Elac Uni-Fi UB5 Bookshelf Loudspeakers - Pair (Black Brushed Vinyl)

Model: UB51BK UPC: 853720006100 Item: 167166


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104 E Vine St. Hatfield, PA 19440
  • Mon - Fri: 9am - 4pm
  • Sat: By appointment only
  • Sun: Closed
(866) 961-7781
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754 Route 309 (Bethlehem Pike) Montgomeryville, PA 18936
  • Mon: 9:30am - 8pm
  • Tues - Fri: 9:30am - 6pm
  • Sat: 9:30am - 5pm
  • Sun: 12:00pm - 5pm
(215) 368-8343
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38 Greenfield Avenue, Ardmore, PA 19003
  • Mon - Fri: 10am - 6pm
  • Sat: 10am - 5pm
  • Sun: Closed
(610) 649-7002
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A New Chapter in Coherent Concentric Sound

Space constraints should never compromise great sound, and the Uni-Fi UB5 Bookshelf Loudspeaker is the perfect solution when space is at a premium but demand for audiophile sound is not negotiable. Using the same outstanding driver and crossover components of its bigger brother, this compact, 3-way, bass reflex monitor delivers the sonic signature of the Uni-Fi UF5 in a smaller package.

Point Source Characteristics

Because of its point source characteristics, a concentric design (combining a tweeter and midrange diaphragm into a unified source) delivers the most coherent and accurate reproduction across the treble and midrange frequency spectrums. All three Uni-Fi models—bookshelf, floorstanding and center-channel—can be the basis of an outstanding 2-channel system, or used to build an awe-inspiring multi-channel surround-sound system. Add an ELAC subwoofer to rock your world of music and movies like you have never imagined.

Custom-Designed Concentric Driver

The delicacy of a 1-inch soft-dome tweeter and the harmonic accuracy of a rigid aluminum 4-inch midrange cone come together in a symphony of sonic perfection. Positioning the tweeter concentrically within the midrange voice coil achieves a uniform directivity pattern, for flat frequency response and formidable power handling, along with enhanced imaging for both on- and off-axis listening positions.

5.25-inch Aluminum Woofers

With aluminum, resonances that affect the linearity of common paper cones can be placed beyond the driver's operating frequency range. An extended size magnet with vented pole piece increases power handling for accurate reproduction of bass frequencies that are clean, clear, and powerful.

Robust Cabinets

Every Uni-Fi enclosure is engineered for the long run with thick MDF outer walls and a luxurious textured and vinyl finish. Specially designed internal bracing adds stiffness and strength to the cabinet's outer walls, reducing cabinet vibration that causes unwanted coloration.

Magnetically Attached Grilles

When the protective grille is removed, hidden magnets beneath the surface of the cabinet keeps the front panel free of attachment holes for a clean appearance.

Sophisticated Crossover

High-quality, audio-grade components specified in the manufacture of each custom, three-way crossover ensure smooth transition between the drivers.



  • Speaker type: 3-way, bass reflex
  • Tweeter: 1 x 1-inch soft dome, concentrically mounted
  • Mid-range: 1 x 4-inch aluminum
  • Woofer: 1 x 5.25-inch aluminum
  • Crossover frequency: 270/2700Hz
  • Frequency response: 46 to 25,000Hz
  • Sensitivity: 85dB @ 2.83v/1m
  • Recommended amplifier power: 40 to 140wpc
  • Peak power handling: 140wpc
  • Nominal impedance: 4Ω; minimum 3.4Ω
  • Binding posts: 5-way custom metal
  • Cabinet finish: black brushed vinyl
  • Dimensions (W x H x D): 7.87" x 12.75" x 10.75"
  • Net weight: 16.5 lbs.

What's in the Box

What's in the Box:

  • Uni-Fi UB5 Bookshelf Loudspeakers (Pair)
  • Magnetic fabric grille


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Husband's choice, good reviews
Rebecca M on Nov 9, 2017
Husband's choice, good reviews
Rebecca M on Nov 9, 2017