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PROCISE™ Surround Sound Amplifier Crestron PROAMP(I)-7X400
The Power to Inspire
The PROAMP-7X400’s custom hybrid design achieves the warmth and neutrality of
a Class AB amplifier with all the efficiency benefits of modern Class D.
The PROAMP-7X400 delivers 400 Watts at 8 Ohms, and 700 Watts at 4 Ohms, per
channel. Twin 1.8 kVA toroidal power transformers direct pure, continuous power to
its seven mono amplifier channels, each with its own isolated power supply featuring
an immense 168,000 µF total capacitance for wide dynamic range and headroom.
Efficiency
An ultra-efficient circuit and chassis design enables the PROAMP-7X400 to produce
greater output power in considerably less space compared to other amplifiers. The
PROAMP-7X400 accomplishes its class-leading performance in a mere five rack
spaces while maintaining effective cooling with no need for extra clearance above or
below.
Pairing
Together, the PROAMP-7X400 and PSPHD processor possess the unique ability to
operate as one, affording functionality unattainable from any other amp/preamp
combination. Through a simple Ethernet connection, the two components become
paired, enabling seamless control and monitoring of the amplifier through the
PSPHD’s front panel. While the PROAMP-7X400 provides indication of signal and
fault conditions on its own faceplate, you can actually confirm the specific fault
condition, check the real internal temperature, and monitor the output level of each
amp channel on the face of the PSPHD. Pairing the two components also streamlines
remote control and monitoring through a Crestron control system, providing
programmers with a unified device interface for all functions.
Protect, Monitor, Control
To help ensure the most seamless user experience and long-lived operation from
your amplifier, the PROAMP-7X400 provides several ways to assume control of its
essential functions and keep tabs of its operating status and health. On its own, the
PROAMP-7X400 possesses the intelligence to protect itself from many types of
faults including over temperature, over current, over voltage, under voltage, and DC
offset on any channel. Its front panel indicators help alert the user to any fault
condition, and provide verification of signal activity and clipping. More detailed
status monitoring is available when paired with a PSPHD processor.
For the greatest flexibility, the PROAMP-7X400 includes both Cresnet and high-
speed Ethernet to enable direct control and monitoring via a Crestron control system
(in lieu of a PSPHD). Whether communicating with the control system directly or
via a PSPHD, the PROAMP-7X400 lets you control amplifier power, mute
individual channels, monitor temperature and signal status, and receive fault alerts,
all from a Crestron touchpanel, computer or mobile device. Signals from the
amplifier may also be utilized to enable custom automation, such as reducing audio
levels when clipping is sensed, or regulating climate control in the equipment room
in response to amp temperature.
Professional & Precise
The PROAMP-7X400 is designed to produce pristine, accurate audio. A hybrid, DC
coupled topology preserves the audio signal throughout without coloring or adding
noise.
2 • PROCISE™ Surround Sound Amplifier: PROAMP(I)-7X400 Operations Guide – DOC. 6976A