Specifications

Functional Specifications

  • Powerful, efficient Class-D Amplifier

  • Number of zones: 6 for the Juke-6 (12 channels), and 8 for the Juke-8 (16 channels)

  • For applications requiring more than 8 zones, multiple Jukes work together automatically (e.g. a Juke-6 and a Juke-8 will appear on the network as if they were a single device with 4 sources and 14 zones)

  • Number of devices that can play simultaneously: 4

  • Number of users: unlimited

  • Wireless input types: Airplay (e.g. from iPhones, iPods, iPads and Macs) and Spotify Connect, implemented using robust open-source libraries

  • Easy-to-use Web interface that behaves just like an app but without the need to install anything

  • Stream audio to any combination of zones simultaneously

  • Analog inputs: up to two line-level analog stereo sources using optional USB interfaces (sold separately)

  • Can be connected to surround-sound amplifiers, also using an optional USB interface (sold separately)

Installation Overview

  • Once ceiling, wall or other speakers are installed in your home or building, simply connect the wires to Juke’s terminals and connect Juke to your network

  • Installation typically takes 30 minutes or less and requires no special knowledge or training

  • Administrator login allows naming of your zones (e.g. kitchen, living room, master bedroom, etc.), setting relative zone volumes, etc.

  • If you have a room with a surround-sound system, Juke can work with it: follow our instructions so that both systems can play the same audio

User Interface

  • Play audio directly from any app (e.g. Apple Music, Spotify, SoundCloud, Amazon Music, Pandora, Podcasts, YouTube, Spectrum TV, DirecTV, web pages, etc.)

  • Stream to Juke via Wi-Fi

  • Click the locations you want

  • Control the volume with the volume controls on your device just like you always do

TECHNICAL SPECIFICATIONS

  • Dimensions: 15” wide by 8” deep by 3” tall

  • Weight: approximately 6 lbs.

  • Available with optional rack ears to allow mounting in 19” equipment racks

  • Maximum ambient temperature: 40 degrees C.

  • Internal Power Supply

    • Voltage input range: 90 to 264 VAC, 127 to 370 VDC

    • Safety standards: UL60950-1,TUV EN60950-1, CCC GB4943, EAC TP TC 004 approved

    • Efficiency: up to 95% efficient

    • Surge withstand: 300 Vac for 5 seconds

  • External Power Requirement: 600W maximum

  • Speaker Connections

    • Speaker impedance: 2 Ohms to 8 Ohms

    • Multiple speakers can be connected in parallel as long as the effective impedance is greater than 2 Ohms (e.g. one zone could have 3 left speakers and 3 right speakers if each speaker is 8 Ohms)

    • Speaker wires:

      • Accepts 12 to 22 gauge wires

      • Stripping length: approximately 0.25 to 0.3”

      • Attach by tightening screws

    • 4 pluggable 8-position terminal blocks with 0.2” spacing

    • Flammability rating according to UL 94 V0

    • V(ESD) Electrostatic Discharge:

      • Human-body model (HBM), per AEC Q100–002: ±3000V

      • Charged-device model (CDM), per AEC Q100–011: ±500V

  • Protective Functions

    • Output current limiting, output short-circuit protection, over-temperature, under-voltage and over-voltage

  • Amplifier Power Output:

    • 40W peak per channel (80 W peak per zone). RMS power: 20W per channel (40W per zone)

    • Aggregate output power of zones operated simultaneously: ~400W peak

  • Network connections

    • Ethernet via an RJ-45 connector, or

    • Wi-Fi using WPA2. Note: Juke should be within 10 to 15 feet of an access point, otherwise we recommend using a TP-Link N300 and connecting Juke to its Ethernet port

  • Internal Computer

    • Lots of horsepower for future firmware feature additions

    • Processor: Quad Core, 1.2 GHz

    • 1 GB of RAM

  • Firmware

    • FLASH based

    • Upgrades are provided OTA (over the air)

LIMITATIONS

  • We designed Juke to do one thing really well and really inexpensively: provide great audio throughout a home or building primarily from Apple or Spotify-Connect devices that stream wirelessly

  • Except for Spotify, support for Android and other operating systems currently requires third-party software or applications (e.g. DoubleTwist Pro) that allow these devices to stream using AirPlay

  • Juke has no analog inputs, although it does support inexpensive third-party USB interfaces that provide them

  • It is not a surround-sound amplifier, although it can be configured to work with them to provide simultaneous audio in theater rooms and any combination of other rooms

  • Juke doesn’t control home automation or lighting control systems, but does have a protocol available to developers so it can be controlled by third-party home automation systems

  • Bottom line: our philosophy is “Sound Made Simple.” Ease of use is more important than bells and whistles. We think you’ll love it!

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