The Hear Back PRO Four Pack includes (4) PRO Mixers, (1) Standard PRO Hub, (4) 50’ CAT6 Premium Cables, and (2) Analog DA-88 style cables.

The Hear Back PRO System: Hub & Mixers

The Hear Back PRO system consists of two main components: the Hub and the Mixer. The modular Hub consists of four card slots, which can be populated with any configuration of input and/or output cards to fit 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. And with the built-in HBus In/Out ports, multiple Hubs can be daisy-chained together, allowing for truly unlimited system expansion.

The standard Hub (included in the "4-pack") comes pre-loaded with one Network Card and two 8-channel Analog Input Cards which can accept input signals from an audio mixer via auxiliary, matrix, monitor, and/or direct outputs.

The Hear Back PRO boasts many key advantages, including:

• Side-mounted card slot on Mixer for future expansion
• 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 Features:

• 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
• 1 RU chassis
• Modular I/O card-slot configurable mainframe
• Gigabit Ethernet network fabric
• 48V Power Over Ethernet supply

Hear Technologies Hear Back Pro Mixer Features

• Local control of up to 18 channels of audio (16 mono channels + AUX IN + Intercom IN)
• Simple user interface — no display screens, menus, learning curve, or firmware layers to navigate. Just turn a knob!
• True panning/ channel link functions
• Store up to 4 recallable presets
• Intercom allows communication to anyone with a Hear Back PRO Mixer
• Aux inputs (selectable mic and line)
• Balanced left/right line outputs
• Less than .25msec Latency from analog input to output
• Standard CAT5e/6 cabling delivers power and signals to Mixers
• Intuitive Hub channel LED display
• Modular hub with four user-configurable card slots
• Sample Rate user-selectable from 44.1 kHz to 192 kHz
• Switch selectable input sources from Input A (Slots 1 & 2), Input B (Slots 3 & 4), or HBus
• Gigabit Ethernet fabric, 48v PoE power