Operation

QSControl Port

The QSControl port operates on a 10BaseT Ethernet network. This port is one of the primary means for connecting QSControl.net to the BASIS. The port may connect directly to a PC's 10BaseT or 10/100 (auto-sensing or auto-negotiating) network interface card using a crossover cable. Data from the QSControl port may also pass through network repeaters, network switches and routers. We strongly recommend the use of network switches to facilitate higher bandwidth and dedicated connections.

CobraNet Port

The CobraNet port operates on a dedicated 100BaseTx (Fast Ethernet) network. The CobraNet port may connect directly to a PC's 100BaseTx or 10/100 (auto-sensing or auto-negotiating) network interface card using a crossover cable for the purposes of configura- tion when the BASIS 922dz is in the single-wire interface mode. During normal operation (passing audio) the CobraNet port must con- nect to a 100BaseTx or 10/100 or 10/100/1000 (auto-sensing or auto-negotiating) switch port. Optionally, the BASIS 922dz may connect to another CobraNet port using a crossover cable. When the BASIS 922dz is operating in the two-wire interface mode (described in fol- lowing sections), the CobraNet port may be connected to a network repeater. Regardless of the interface mode, all CobraNet audio data must pass through only network switches or only network repeaters. Combinations of these devices will cause unreliable operation and are not supported. Likewise, the use of routers, gateways and ATM devices are not supported for the CobraNet audio path.

CobraNet Channel Density

The BASIS 922dz will support the acquisition of up to 32 channels via up to 4 inbound bundles (from the network). Of these 32 channels, any 16 may be selected to forward to the signal processing chain (DSP engine) in any one configuration.

The BASIS 922dz will support the delivery of up to 32 channels via up to 4 outbound bundles (to the network). Of these 32 channels, up to 24 may be unique (processed individually... or the result of mixed signals from the DSP engine). The remaining 8 channels (if used) will be copies of other channels.

CobraNet Channel Resolution

All CobraNet audio will be processed internally within BASIS 922dz at 24-bit resolution. The BASIS 922dz may receive any valid resolu- tion off of the network. This is currently 16-bit, 20-bit and 24-bit. Audio via inbound bundles may be in any combination of these resolu- tions and the BASIS will process the data accordingly. All DACs will process 24-bit audio, though the least significant bits may be zero filled if the inbound audio format is less than 24-bit resolution.

The BASIS 922dz will support outbound (sourced onto the network) resolutions of 16-bit, 20-bit and 24-bit. The default outbound reso- lution is 20-bit.

CobraNet Terms and Conditions

Single-wire interface offers the best efficiency and ease of network configuration for most applications. The single-wire interface requires fewer network ports and less cabling. Single-wire interface refers to CobraNet audio, CobraNet control and monitoring and QSControl.net control and monitoring using the same network connection. This mode uses the CobraNet connection to provide all data communications to the BASIS product. In this mode, the port must connect to a 100BaseTx or 10/100 or 10/100/1000 (auto-sensing or auto-negotiating) link partner. Network repeaters will not be supported and all audio must pass through network switches only. A QSControl.net Venue Manager PC may connect to the network via a repeater or router.

Two-wire or dual-wire interface offers the greatest versatility in network design. Separate connections allow discrete networks and offer support for WAN topologies on the QSControl.net-side. Two-wire or dual-wire interface refers to CobraNet audio having a dedicated network link and QSControl.net control and monitoring having a dedicated network link. In this mode, the two ports (Cobra- Net and QSControl) must be connected to separate networks. By separate networks, we mean either physically separate hardware or the use of common hardware with partitioned or segmented network domains such as the use of VLANs. The dual-wire interface may support dissimilar network hardware for the two port connections (see rules above for CobraNet and QSControl port connections).

1 Minute Autosave Timer and Power Cycling

The active configuration has a special feature associated with it. Any changes made to a parameter during operation will start an inter- nal timer which will trigger an automatic save of the configuration data. The save procedure begins after 1 minute of parameter change inactivity. If the BASIS 922dz is then power cycled, upon restart, the previous settings data will be preserved in the active configuration.

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QSC Audio BASIS 922dz manual Operation
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BASIS 922dz specifications

The QSC Audio BASIS 922dz represents a cutting-edge advancement in digital audio processing and distribution systems. Specifically designed for live performance environments, the BASIS 922dz integrates seamlessly into a wide array of sound applications, making it a versatile asset for audio professionals.

One of the key features of the BASIS 922dz is its dual-zone processing capability, allowing users to manage independent audio routing and control for two distinct areas. This flexibility is essential for venues that require different audio settings or playback sources in separate zones, ensuring that sound engineers can maintain complete control over their audio environments.

The BASIS 922dz utilizes advanced digital signal processing (DSP) technology, enabling enhanced audio clarity and fidelity. With features like equalization, crossover, and dynamic processing, sound engineers can optimize audio quality and tailor the listening experience for any venue or audience. The DSP architecture is designed for high performance, handling complex audio tasks without latency, which is crucial in live sound applications.

Connectivity is a significant aspect of the QSC BASIS 922dz, offering multiple input and output options. It supports both analog and digital audio connections, facilitating integration with a variety of sound systems and peripheral devices. This extensive connectivity supports various audio formats, ensuring compatibility with modern digital audio infrastructure.

Additionally, the BASIS 922dz is equipped with QSC’s renowned Advanced Network Technology (ANT), which allows for remote control and monitoring. This feature enables audio professionals to make real-time adjustments and fine-tune settings from a distance, significantly enhancing workflow efficiency during live events.

The unit is also designed for ruggedness and reliability, featuring a robust chassis that can withstand the rigors of touring and live performances. Its user-friendly interface simplifies operation, making it accessible for both seasoned professionals and newcomers alike.

In summary, the QSC Audio BASIS 922dz stands out as a powerful tool for audio processing and distribution. With its dual-zone capability, advanced DSP features, extensive connectivity options, and robust design, it caters to the diverse needs of the audio industry, making it an essential component in any professional sound setup. Whether for concert halls, theaters, or corporate events, the BASIS 922dz is engineered to deliver optimal sound quality and performance.
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