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YAMAHA XMV4280-D เพาเวอร์แอมป์ เครื่องขยายเสียง operate in both high-impedance (70V/100V line) or low-impedance
Features
High impedance and low impedance … or both
Installed sound applications often demand both high and low impedance connectivity in the same venue, requiring separate, dedicated amplifiers or an external transformer. XMV power amplifiers, however, can operate in both high-impedance (70V/100V line) or low-impedance (4Ω/8Ω) modes simultaneously, eliminating the need for additional equipment, as well as streamlining the installation process. XMV power amplifiers also enable both 70V and 100V operation for every pair of channels by simply selecting the preferred mode using the dip switches on the rear panel. High impedance operation often requires the use of two combined channels in bridge mode, but with XMV amplifiers, 70V or 100V mode can be assigned to every pair of channels without affecting the number of available output channels.
The details of how many VXS/VXC speakers can be driven from an XMV amplifier channel are shown in FAQ.
Dante models for larger venues where long distant cabling is required.
· 4x 280W at 8Ω/4Ω
· 4x 250W at 100V/70V lines
· 2x 560W at Double Power Mode (8Ω/4Ω)
Specifications XMV4280-D
Model
XMV4280-D
Output Power
1kHz, THD+N = 1% (20 ms Burst)
4Ω280W x 4
8Ω280W x 4
4Ω/ Double Power Mode560W x 2
8Ω/ Double Power Mode560W x 2
High impedance100V line
250W x 4 / 40 Ω
70V line
250W x 4 / 20 Ω
Voltage Gain
RL=8Ω
31.7dB
RL=8Ω / Double Power Mode
34.7dB
100V
38.2dB
70V
35.2dB
Input Sensitivity
RL=8Ω+4dBu
S/N Ratio
A-weighted≥ 100dB
Power Consumption
1/8 power (4 Ω pink noise)250W
Idle (4 Ω)37W
Standby18.5W
THD+N1kHz, half power≤ 0.2%
Frequency Response
RL=8Ω, 100V/70V, Po=1W, 20Hz - 20kHz
0dB, ±1.0dB
Crosstalk
1kHz, half power, 8 Ω, Att. max, input 150 Ω shunt≤ -60dB
Maximum Input Level+24dBu
Input Impedance20kΩ (balanced), 10k Ω (unbalanced)
Connectors
Analog InputEuroblock x 2 (6P, balanced)
Digital Input / OutputRJ45 x 2 (Dante PRIMARY / SECONDARY)
Speaker OutputBarrier strip x 4 pairs
Network
Shared with Dante ports
Remote, Fault Output
Euroblock (3P) x 1
AC IN
AC Inlet x 1
Protection circuit
Load Protection
POWER switch on/off: Output mute, DC-fault: Power supply shuts down, Clip limiting
Amplifier Protection
Thermal: Output mute (heatsink temp ≥90°C) (Restored automatically), Overcurrent: Output mute (Restored automatically),
Low load impedance: Output mute (Restored automatically)
Power Supply Protection
Thermal: Amplifier shuts down automatically (heatsink temp ≥100°C) ,
Integrated power: Gain reduction (Restored automatically)
Cooling Fan3-Speed fan x 2, front-to-back airflow
Power Requirements100V, 120V, 230V-240V; 50Hz/60Hz
Dimensions
W480mm (18.9")
H88mm (3.5")
D422mm (16.6")
Weight8.1kg (17.9lbs)