Status Indicators, Power Switch, AC Fuse

Status Indicators

These indicators provide information about the actual operational state of the SbA750’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 SbA750 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 SbA750’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.

AC Fuse

During normal operation the AC fuse of the SbA750 only blows at the occurrence 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.

AC Connector

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

CAUTION: THIS APPLIANCE HAS NO USER-SERVICABLE PARTS INSIDE. LEAVE ANY SERVICING AND MAINTENANCE QUALIFIED SERVICE TECHNICIANS ONLY.

Electro-Voice®

SBA750 specifications

The Electro-Voice SBA750 is a powerful and versatile subwoofer, designed to deliver deep, impactful bass performance for a wide range of applications. Known for its high efficiency and robust build quality, the SBA750 is ideal for both mobile DJ setups and permanent installations in clubs, concert venues, and theaters.

One of the standout features of the SBA750 is its impressive output capabilities. With a maximum SPL (Sound Pressure Level) of 130 dB, this subwoofer can fill large spaces with rich bass without distortion. It is equipped with a high-quality 15-inch woofer that is specifically designed to handle high levels of power, ensuring that it can reproduce low frequencies with precision and authority.

The SBA750 utilizes a class D amplifier, which not only provides great power efficiency but also keeps the unit lightweight and easy to transport. This amplifier is capable of delivering 750 watts of continuous power, making it a robust choice for both portable and installed applications. The amplifier also includes built-in protection circuitry to prevent overheating and overloading, ensuring the longevity of the subwoofer.

Another key characteristic of the SBA750 is its advanced DSP (Digital Signal Processing) capabilities. This feature allows users to fine-tune the subwoofer’s performance to suit their specific environment and application needs. With adjustable EQ settings, users can easily tailor the sound profile to match the acoustics of the venue, whether it be a live concert or a DJ performance. The DSP also provides crossover control, allowing for seamless integration with full-range speakers.

The rugged cabinet design of the SBA750 is built to withstand the rigors of touring and live events. Constructed from durable plywood, the enclosure is finished with a rugged black paint that is resistant to scuffs and scratches. The front grille is made from strong metal to protect the driver while maintaining a sleek aesthetic.

In addition to its impressive technical specifications, the SBA750 features multiple input/output connectors, including XLR and ¼-inch jacks, ensuring compatibility with a wide range of sound systems and equipment. Its compact form factor also allows for flexible placement options, whether it be on the ground, in an array, or tightly packed in a truck for transport.

In summary, the Electro-Voice SBA750 subwoofer combines high power output, advanced DSP technology, and durable construction to deliver a reliable low-end solution for any sound application. Whether you’re a professional sound engineer or an aspiring DJ, the SBA750 is designed to meet the demands of modern audio environments. With its focus on performance and functionality, it remains a top choice for bass enthusiasts worldwide.