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Hear Technologies HEAR-BACK-FOUR-PK-A Hear Back PRO Four Pack, ADAT Input Network-Based 16-Channel Personal Monitor Mixer System Package

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Hear Technologies' Hear Back PRO system from is the simplest as well as the most affordable digital solution for providing the mix to everyone so they can perform at their best. Fully modular and infinitely expandable, this system allows customization to suit your needs. This particular product is the Hear Back PRO Four Pack, ADAT Input configuration, one of several versions of this system (other configurations sold separately).

There's no learning curve; whether you've worked with a personal monitor mixer setup or not, this powerful system's simple layout makes it quick and easy to get the right mix. This framework is based in Gigabit Ethernet, and thus paves the way for an impressive range of future possibilities.

Hear Back PRO system - Two main components make up this system: the Hub and the Mixer. The modular Hub unit offers 4 card slots which can be populated with any configuration of input and/or output cards to suit your exact needs. Each Hub has the ability to supply signal and power to as many as 32 Mixers (8 per Network Card), each over a single standard CAT5e/6 cable. With the onboard HBus In/Out ports, multiple hubs can be daisy-chained together, allowing for truly unlimited system expansion.

The Hear Back PRO Mixer provides local control of up to 18 channels of audio (16 mono channels + AUX IN + Intercom IN), and can receive power and audio over a single Ethernet cable, up to 500ft from Hub to each Mixer.

ADAT card (included, shown above) - Enables communication between the HB PRO Hub and compatible audio equipment via ADAT protocol.

Network Card for PRO Hub Network card (included, shown above) - This card provides (8) RJ45 Gigabit Ethernet ports for connecting Hear Back PRO Mixers, PRO Mixer Distros, or other Hear Back PRO Hubs. Each of these ports provides PoE+ power and digital audio over a single Cat6 Ethernet cable that can be run up to 566ft.

Hear Technologies Hear Back PRO Four Pack, ADAT Input Includes:

  • (4) PRO Mixers
  • (1) Hub Frame
  • (1) ADAT card
  • (1) Network Card
  • (4) 50ft CAT6 cables

Hear Technologies Hear Back PRO, ADAT Input Features:

  • Overall System
    • Large master knob controls overall main mix, AUX, and intercom levels independently
    • Volume and panning control of all 16 channels
    • Direct and immediate visual feedback of all 16 channels
    • Up to 8 pairs of stereo-linked channels
    • Support for sampling rates up to 192 kHz
    • Selectable XLR or 1/8" Mixer AUX input
    • Built-in intercom broadcasts the AUX source (mic, MP3 player, click, etc.)
    • Intercom auto adjusts its own level so even the quietest message never goes unheard
    • Modular I/O Hub card system lets you customize the system to match your configuration, and can adapt to your needs
    • Supports secondary power supply to provide redundancy and power to up to 32 Mixers
    • USB port on Hub makes updating firmware for future features and upgrades a simple drag-and-drop operation
    • Status indicating logos on Hub and Mixers make it easy to detect and diagnose problems, should they arise
    • Write session info and channel settings on storable Mixer overlays for an unlimited number of presets:
    • Instantly store and recall presets from memory with the push of a button
    • Most recent configuration is saved, even after power-down
  • Hub
    • Three switch selectable 16-channel input sources:
      • Input A (Slots 1 & 2)
      • Input B (Slots 3 & 4)
      • HBus
    • 24-bit Delta-Sigma A/D converters
    • Six user-selectable sample rates, indicated by LEDs: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz
    • Less than .25 milliseconds total system delay (latency) from analog input to output
    • 16 RGB LEDs intuitively display signal / peak levels for channel metering
    • Standard CAT5e cabling delivers power and signals to Mixers
    • Daisy-chain via HBus for very large systems
    • 1RU chassis
    • Modular I/O card-slot configurable mainframe
    • Gigabit Ethernet network fabric
    • 48V Power Over Ethernet supply
  • Mixer
    • Local control of up to 18 channels of audio (16 mono channels + AUX IN + Intercom IN)
    • Receive power and audio over one Ethernet cable, up to 500ft from Hub to each Mixer
    • Side-mounted card slot for future expansion
    • 24-bit Delta-Sigma D/A and A/D converters
    • Volume/panning/stereo link control of all 16 channels of audio
    • Store up to 4 recallable presets
    • Intercom allows communication to anyone with a Hear Back PRO Mixer
    • Selectable 1/8" TRS stereo unbalanced and XLR mono balanced (with 15V phantom power) AUX inputs:
      • Microphone input for crowd / ambiance mic or intercom use
      • Drum module / metronome or local mix input
    • 1/8" and 1/4" headphone jacks
    • Balanced mono/stereo, line-level outputs
  • Hear Back PRO ADAT card
    • Simultaneously sends and receives 16 channels of digital audio
    • Backwards-compatible with the original 8-channel Hear Back system
    • (2) optical ADAT TOS-Link inputs, (2) optical ADAT TOS-Link outputs, and (2) RJ45 HearBus outputs (for connecting to the original Hear Back system - sold separately)
    • Supports and automatically locks on to sampling rates of 44.1 kHz and 48 kHz
    • Automatic sampling rate down-conversion is applied on the ADAT and HearBus outputs when the system is running at sampling rates over 48 kHz
    • (2) cards can be populated per Hub to allow A/B input switching between (2) banks of 16 channels*
    • Up to (4) cards can be populated to allow A/B input switching as well as a second set of dedicated ADAT outputs*

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