With improved audio quality, system performance, and overall ease of use, it revolutionises monitor mixing on stage or in the studio. Imagine getting your mix exactly the way you want it. With the Hear Back OCTO, you save time and get the sound just right, the first time. This affordable system is perfect for headphones, wired and wireless in-ear monitors, and/or conventional floor monitors.
System Standouts
- Virtually unlimited system size
- Affordable solution
- Excellent audio fidelity
- Very long digital cables possible without loss of audio quality
- Audio inputs ADAT, analog, and the HearBus are switch selectable from the front panel
- Local control of up to 10 channels of audio (eight inputs plus a stereo AUX input). Master Volume controls the level of headphones, line outs, and AUX input.
- Headphone amplifier fault indicator: In case of overheating or a short, the red LED illuminates to alert the user of a problem
- Bus Status Indicator: Confirms proper connection to the Hub
- Link Indicators: Whenever two pairs of mono inputs are linked for stereo operation, the link LED is illuminated
- Standard CAT5e power and signal connection - a cost effective, simple, unobtrusive way to connect eight channels of audio. The cable is held in place with a built-in cable strain relief.
- Balanced line-outs, mono/stereo
- Stereo AUX In
- Mixer has a built-in mic stand mount for attaching to a standard mic stand or clipping onto a stand extension bar or clip
- High power - low distortion headphone amplifiers
System Features
Hear Back OCTO Mixer Features
The Hear Back Mixer is equipped to mount to any standard mic or desk stand using the built-in 5/8" threaded socket located on the back of the mixer.
- Local control up to 10 channels of audio
- Master volume
- Built-in standard mic stand mount
- 24-bit D/A converters
- Bus status indicator
- Headphone amplifier fault indicator
- Mono/stereo link indicators
- Balanced line outs, mono/stereo
- Stereo AUX in:
- Expand numbers of mixers
- Drum module/metronome input
Hear Back OCTO Hub Features
A single Hub supplies signal and power to a maximum of eight Mixers. To expand your system, the Hubs can be daisy-chained using the HearBus In/Out for virtually unlimited system size. The Hub accepts analog input signals from an audio mixer such as auxiliaries, matrix outs, sub outs, monitor outs, and/or direct outputs. The ADAT input can come from digital audio workstations, digital recorders, or digital mixers.
- Three switch selectable input sources:
- ADAT® Optical
- Analog
- HearBus
- 24-bit A/D converters
- 44.1KHz and 48KHz sample rates
- Multi-color, four-level metering
- Daisy-chain for expanded systems
- Internal universal input power supply
- 1 RU chassis
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Mixer Aux Input |
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Line Input Configuration / Impedance: |
Stereo, unbalanced, 10 Kohms typical |
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Line Input Level: |
+4 dBu optimal, +22 dBu max |
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Mixer Headphone Power (Per Channel) |
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Load Impedance: |
THD less than 0.01%* |
THD less than 0.1% |
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8 Ohms: |
342 mW |
412 mW |
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16 Ohms: |
731 mW |
783 mW |
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25 Ohms: |
1.07 W |
1.25 W |
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32 Ohms: |
1.37 W |
1.6 W |
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50 Ohms: |
1.26 W |
1.88 W |
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100 Ohms: |
971 mW |
1.03 W |
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200 Ohms: |
512 mW |
537 mW |
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600 Ohms: |
185 mW |
190 mW |
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IMD: |
Typically Less than 0.02% |
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Mixer Line Output |
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Freq Response: |
20 Hz to 20 KHz, +/-0.16 dB |
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THD+N: |
0.004% typical at 1 kHz, +18 dBu |
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0.008% typical, 20 Hz - 20 kHz, +4 dBu |
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IMD: |
0.02% typical at +4 dBu, 60 Hz / 7 kHz |
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Crosstalk: |
Less than -85 dB @ 1 kHz |
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Latency: |
Less than 1.5 mSec |
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System Noise Performance |
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Noise, A-Weighted: |
-94 dBu @ analog, -97 dBu optical |
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Dynamic Range: |
122 dB typical |
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System I/O |
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Hub Line In, Analog: |
8 Balanced inputs on DB-25 female (DA-88 pinout) |
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Hub Max Input Level, Analog: |
+18 dBu |
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Hub Light Pipe In: |
Industry standard fiber optic connector, shuttered |
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Hub HearBus In, Out: |
2x 8-pin RJ45 jack |
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Mixer Headphone Out: |
1x TRS 1/8" and 1x 1/4" unbalanced stereo |
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Mixer Line Out: |
2x TRS 1/4" balanced (left/mono or stereo) |
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Mixer Max Output Level, Analog: |
+28 dBu (mixed output) |
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Mixer Aux Input: |
TRS 1/8" unbalanced stereo |
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Physical, Mixer |
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Size: |
5.1" H x 9.3” W x 2.519" D (12.95 cm H x 23.62 cm W x 6.40 cm D) |
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Unit Weight: |
15.8 oz. (0.45 kg) |
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Mounting: |
Standard mic stand (5/8" 27 threads per inch) or desk mounted |
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Physical, Hub |
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Size: |
1.75" H x 19.0" W x 5.0" D (4.45 cm H x 48.26 cm W x 12.7 cm D) |
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Unit Weight: |
3.9375 lb. (1.79 kg) |
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Mounting: |
Standard rack mount, 1 RU |
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Power |
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Hub Power Requirements: |
~100-240VAC 125W 50/60Hz |
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