Placement Of Speakers - Altec Lansing 641 User Manual

bass, t r e bl e , or re ar sound. I f any of th e s e functions is s e l e ct e d and not
u s e d f or a f e w s e conds , th e control r e v e r t s back to Mas t e r V ol u m e
control f unction.
Fi v e l e v e l indicators a round th e rotary k n o b s h ow t h e position of th e
control . In th e e xtre m e counte rcl ock w is e posit ion al l L ED's ar e o f f . As
t h e control i s rotate d cl ock w i s e t h e L ED's il l um inat e o n e a t a ti m e unt il in
t h e m axim um posit ion, wh e n al l L ED's are g l owing.
I f one of th e functions buttons h as be e n d e p r e s s e d (Bass, Trebl e o r
Mode ), th e m a s t e r l e v e l rotary control w i l l adj u s t t h e l e v e l of t h e f unction
s e l e cted. Th e gr e e n funct ion indicator as s ociate d wit h t h e function
s e l e cte d w i l l be il l um inat e d. Se e Tre bl e /Bas s S e l e ct ors b e l ow.
Treble/Bass Selectors
Bas s and Tre bl e s e l e ctors are l ocat ed on t h e Syst e m Control l e r. W h e n
t h e Bas s but t on is push e d, th e Bass L ED wil l turn on and th e r ot ary k nob
wil l ch ange t h e l e v e l of bass on al l Sat e l l i t e s , h av ing t h e gre ate s t e f f e ct
on th e S ubwoof e r . Th e L EDs ar ound t h e r ot ary k nob wil l l igh t one at a
t im e to indicat e t h e l e v e l of bass boost or r e duction. Th e ce nte r L ED
indicat e s t h e de faul t pos ition. Pus h i n g t h e Bas s button again wil l
im m e d iat e l y e xi t th is f unction. Th e de faul t bas s l e v e l is at th e ce nt e r
L ED posit ion. To re s e t t h e b a s s l e v e l to th e d e f aul t position, h ol d th e
Bas s button down for th r e e s e conds .
Pus h ing t h e Tre bl e button wil l re s u l t in a s im il ar patte r n. W h e n th e
Tre bl e button is p u s h e d, th e Tre bl e L ED wil l turn on and t h e r ot ary k nob
wil l ch ange t h e l e v e l of tre bl e on al l Sat e l l it e s . Th e L EDs ar ound t h e
rotary k nob wil l l igh t one a t a t im e to indicat e t h e l e v e l of t r e bl e boost or
r educt ion. Th e ce n t e r L ED indicat e s t h e de faul t pos i t ion. Push ing t h e
Tre bl e button again wil l im m e diat e l y e xit t h i s f unction. Th e de faul t t r e bl e
l e v e l is at t h e ce nte r L ED posit ion. To re s e t t h e t r e bl e l e v e l t o t h e
de faul t pos ition, h ol d th e Tre bl e but t on down for th r e e s e conds.
Mode Selector
Th e M o d e S e l e ctor button is l ocat ed on t h e Syst e m Control l e r. Th e
Mode S e l e ctor ch ange s t h e ope r at ion of t h e s ys t e m from one m ode t o
t h e ne xt : St e re o, St e re o x2, and Gam ing. Pre s s i n g t h e Mode button
cycl e s t h r ough t h e t h r e e m ode s . I n St e r e o m ode , th e F r ont I nput pl ays
on th e Front Sate l l it e s and t h e Subwoof e r. In Ste r e o x2 m ode (s y s t e m
de faul t) th e F r ont I nput pl ays on bot h t h e Front and th e Re ar Sate l l it e s
and th e Subwoof e r . In Gam ing m ode , th e Front Input pl ays on t h e Front
Sat e l l it e s , th e Re ar Input pl ays on t h e R e ar Sate l l it e s , and t h e Subwoof e r
pl ays from bot h t h e Front and th e R e a r Inputs .
Rear Volume Level Adjustments
To adj u s t t h e v ol u m e l e v e l of th e Re ar Sate l l it e s , in e i t h e r t h e St e re o x2
or Gam ing m ode , h ol d down t h e M o d e b u tton for approxim a t e l y 3
s e conds . Th e l e f t -m os t L ED around t h e M a s t e r Vol um e Control (rotary
k nob) wil l t h e n be gin f l ashing, indicat ing t h at t h e Mast e r Vol um e control is
now program m e d t o adj us t t h e l e v e l of th e Re ar Sate l l it e s . Th e L E D s
around t h e r ot ary k nob wil l l igh t one at a tim e t o indicat e t h e s t r e ngt h of
Rear s p e a k e r l e v e l . Push ing t h e m ode button again wil l im m e diat e l y e xit
t h i s f unction. I f t h e control is not act iv e l y u s e d f or a s h o r t w h i l e , th e
control r e v e r t s back to Mas t e r Vol um e control f unction.
Since t h e re i s n o re ar output in St e re o Mode , th e re i s n o r e ar vol um e
l e v e l adj us t m e n t in t h i s m o d e . Th e de faul t R e a r Sat e l l it e s pe ak e r l e v e l i s
at t h e ce n t e r L ED posit ion.
Th e rotary knob re v e r t s to Mas t e r V ol u m e control function w h e n a pe riod
of 3 seconds of inact iv ity occurs a f t e r adjus t ing t h e Bas s , Tre b l e , or Re ar
s pe a k e r l e v e l s .
System Reset to Factory Default Settings
To re t ur n t o f actory de faul t s e t t ings, pre s s both t h e Bas s and Tre bl e
but t ons at t h e s am e t im e and h ol d th e m down f or about 3 s e conds.
Th i s w i l l re s e t t h e bas s , t r e bl e , m ode , vol um e a n d re ar vol u m e s e ttings .

