The Yamaha XMV4280 4 channel power amplifier has features are designed sepcifically to benefit installation sound systems.
Yamaha XMV4280 Features:
Four-channel power amp that can operate in both high-impedance (70V/100V line) or low-impedance (4 Ohm/8 Ohm) modes simultaneously.
70V or 100V mode can be assigned to every pair of channels without affecting the number of available output channels.
Double Power Mode function effectively doubles the output power of selected channels.
Equipped with YDIF* digital audio format for simple and fast system configuration. *YDIF digital transmission format; a unique proprietary Yamaha technology that delivers 16-channel audio and word clocktransmission via standard Cat5 Ether cable.
Easy setting such as the mute on/off or attenuator changes with MTX Editor when used in system with MTX Series.
An innovative patent pending circuit improves the already highly efficient Class D circuit topology, bringing the efficiency level of the amplifier's output stage up to over 90%.
Feature a Power Factor Correction equipped switching power supply, ensuring harmonic control and decreasing the amount of current draw while maintaining the same output power.
Powerful, intelligent protection features for more reliable operation.
Yamaha XMV4280 Specifications:
Output Power (1 kHz, THD+N = 1%):
4 Ohms: 280W x 4
8 Ohms: 280W x 4
4 Ohms/Double Power Mode: 560W x 2
8 Ohms/Double Power Mode: 560W x 2
Output Power (High Impedance):
100V line: 250W x 4 / 40 Ohm
70V line: 250W x 4 / 20 Ohm
RL = 8 Ohms: 31.7 dB
RL = 8 Ohms / Double Power Mode: 34.7 dB
100V: 38.2 dB
70V: 35.2 dB
Input Sensitivity (RL = 8 Ohms): +4 dBu
S/N Ratio (A-weighted): >/= 100 dB
1/8 power (4 Ohm pink noise): 250W
Idle (4 Ohms): 37W
THD+N (1 kHz, half power): </= 0.2%
Frequency Response (RL = 8 Ohms, 100V/70V, Po = 1W, 20Hz-20kHz): 0 dB, +/-1 dB