Meyer Sound Amie-Sub, Руководство по эксплуатации

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AMIE-SUB OPERATING INSTRUCTIONS
18
OPTIONAL INTEGRATION INPUT MODULES
Two optional integrations modules are available for the
Amie-Sub loudspeaker: a 7.1 Integration Module and a
2.1 Integration Module (see “2.1 Integration Module
Operation” on page 20).
7.1 Integration Module Operation
The 7.1 Integration Module (Figure 11) features industry
standard multi-pin DB-25 female connectors and can be
used for 5.1 or 7.1 configurations with third-party, high-
quality, 8
- channel, DB - 25-to-XLR cables (not included).
NOTE: The DB-25 multi-pin female connectors
are wired to an analog pinout that has become
the standard in the audio industry; it is
sometimes referred to as the Tascam® DTRS pinout.
Audio Input (DB-25 female)
The DB-25 input accepts up to seven channels of audio
(L, C, R, and Surround) for output to Amie loudspeakers, as
well as an LFE input.
Audio Output (DB-25 female)
The DB-25 output provides:
•
Up to seven channels (L, C, R, and Surround) to drive
Amie loudspeakers. These signal paths are passive—no
internal processing is performed between input and loop
output.
•
LFE + Bass Management output channel to loop
additional Amie-Sub loudspeakers. This output either
provides the input passed without any internal signal
processing (Bypass mode) or an LFE + Bass
Management, internally processed version of the input.
LFE + Bass Management
For the LFE output, there are three controls on the user
panel that affect operation (see Figure 13 and Figure 14):
•
LFE switch: the user can selectively add 10 dB of gain by
setting this switch to the “+10 dB” position.
•
LFE + Base Management Dial: the user can add ±6 dB
gain/attenuation to the output (of the internal signal
processing path) at the LFE loop output and at the
Amie
- Sub driver by rotating this dial to the appropriate
position.
•
Bass Management Switch: When switched to the
Bypass position, the signal passes from input to the
subwoofer driver (and to the output loop) without any
internal signal processing.
When switched to the ON position, the subwoofer driver
and output loop receive a combined signal consisting of
up to seven channel (L, C, R and Surround) inputs
summed, low-pass filtered and then further summed
with the (selectively) 10 dB-boosted and phase
- matched
(all - pass filtered) LFE input.
The result of this last summation may be boosted or
attenuated by the ±6 dB LFE + Bass Management dial.
NOTE: The option to boost the signal by 10 dB
is provided for playback of recorded audio in
situations where the LFE channel was
recorded 10 dB lower than the other channels and
where the source equipment has not already restored
this 10 dB.
NOTE: The purpose of the all-pass filter is to
phase - match the LFE channel signal with the
low - pass filtered and summed L, C, R and
Surround channel signals.
Figure 11: 7.1 Integration Module
Figure 12: DB-25 Pinout (female)
H = HOT
C = COLD
G = GROUND