MartinLogan Grotto [13/24] Installing grotto in a cabinet

PLACEMENT

Placement 13

Generally, subwoofers have the most output when placed in

the corner of a room. However, this can also exaggerate the

subwoofers output making blending difficult. We recom-

mend starting by placing the Grotto in a corner. If, after the

full range of tuning techniques have been employed, the

subwoofer sounds like it has too much upper bass energy try

pulling it away from the wall, toward the listening position.

This will lessen the reinforcement of these problematic fre-

quencies from the wall and likely smooth out the response.

Repeat the tuning techniques with the woofer controls after

you move it (see figure 14).

Installing Grotto in a Cabinet

Occasionally people need to place their subwoofer(s) inside

of cabinetry. It is recommended that the Grotto, as with any

quality subwoofer, has a minimum of three inches of open

space between the cabinet and the front and back sides

(see figure 15).

Ask Your Dealer

Your MartinLogan dealer can suggest many options for

optimal subwoofer placement. They also have many tools

at their disposal, such as experience, familiarity with the

associated equipment and even sound analysis equipment

which may make the task of determining optimal subwoofer

placement easier.

Enjoy Yourself

The Grotto is a very refined subwoofer and will benefit

from care in setup. With the above placement tips in mind

you will find, over months of listening, that small changes

can result in measurable differences. As you live with your

subwoofer, do not be afraid to experiment with positioning

until you find the optimal relationship between your room,

settings and subwoofer that gives you the best results. Your

efforts will be rewarded.

Listening Position

Figure 14. Grotto Subwoofers as the LFE (effects) channels, MartinLogan

Clarity™ speakers as front and surround (effects) channels, MartinLogan

Fresco™ as the center channel. Note the corner placement of the Grotto

at the front of the listening room.

Figure 15. Placing the Grotto in a cabinet requires a minimum of three

inches of open space on the front and back.