This 13.6mm x 9.6mm speaker could be classified as a "sugar cube" speaker. This style of speaker is often feature in cell phones and tablets and performs slightly differently from standard speakers. This style of speaker REQUIRES mounting with a baffle to produce much sound at all, but once they are mounted they produce significantly more sound than you might expect. Try them out in your space restricted installations.
ESU
ESU ~ LokSound V5.0 Micro Next18 ~ DCC/MM/SX/M4 ~ With Sugar Cube Speaker ~ 58818
Was:
$134.99
Now:
$99.72
ESU
ESU ~ LokSound Micro Decoder ~ DCC/MM/SX/M4 ~ Open Wires ~ W/Speaker ~ 58813
Was:
$139.99
Now:
$98.23
