Commercial amplifiers and zone controllers for fixed installation, spanning Optimal Audio’s Zone series, Biamp Apart Revamp Class D units, Cloud DSP amplifiers, Lab Gruppen commercial models, Shure’s PoE-powered Dante amplifier and Linea Research platforms for larger systems. Both 100V line and low impedance outputs are covered, in one and two rack unit formats from two to eight channels.

Match the amplifier topology to the speaker plan first: 100V line models such as the Revamp 4240T and Lab Gruppen CA2402 drive long distributed runs, while switchable units like the Cloud CVA2500 handle low-Z foreground zones and 100V duty from the same chassis. If the brief includes source selection or wall panel control, an amplifier and controller in one, such as the Optimal Audio Zone 4P or Zone 8P, replaces a rack of separates and simplifies commissioning enormously. Networked audio changes the wiring entirely; the Shure MXN-AMP takes Dante audio and PoE+ power over a single network cable, which suits ceilings and meeting rooms where a mains feed at the amp position is awkward. Count channels against zones with a spare, and check standby power behaviour on energy-conscious sites.

Matching speakers, subwoofers and wall controllers sit in the neighbouring install categories, and we can advise on integrated zone control against separates for a given brief.