Alice Tieline MHB

The Alice Tieline MHB unit is a microphone input extender designed for the popular Tieline ViA audio codec. It provides additional audio ports for the ViA unit, offering two extra microphone inputs and left/right headphone monitoring. Here are the technical specifications:

Technical Specifications:

1. Input Common-Mode Rejection:
   • 60dB typical.
2. Frequency Response:
   • 20Hz to 20kHz ±0.2dB.
3. Phase Shift:
   • 20Hz <1°, 20kHz <5°.
4. Noise:
   • -100dB (RMS 30Hz to 15kHz) at unity gain – Ref +8dBu output.
5. Distortion (THD) at +8dBu Output:
   • 40Hz: 0.006%.
   • 1kHz: 0.006%.
   • 10kHz: 0.02%.
6. Output Impedance:
   • <1 ohm balanced and floating.
7. Minimum Load:
   • 600 ohms.
8. Gain Range:
   • Adjustable up to 20dB gain and 10dB loss.
9. Max. Input Level:
   • +28dBu.
10. Max. Output Level:
    • +26dBu into 5k ohms, +24dBu into 600 ohms.
    • 0dBu = 0.775 volts RMS.
11. Power Supply:
    • 230v AC to 12v DC mains adapter or internal PP9 battery.
12. Case Details:
    • Dimensions: 145 x 145 x 60mm.
13. Shipping Weight:
    • 1.50Kg.

This MHB unit enhances the capabilities of the Tieline ViA codec by providing additional microphone inputs and headphone monitoring. With a compact and portable design, it can be powered either by a mains adapter or an internal PP9 battery, offering flexibility in various operational scenarios. The adjustable gain range and low distortion ensure high-quality audio processing, making it a valuable tool for audio professionals using the Tieline ViA system.