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KEF: KUBE8B 8" 300W Subwoofer

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4.7 out of 5 stars Based on 3 Customer Ratings

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"Great partner to my LSX Speakers"
4 stars"
Purchased on Mighty Ape

I have this setup as LFE with my KEF LSX Speakers in my study. Provides tight, controlled bass and integrates well. Time will tell on reliability concerns with some of the KEF entry level devices, but so far so good and a good price for NZ!

1 out of 1 people found this review helpful.
"Compact subwoofer for music"
5 stars"
Purchased on Mighty Ape

Compact subwoofer to pair with desktop speakers, in my case I have paired this with my Ruark Audio MR1's and have set the crossover frequency to 90hz and it seems to integrate nicely. They don't extend down much beyond 40hz, but that is OK as I use them for music only. They are a closed design which is ideal for music.

The other compact subwoofer for sale in NZ are the Klipsch Reference R-8SW, they are 8", and weights much less (6.3kg vs 11.3kg), so probably the driver is inferior.

I am not sure about long term reliability, as the previous generation KEF subs are known to use cheap control boards and power supplies. So time will tell.

1 out of 2 people found this review helpful.

Description

Discover sound’s hidden depths with KEF Kube subwoofers. The Kube unleashes explosive power intelligently thanks to iBX technology that extends bass depth dynamically. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance. The Kube 8b features an 8" bass driver powered by a 300 watt RMS bespoke class D amplifier and 3 custom EQ settings for easy placement.

Explore new dimensions in sound with Kube, KEF’s powerful range of subwoofers that open up sound’s hidden depths. Each elegantly designed, fully sealed unit unleashes explosive power effortlessly, intuitively, intelligently. iBX technology extends the bass depth dynamically, unlocking the full potential of the driver’s power at normal listening levels or even the most extreme. And with KEF’s unique capability to design, build and integrate the driver in-house, it takes optimisation to a whole new level. Delivering immersive music and home theatre sounds that drive you deeper into the heart of the performance.

Immersiveness
Go deep or go home. KEF’s design and engineering team worked in chorus to develop iBX. This Intelligent Bass Extension algorithm creates an extended depth that unlocks the full potential of the custom driver. Giving you unparalleled precision and ultimate synchronicity between amplifier, driver and sealed cabinet.

Easy configuration
Your room, your rules. Kube subwoofers offer unmatched flexibility in configuration. With a range of LFE, line & speaker-level inputs, Phase selection and 3 DSP controlled EQ settings to help match your sub to any room placement, you’re in control right out of the box. Set up the Kube where it’s most convenient to you, match it to any main speaker or with any type of music system and start exploring new depths in your sound.

Integration
We’re on the same page. KEF is quite possibly the only high-end manufacturer who designs, engineers and assembles the driver, cabinet and circuitry in-house. This level of integration is the hallmark of our commitment to pure sound and the Kube stays true to that ideal. What you get is a driver and amplifier so perfectly attuned they sing in absolute harmony.

Key Features

  • 56bit 50 MIPS DSP preamplifier
  • iBX Intelligent Bass Extension
  • KEF smartConnect intelligent inputs automatically detect mono or stereo and adjust the subwoofer volume level accordingly
  • Sealed for greater accuracy and delicate musical detail while allowing the Kube subwoofers to be installed in a cabinet
  • Placement tuning presets for: Free standing, Wall/in-cabinet and Corner
  • 300Watt Class D amplifier with DSP preamplifier/EQ

Specifications

  • Drive Units: 1 × 200mm (8in.)
  • Frequency Range: 34Hz – 140Hz (-6dB)
  • Maximum Output: 105dB
  • Amplifier Type: Built-in Class-D
  • Output Power: 300W RMS
  • Variable Low Pass Filter: 40Hz – 140Hz & LFE
  • Analogue Input: RCA phono sockets; Speaker level inputs
Release date Australia
February 6th, 2019
Manufacturer code:
KUBE8B
Brand
Box Dimensions (mm)
390x420x395
UPC
637203215261
Product ID
29189453

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