For installations that require extended bass response from an ultra-compact enclosure with flying and wall-bracket mounting capabilities. SI-15B has same shape and size as the SI-15 full range which is easy to configure the system as stack or cluster rigging.
The SI-15B is an compact high-efficiency sub-bass system. It has been designed for use with the SI-28, SI-12 and SI-15 and other professional full range loudspeakers in situations where extended low frequency output and increased system headroom are required.