ESTRO Passive Series speakers are part of a wider range of HELVIA product line. It offers 5 models, from 6.5” to 15”. These speakers have been designed to be lightweight, reliable and offer high-level sound in both fixed installation and portable applications. Powers ranging from 130W to 350W RMS, selected transducers, advanced housing material are the ingredients wisely combined to offer the best to installers and musicians. ESTRO speakers can be suspended through specific brackets (not included), with eye-bolts (not supplied) and the M8 suspension points, or placed on a speaker stand using the D36mm hole on the bottom.