YAMAHA XMV4140-D เพาเวอร์แอมป์ 4 แชลแนล  4 x 140W @ 8 ohms/4 ohms, 4x 125W @ 100V/70V line, 2x 280W @ Double Power Mode 8 ohms/4 ohms เครื่องขยายเสียง

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.

New “Double Power Mode”

The newly developed Double Power Mode function effectively doubles the output power of selected channels in order to drive speakers with higher output power. This means that speakers with varying output capacities can be powered simultaneously by the same amplifier, adding flexibility to system design and configuration.

*The number of channels that can be used will be reduced to half

Specifications 

Model

XMV8140-D

Output Power

1kHz, THD+N = 1% (20 ms Burst)

4Ω140W x 8

8Ω140W x 8

4Ω/ Double Power Mode280W x 4

8Ω/ Double Power Mode280W x 4

High impedance

100V line125W x 8 / 80 Ω

70V line125W x 8 / 40 Ω

Voltage Gain

RL=8Ω28.7dB

RL=8Ω / Double Power Mode

31.7dB

100V38.2dB

70V35.2dB

Input Sensitivity

RL=8Ω+4dBuS/N Ratio

A-weighted

≥ 100dB

Power Consumption

1/8 power (4 Ω pink noise)

250W

Idle (4 Ω)73W

Standby23W

THD+N1kHz, half power≤ 0.2%

Frequency Response

RL=8Ω, 100V/70V, Po=1W, 20Hz - 20kHz0dB, ±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 Input

uroblock x 2 (6P, balanced)

Digital Input / OutputRJ45 x 2 (Dante PRIMARY / SECONDARY)

Speaker Output

Barrier strip x 8 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")

Weight10.1kg (22.3lbs)