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VRM

VRM Box
USB interface with headphone output featuring Virtual Reference Monitoring technology

Specifications

Headphone Outputs (Outputs 1-2)

  • Output impedance: < 10 Ω
  • Power output into 150Ω: 15mW
  • Power output into 50Ω: 30mW
  • THD+N: -100dB (0.001%) (-1dBFS input, 20Hz/22kHz bandpass filter, 150Ω load)
  • Signal to Noise Ratio: > 105dB

S/PDIF Digital Input

  • Automatic Sample Rate conversion
  • Supported sample rates: continuous from 32kHz to 192kHz
  • THD+N: < -110dB any sample rate

Crosstalk (Channel Isolation)

  • Any output to output: > 100dB

DIGITAL PERFORMANCE

  • D/A Dynamic Range: 120dB (A-weighted)
  • Measured D/A Dynamic Range: 108dB (A-weighted)
  • Clock Source: Internal Clock only Clock jitter < 250 picoseconds
  • Supported Sample Rates: 44.1kHz & 48kHz
  • Input channels to computer: S/PDIF (stereo)
  • Output channels from computer: Headphones (stereo)

Connectors and Controls

  • Stereo S/PDIF input on RCA
  • Stereo Headphone Output on 1⁄4” TRS
  • Headphone Output Level control (analogue)
  • 4-pin USB2.0 compatible socket

Indicators

  • Green LED Indicator:
    • Flashing: Unit not installed correctly on host
    • Off: VRM effects turned off
    • On: VRM effects turned on

Power

  • Bus power from USB bus

Operating System Requirements

Windows

  • XP (service pack 3), Vista, 7 (32 and 64-bit)

Mac

  • OS X 10.5 Leopard (Intel only), OS X 10.6 Snow Leopard
  • For customers running computers with Intel's Core i-series chipsets, please check here.

To use our OS Checker, please click here

Weight and Dimensions

Dimensions

  • Unboxed: 68mm x 25mm x 68mm (W x H x D)
  • Boxed: 155mm x 210mm x 75mm (W x H x D)

Weights

  • NetWeight: 123g
  • Gross Weight: 380g