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Hear Technologies HEAR-BACK-HUB
Signal and Power Hub for Hear Back System

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Hear Technologies HEAR-BACK-HUB

A basic Hear Back system consists of a Hub and personal Mixers connected using standard CAT5E cables. A single Hub supplies signal and power to a maximum of eight Mixers. That’s one for you and everybody in the band. If that’s not enough, the Hubs can be daisy-chained using the HearBus In and Out for virtually unlimited system size. The Hear Back Hub can accept analog input signals from audio mixers, auxiliary, matrix, monitor, and/or direct outputs.

The ADAT input can come from digital audio workstations, digital recorders, or digital mixers. For front of house or remotely located digital mixers, we also have the Extreme Extender ADAT In/Out that converts ADAT optical, which has very limited distance, to the HearBus for transmission of up to 500 feet.

Features:

  • Three switch selectable 8-channel input sources:
        * ADAT Optical
        * Analog
        * HearBus
  • 24-bit A/D converters
  • Digital inputs: 44.1KHz and 48 KHz sample rates
  • Less than 1.5 milliseconds system delay
  • 3-LED four-level metering
  • Standard CAT5E - delivers power and signals to mixers
  • Daisy-chain for very large systems
  • Internal universal input power supply
  • 1 RU chassis

Specifications:

  • Aux Input
        * Input Configuration/Impedance: Stereo, Unbalanced, 10 kohms typical
        * Input Level: +4 dBu optimal, +22 dBu max
  • Head Phone Power
        * Load Impedance, THD < 0.01%
          * 8 ohms: 150 mW (THD at 8 ohms=0.015% typical)
          * 16 ohms: 235 mW
          * 25 ohms: 675 mW
          * 32 ohms: 950 mW
          * 50 ohms: 1.6 W
          * 100 ohms: 1.14 W
          * 200 ohms: 500 mW
          * 600 ohms: 215 mW
        * Load Impedance, THD < 0.1%
          * 8 ohms: 230 mW
          * 16 ohms: 500 mW
          * 25 ohms: 775 mW
          * 32 ohms: 1.1 W
          * 50 ohms: 1.8 W
          * 100 ohms: 1.25 W
          * 200 ohms: 650 mW
          * 600 ohms: 220 mW
        * IMD: Typically < 0.03%
  • Line Out
        * Frequency Response: 20 Hz to 20 kHz, +0.04 dB, -0.55 dB
        * THD+N: 0.008% typical at 1 kHz, +15 dBu, 0.02% typical, 20 Hz-20 kHz, +4 dBu
        * IMD: 0.02% typical at +4 dBu, 60 Hz/7 kHz
        * Crosstalk: Better than -85 dB @ 1 kHz
        * Propagation Delay: less than 1.5 mSec. Hub input to mixer output using 500' of cable
  • Noise Performance
        * Noise, A-Weighted: -91 dBu analog, -97 dBu optical
        * Dynamic Range: 112 dB typical
  • System I/O
        * Hub Line In, Analog: 8 Balanced inputs on DB-25 female (Tascam DA-88 pinout)
        * Maximum Input Level, Analog: +15 dBu
        * Hub Light Pipe In: Industry standard fiber optic connector, shuttered
        * Hub HearBus In, Out: 8-pin RJ45 jack (2 each)
        * Mixer Headphone Out: TRS 1/4" unbalanced stereo (2 each)
        * Mixer Line Out: TRS 1/4" balanced (2 each)
        * Maximum Output Level, Analog: +24 dBu (mixed output)
        * Aux Input: TRS 1/8" unbalanced stereo
  • Mounting: Standard Rack Mount: 1 RU
  • Dimensions (H x W x D): 1.75" x 19" x 7.125"
  • Weight: 5.0 lbs
Headphone Mixer for use with Hear Back System
Hear Technologies HEAR-BACK-MIXER
Headphone Mixer for use with Hear Back System

A basic Hear Back system consists of a Hub and personal Mixers connected using standard CAT5E cables. A single Hub supplies signal and power to a maximum of eight Mixers. That’s one for you and everybody in the band. If that’s not ...

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List Price: $279.00
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Cable DB-25M to 8-1/4"M TRS 12
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HIGH PERFORMANCE DA-88 STYLE CABLEThis Hear Back analog cable is a DB-25 male to eight 1/4" TRS phone plugs.Analog cable length -12-ftCertified for all Hear Back interconnections.May be used in other applications, whenever DA-88 style ...

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High Performance Patch CableEthernet Cable RJ45 male/maleApplications include: Hear Back, DSL, LAN, Voice, Video, and Data.CAT5E cable length -Meets or exceeds CAT5E specifications.24 AWG UTP Stranded copper wire.Certified for all Hear ...

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These A-Net-certified Cat-5e cables can be used with any Pro16 or Pro64 gear. They feature standard RJ45 connectors on each end that can accept the Neutrik NE8MC EtherCon connector for heavy duty applications.Note: The Neutrik NE8MC ...

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By creating acoustic chambers at the ear, hearbuds not only dramatically improves the sound of standard in-ear headphones and ear-pieces, their molded, 100% silicon, design also significantly reduces unwanted background noises levels - ...

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By creating acoustic chambers at the ear, hearbuds not only dramatically improves the sound of standard in-ear headphones and ear-pieces, their molded, 100% silicon, design also significantly reduces unwanted background noises levels - ...

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Talk Back Controller
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The Talk Back 600 MV adds talk back capability and control room monitor dimming to recording consoles, digital audio workstations, and portable audio workstations. Optional wired and wireless remotes (single and dual-button versions) are ...

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