What does FRC stand for?

Through a unique frequency response curve as well as through audio enhancement algorithms in the audio processors, Plantronics headsets make calls significantly more intelligible.

Examining the frequency response curves generated by the Sound Equalizer, I saw peaking of as much as 6dB when the low crossover frequency was recommended.

Frequency (Hz) Loss (dBm) 404 26 100 414 280 428 TABLE 1 These readings are plotted on the frequency response curve for an unloaded VF line in Figure 2.

The AN-1000X was selected because it offers a flat frequency response curve that delivers clear sound reproduction in the vocal range, because it contains a 50-watt internal amplifier that allows it to receive a line level signal from the intelligence system and provide the decision-makers with the ability to control volume levels and sound quality, and because it contains a magnetically shielded speaker that eliminates interference with other electronic or video devices.

The bottom curve shows an average of the best 5 individual frequency response curves made over a variety of vertical angles.

[FIGURE 1, 5 OMITTED] The Beta 40s have some small energy loss over a broad range of the upper midrange as shown in the average of the horizontal frequency response curve (Figure 3 bottom), making them less hyper and more relaxed-sounding than some "audiophile" speakers.