Hear Technologies Mix Back

Input Channel Features
• 16 quality Mic/Line inputs with passive XLR split
• Pin 1 lift and Mic phantom power switches
• Channel inserts
• Signal/Clip LED indicator
• 100 Hz high-pass filter
• Gain control
• 4 band EQ with separate controls for sweep and cut/boost on mid bands
• Two stereo level and pan controls (ST1 and ST2)
• Twelve mono level controls (1-12)
• Switch selectable effects 1-2 sends

Master Features
• 2 stereo and 12 mono TRS outputs
• Switch selectable meter/headphone monitoring
• 2 stereo TRS balanced effect returns
• Switch assignable FX1/FX2 returns to the 12 mono masters
• Stereo Aux return with level controls to both stereo busses – great for FOH mix or the studio “two mix”
• Buss inputs permit stacking of multiple mixers
• Talk back mic preamp assignable to stereo masters 1 and 2, mono outputs 1-12, and the balanced Intercom/slate output
• Relay contact when the talk back intercom switch is pressed
• 16 button talkback remote connects using standard CAT5e cable
• 16 channels of ADAT and HearBus output

Other Features
• Universal internationally approved internal power supply
• 11 RU chassis
• All analog inputs and outputs are balanced

Mix Back Talkback Remote
With the Remote Control, the talkback mic preamp is assignable to stereo masters 1 and 2, mono outputs 1 - 12, and the balanced intercom/slate output.
Connects up to 500 feet with a standard CAT5e cable. FOR USE WITH MIX BACK (MB) ONLY.

Specifications
Passive Microphone Split (Each Channel)
• Mic In to Mic Out: Passive
• Mic Power: +18 VDC
• Pin 1 Lift: Output XLR

Mic Input to Insert Output
• Conditions: +14 dBu input, Gain full CCW, 150 Ω, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 0.05 dBu
                 10 Hz to 120 KHz, +/- 0.3 dBu
• THD+N: 0.002%, 22 Hz to 22 KHz, unweighted
• IMD: 0.004%
• EIN: -121 dBu, 150 Ω Source, -40 dBu input

Mic Pre to Master Output
• Conditions: 0 dBu input, Gain full CCW, 150 Ω, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 0.5 dBu
• THD+N: 0.004%, 22 Hz to 22 KHz, unweighted
• IMD: 0.004%
• Maximum Gain: 60 dBu, EQ Flat

Mic Pre to Master Output
• Conditions: +18 dBu input, Gain full CCW, 150 Ω, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 0.3 dBu
• THD+N: 0.005%, 22 Hz to 22 KHz, unweighted
• IMD: 0.005%
• Maximum Gain: 10K Ω, balanced
• Attenuation: 18 dB

Channel Equalization
• Hi Frequency: 10 KHz shelving, +/- 15 dB
• Hi Mid Frequency: 500 Hz to 15 KHz, +/- 15 dB
• Lo Mid Frequency: 50 Hz to 3 KHz, +/- 15 dB
• Lo Frequency: 100 Hz shelving, +/- 15 dB
• Hi-Pass Filter: 100 Hz, 3 pole, 18 dB/Octave

Buss Inputs to Master Outputs
• Conditions: +4 dBu input, 150 Ohms, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 0.2 dBu
• THD+N: 0.005%
• IMD: 0.005%
• Input Impedance: 10K Ω, balanced

Digital Output
• ADAT Output: 24 Bit, 44.1 KHz / 48 KHz Selectable
• HearBus Output: 24 Bit, 44.1 KHz / 48 KHz Selectable
• ADAT/HearBus 1: Master 1 L/R, Channels 1-6
• ADAT/HearBus 2: Master 2 L/R, Channels 7-12

Analog Line Outputs
• Maximum Output Level: +24 dBu, TRS Balanced
• Output Impedance: 121 Ω, balanced

Talkback Mic Pre Amplifier
• Conditions: -40 dBu input, 150 Ω, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 1.5 dBu
• Gain: Off to 50 dBu, variable
• Line Output: 121 Ω, TRS Balanced
• Input Impedance: 1K Ω, balanced
• THD: 0.05%
• IMD: 0.09%
• Remote Control: 1-12, ST1, ST2, COM, ALL
• Remote Cable: CAT5e, 500 ft. max, wired pin-to-pin
• Effects (FX) Return
• Conditions: +4 dBu input, 150 Ω, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 0.5 dBu
• Gain, FX return to Master: 1 dB, Master at center
• THD+N: 0.0025%, 20 Hz to 20 KHz
• IMD: 0.0027%, 20 Hz to 20 KHz
• Input Imedance: 10K Ω, balanced
• Maximum Input Level: +10 dBu, control centered

Stereo Aux Input
• Conditions: +4 dBu input, 150 Ω, Balanced    
• Frequency Response: 20 Hz to 20 KHz, +/- 0.5 dBu
• Gain: Off to +6 dBu, Aux to Stereo Masters
• THD+N: 0.0033%, 20 Hz to 20 KHz
• IMD: 0.004%, 20 Hz to 20 KHz
• Input Imedance: 10K Ω, balanced
• Maximum Input Level: +8 dBu

Power Supply (Universal)
• Input Voltage: 100 to 240 VAC~, 50-60 Hz
• Input Current: 2 Amps
• Maximum Continuous Input Power: 240 Watts
• Fuse (Internal): 3.15 Amp
• Inrush: 60 Amps, 2 mSec
• Short Circuit Protection: Yes
• AC Input Connector: IEC 320-C14, Internationa
• Agency Listing:    FCC class B, CISPR 22 class B, IEC 60950-1 safety, EN 61000-4-2, 4-4, 4-5

Physical
• Construction: Steel Chassis / Steel Front Panel
• Size (with 1” handles): 19.23" H x 19" W x 5.35" D (488mm H x 482.6mm W x 135mm D)
• Unit Weight: 30.8 lbs (14 kg)
• Mounting: Standard rack mount, 11RU
• Shipping size: 10.55" H x 25.0" W x 24.53" D (268mm H x 635mm W x 623mm D)
• Shipping Weight: 42.9 lb. (19.5 kg)

Note: 0 dBu = 0.775 Vrms. Specifications and features subject to change without notice.
*Specifications and features subject to change without notice