Meyer Sound LYON-M, Руководство по эксплуатации, Страница: 15 / 46

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CHAPTER 3: AMPLIFICATION AND AUDIO
LYON’s drivers are powered by a proprietary three-channel
amplifier with bridged MOSFET output stages. The audio
signal is processed with an electronic crossover plus
correction filters for flat phase and frequency responses, and
by driver protection circuitry. Each channel has peak and rms
limiters that prevent driver over-excursion and regulate voice
coil temperatures.
The LYON user panel (Figure 9) includes Input and Loop
output connectors for audio, Limit and Active LEDs, and RMS
connectors and controls (see Chapter 5, “RMS Remote
Monitoring System”).
AUDIO CONNECTORS
LYON is available with XLR 3-pin or 5-pin connectors for
audio Input and audio Loop output (Figure 10 and Figure 11).
XLR 5-pin connectors accommodate both balanced audio
and RMS signals.
Audio Input (XLR 3-Pin or 5-Pin Female)
The XLR 3-pin or 5-pin female Input connector accepts
balanced audio signals with an input impedance of 10 kOhm.
The connector uses the following wiring scheme:
• Pin 1 — 1 kOhm to chassis and earth ground (ESD
clamped)
• Pin 2 — Signal (+)
• Pin 3 — Signal (–)
• Pin 4 — RMS (polarity insensitive)
• Pin 5 — RMS (polarity insensitive)
• Case — Earth (AC) ground and chassis
NOTE: Pins 4 and 5 (RMS) are included only
with XLR 5-pin connectors.
Figure 9: LYON User Panel
Figure 10: XLR 5-Pin Audio Connectors, Input and Loop Output
Figure 11: XLR 3-Pin Audio Connectors, Input and Loop Output