Repairing the veneer would be no problem:
Clean the chip with a toothbrush.
Fill the chipped area with a good wood filler (for example Famowood). Fill slightly raised above the surface and extend out over the veneer a tiny bit.
Smooth the filler with a razor blade to rough it in, then 400 grit sandpaper to finish. Stay within the confines of the repair area. While sanding stop frequently and feel the surface. You will see the edges of the filler become transparent as you sand closer to the finish. DON'T REMOVE ANY OF THE FINISH AROUND THE REPAIR AREA.
Mask the area within about an 1/8 of an inch all the way around.
Spray on a few coats of color toner. Mohawk makes toner. Try to match as close as you can. Custom mixing is probably the best way to go. Apply as many thin coats as needed to bring it to the right tone. Use your finger to remove toner that is getting on the original finish.
After it is matching, use a needle to draw in the grain. Draw lines and dots that make up the grain. You get to be artsy!
After you are satisfied with the grain, take some flat black spray and put some on a paper towel and color the grain by rubbing it with the paper towel.
One more quick light shot of toner. No masking tape this time!
Finally you need to get a uniform sheen as the rest of the speaker. Use steel wool. I suspect your speaker was finished with boiled linseed oil, so a light coat of BLO. That ought to do it.
Of course you could hire someone to do the repairs.