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You might try taking the woofer out by unscrewing all the screws that are holding it in from the front.
As for the grill repair? Are you handy with a hot glue gun and stapler?
Try stretching the fabric over the speaker frame and securing it with hot glue and/or staples. If you use a stapler, get one that fires flat staples not the rounded ones.
If the fabric is torn, find speaker fabric that is "acoustically transparent" commonly available from many sources in many fashionable colors.
you will have to remove the existing speaker fabric without damaging the frame. Scrape off any adhesive residue and remove any and all staples install your fabric by stretching and gluing/stapling the new fabric over the frame.
In my case the speaker only played the higher frequencies but not the low mid range to base. Most likely your speaker is "blown". Outdoor use is hard on electrical components. The fix is easy. The free space 51 speaker is identical in size to the standard Bose 901 4 1/2" speaker. You can buy a Bose or a good quality knock off (either way they will need to be broken in before yielding the best sound). It is not clear to me whether the original Bose uses a special moisture resistant cone. I treated my replacement with a light coating of silicone spray (for upholstery) carefully protecting the foam surround and cap at the center.
Just unscrew the three screws holding in the plastic grill in front of the speaker (using a nut driver or socket wrench). The speaker will drop out. Be careful with the foam wrap around the wire as it tends to be fragile and greasy. Solder in the new speaker making sure you get the polarity right (although for outside use this is probably irrelevant). I would test the speaker in place before soldering just to make sure. Reassemble and break in the speaker. Again I don\'t know know well the replacement will weather the elements. Keep your finger crossed.
Use a scribe or something with a hook on the end that will fit into the holes on the grill. Make sure you use the hook as close to any one of the four corners and pull until the grill cover pulls out. it is just a black pliable adhesive that holds them in.
If you can remove the rear cover check to see that the speaker mounting screws or nuts are tight. If they are the speaker is blown or defective. I would contact Boston Acoustics if it may be still under warranty or can be repaired.
Get yourself a very thin and small screwdriver. The type that comes in the eyeglass repair kits. Remove the cloth/plastic grill from the front of the sound bar. Locate the IR sensor in the center of the bar. Pry the dark red filter off the IR sensor and leave it off.
Problem solved, greatly increases range. I have read that there is a clear replacement cover you can buy but whats the point?
I had the same problem.
Step one: pop of the grille with a screwdriver or knife inserted from the bottom so that any marks will be hidden when you get the two halves back together.
Step two: If the speaker is held in by screws, you are lucky. Just unscrew the speaker and remove it. If the speaker isn't held into the case by screws, it is a newer model that is glued to the back cover / box. You can separate the glue with a bread knife or thin screwdriver (I used a paint scraper and thin screwdriver). Be careful to work around all four sides. Also, there is a small (about 1/4" long) plastic bump in the center of each of the four sides that clips into a matching groove in the speaker, so you will have to spring apart at least two adjacent sides at the same time to release the speaker from the cover easily.
Step 3: Once you have the speaker out, remove the acoustic sponge, and sit the bottom half on a solid table. Make sure the rubber gasket between the speakers is seated properly and note the position of the 3 notches in the hole of the bottom speaker cover. Place the top speaker cover in place and insert the white plastic 3 pronged clip though the the hole so that the prongs match the notches. Press down hard with two thumbs and it should snap into place.
Step 4: Replace the sponge and push the top speaker back into the cover. Replace the screws if you had them. Otherwise you can glue it again but the clips are quite solid if not damaged by the removal so you can save some effort the next time it happens by leaving it unglued, and just snapping the speaker into place.
Step 5: push the grille back on.