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Hear Technologies Hear Back PRO 4-Pack Personal Mixing System Includes 4 PRO Mixers, Pro Hub Mainframe, 2 Analog Cards

SKU: HEPROHB4 MFR: PROHB4
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Key Features

  • Hear Back PRO system delivers pristine sound quality for professional monitoring.
  • Customize your personal mix with 4 PRO mixers, perfect for band rehearsals.
  • Low latency monitoring ensures real-time performance without distracting delays.
  • Each mixer features mic & line inputs, offering versatile connectivity options.
  • Enjoy superior noise isolation, eliminating distractions for focused practice.
  • Durable construction ensures your Hear Back system withstands rigorous use.
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Special Order?Estimated to Ship: 09/07/2025
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Hear Technologies Hear Back PRO Specifications

Mixer Aux Input

Mixer Aux Input

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  • Line Input Configuration/Impedance

    1/8" Stereo, unbalanced, 10K ohms typical

  • Line Input Level

    0 dBu optimal, +18 dBu max

  • Mic Input Configuration/Impedance

    XLR Mono, balanced, 150 ohms typical, 150 Hz high pass

  • Mic Input Level

    42 dBu optimal, -30 dBu max

Mixer Headphone Power

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  • Load Impedance

    THD less than 0.01%

  • Output Power

    @ 8 Ohms: 1.2 W (THD <0.015%), 1.5 W (THD <0.1%)
    @ 16 Ohms: 1.6 W (THD <0.01%), 1.8 W (THD <0.1%)
    @ 25 Ohms: 2 W (THD <0.01%), 2.2 W (THD <0.1%)
    @ 32 Ohms: 1.8 W (THD <0.01%), 2 W (THD <0.1%)
    @ 50 Ohms: 1.5 W (THD <0.01%), 1.6 W (THD <0.1%)
    @ 100 Ohms: 1.1 W (THD <0.01%), 1.2 W (THD <0.1%)
    @ 200 Ohms: 500 mW (THD <0.01%), 650 mW (THD <0.1%)
    @ 600 Ohms: 220 mW (THD <0.01%), 250 mW (THD <0.1%)

Mixer Line Output

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  • Freq Response

    20 Hz to 20 KHz, +/-0.15 dB

  • THD+N

    0.004% typical at 1 kHz, +15 dBu
    0.008% typical, 20 Hz - 20 kHz, +4 dBu

  • IMD

    0.02% typical at +4 dBu, 60 Hz / 7 kHz

  • Crosstalk

    Less than -93 dB @ 1 kHz

  • Propagation Delay

    Less than 0.25 mSec @ 192 kHz sample rate

System Noise Performance

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  • Noise, A-Weighted

    -93 dBu @ 192 kHz sample rate

  • Dynamic Range

    117 dB typical

System I/O

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  • Hub Line In, 2x Analog Input Cards

    16 Balanced inputs on 2x DB-25 female (DA-88 pinout)

  • Hub Maximum Input Level, Analog

    +18 dBu

  • Hub HBus In, Out

    8-pin RJ45 jack (standard Ethernet pinout)

  • Hub USB Port

    USB 2.0 (for firmware updates)

  • Hub Card Slots

    4x Each slot can accept an analog or digital input card, output card, or 8 port Mixer network card

  • Mixer to Hub Connection

    8-pin RJ45 jack (8x Mixer connections per network card)

  • Mixer Headphone Out

    TRS 1/4" and 1/8" unbalanced stereo

  • Mixer Line Out

    TRS 1/4" balanced (2 connections: left/mono and right)

  • Mixer Max Output Level, Analog

    +24 dBu (mixed output)

  • Mixer Aux Input

    TRS 1/8" unbalanced stereo and XLR balanced mono (with 15 volts phantom power)

  • Mixer Card Slot

    For future digital or analog input/output expansion capabilities or side-car add-on

  • Hub Power Requirements

    48VDC, 150 Watts (each external power supply powers up to 16 Mixers)

  • Mixer Power Requirements

    Power over Ethernet (PoE) 36-52 volts DC, 15 Watts max provided by Hub through Cat5e/6 network cabling

  • External Power Supply Requirements

    Input Voltage: 90VAC to 264VAC 50/60 Hz

Physical

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  • Mounting

    Mixer: Standard mic stand (5/8" 27 threads per inch) or desk mounted
    Hub: Standard rack mount, 1 RU

  • Dimensions (H x W x D)

    Mixer: 9.5 x 5.95 x 2.71" (241 x 152 x 68.8mm)
    Hub: 1.75 x 19 x 8.5" (44.5 x 483 x 216mm)

  • Weight

    Mixer: 1.6 lb (0.72kg)
    Hub: 6.3 lb (2.8kg)

  • UPC Code

    812737001027

About Hear Technologies Hear Back PRO

Take your audio production to the next level with the Hear Back PRO 4-Pack Personal Mixing System, a professional-grade solution designed for seamless integration into any live performance or studio setting. This advanced system is the epitome of high-quality audio management, offering a robust and durable platform that is both innovative and user-friendly.

