Well, if you are old enough to remember the large portable radio/tape player/CD player that had a set of two speakers on each side of the unit, you remember one version of a boombox. It was probalby called that because of the noise emitted from it and the fact that it was loud - booming.
We offer a boombox ad on our website. It is rectangular so, thus a box. It doesn't have sound but the placement of it on our homepage is very attention getting. Therefore, we refer to these large, attention-getting ads on our homepage as boomboxes.
The key words are attention getting. We have always touted our print advertisng as attention getting and awareness building. For many years, the generation of sales leads could be directly attributable to print advertising. Then, along came digital advertising an much of the lead generation went to clicks.
Actually, the boombox ads do a lot of the same work as print ads do in that they get attention. They are visual ads that get the attention of web readers just as print ads get the attention of magazine readers. It is not a replacement but a supplement to our attention-getting advertising opportunities. Would you like to try one?