Madrigal Imaging Audio/Video Preamplifier manual 15SURROUND MODE SELECTOR, 16PATH SELECTOR

Conversely, if you rarely see the green LED illuminate during loud passages, you should increase the Input Level to compensate for the relatively low level of the source. Press the input level button, followed by the volume + button to increase the input level.

15SURROUND MODE SELECTOR

Pressing this button cycles among the various surround modes of the PAV:

•THX cinema — for movies which were mixed for theatrical re- lease; both THX cinema and pro logic indicators are lit, confirm- ing that Pro Logic is in use whenever the THX cinema mode is selected.

•pro logic — for all other surround-encoded material, such as many TV shows and some music recordings; only the pro logic indicator is lit.

•stereo surround — for enjoying two-channel stereo recordings using all loudspeakers; the stereo surround indicator is lit.

•mono surround — for monophonic recordings which would ben- efit from some degree of additional ambience or spaciousness, such as many classic movies and some sporting events; the mono surround indicator is lit.

•surround off — to return the system to two-channel stereo; the surround off indicator is lit.

•mono —a “true” mono, reproduced only through the center chan- nel speaker and subwoofer. Noisy mono soundtracks often enjoy significant noise reduction by being reproduced in this mode; both mono and off indicators are lit to denote the fact that the surround circuitry is disengaged, leaving you with a “true” mono.

16PATH SELECTOR

Pressing this button cycles among your various signal path options:

•main — the home theater; this path determines which video and audio sources are sent to the Main outputs on the back of the PAV. Sources selected for the main path are indicated in yellow on the front panel LEDs. (If the LED blinks red, it is indicating a tape loop condition caused by the same source having been se- lected on the record path; deselect the source on the record path first, then reselect your main source.)

•remote — determines which video and audio sources are sent to the Remote outputs on the back of the PAV, to be sent to another system elsewhere in the house. These sources are indicated in green on the front panel LEDs. The remote path may also be used as a secondary Record Output path if necessary.

•both — the audio and video signals for both main and remote paths may be selected at the same time, for your convenience; as when entertaining, perhaps, for whole-house background music. Sources selected for “both” main and remote paths will be indi- cated by yellow LEDs (the same as for the main signal path).

•record — determines which video and audio sources are sent to the various record output jacks. The source selected for the record path is indicated on the front panel in red LEDs. As a safety measure, the PAV will prevent the selection of any record- able device as its own source (to avoid feedback loops). If such a selection is attempted, the PAV will cause the appropriate LED to

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