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Headphone Amp

Hear Technologies HB-Mix Hub

The Hear Back Mix Hub is a rack-mount distribution hub that takes eight channels of analog audio via DB25 and distributes them to multiple personal mixer stations over Cat5 cabling. Each musician gets their own Hear Back mixer to create a custom blend, while the hub handles the conversion and distribution from a single 1U rack space. It is a cost-effective personal monitoring solution that scales well for bands of up to eight musicians.

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HEAR TECH
Documented outputs
44 destination connections
Documented inputs
2Based on documented inputs
Rack space
1UBuilder checks available rail space
Power draw
15W20W documented maximum
Catalog estimate
~$999Use retailer rows for current price and stock

01 · What it does—and what that changes in your rig.

Product overview

Start with the payoff, then work through how it functions, where it fits, and the details that change a real build.

The payoff

Headphone Amp decisions, organized around the whole rig.

The Hear Back Mix Hub is the rack-side brain of a personal monitoring system built around giving musicians individual control over their own ear mix. It lives in your monitor rack or IEM rig, accepts eight channels of analog audio over a single DB25 connection from your console or patch bay, and then pushes that audio out to up to four personal mixer stations via Cat5 cabling. Each musician plugs into one of those stations and builds their own blend without touching the monitor desk. For a band that's tired of the 'more me' conversation mid-set, this is a real answer.

Documented outputs
44 destination connections
Documented inputs
2Based on documented inputs
Rack space
1UBuilder checks available rail space
HEAR TECH
Hear Technologies product panel1U · 15W
Function

How it works in the path

The DB25 input is the connector to plan around — you'll need your console's direct outs or aux sends wired to a DB25 breakout, which is standard gear if you're already living in the analog sub-snake world but worth accounting for if you're not. At 1U and 200mm deep, it fits comfortably in a shallow rack, and the 15-watt draw is negligible on a standard outlet. The four Cat5 outputs mean you can cover up to four stations from this hub, with each station then supporting individual headphone monitoring for one musician. If your band has more than four players who all want personal mixes, you'll need to think about how you're assigning outputs.

Best fit

Where it earns its place in the rack

This hub earns its place in smaller touring and rehearsal rigs — think a four- to eight-piece band where musicians are done fighting over wedge levels and the monitor engineer is done babysitting mix tweaks between songs. It's a clean, low-overhead solution at a price point that makes the whole Hear Back ecosystem accessible. It is not the right tool if your show demands more than eight discrete mix channels per musician, or if your musicians need stereo in-ear capability with full wireless freedom — for that, you're in dedicated IEM transmitter territory. But for wired personal monitoring in a fixed or fly-date rig, it delivers exactly what it promises.

In the rack

Details worth deciding before load-in.

  • Wire your console's direct outputs or aux sends to a DB25 snake ahead of load-in — showing up with a pigtail and adapters wastes soundcheck time and introduces fragile connections.
  • Label each Cat5 run at both ends before the cable leaves the rack; on a dark stage with four identical RJ45 ports, unlabeled cables become a troubleshooting problem fast.
  • Keep Cat5 runs away from power cable bundles where possible — even though the signal is relatively robust, long parallel runs next to AC can introduce noise into the system.
  • If you're only using three musician stations, leave the fourth Cat5 port capped and reserve that position for a tech or MD who wants to monitor the mix without standing at the desk.

02 · Know the whole path before you buy.

Signal path

Learn the route as a block diagram: source, product function, transport, and destination. Select any block to see what enters, what changes, and what leaves.

Interactive block diagramAuto-looping · hover, focus, or tap to hold a stage
Port-type signalProduct functionSystem boundary
Follow one signal from source to destination

Each block answers the same three questions: what arrives, what changes here, and what leaves.

01 · Source · selected
01 · Source

2 documented inputs

db25 + IEC C14

Arrives as
2 documented inputs
Connector
db25 + IEC C14
Signal
analog audio

03 · What this product asks of the rest of the system.

Compatibility

Treat connector names as the start of the check—not the answer. These are the boundaries that determine a complete working path.

Best fit · Headphone Amp

Use it when 1U and 200 mm of depth fit the case.

Plan the companion path

Complete the path with upstream and downstream gear that matches connector, direction, signal type, protocol, and wiring standard.

Connector boundary

Documented connectors: db25, RJ45, IEC C14. Match connector, direction, and signal type—not shape alone.

04 · Every connector, grouped by job.

I/O ports

Switch the product view and the documented port inventory updates with it—hardware and data stay side by side.

Every connector, grouped by job.

Switch panels to keep the hardware view and the documented port list in sync.

Front panel
HEAR TECH
Rear panel
Hear TechnologiesHear Back Mix Hub
All documented ports for Hear Technologies HB-Mix Hub
PortPanelConnectorDirectionSignalChannels
Input 1-8 (DB25)reardb25 inputanalog audio8
Cat5 Out 1rearRJ45 outputdigital audio—
Cat5 Out 2rearRJ45 outputdigital audio—
Cat5 Out 3rearRJ45 outputdigital audio—
Cat5 Out 4rearRJ45 outputdigital audio—
Power (IEC)rearIEC C14 inputpower—

Showing 6 of 6 documented physical ports.

05 · Compare the decision, not just the price.

Alternatives

The rows are organized around fit, power, I/O, and system role so a cheaper unit cannot hide a more expensive workflow.

Compare
Aviom A360 Personal Mixer — personal mixer on a mic-stand mount
PreSonus HP60 — 1U front panel with six headphone channels, talkback and A/B mix knobs
Fit📐 1U📐 Outside rack📐 1U
Power⚡ 15W⚡ 5W⚡ 20W
Weight⚖️ 4.4 lb⚖️ 1.8 lb⚖️ 5.3 lb
I/O🔌 6🔌 3🔌 11
Estimate💵 ~$999💵 ~$849💵 ~$599
Deep diveCurrent selectionFull comparison →Full comparison →

06 · Resolve the questions that can change the purchase or build plan.

Planning questions

Short, source-backed answers surface rack fit, power, cabling, and connection details before they become surprises.

How will the Hear Technologies HB-Mix Hub affect rack fit and case depth?

It occupies 1U. Its documented depth is 200 mm.

How much power does the Hear Technologies HB-Mix Hub draw?

Typical draw is 15W and documented maximum draw is 20W.

What connections does the Hear Technologies HB-Mix Hub have?

6 documented physical ports, including Input 1-8 (DB25), Cat5 Out 1, Cat5 Out 2, Cat5 Out 3, Cat5 Out 4, Power (IEC).

07 · See this unit inside a real rack plan.

Builder preview

Placement is only the start. Builder checks space · depth · weight, power headroom, dependencies, and compatible signal paths around this exact catalog item.Open in Builder
HB-Mix Hub positioned in a rack planA simplified plan shows the unit taking 1 rack units, with its documented connection path continuing to a planned destination.Hear TechnologiesHear Back Mix HubCONNECTED GEARnext signal destination1U · 200 mm deep

08 · Related gear, in the order you may need it.

Planning guides for headphone amp systems.