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.
Specifications
Audio
Input Signal
Types
Balanced/unbalanced analog line/mic-level
and AoIP streams.
Balanced
Analog Input
Maximum signal level: +21 dBu (8.7 Vrms)
Impedance: >10k Ohms
ƒ Response: 20 Hz to 20 kHz±0.5 dB
THD+N: <0.005% @ 1 KHz
S/N Ratio: 105 dB A-weight
Channel Separation: 100 dB @ 1 KHz
Mic Input
Maximum gain: 60 dB
Impedance: >10k Ohms
ƒ Response: 20 Hz to 20 kHz±0.5 dB
THD+N: <0.005% @ 1 KHz @ 60 dB gain
S/N Ratio: 71 dB @ 60 dB gain A-weight
Channel Separation: 69 dB @ 60 dB gain @ 1
KHz
Balanced
Analog
Output
Maximum signal level: +21 dBu (8.7 Vrms)
Impedance: 200 Ohms
ƒ Response: 20 Hz to 20 kHz ±0.5 dB
THD+N: 0.005% @ 1 kHz at max output
S/N Ratio: 113 dB digital in, 105 dB analog in,
20 Hz -20 kHz, A-weight
Channel Separation: 100 dB @ 1 KHz
Speaker
Output
ƒ Response: 20 Hz to 20 kHz ±0.5 dB at 1 W
High-Pass Filter (70V and 100V operation
only): -3 dB @ 80 Hz, -12 dB/octave
THD+N: <0.1% at 1 kHz @ -3 dB full rated
output power
S/N Ratio: >103 dB, 20 Hz to 20 kHz,
balanced
Crosstalk: -75 dB at 1 kHz
Gain: 29 dB @ 8 Ω
Protection: Over current, under voltage, over
temperature, DC offset, extreme high
frequency
Go to Sleep Time: 25 minutes with no signal
present (when set to POWER SAVER)
Wake Time: 0.5 s typical
Output Power Per Channel
Mode
1 Channel
Driven
2
Channels
Driven
3
Channels
Driven
4
Channels
Driven
Lo-Z, 8
Ω (single
ended)
150 W 150 W 75 W
1
75 W
Lo-Z, 4
Ω (single
ended)
200 W 150 W 75 W
1
75 W
Lo-Z, 8
Ω
Bridged
300 W 150W 150W
1
N/A
Hi-Z 70V 300 W 150W N/A N/A
Hi-Z
100V
300 W 150W N/A N/A
NOTES:
l
Total output power from all channels combined
(simultaneously) is up to 300 W.
l
Each mode will output power in watts up to the value
listed in the table.
Connectors
CH1-CH4
(2) 4-pin 5.08 mm pitch, 12A plug with screw
locking retainers;
Power amplifier output;
Terminals accept up to 12 AWG (3.31 mm)
NOTE: Output is direct-coupled, not
transformer isolated.
IN1-IN4 (4)3-pin 3.5 mm detachable terminal block;
Balanced/unbalanced line or mic-level audio
inputs;
Maximum Input Level: 8.7 Vrms, +21 dBu;
Input Impedance: 10k Ω Wake threshold is -65
dBu;
Phantom power is available when used as
mic-level inputs
OUT1-OUT4 (4) 3-pin 3.5 mm detachable terminal block;
Balanced/unbalanced line-level audio
outputs;
Maximum Output Level: 8.7 Vrms, +21 dBu
REMOTE (1) 2-pin 3.5 mm detachable terminal block;
Connect to dry contact closure to place
amplifier in standby mode
G (1) 6-32 screw;
Chassis ground lug
DM-NAX-AMP-X300
DM NAX™ X-Series Flexible Output Amplifier, 300W