background image

Positioning Your Subwoofer

-6-

FF12 Subwoofer

More Bass Output; Least even bass response

FF12 Subwoofer

Moderate Bass Output; More even bass response

FF12 Subwoofer

Lowest Bass Output; Most even bass response

Subwoofer Placement

There  is  no  argument  among  audio 
professionals that the loudest bass output 
from  a  subwoofer  comes  from  corner 
placement.  The  sound  flaring  outward 
from  a  room  corner  focuses  low 
frequencies  giving  them  no  place  to  go 
but  toward  you.  In  the  case  of 
subwoofers, there is no automatic penalty 
in  giving  overall  balance  for  this  peak 
bass,  since  your  main  speakers  can  be 
located  elsewhere.  It  still  may  be  too 
much  bass  for  your  room  or  (more 
particularly) your favorite listening spot in 
the room, but unless you are seated in a 
“void” spot, where sound from the sub is 
cancelled or diminished by out-of-phase 
reflections from elsewhere, there should 
be plenty of bass from corner placement.

If you are seated in such a void spot, your 
only real choices are to move either the 
subwoofer or your listening position until 
the bass returns to the point that satisfies 
your listening criteria. Turning up the level 
control  or  changing  the  crossover  point 
almost  certainly  won't  help  much.  But 
flipping  the  phase  control  180  degrees 
sometimes  may  make  a  difference, 
especially  if  the  void  is  a  product  of 
cancellations  caused  by  interaction  with 
low frequencies from your
main speakers.

Using Two Subwoofers

If  you  choose  the  use  two  woofers,  the 
sound output will double (an increase of 
5dB). Locate the woofers with one in each 
corner  and  experiment  with  the  location 
and  phase  control  to  achieve  the  best 
bass response.

Always  drive  each  woofer  through  the 
Left/Mono  input  even  though  you  are 
driving  one  woofer  on  a  right  channel 
drive  and  the  other  with  a  left  channel 
drive.  If  your  pre-amplifier  has  a  single 
Sub/LFE output, use a 'Y' cable to split it 
into two outputs.

Summary of Contents for Nova FF12

Page 1: ...Nova Power From The Heavens Nova FF12 Front Firing Powered Subwoofer Operation Manual Technical Guide www earthquakesound com Sound That Will Move You ...

Page 2: ...ake High Fidelity sound systems you are about to experience the FF12 subwoofer This system is designed to dramatically enhance your enjoyment of music and films at home by adding power and impact to low frequency sound effects Earthquake Sound Corporation is located in the heart of the Silicon Valley It specializes in manufacturing high end home and car audio products ranging from the smallest dri...

Page 3: ...ng materials methods Bent speaker frame broken speaker connectors holes in speaker cone surround dust cap burnt speaker voice coil Fading and or deterioration of speaker components finish due to improper exposure to elements Bent amplifier casing damaged finish on the casing due to abuse misuse or improper use of cleaning material Burnt tracers on PCB Product part damaged due to poor packaging or ...

Page 4: ...r 400 watts Frequency Response 25 125Hz Dimensions Height 16 15 16 430mm including 5 8 15mm legs Width 14 3 16 360mm Depth 15 3 4 400mm including amplifier controls Weight 37 lbs 16 8 kgs Power Line Voltage 115 230 AC 50 60Hz Output Levels Greater than 130dB peak SPL includes room gain from 25Hz to 125Hz ...

Page 5: ...ected 0 180 Phase switch for precision bass response control Variable 12dB per octave low pass filter R a n g e 4 0 1 8 0 H z Recommended general setting at 2 o clock 115 230V power connector with built in fuse for max protection Low level RCA a u d i o i n p u t in high pass mode 100Hz The 100Hz high pass output is the perfect source to feed a center channel amp Full range speaker outputs Connect...

Page 6: ... from elsewhere there should be plenty of bass from corner placement If you are seated in such a void spot your only real choices are to move either the subwoofer or your listening position until the bass returns to the point that satisfies your listening criteria Turning up the level control or changing the crossover point almost certainly won t help much But flipping the phase control 180 degree...

Page 7: ...vel input of any of the front speakers to your FF12 For ease of wiring pick the speaker that is closest to the subwoofer Simply piggy back a wire from the speaker to the subwoofer and you re up and running Note The high level input for satellite speakers is fitted with a high pass filter 70Hz It is only powered when the main or front speaker signals are driven into the HIGH LEVEL INPUT These termi...

Page 8: ...Sound That Will Move You 2727 McCone Avenue Hayward CA 94545 USA US Toll Free 1 800 576 7944 Tel 1 510 732 1000 Fax 1 510 732 1095 www earthquakesound com ...

Reviews: