Heil PRAS EQ (Parametric Receive Audio System Equilizer)

Heil PRAS EQ (Parametric Receive Audio System Equilizer)
Part Number: HEIL-PRAS-EQ
£269.95 ( £224.96 EXC. VAT )
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Product Information
  • Overview
Parametric Receive Audio System Equilizer (PRAS EQ)

The Heil Parametric Receive Audio System Equalizer (PRAS EQ) is a state-of-the-art audio processer that enhances the internal audio systems of amateur radio, shortwave, commercial, and CB receivers. The PRAS EQ allows radio operators to modify, shape, and improve the audio output of their receivers using three separate equalization controls.

Parametric Equalization Controls

Midrange frequencies are the most critical for achieving clear voice articulation in receive audio. The PRAS EQ allows operators to have unique control over these important frequencies. First, op- erators can adjust the parametric midrange filter (MID FREQUEN- CY) from 400 Hz through 4 kHz, with the recommended sweet spot being at 2.5 kHz. In addition, operators can control the level 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 EQ provides operators unparalleled control and quality of their receive audio. See the following page for recommended Initial Set- tings, and suggested settings for common receive audio issues.

PRAS EQ Suggested Equalization Control Settings

— The following tables outline common Receive Audio Issues, and provide suggested equalization control settings for each of these issues.
— Every suggested solution is relative to the suggested Initial Settings. Please start your setup with the suggested Initial Settings table, and adjust your PRAS EQ for each receive audio issue relative to these starting settings.
— For each suggested solution, adjust the equalization controls in the suggested order [(1), (2), (3)]. Each subsequent adjustment will be relative to the adjustment before it. Therefore, you might find that only one or two suggested adjustments are necessary in some instances.
— Each suggested solution is just a starting point for common receive audio issues. Adjust the equalization controls up or down thereafter depending on the characteristics of your receive audio

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