Hear Technologies Hear Back OCTO Four Pack

With improved audio quality, system performance, and overall ease of use, it revolutionizes 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

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

MIXER AUX INPUT:

Line Input Configuration / Impedance: Stereo, unbalanced, 10 Kohms typical

Line Input Level: +4 dBu optimal, +22 dBu max

MIXER HEADPHONE POWER (PER CHANNEL):

Load Impedance: THD less than 0.01%* THD less than 0.1%

8 Ohms: 342 mW 412 mW

16 Ohms: 731 mW 783 mW

25 Ohms: 1.07 W 1.25 W

32 Ohms: 1.37 W 1.6 W

50 Ohms: 1.26 W 1.88 W

100 Ohms: 971 mW 1.03 W

200 Ohms: 512 mW 537 mW

600 Ohms: 185 mW 190 mW

IMD: Typically Less than 0.02%

MIXER LINE OUTPUT:

Freq Response: 20 Hz to 20 KHz, +/-0.16 dB

THD+N: 0.004% typical at 1 kHz, +18 dBu

0.008% typical, 20 Hz - 20 kHz, +4 dBu

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

Crosstalk: Less than -85 dB @ 1 kHz

Latency: Less than 1.5 mSec

SYSTEM NOISE PERFORMANCE:

Noise, A-Weighted: -94 dBu @ analog, -97 dBu optical

Dynamic Range: 122 dB typical

SYSTEM I/O:

Hub Line In, Analog: 8 Balanced inputs on DB-25 female (DA-88 pinout)

Hub Max Input Level, Analog: +18 dBu

Hub Light Pipe In: Industry standard fiber optic connector, shuttered

Hub HearBus In, Out: 2x 8-pin RJ45 jack

Mixer Headphone Out: 1x TRS 1/8" and 1x 1/4" unbalanced stereo

Mixer Line Out: 2x TRS 1/4" balanced (left/mono or stereo)

Mixer Max Output Level, Analog: +28 dBu (mixed output)

Mixer Aux Input: TRS 1/8" unbalanced stereo

PHYSICAL, MIXER:

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)

Unit Weight: 15.8 oz. (0.45 kg)

Mounting: Standard mic stand (5/8" 27 threads per inch) or desk mounted

PHYSICAL, HUB:

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)

Unit Weight: 3.9375 lb. (1.79 kg)

Mounting: Standard rack mount, 1 RU

POWER:

Hub Power Requirements: ~100-240VAC 125W 50/60Hz