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Klipsch The Nines vs KEF LSX Comparison

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Klipsch The Nines

Powered Bookshelf | 34-25k Hz

Klipsch The Nines
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KEF LSX

Powered Bookshelf | 59-28k Hz

KEF LSX
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Klipsch The Nines Klipsch The Nines
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KEF LSX KEF LSX
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Klipsch The Nines
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KEF LSX
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Klipsch The Nines vs KEF LSX Speaker Comparison

In this review, we will be comparing The Nines and LSX, two Powered Bookshelf speakers from Klipsch and KEF. Being Powered speakers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them.

Let's have a brief look at the main features of Klipsch The Nines and KEF LSX first before getting into our more detailed comparison.

Klipsch The Nines Key Specs

  • 2-way Design
  • 240-watt RMS( 480-watt Peak) Integrated Amplifier
  • 1" Tractrix Horn Tweeter
  • 8" Fiber-composite Woofer
  • 34-25k Hz Frequency Response
  • 24-bit Max Depth / 192 kHz Max Sample Rate
  • Built-in 5.0 Bluetooth
  • App Control Feature
  • Weight:12.25kg
  • Dimensions (H x W x D): 493.0" x 9.5625" x 15.6875"( 493.0 x 243.0 x 399.0mm )

KEF LSX Key Specs

  • 2-way Design
  • 200-watt RMS Integrated Amplifier
  • 0.75" Hard-Dome Tweeter
  • 4.5" Magnesium/Aluminium alloy Woofer
  • 59-28k Hz Frequency Response
  • 24-bit Max Depth / 96 kHz Max Sample Rate
  • Built-in 4.2 Bluetooth
  • App Control Feature
  • Weight:3.50kg
  • Dimensions (H x W x D): 239.7" x 6.125" x 7.1"( 239.7 x 155.6 x 180mm )

In the following sections, we will get into more detail in order to better understand how the Klipsch The Nines and KEF LSX compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate I earn from qualifying purchases.


Drivers

Both The Nines and LSX are 2-way speakers.

Driver Klipsch The Nines KEF LSX
Driver Setup 2-way 2-way
Tweeter 1-inch 0.75-inch
Midrange - -
Woofer 1 x 8-inch 1 x 4.5-inch

The Nines features a 1" Titanium Tractrix Horn Tweeter and 1 x 8" Fiber-composite Woofer . On the other hand, the LSX features a 0.75" Aluminum Hard-Dome Tweeter and 1 x 4.5" Magnesium/Aluminium alloy Woofer .

Frequency Response

The Nines has a frequency range of 34-25k Hz whereas LSX has a frequency range of 59-28k Hz. With a minimum frequency of 34Hz, the The Nines can go significantly deeper on the low side and provide stronger bass compared to the LSX's min frequency of 59Hz.

Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.

Low Frequency

Bookshelf Speakers

The Nines
LSX
Min
Average
Max
High Frequency

Bookshelf Speakers

Klipsch The Nines
KEF LSX
Min
Average
Max

None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.

Cabinet Type and Port Position

Both The Nines and LSX have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.

If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.

Physical Specs

Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Klipsch The Nines's and KEF LSX's external dimensions. Klipsch The Nines has external dimensions of 493.0 x 243.0 x 399.0mm ( 19.375inch x 9.5625inch x 15.6875inch ) whereas KEF LSX has external dimensions of 239.7 x 155.6 x 180mm ( 9.4375 x 6.125 x 7.1inch) .

Klipsch The Nines is clearly the larger of the two speakers. Its body is 87.4mm wider, 253.3mm taller and 219mm deeper than KEF LSX.

Below you can see the front view size comparison of Klipsch The Nines and KEF LSX in scale.

Klipsch The Nines vs KEF LSX Size Comparison - Front View
Comparison image of Klipsch The Nines and KEF LSX Size and External Dimensions

Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base surface area of the Klipsch The Nines is approximately 969.6cm2 / 150.3inch2 and base area of the KEF LSX is approximately 365.7cm2 / 56.7inch2. The The Nines requires 165% more surface area than the LSX which gives it a small disadvantage on placement in tight spaces.

Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:

Klipsch The Nines vs KEF LSX Size Comparison on a Media Console
Size Comparison image of Klipsch The Nines and KEF LSX on a Media Console
Weight Comparison

The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Klipsch The Nines weighs 12.25kg / 27lbs and the KEF LSX weighs 3.50kg / 7.7lbs. This makes the The Nines 250% heavier than the LSX.

Here is a comparison of how The Nines and LSX's weights compare with the average, max and min weights in Powered Bookshelf class.

Weight
All Bookshelf Speakers
Klipsch The Nines
KEF LSX
Min
Average
Max

What's in the Box of Klipsch The Nines?

Here are the items that are included inside the box of The Nines:
  • Powered speaker (Primary)
  • Passive speaker (Secondary)
  • 2 Grilles (pre-installed)
  • 6.5-feet AC power cord
  • 13-feet Proprietary speaker cable
  • 6.5-feet Proprietary extension cable
  • 58-inch HDMI cable
  • 5-feet USB-B to USB-A cable
  • Remote control
  • 2 AAA batteries
  • Instruction Booklet
  • Need Help? Card
  • What's in the Box of KEF LSX?

    Here are the items that come with the LSX:
  • 2 Powered wireless audio speaker
  • Two 6.5-feet AC power cords
  • 10-feet Ethernet cable
  • Remote control (CR2032 3V battery pre-installed)
  • Maintenance Guide
  • Specifications
  • Warranty Information
  • Important Safety Information

  • Reasons to choose Klipsch The Nines over KEF LSX
    Woofer Size 8 inches vs 4.5 inches Larger woofer
    Low Frequency Response 34 Hz vs 59 Hz Generates deeper bass
    Phono Input Yes vs No Connect your turntable directly
    HDMI Input ARC vs No Connect HDMI sources directly

    Reasons to choose KEF LSX over Klipsch The Nines

    High Frequency Response 28k Hz vs 25k Hz Generates higher frequency
    Height 239mm vs 493mm Easier to fit in smaller spaces
    Base Surface Area 365cm2 vs 969cm2 Takes less floor space
    Price per pair* 1250USD vs 1499USD costs less (*prices may change depending on the seller, location and time)
    Ethernet Connection Yes vs No High quality streaming over Ethernet
    USB Port Charge only vs No USB port adds flexibility
    Klipsch The Nines vs KEF LSX Specs Table
    Detailed comparison of specifications
    General Klipsch The Nines KEF LSX
    Brand Klipsch KEF
    Speaker Type Powered Stereo Speakers Powered Stereo Speakers
    Frequency Response 34-25k Hz 59-28k Hz
    Amplifier
    Watts RMS (Continuous) 240-watt RMS 200-watt RMS
    Watts Peak (Max) 480-watt RMS n/a
    Max Bit Depth 24-bit 24-bit
    Max Sample Rate 192 kHz 96 kHz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 8" 4.5"
    Woofer Composition Fiber-composite Magnesium/Aluminium alloy
    Woofer Surround Material n/a Rubber
    Tweeter Size 1" 0.75"
    Tweeter Type Tractrix Horn Hard-Dome
    Aimable Tweeter No No
    Midrange Driver No No
    Firing Direction rear rear
    Physical Specs
    Height 493.0mm (19.4") 239.7mm (9.4")
    Width 243.0mm (9.6") 155.6mm (6.1")
    Depth 399.0mm (15.7") 180.0mm (7.1")
    Weight 12.25kg (27lbs) 3.50kg (7.7lbs)
    Enclosure Bass Reflex Bass Reflex
    Finish MDF with genuine wood veneer n/a
    Available Colors Black,Walnut Black, Olive Green, Gloss White
    Mounting Bracket No No
    Grille Yes n/a
    Moisture Resistancy No No
    Connections
    Aux Inputs 3.5mm 3.5mm
    USB Port USB-B Charge only
    Phone Input Yes No
    Subwoofer Output mono-RCA Wired
    Digital Input Optical, HDMI Optical
    HDMI Input ARC No
    Headphone Jack No No
    Ethernet Port No Yes
    Other
    Parts Warranty 1 Year 1 Year
    Labor Warranty 1 Year 1 Year

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