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Henry Engineering SIX-MIX
SixMix USB Broadcast Audio Console


The SixMix USB Broadcast Console is a full-featured professional radio station audio mixer.
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Our Price: $1,317.60
List Price: $1,350.00
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Henry Engineering SIX-MIX
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The SixMix USB Broadcast Console is a full-featured professional radio station audio mixer. Its 10 inputs include an integral A/D + D/A digital audio codec with a USB computer interface. The SixMix is designed for live broadcasting as well as recording, editing, and other production tasks. There is a stereo Program mixing bus, a Mix-Minus output, a Cue bus with internal Cue speaker, and comprehensive Headphones and Monitor systems. Other features include a Talkback system, Guest Headphone facilities, and accurate audio level metering. SixMix is ideally suited for use in a broadcast studio, news room, radio automation system, remote broadcast facility, emergency studio, internet broadcast station, or editing suite. With a footprint about the size of a laptop computer, it is a compact yet versatile and powerful audio production tool that is intuitive and easy to use.

SixMix accommodates 10 inputs with 6 mixing channels. Channels 1 & 2 are for microphones. Mic 1 is normally used by the console operator; Mic 2 is for a Guest announcer. Each Mic channel includes an On/Off switch and a Cough button. External microphone processing equipment, e.g., a limiter or equalizer, can be inserted using the Mic Process Insert jacks. The Talkback facility allows the console operator to converse off-air with the Guest announcer.

Channels 3 through 6 are for line-level sources, e.g., CD players and tape decks. Both professional and consumer equipment can be used. Each Line channel accepts two stereo Line sources: the “A” input is for professional equipment; the “B” input is for consumer gear. Each Line channel has an A/B Input Select switch to select the desired source. Line channels can be mixed to the main Program output, or to the Cue bus for auditioning prior to air.

Input 6A is the built-in digital audio codec for recording and playback using a computer. Any O/S and software that supports USB 1.1 (or higher) can be used; no special software or drivers are needed. The audio quality of the codec is identical to the award-winning Henry Engineering USB Matchbox. Its advanced design yields audiophile-grade performance that exceeds the sound quality of any computer’s internal sound card, and often surpasses that of 24-bit sound cards. There is no “digital grunge” or harshness, only smooth and natural sound with rock-solid bass and accurately detailed harmonics. The PC-Direct SPDIF digital output permits feeding digital PC-playback audio (only) to a transmitter or web-streaming interface.


  • MIC inputs: -60 dBu to –40 dBu, 10K, balanced, for low-Z professional microphones
  • MIC Process: Post-preamp loop-thru: -10dBu, unbalanced
  • LINE - A Inputs: +4 dBu, 10K, balanced, stereo (3X, 3A-5A)
  • LINE - B Inputs: -10 dBu, 10K, unbalanced, stereo (4X, 3B-6B)
  • USB Interface: Internal 16-bit codec: 32.0, 44.1, or 48.0 kHz, USB 1.1 or higher (6A)
  • AIR Input: +4 dBu, 10K, balanced, stereo
  • PGM Output: +4 dBu, balanced, stereo, 600 ohm load. Max output: +24dBu
  • MIXMINUS Output: 0 dBu, unbalanced, 600 ohm load, Max output: +18 dBu
  • MONITOR Output: -10 dBu nom, unbalanced. 600 ohm load. Max output: +18 dBu
  • REC Output: -10 dBu, unbalanced, stereo, Max output: +18 dBu
  • BOOTH Output: For use with Henry Engineering MultiPhones Guest Pod
  • PHONES Output: For use with stereo headphones, 24 ohms or higher
  • SPDIF Output: SPDIF output of computer play audio
  • AC Input: P115 OR 230 VAC, 9 watts. All units shipped set for 115 VAC unless indicated otherwise.
  • Power Supply: Internal linear supply with toroidal power transformer
  • Physical: 12”W x 8”D x 3”H; 5 lbs
  • Approvals: CE, City of Los Angeles Electrical Test Lab


  • Frequency response: 20 Hz - 20 kHz, +/- 0.5 dB
  • S/N, idle: 93 dB
  • S/N, 1 Line ch. on: 88 dB
  • S/N, 1 Mic ch. on: 75 dB w/ 50 dB mic preamp gain
  • Mic chan. EIN: -125 dBu
  • THD: .004% at operating level; .002% at max level
  • IMD: .007% at operating level, .009% at max level
  • Input headroom: 30 dB (pre fader)
  • Output headroom: 20 dB (post fader)
  • Crosstalk: 70 dB @ 1 kHz; 65 dB @ 10 kHz
  • MixMinus null: 30 dB

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