Wohler VMQ-4 - 4-Channel Analog Audio MonitorThe VMQ 4 audio monitor from Wohler Technologies offers voice quality confidence monitoring of up to 4 analog channels simultaneously. The VMQ 4 only requires a compact 1U of rackspace and is available at a very cost effective price. Because each channel has its own dedicated power amplifier and speaker, the audio sources remain completely separate from input to output. When listening within ultra near field distances of 1 to 3 feet, these discrete