Crown Audio CDi 4x600 4-Channel 600W DriveCore Install Amplifier, 70V/100V

Crown Audio CDi4x600: Serious Headroom for Four Demanding Zones

The Crown Audio CDi 4x600 is a four-channel DriveCore Install power amplifier rated at 600 watts per channel, the mid-power step in Crown's four-channel install line for rooms that ask more of their audio. Doubling the per-channel power of the 4x300 changes what a single amplifier can cover: a restaurant's dining room and a lively covered patio, a house of worship's main seating and its overflow hall, or a set of larger classrooms that need clean speech at the back row. Each channel still runs 70V, 100V, or low-Z, so you can mix a dense ceiling-speaker line with a pair of foreground loudspeakers on the same box. It is the amplifier for when background music has to become foreground without strain.

Headroom That Keeps Speech and Music Clean

The extra wattage per channel is not about being loud for its own sake — it is headroom, the margin that keeps transients clean when a room fills with people and absorbs sound. In a busy restaurant the same playlist that sounded crisp at opening turns muddy at capacity unless the amplifier has power in reserve; the 600-watt channels hold that clarity. For a house of worship, that reserve carries the peaks of live speech and music without the compression you hear from an underpowered amp. More power, used as headroom, simply means the system sounds effortless at the volumes the space actually reaches.

DriveCore Technology, Built to Run All Day

Every channel is powered by Crown's DriveCore integrated circuit, the same efficient output engine that runs across the CDi and DriveCore Install families. It fuses signal and amplification into one highly efficient stage, so even at 600 watts a channel the amplifier draws modest current and throws little heat into the rack. That efficiency matters most in exactly the venues this amp targets — the ones running audio open-to-close, seven days a week — where a cooler, lower-draw amplifier means lower operating cost and a longer service life. Fewer components also mean fewer things to fail across the decade an install is expected to last.

Complete Onboard DSP for Every Channel

The CDi 4x600 puts a full processing suite on each input and output: crossovers, multi-band parametric EQ, delay, and limiting, all stored inside the amplifier. A single unit can therefore high-pass the patio speakers against wind noise, EQ the boomy corner of a dining room, delay a zone to align with another, and cap the level so a guest's phone plugged into the aux never overdrives the system. Preloaded loudspeaker tunings give each channel a matched starting point, cutting commissioning time on site. The result is a self-contained four-zone processor and amplifier in one chassis.

Direct-Drive 70V, 100V, and Low-Z

Like the rest of the line, the CDi 4x600 drives constant-voltage lines directly — 70V or 100V straight off the channel, with no output transformer to add weight, cost, or high-frequency loss. Switch a channel to low-impedance operation and it will happily anchor a 4-ohm subwoofer or a pair of 8-ohm mains for a stage or a bar. That per-channel choice lets one amplifier serve a mixed system: distributed ceiling zones on the constant-voltage channels, and a punchy foreground pair on the low-Z channels. For a venue that is part background music and part live event, that versatility is exactly what the job needs.

Analog In When the Rack Is Local

The CDi 4x600 is the analog-input member of the mid-power pair, taking balanced audio on Phoenix connectors for systems where the sources sit in the same rack. If a project's mixer, media player, and paging live alongside the amplifier, there is no reason to design a network audio backbone — analog is the faster, simpler, and fully capable path. It keeps the signal chain short and the troubleshooting obvious. When the same room later joins a networked building, the CDi 4x600BL delivers identical power over BLU link.

Networked Control and Monitoring

Control is networked even though the audio is analog: the CDi 4x600 sits on a standard TCP/IP network and is configured, monitored, and locked down through HiQnet Audio Architect. An integrator commissions all four channels from a laptop, saves the settings, and hands the client a system that reports its own faults rather than waiting to be discovered. Front-panel lockout keeps a careful tune safe from well-meaning staff. For a multi-room venue or a chain location, remote visibility into the amplifier is what keeps the audio consistent long after the install truck leaves.