Processor Use: Configuring the Processors (Discrete 2.1)

NOTE! The factory setting for all eight Preset memories is wire-through. Signals are passed from input to output without any processing. Each Processor must be config- ured as desired by the user. You may select configurations from the sample files (*.cfg) within Signal Manager or create your own.

How the Processors are configured is dependant on the system setup and desired results. For example, a discrete 2.1 system requires a different signal chain than a mono 3-way stack. Decide how your system will be set up before starting to configure the Processors. The following are examples only. They are to be used to help understand the basic procedure for using the 215PCM in most circumstances.

Example 1- Discrete 2.1

Discrete 2.1 uses 3 channels of audio. The 2 main channels are typically referred to as “left” and “right” and are full-range program material. These channels are driven by the 215PCM Top Box Outputs. The Subwoofer is the third channel and its input is supplied by a separate track or channel. The Mode Switch should be set to Discrete and all three inputs will be used. An example of a signal chain that might be used for the Top Box Processor in this situation is:

The settings for the various high-pass filters and equalization will be a function of the speakers being driven, the type of crossover desired (interaction with Sub), and desired results. The high-pass filter is usually used to remove low-frequency content from the Top Boxes. This can be done simply to protect the speakers from cone overexcur- sion or to remove overlap between the Subwoofer and Top Box responses.

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QSC Audio ISIS 215PCM user manual Processor Use Configuring the Processors Discrete
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ISIS 215PCM specifications

The QSC Audio ISIS 215PCM is a powerful loudspeaker designed to meet the demands of professional audio applications. Known for its exceptional sound quality and robust construction, the ISIS 215PCM is engineered to deliver a superior listening experience in various settings, including live events, concerts, and installations.

One of the main features of the ISIS 215PCM is its dual 15-inch low-frequency drivers, which provide deep, resonant bass and a wide dynamic range. This design allows for high SPL (Sound Pressure Level), making it suitable for large venues. The enclosure is strategically designed to enhance performance by minimizing distortion, thus ensuring clear audio reproduction even at high volumes.

The ISIS 215PCM is equipped with a high-frequency compression driver coupled with a wide dispersion horn. This combination yields excellent high-frequency response and seamless integration with the low-frequency drivers. The dispersion pattern has been meticulously engineered, enabling consistent sound coverage throughout the audience area, which is essential in live sound applications.

In terms of technology, the ISIS 215PCM features advanced acoustic design principles that optimize both performance and durability. The enclosure is constructed from high-grade plywood and reinforced to withstand the rigors of touring and installation, while the dual ports facilitate enhanced airflow and reduced turbulence, resulting in accurate sound reproduction.

Additionally, the loudspeaker employs a sophisticated passive crossover network that effectively separates frequencies, allowing each driver to operate within its optimal range. This technology minimizes phase issues and ensures that the transitions between the low and high frequencies are smooth and natural.

Portability is another significant characteristic of the ISIS 215PCM. It includes robust handles for easy transport and installation, making it a great choice for sound engineers and technicians who need to set up and break down equipment regularly. The professional-grade connections further enhance convenience and reliability in diverse applications.

Ultimately, the QSC Audio ISIS 215PCM is a remarkable loudspeaker that combines innovative technologies, premium materials, and thoughtful design. It is ideal for audio professionals seeking a reliable solution that delivers exceptional sound quality and performance. With its versatility and robust features, the ISIS 215PCM stands out as a formidable choice for both live sound and permanent installations.
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