0. Introduction

Congratulations! In buying an Electro-Voice®SbA750 you decided on getting one of today’s most ad- vanced active subwoofers incorporating sophisticated technology.

The active 15" subwoofer SbA750 with integrated 750 watt power amplifier has been specially designed to provide fundamental bass support for professional full-range and multi-channel cabinets. Through the integrated electronic frequency crossover of the SbA750 setting up an active stereo multi-channel system is truly simple. The stereo audio signals for the mid-high range cabinets are provided via the MID-HIGH outputs on the SbA750. Additionally provided are all connection facilities for using the SbA750 as active mono subwoofer in active 2-way or “add-on operation”. Manufactured from baltic birch and housing a high- performance Electro-Voice®DL15Y woofer, the SbA750 withstands even the hardest strain during transport and operation. While input connection is also possible via phone type jacks, all input and output signals are output via professional XLR-type connectors. The integrated High-Efficiency 750W power amplifier opti- mally matches the DL15Y woofer offering highest dynamic and audio performance and ensures at the same time that the DL15Y woofer is always operated in its optimum operation range. Extensive protection circuitry like VCP, DC/HF-protection, audio limiter, Back-EMF protection and thermal protection are em- ployed to securely monitor the compliance to these operation limits guaranteeing that the SbA750 provides outstanding performance even under most demanding conditions. The SbA750 is also especially suitable for many rental applications. Compared to Class-AB-operated amps and because of utilizing Class-H High- Efficiency technology the power amplifier produces significantly less power loss, and additionally reduces thermal stress of all components. Employing fans to ensure thermal stability is not necessary because of the Class-H technology and use of comprehensively dimensioned cooling profiles. The enclosure is sealed with extremely durable Futura coating and a robust powder-coated steel grille provides protection for the Electro-Voice®DL15Y woofer against mechanical damage. All controls and the cooling profiles of the power amp module are recessed to provide optimum protection for the sensitive parts of the SbA750 even during transportation. Two carrying handles, four castors and an integrated threaded pole-mount stand flange allow comfortable transportation and optimum, space saving installation. Because of its versatility, the SbA750 can be easily integrated into any existing sound reinforcement installation.

Unpacking and Warranty

Open the packing and carefully take out the SbA750. Remove the protective foil from the carrying handles. A power cord and the warranty card are supplied in addition to this owner’s manual. Please make sure that all details are filled in on the warranty card. Only a completely filled in warranty certificate entitles you to stake any warranty claims. Therefore, keep the original invoice together with the warranty certificate at a safe place.

Setup and Connections

Place the SbA750 on an even ground if possibly by using the supplied rubber feet to ensure safe opera- tion. Make sure to check the stability of the system when using pole-mount stands. Do not cover the heat sink on the subwoofer’s rear during operation. Otherwise, the SbA750 will enter protection mode because of thermal overload. Although this provides reliable protection for the subwoofer, sound reproduction is muted until the normal operation mode is regained. AC power is supplied via the Neutrik’s professional “PowerCon” connector system and by use of an 15’ (5m) AC cord. This ensures an absolute secure and reliable power supply connection. However, with large installations consisting of several active cabinets, the use of high-quality AC distributors that allow high power consumption and offer reliable protection through- out the entire system is strongly recommended.

Before establishing the AC connection for the first time, make sure that the SbA750’s operation voltage setting, which can be found on a label next to the AC switch, corresponds to your local AC voltage.

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Electro-Voice SBA750 user manual Introduction, Unpacking and Warranty Setup and Connections
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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.
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