Adcom GSP-560 - Manual (Page 9)

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If you’re not using a cen>tef'Channel speaker, piaee the “Centoi Mode” sft^itch® in the top or “Phantom” position.
This position ^Its tl^№l,pg|gd^p^||^centerchanndoutput bett^ both main speakers to synthesize a center
The “Phwttom" posttan ¡ywides anekcettent interim step in creating a home theater system. It allows you to benefit
from the improved toc^ii^iohinheriftitta'Pm Logic deciding; t-towever,'the “Phantom” position is not as effective
as using a center chanheLspeakeT; fnliiakssni&imagds are rrtafe vague spd ttey shift as you move about the room
rather thdrt bein^
^rdem* Wattdng^reconwnpnd a^^ channel speaker. Your ADCOM dealer
’ ■■ ¡h . ..r
Rearspeaker^ ^
Pro Logic cteccdp^'ls'
processed' sgr#l|'dtStff péê®
i'll df“mUiWehc«iited material. However, the rear output of the
fhA'lhal» tiattt^r'speakers, at least when reproducing Pro Logic
1 nftjch lo^f than 1C30'te.#’’fhudh hi’^ier than 7 kHz
This has led sxne pô(0e:t& pûùtde^fM'àufrowxf leakers dah be ine^nsfve •'atterthoughts* in a home theater
system. Such is definitely WOT thé ca«©. While Pro Logic processedYear channel information doesn’t contain
extended bass or treble, the surrodnd Speakers should tnm fairly flat frequency response over the required
bandwidth. Inex^nsf^
speakers ùètiaîly exhibit \^ry uneven or “peaky" fesponse that can älter the effects intended
by the creators of Dolby Surrdund'eftcbded'rmteridt. . :
ij;
modes (“S CHannif Maffix” and “S Channel Sfereo“) that send full-bandwidth signals to the rear channels, Here,
severe speaker fimtetionS will be' even more dSvfous and detfimental. |Again, your ADCOM dealer will show you
appropriate choices. ' • -
Once you've chosen your rearchanrielspeakefs, the nextissi^ is placerrient - where doyou put them? Unfortunately
there are no hard and fa^ rules to make ybur if© easifer liere. Cenefsiy, tjie surround speakers should not be aimed
directly at you.' Cotnrrtbn' practice h^sthem widely spaced’high on the rear wall of your entertainment room. A
variation? Place them on the Sidewalls, sllghtlybehfnd arct above yourfavorite listening and watching position. Some
experitmentation Will probably be peiSassary. ' lfioyl
’’ '
woLuMisiQ«^^ : ' Y'"
Nothing to add here except fo port but that this is a standard safety|procedure designed to protect amplifiers,
speakers andibfcddrsefyoufearsinte unlikely event of amis-matched'connectionoramalfuhctioning component.
10) IWmLtURN-ON
When 5 »u plug the GSP-560 into an AC outlet, an internal microprocessor automatically activates to control initial
operation. Pushing the front panel ‘Vower” switch ® or the ‘^ower”' button on the remote controller® turns the
unit on.i The^oiufer
liuBcalw LED” ©changes from yellow (standby status) to red (fully operational status,) the
red LEDori tie “MatterVolume” control ©turns on, and all processor and amplifier stages are fully energized. After
a brief Interval to insure stebte operation, relays connect the line level stages to the rear panel RCA jacks and power
amptifierinputs.
NdtethatADCOMdoesnotplacerelaysattheoutputoftheamptifiersthemselves. Ourconsiderable
experience suggesis that amplifier giiput relays inevitably malfunction or degrade sonic performance.
When theGSP-500 is’ttrfiiedoiff. Ihd rel%s open immediately to mute all fine outputs, including the internal connections
to the power amplifiers, -This protects
agdinSt any transierit pops that may be unsettling.