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ELAC Uni-Fi UB51 Bookshelf Speakers (pair)

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Colour: Black
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Sale price$1,295

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Description

UB51

Beyond the bookshelf.

The Uni-Fi Bookshelf Speakers

Space constraints should never compromise great sound, and the Uni-Fi UB5 is the perfect solution when floor 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 Uni-Fi in a smaller package.

Product Specifications

Speaker type: 3-way, bass reflex
Tweeter: 1 x 1-inch soft dome, concentrically mounted
Midrange: 1 x 4-inch aluminum cone
Woofer: 1 x 5.25-inch aluminum cone
Crossover frequency: 270 / 2,700 Hz
Frequency response: 46 to 25,000 Hz
Sensitivity: 85 dB at 2.83 v/1m
Recommended amplifier power: 40 to 140 wpc
Peak power handling: 140 wpc
Nominal impedance: 4 Ω; minimum 3.4 Ω
Binding posts: 5-way custom
Magnetic shielding: No
Cabinet finishes: Black brushed vinyl
Accessories included: Magnetic fabric grille
Height: 12.75 in / 324 mm
Width: 7.87 in / 200 mm
Depth: 10.75in / 273 mm

Uni-Fi Series

All three Uni-Fi loudspeakers, bookshelf, floorstanding and center-channel, employ a concentric driver. Because of its ideal time-domain characteristics, a concentric design, combining a tweeter and midrange diaphragm within a single voice coil, delivers the most coherent and accurate reproduction across the treble and midrange frequency spectrums. Because of their high cost, concentric drivers are traditionally used in only the most expensive speakers.

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.

Robust cabinets

Every Uni-Fi enclosure is engineered for the long run with thick MDF outer walls and a luxurious textured vinyl finish. The Uni-Fi cabinets incorporate specially designed internal bracing to add stiffness and strength to the cabinet’s outer walls. This bracing greatly reduces cabinet vibration, which causes unwanted coloration to the sound. ELAC believes that the only parts of a speaker that should be moving are the speaker drivers themselves.

High quality base and feet

An outrigger base design used for the UF5 provides a larger, more stable footprint and adds stability and optimum coupling of the speaker cabinet to the floor. Molded knobs dial in precise leveling of the four corners, which are supplied with metal spikes and spike stands, used according to whether the loudspeaker is placed on a soft or hard floor surface.

Sophisticated crossover

One secret to the great sound of the Uni-Fi series are the high quality, audio-grade components specified in the manufacture of each custom, three-way crossover, the careful design of which is essential to smooth transition between the drivers. The best crossovers are the ones in which the sonic landscape—from lowest fundamentals to highest highs—becomes seamless. This is the sound of Uni-Fi.

Sophisticated aluminum woofer

Through the use of 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.

Custom-designed binding posts

The custom terminals provide flexibility of speaker wire connections and ensure optimal electron transfer from speaker cables to the speaker itself. Details like this make the difference!

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