PLACEMENT OF SPEAKERS

Al l s t e re o inf orm ation is h e ard from t h e Sat e l l it e s p e a k e r s . Th e
Subwoof e r contains n o s t e re o inform ation and sound is non-dir e ctional .
As a re s ul t , th e Subwoof e r doe s not n e c e s s a ril y h ave to be pl ace d in any
part icul ar re l ations h i p to th e Sat e l l it e s . Pl acing t h e Subwoof e r on th e
f l oor cl os e to th e w a l l or corne r of a room provide s m axim um b a s s
e f f icie ncy.
WARNING:
Th e Subwoof e r i s not m agne tical l y s h ie l de d. Th e
Subwoof e r s h oul d NOT be p l ace d ne ar vide o displ ay de v ice s s u c h as a
TV or com p u t e r monitor. Th e Subwoof e r s h oul d NOT be p l ace d n e a r
com put e r h ard dri v e s . Pos ition th e S ubwoof e r at l e as t 2 fe e t (0.6m )
away from comput e r h ard drive s , or any oth e r m e d i a t h at u s e s m a g n e t ic
e ncoding.
Th e Sat e l l it e s pe ak e rs a r e m a g n e t ical l y s h i e l de d and can be pl ace d cl o s e
to a video displ ay (TV, com pute r m onitor) w i t h out dis torti n g th e v ide o
im age . Th e Front Sate l l it e s can be cl o s e t o t h e m onitor or s t r e tch e d out
a s far as t h e s pe ak e r cords a l l ow. Th e pl ace m e nt de pe nds on wh e r e t h e
l i s t e ne r s i t s . Th e R e a r Sat e l l it e s can be p l ace d s l igh t l y be h ind t h e
l i s t e ne r . Usual l y be s t s t e r e o e f f e ct i s obtained by pl acing s pe a k e rs a s f ar
apart a s t h e ir w i r ing al l o w s . Try using t h is s am e principl e i f th e w a l l -
mount option is u t il i z e d f or th e Re ar Sate l l it e s . Front Sate l l i t e and Re ar
Sat e l l it e s are u s u a l l y pl ace d at e ar l e v e l or s l igh t l y abov e .
Sound ef f e cts m ay vary de pe nding on h ow t h e r e cordings ar e m ade .
Th e re fore , it is not unusual t o r e arrange t h e s pe a k e rs f r o m t im e to ti m e
unti l t h e l i s t e ne r f inds wh ich arrange m e nt give s t h e be s t r e s ul t s .
HOW TO ENHANCE
PRESENTATIONS
WITH DIALOGUE
Th e 641 out put j ack (CONNECTIONS, Ste r e o and St e r e o x2 Se tup, s t e p
4) is conne cte d t o a comput e r s ound card. A CD pl aye r or oth e r audio
s ource can be pl ugged int o t h e unused I nput. Mixing of t h e com pute r
audio output w i t h anoth e r audio source can be accom pl ished by using
t h e v ol um e control or On/ Of f s w i t ch on t h e s e cond audio source . A
typical e xam pl e m ay be as f ol l o w s :
A l e cture r may want t o int e r j e ct dial ogue int o a m ul ti m e d i a p re s e nt at ion.
I f t h e l e cture r h as a wir e l e s s FM microph one s ys t e m t h e output of t h e