Knoll Systems GRS44 Four Zone Multiroom Amplifier
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Knoll Systems GRS44 Four Zone Multiroom Amplifier

Control Sound with Your Smart Device
  • Pairs with RS232 adapters for remote connectivity
  • Four-source input selection
  • Four-rooms zone 60 watts RMS with an 81 step volume control
  • Automatic protection circuitry
  • Zoned source selection, volume, bass, treble and balance adjustment
  • Item# 77517 PRODUCT IS UNAVAILABLE

    • Details
    • Specs
    • Reviews
    • Manuals
    • Expand the scope of your home stereo system with the touch of a button with Knoll Systems' GRS44 Four Zone Multiroom Amplifier. This amplifier pairs with RS232 adapters to conveniently control audio with smartphones, tablets, laptops, and more. While the GRS44 streamlines your stereo system with its remote control capabilities, this amplifier also gives you the freedom to designate audio to specific zones throughout your home or business. This means you can wirelessly turn on music in one room or zone while adjusting bass or tremble in another by simply using your smart device. Enjoy your favorite music poolside or while cooking dinner with a tap of your device's touch screen. Whether you prefer using an Ethernet or a WiFi connection, there is a RS232 adapter to match your ideal set up (Smarthome Item #'s: 81182 and 81185). Attach your adapter to the GRS44's RS232 data port and configure your device to begin externally controlling the amplifier.

      The GRS44 features four deluxe digital volume controlled stereo amplifiers with individual four source selection. It is built with class A/B amplifier design circuitry, four stereo inputs, and four stereo outputs, making it a great central point for any speaker system. Because the GRS44 is a member of the Knoll Eco-System family of products, it consumes almost no energy when the unit is turned on and in standby. With efficient energy conservation comes lower living costs and a smaller carbon footprint.

      Use the iKontrol app to allow smartphones and tablets to control Knoll stereo controller-amplifiers from the palm of your hand. iKontrol is compatible with iPhone, iTouch, iPad and Android devices. This app works alongside other vendor hardware and software such as Bitwise, Global Cache, iRule and On-Controls. To download iKontrol, please visit the manufacturer's website.
    • Specifications
      ManufacturerKnoll Systems
      Manufacturer Product No.GRS44
      UPC042887129221
      Inputs8 gold RCA jacks with adjustable gain
      Input Impedance50k ohms
      OutputsRemovable screw terminal, accepts 12-20 gauge wire
      Output Power30 watts RMS per channel (8 ohms). 60 watts per zone
      Peak Output Power50 watts per channel (8 ohms)
      Ideal Impedance4 - 8 ohms
      Frequency Response10 Hz - 40 kHz +/- 1dB (1w)
      S/N RatioOver 100 dB A weighted (30 watts)
      THD distortionLess than 0.1% 20 Hz to 20 kHz
      IMD distortionLess than 0.01% 60 Hz 7 kHz 4:1 (SMPTE)
      Trigger output12 VDC on 3.5mm jack
      Volume Adjustments81 steps
      FanNo fan
      Source SelectionFour stereo inputs to four stereo outputs
      Dimensions17" x 3.5" x 11.5"
      Power400 watts at 117 VAC or 230VAC
      Weight17 lbs
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