Audio Authority 2278


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  • Product Description

    Audio Authority 2278 HLX 8 output Analog Audio card. 

    • 2-channel analog audio switching for 8 outputs
    • ExpressRamp™ zone volume control 
    • ZQ™ 10-band equalization per zone
    • Tone and balance controls

    Audio Zones with Advanced DSP Features
    The 2278 zone card provides more than just analog audio switching. Using advanced digital signal processing, our exclusive ExpressRamp™ volume control, ZQ™ 10-band equalization, plus tone and balance control is available for each audio zone. Download the free ZQ iPad app template for Command Fusion.

    ZQ™ 10-band equalization provides individual controls to correct for room acoustics. ZQ can be adjusted easily using the HLX PC Utility, and fine tuning can be performed on the HLX front panel menu or via any 3rd party touchpanel controller. 

    Volume Control
    ExpressRamp™ volume control enables volume in any zone to be set to a specific level via one command. It prevents abrupt volume changes by ramping up or down to the target volume level quickly and smoothly. Incremental volume commands are provided, and volume can also be set to a specific level without using ExpressRamp. Adjustable via PC utility, HLX front panel menu, or 3rd party touch panel.

    Tone Controls
    Tone controls (bass and treble) modify the audio signals in a zone after the equalization algorithms have been applied. Adjustable via PC utility, HLX front panel menu, or 3rd party touch panel.

    Balance controls allow the installer to further compensate for room acoustics between left and right speakers. Adjustable via PC utility, HLX front panel menu, or 3rd party touch panel.

    Zone Tracking
    The 2278 may be used for independent audio zones, but if an audio zone should track a video zone, the HLX zone tracking feature can be employed. Using serial or Ethernet commands, any zone can be made to track with any other zone, so that when one zone is switched to a new source input, the other zone also switches. See the HLX user manual for details.


    2278 Specifications


    • Min Load Impedance: 10K ohms
    • Frequency Response: 10-50KHz
    • S/N Ratio: 72dB
    • THD+Noise: 0.03%
    • Crosstalk: 75dB
    • Connector Types: RCA analog audio, DB25 (future use)
    • Dimensions (HxWxD, inches): 1.5 x 14.75 x 6
    • Agency Approvals: ETL, FCC


    Q: Can the 2278 be used to track video zones?

    A: Yes, using serial commands you can assign any zone output to track any other zone output.


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