E-Series Hi-Fidelity Wireless Bluetooth Speaker System

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Hi-Fidelity Wireless Bluetooth Speaker System


New 4-1/4 inch Uni-Q Driver Array

The secret of the E305 system’s outstanding hi-fi response lies in the latest iteration of KEF's signature Uni-Q driver array, originally developed for the multiple award-winning Q Series. With its famously wide dispersion characteristics and sonic purity, this technology is what gives the system its extraordinarily natural sound quality.


Uni-Q MF / LF Driver

Being stiffer than conventional materials, the aluminium midrange cone operates rigidly over the entire vocal range for the smooth, clear midrange response that reproduces the human voice with stunning accuracy. Together with KEF’s Z-flex cone surround it allows the cone full excursion while providing a smooth, uninterrupted surface over which the tweeter output passes with no disturbance or diffraction effects. Its undercut magnet designed driver motor, which usually is only found in high end speakers, reduces midrange distortion by generating a very symmetrical magnetic field, resulting transparency helps to create the feeling of ‘being there.'

General Features:

  • Bluetooth enabled with Bluetooth 4.0 aptX, allowing you to stream your music in full stereo to a stereo to a standard no single box system could ever match
  • Digital 96Hz/24-bit mini USB input, offering you lossless high resolution sound from source to output
  • Multi-connection flexibility: can be used for steaming music anywhere in the home, TV sound with the optical connection, or as a desktop music system
  • Subwoofer output, allowing you to add a KEF subwoofer for even more bass extension
  • Aluminum midrange cone, cone breakup control and optimized tweeter dome shape to ensure smoother, clearer response, offering exceptional noticeable difference in vocals, with every detail faithfully reproduced
  • Most sophisticated and acoustically accomplished version yet of KEF's iconic "egg" compact speaker system
  • Color: Black
  • Also found as:
  • Dimensions: 5.4"W x 6.3"D x 10.2"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Product Specifications:

  • Frequency Response: 90-33,000 Hz
  • Sensitivity: 86 dB
  • Amplifier type: Twin Class AB
  • Analogue input: 3.5mm stereo jack
  • Uni-Q driver array:
    • HF: 19mm (0.75 in.) vented aluminium dome
    • LF/MF:115mm (4.25in.) magnesium/aluminium alloy

What's in the Box?

  • EGG Wireless Speaker x2
  • Power Adapter
  • Remote Control
  • Power cable
  • USB cable
  • Quick Start Guide

Speaker Design

Speaker Type
The type of speaker determines the use that the speaker is intended for. Some speakers are manufactured specifically for home use while others are made for professional use.
Bookshelf Speakers
All-Weather/ Water-Resistant
All-weather and water-resistant speakers are made to withstand the elements. They usually have been treated with a protective coating to shield against all types of weather. From wet to dry, hot to cold, these speakers are prepared. Speakers that are water-resistant are not to be submerged in water.
Professional/ DJ Equipment
This feature designates if the speaker is designed for professional use. Professional products consist of high end PA (Public Address) systems, DJ Equipment, Karaoke equipment, and other uses that require a high end unit.
Indoor/Outdoor Speaker
This designates whether the speaker is intended for indoor use or outdoor use.
Multi-Purpose Speaker
This designates if the speaker can be used for multiple activities. Can be hooked up to anything that uses a 3.5mm headphone jack, such as a CD/MP3 player or a computer.

Speaker Enclosure

Box Exterior Color
The color of the enclosure's exterior/outer finish.
Paintable Frame
This means that the frame or cabinet of the speaker can be painted to match its surroundings.

General Features

Bluetooth Connectivity
'Yes' means Bluetooth is built-in and the speaker or receiver will be able to connect to a Bluetooth transmitting device such as a smartphone or tablet for wireless audio playback. 'No' means the product does not support Bluetooth wireless audio playback. 'Optional' means the product can support Bluetooth wireless audio playback, but it requires an additional adapter to do so.

Specials with this Item

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Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

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Product Summary


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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: KEF EGG US (BLACK)

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E-Series Hi-Fidelity Wireless Bluetooth Speaker System


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