Earthquake FF-12 User Manual download pdf (Page 6)

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.

1 2 3 4 5 6 7 8

Comments to this Manuals

No comments