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 RAVE. 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 RAVE 522ua 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 RAVE 522ua may connect to another CobraNet port using a crossover cable. When the RAVE 522ua 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 RAVE 522ua 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 RAVE 522ua 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 RAVE 522ua at 24-bit resolution. The RAVE 522ua 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 RAVE 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 RAVE 522ua will support outbound (sourced onto the network) resolutions of 16-bit, 20-bit and 24-bit. The default outbound resolu- tion 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 RAVE 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, domain bubbles or separate port clusters. The dual-wire interface may support dissimilar network hardware for the two port connections (see rules above for Cobra- Net 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 RAVE 522ua is then power cycled, upon restart, the previous settings data will be preserved in the active configuration.

522ua specifications

The QSC Audio 522ua is a cutting-edge amplifier designed to meet the demands of professional audio environments. This versatile 2-channel amplifier delivers a robust performance, making it an ideal choice for installations in various settings such as auditoriums, theaters, and multi-purpose venues.

One of the standout features of the 522ua is its exceptional power output. With a continuous output of 250 watts per channel at 4 ohms, it ensures that audio signals are delivered with clarity and strength. This amplifier is built to handle both low and high impedance loads, providing flexibility for different speaker configurations. What’s more, its dynamic power capabilities allow for peaks up to 450 watts, ensuring that even the most demanding audio content is reproduced with stunning accuracy.

At the heart of the QSC 522ua is the innovative PowerLight technology, which combines efficiency and performance. This technology not only contributes to reduced power consumption but also results in lower operating temperatures, enhancing the reliability and longevity of the amplifier. The compact design of the 522ua ensures it can fit into tight spaces while still providing ample power, catering to the needs of various installations.

Another important feature is the integrated DSP (Digital Signal Processing), which allows users to fine-tune audio output for optimal performance. The DSP includes functions such as equalization, delay, and crossover settings, enabling precise control over sound reproduction. The intuitive user interface, along with the LCD display, makes navigating through the amplifier's features and settings seamless.

Moreover, the 522ua is equipped with advanced protection circuitry that safeguards the amplifier against thermal overload, short circuits, and other potential issues. This reliability ensures uninterrupted performance during critical audio tasks.

In addition, the amplifier's network capabilities allow for remote monitoring and control through the QSC Q-SYS platform or other compatible systems, integrating it easily into modern audio networks. With its combination of power, reliability, and advanced technology, the QSC Audio 522ua stands out as an outstanding amplifier option for professional audio applications. Whether for live performance, installation, or broadcast, it delivers unmatched performance that audio professionals have come to trust.