The Hear Back PRO system is a testament to the ingenuity of Hear Technologies, a brand synonymous with excellence in the audio equipment industry. This comprehensive package includes 4 PRO Mixers, a Pro Hub Mainframe, and 2 Analog Cards, ensuring that you have all the necessary components for a fully customizable audio mixing experience.

The system's modularity and expandability are unmatched, with the ability to support up to 32 Mixers from a single Hub via standard Cat5E/6 cables. The innovative design allows for effortless expansion, with HBus In/Out ports enabling daisy-chaining of multiple Hubs for virtually unlimited growth potential.

Equipped with the latest V5 Firmware, the Hear Back PRO system offers unparalleled control over your audio. Each PRO Mixer can be assigned to any mono channel, stereo pair, or a submix of up to 16 channels, allowing for precise audio tailoring. The new V5 features include route-assign-submix capabilities for up to 128 channels, the ability to submix up to 16 stereo channels on each of the 16 knobs per Mixer, and extensive stereo-linking options.

Key features of the system include intuitive panning width and stereo placement, solo in place, multiple intercom options, and the ability to copy and paste presets from one Mixer to another. The presence of signal indication on all channels, along with a grouping function, ensures synchronized settings across multiple Mixers. For added convenience, an iOS App is available for remote control of all settings, enhancing ease of use.

The PRO Mixers themselves boast local control of up to 138 channels of audio with the V5 firmware, including a submix option for comprehensive audio management. The inclusion of high-quality 24-bit Delta-Sigma D/A and A/D converters ensures pristine sound quality, while the ability to store up to four recallable presets adds to the system's versatility.

The Pro Hub Mainframe is the heart of the system, supporting up to 32 input channels per Hub and allowing for daisy-chaining to accommodate up to 128 input channels. The modular I/O card-slot configurable mainframe, combined with Gigabit Ethernet network fabric, provides a solid foundation for any audio setup.

The Analog Cards enable seamless communication with professional analog audio equipment, featuring a -10dB pad on each channel for optimal input sensitivity. User-configurable sampling rates ensure compatibility with a wide range of audio sources.

For networking, the included Network Card provides eight RJ45 Gigabit Ethernet ports, each delivering PoE+ power and digital audio over a single Cat6 Ethernet cable for distances up to 566 feet.

In summary, the Hear Back PRO 4-Pack Personal Mixing System is an essential tool for musicians, DJs, and audio professionals seeking a reliable, high-quality, and scalable audio mixing solution. With its professional-grade components, advanced features, and innovative design, this system sets a new standard for personal audio mixing.

Hear Technologies Hear Back PRO Features

  • Modular I/O Hub card system allows for system customization
  • Large master knob controls overall main mix, AUX, and intercom levels independently
  • Volume and panning control of all channels
  • Direct and immediate visual feedback of all 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
  • 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
  • HBUS In/Out connections allow daisy-chaining Hubs and a wireless access point connection for use with the PRO's iOS App
  • Side-mounted card slot on Mixer for future expansion
  • Status indicating logos on Hub and Mixers make it easy to detect and diagnose problems, should they arise
  • Hear Back PRO iOS App allows for complete control of all Mixers connected to the network
  • 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

Product Documents

User Manual

Key Features

  • Hear Back PRO system delivers pristine sound quality for professional monitoring.
  • Customize your personal mix with 4 PRO mixers, perfect for band rehearsals.
  • Low latency monitoring ensures real-time performance without distracting delays.
  • Each mixer features mic & line inputs, offering versatile connectivity options.
  • Enjoy superior noise isolation, eliminating distractions for focused practice.
  • Durable construction ensures your Hear Back system withstands rigorous use.

What's in the box:

  • 4x PRO Hear Back Mixers
  • PRO Hear Back Hub Mainframe
  • 2x Analog Cards
  • Network Card
  • 4x 50' Cat6 Cables
  • 2x Analog DA-88 Style Cables
  • Hear Technologies 1 Year Limited Warranty