Description
The Heil Parametric Receive Audio System (PRAS) is a state-of-the-art audio system that enhances the internal audio systems of amateur radio, shortwave, commercial, and CB receivers. The PRAS allows radio operators to modify, shape, and improve the audio output of their receivers using three separate equalization controls. Midrange frequencies are the most critical for achieving clear voice articulation in receive audio. The PRAS allows operators to have unique control over these important frequencies. First, operators can adjust the parametric midrange filter (MID FREQUENCY) from 400 Hz through 4 kHz, with the recommended sweet spot being at 2.5 kHz. In addition, operators can control the presence of these midrange frequencies plus or minus 15 dB using the MID GAIN control. Combined with a low-frequency filter (LOW) set at 160 Hz, and a high-frequency filter (HIGH) set at 6 kHz, the PRAS provides operators unparalleled control and quality of their receive audio.
- Customizable Audio Clarity: The PRAS EQ features a parametric equalizer that allows you to fine-tune audio frequencies, enhancing voice clarity and making weak signals easier to understand.
- Enhanced Listening Experience: Designed specifically for amateur radio operators, the PRAS EQ optimizes received audio for clear, high-quality sound, reducing ear fatigue during long listening sessions.
- Multi-Band Control: With adjustable low, mid, and high-frequency controls, this equalizer lets you tailor audio output to suit various voice profiles and environmental conditions, ensuring superior performance across different situations.
- Compact and Durable Design: The PRAS EQ’s rugged construction and compact size make it a perfect addition to any amateur radio station, fitting seamlessly into any setup without taking up too much space.
- Plug-and-Play Convenience: Easy to integrate with most transceivers, the PRAS EQ comes with all necessary cables and connectors, allowing for quick and hassle-free installation.
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