HR-101-S

Compact XLR Microphone Amplifier With Stereo Line Level Mixer, Phantom Power

  • MIC preamp input
  • Stereo line level audio input
  • Local analog stereo line level and digital SPDIF audio outputs
  • Adjustable gain for MIC preamp input
  • VU meter to indicate MIC preamp gain
  • Phantom power to accommodate a wide range of MIC inputs
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Description

The HR-101-S is a compact and professional grade microphone amplifier with stereo line-level mix that can be used as a stand-alone device, or paired with the HR-101-R to extend audio over long distances on fiber optic cables. The HR-101-S provides a balanced mic input on an XLR connector as well as a stereo line level input on 3.5mm mini-stereo jack.

The unit has an adjustable-gain low noise mic preamp with a gain range of +34 to +54 db (or x50 to x500) and provides indication of volume level on digital VU meter on its front panel (to prevent saturation and clipping due to too much gain). The unit accommodates a wide range of microphone types. Phantom power can be inserted by means of a front panel switch. The stereo line input is on a standard 3.5mm (1/8 inch) connector which gets mixed with the amplified microphone signal.

In a typical application a presenter can hookup the audio from their PC to the line input and plug the mic to the XLR. The unit will mix the speakers voice with the PC audio. The HR-101-S has both stereo analog (on 3.5mm) and SPDIF digital (on RCA) outputs as well as a fiber-optic ST connector for driving long cables to 3,280 ft. to compatible receiver.

Features

  • MIC preamp input
  • Stereo line level audio input
  • Local analog stereo line level and digital SPDIF audio outputs
  • Adjustable gain for MIC preamp input
  • VU meter to indicate MIC preamp gain
  • Phantom power to accommodate a wide range of MIC inputs
  • Safety interlock does not turn on high-power fiber LED drivers unless fiber-optic cable is plugged in at both ends
  • Green design, turns off parts of circuit when they are not in use
  • Compact, Rugged, Reliable, and Economical
  • Made in USA

Block Diagram

Specifications

Audio Inputs 1x 3.5mm analog line level stereo,
1x XLR microphone
Audio Outputs 1x 3.5mm stereo analog , 1x RCA SPDIF Digital
MIC in Impedance 6.8 KΩ
Mic Phantom Power 15vDC (note that most mics rated for 48v accept
range of 12~48 vDC, with some 9~52 vDC)
Mic Amplifier Noise 1.3nV/√Hz RFI at 1KHz
Mic CMR 100 dB min
Audio Bandwidth 3 Hz to 30 KHz
Optical Wavelength 840 nm GaAIAs LED
Optical Cable Simplex (only 1 fiber) Multi-Mode. OM2 or OM3
Temperature Operating: 32 to 122°F (0 to 50°C);
Storage: –40 to +185°F (–40 to +85°C)
Enclosure Aluminum and Steel
MTBF 90,000 hours (calculated estimate)
Power 5V DC, 2.6A (actual consumption less than 0.25A)
Size 1.64’’H x 4.18’’W x 5.08’’D
(4.2x10.6x12.9 cm)
Weight 0.65 pounds (0.295 kg)

Downloads

Manuals Versions Last Updated
HR-101-S Manual
JUNE 24, 2020
Additional Downloads Versions Last Updated
HR-101-S Dimensional DXF
JUNE 24, 2020
HR-101-S Dimensional PDF
JUNE 24, 2020
Spec Sheets Versions Last Updated
HR-101-S Spec Sheet
JUNE 24, 2020

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