessly integrate with existing infrastructure.

The headset is built using durable materials, ensuring it can withstand the rigors of daily use in demanding environments. This commitment to durability is complemented by the headset's weather-resistant design, which helps protect the device against moisture and dust, extending its lifespan significantly.

Another significant aspect of the SbA760 is its adjustable boom microphone. This feature allows users to position the mic for optimal voice pickup, ensuring their voice is transmitted clearly. The microphone is also designed to minimize wind noise, providing enhanced clarity even when outdoors.

The Telex SbA760 is not only practical but also includes user-friendly controls that allow for easy adjustments to volume and other settings during operations. This level of convenience enhances the overall user experience, making communication more efficient and reducing the likelihood of miscommunication.

In summary, the Telex SbA760 is a robust audio solution providing high-quality sound, exceptional comfort, and reliable performance. Its combination of noise-cancellation technology, durability, and user-centric design ensures it meets the demanding needs of professionals across various industries, solidifying its position as a leading communication headset in the market.