26 • DM NAX® Product Manual — Doc. 9045M
supports up to 256 audio output zones. DM NAX devices can seamlessly pull and distribute the audio
from DM NVX sources.
Digital Signal Processing (DSP)
The DM-NAX-AMP-X300 has two DSP modes. Residential mode enables the quick and easy
configuration of layout, speaker protection output limits, and speaker profiles for each zone. In
Commercial mode, make full use of the DM-NAX-AMP-X300's true mixing matrix as well as advanced
options for equalization and dynamics processing on each individual speaker, line, and network channel.
Encoder and Decoder Functionality
The DM-NAX-AMP-X300 can operate as a network AV encoder and decoder. The local input sources on
one amplifier can be sent as AoIP streams to DM NAX, Dante, or AES67 capable devices.
Simultaneously, the DM-NAX-AMP-X300 can receive AoIP streams from these same devices and decode
them for local output.
Lo-Z (4/8 Ω) and Hi-Z (70V or 100V) Output
The DM-NAX-AMP-X300 is a 4-channel amplifier (up to 75 W per channel) which can also be configured
for 3-channel bridged operation (up to 75 W per single ended channel and up to 150 W for the bridged
channel), 2-channel bridged operation (up to 150 W per channel), or 1 channel bridged operation (up to
300 W). A choice of Lo-Z outputs to drive 4- or 8-Ω speakers, or Hi-Z outputs to drive a distributed
speaker system (70V or 100V) can be used. Balanced/Unbalanced inputs are provided for connection to
two stereo or four mono sources through detachable terminal blocks.
ENERGY STAR® Certified
An energy-efficient design enables the DM-NAX-AMP-X300 to meet demanding ENERGY STAR
requirements. In addition to its high efficiency under operation, the amplifier draws no added inrush
current during power-up, thereby reducing AC circuit requirements and allowing multiple amplifiers to
be connected to a single switched circuit. To reduce energy usage further, the DM-NAX-AMP-X300 can
be configured to enter a low-power standby state if no input signal is detected on either channel for 25
minutes. Signal detection sensitivity has been optimized to improve response time when triggering the
amplifier to the on state, allowing it to return to full operation within a half-second. The REMOTE input
can be connected to a contact closure to place the amplifier outputs in controlled standby mode.
Modular Design
The DM-NAX-AMP-X300 is housed in a half-width rack-mountable form factor that can be installed
individually or ganged together in a single rack space. The amplifier is high-density stackable with other
Crestron modular amps, allowing multiple units to be installed vertically in an equipment rack without
needing extra ventilation space. Rack and surface mount parts are included, so no additional mounting
accessories or rack shelves are required.
Whether mounting in a rack, attaching to a flat surface, or placing on a shelf, it is easy to combine two
amplifiers into a single, full rack-width assembly.
Fully Protected
The DM-NAX-AMP-X300 features protection against overheating, shorted or overloaded speaker lines,
excessive input signals, and other faults. In the case of a shorted speaker line or overheating condition,
paired outputs mute automatically until the fault condition is resolved. In the event of a prolonged fault,
all outputs mute and the amplifier shuts down.
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