The SPL meter should be placed at the primary listening position, at
approximately the height of the seated listener’s head. A tripod is helpful
but with a little duct tape almost anything — a pole lamp, music-stand,
or ladder-backed chair, for example — can do as well. Just be sure that no
large acoustically reflective surfaces obstruct or are near the microphone
element.
Orient the meter with its microphone (usually at one end) pointing straight
up toward the ceiling (not toward the speakers) and ensure that “C”
weighting scale is selected. Set the meter to display 75 dB SPL. On Radio
Shack meters, this necessitates either setting the meter to its 80 dB range
and taking your readings at the -5 point or selecting the 70 dB range and
reading at the +5 point.
SETTING SPEAKER LEVELS AT TEST MODE
While at ‘Speaker Levels’ menu, press the HTR 8 remote’s [TEST] key
activating the T 187’s Speaker Levels balancing test signal . You will hear a
“surf” sound as you step through your speakers (‘test’ appears to the right
side of the current speaker), beginning with the Front Left. If you do not
hear the test signal, check your speaker connections or your ‘Speaker Setup’
OSD menu settings.
Use the remote’s [
D/F
] keys to adjust the loudness of the noise output
from the currently playing channel to the required level (it’s usually
simplest to begin with the Front Left). As you cycle the test signal around
the speakers, the OSD will highlight the currently playing channel. The
“level offset” reading on the right will change by 1 dB increments; ±12 dB
adjustment is available. Press ‘ENTER’ to adjust the next speaker.
NOTE
If you are balancing levels “by ear”, choose one speaker—usually the
center—as a reference and adjust each of the others in turn to “sound as
loud” as the reference. Be sure that you remain in the primary listening
position while balancing all channels.
To produce the same SPL meter reading (or subjective loudness), use the remote’s
[
D/F
] keys to adjust each speaker.
NOTES
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t :PVSTVCXPPGFS JGBOZTIPVMECFTFUXJUIJUTJOUFHSBMDSPTTPWFSEFGFBUFE
or if undefeatable, set to its highest-possible frequency if you are using
the T 187's Subwoofer output. Final subwoofer-level adjustment “by-ear,”
using music and film sound material, is frequently useful.
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TVSSPVOECBDLXJMMOPUBMXBZTDBMJCSBUFUPFYBDUMZUIFTBNFMFWFMPòTFU
readings.
You can exit ‘Test’ mode at any time by pressing [
A
] key, bringing you back
to ‘Speaker Setup’ menu. You can also press the [TEST] key to discontinue
the ‘Test’ mode.
SPEAKER DISTANCE
Your system’s speaker distance settings are a subtle but important
refinement of your setup. Informing the T 187 of the loudspeaker-to-listener
dimensions of each speaker automatically imposes the correct delays,
optimizing imaging, intelligibility and surround-sound ambience. Enter your
dimensions with precision within about 1 foot (30 cm).
SETTING SPEAKER DISTANCE
While at ‘Speaker Distance’ menu, use the [
D/F
] keys to individually set
Front Left, Center, Front Right, Surround Right, Back Right, Back Left, Surround
Left and Subwoofer to the distance measuring from your principal listening
position to the front surface of their corresponding loudspeakers. Distance
can be set up to 30 feet or 9.1 meters Distance can be displayed as feet or
meters selectable at the ‘Unit of Measure’ item.
ADJUSTING THE VOLUME
In addition to the Volume knob, use the HTR 8’s [VOL
D/F
] to adjust the
“master volume” of the T 187 raising or lowering the channels altogether. A
momentary keypress will change the master volume by 1 dB increments. If you
hold down [VOL
D/F
], the master-volume change will “run-on” until the key
is released.
Since recordings vary considerably in overall average level, there is no
imperative to listen at any particular master-volume setting. A setting of -20 dB
may sound “as loud” from one CD or DVD as -10 dB does from another.
The T 187 will power-up from Standby mode at whatever master volume
setting was last used; however, if the prior setting was greater than –20 dB,
the T 187 will power up at –20 dB. This prevents inadvertently beginning a
session at excessive volume.
MUTING THE SOUND
Use the HTR 8’s [MUTE] key to silence all channels completely. Muting is
always available regardless of the source or listening mode selections.
NOTES
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t "EKVTUJOHUIFWPMVNFMFWFMWJBUIF)53PSUIFGSPOUQBOFMWPMVNFLOPC
will automatically release the mute function.
OPERATION
USING THE T 187 – SETUP MENU
22
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