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Mission LX-4 MKII vs Mission LX-3 MKII Comparison

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Speaker to replace
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Mission LX-4 MKII

Passive Floor-standing | 45-20k Hz

Mission LX-4 MKII
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Mission LX-3 MKII

Passive Bookshelf | 45-20k Hz

Mission LX-3 MKII
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Mission LX-4 MKII Mission LX-4 MKII
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Mission LX-3 MKII Mission LX-3 MKII
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Mission LX-4 MKII
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Mission LX-3 MKII
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Mission LX-4 MKII vs Mission LX-3 MKII Speaker Comparison

In this review, we will be comparing two different type of speakers by Mission. Mission LX-4 MKII is a Floor-standing speaker whereas the LX-3 MKII is a Bookshelf speaker.

Let's have a brief look at the main features of Mission LX-4 MKII and Mission LX-3 MKII first before getting into our more detailed comparison.

Mission LX-4 MKII Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 2 x 5" Composite fibre Woofer
  • 45-20k Hz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:30-120watts
  • Weight:15.50kg
  • Dimensions (H x W x D): 36-1/4" x 7-7/8" x 10-3/4" ( 920.0 x 200.0 x 273.0mm )

Mission LX-3 MKII Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 6.5" Composite fibre Woofer
  • 45-20k Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:20-120watts
  • Weight:8.42kg
  • Dimensions (H x W x D): 13-9/16" x 8-7/8" x 12-1/8" ( 345.0 x 226.0 x 308.0mm )

LX-4 MKII and LX-3 MKII are members of Mission's LX MKII series of speakers. Below you can find the loudspeakers from this series.

Mission LX MKII Series History
Model Body Frequency SensitivityImpedance Woofer
Mission LX-1 MKII
  
Bookshelf 58-20k Hz 86 dB8Ω 1 x 4"
Mission LX-2 MKII
  
Bookshelf 55-20k Hz 87 dB8Ω 1 x 5"
Mission LX-3 MKII
Bookshelf 45-20k Hz 88 dB8Ω 1 x 6.5"
Mission LX-5 MKII
  
Floor-standing 42-20k Hz 90 dB8Ω 2 x 6.5"
Mission LX-6 MKII
  
Floor-standing 35-20k Hz 91 dB8Ω 2 x 6.5"
Mission LX-C1 MKII
  
Center Channel 75-20k Hz 88 dB8Ω 1 x 4"
Mission LX-C2 MKII
  
Center Channel 65-20k Hz 89 dB8Ω 2 x 5"
Mission LX-3D MKII
  
Bookshelf 105-20k Hz 86 dB8Ω 1 x 4"
Mission LX-4 MKII
Floor-standing 45-20k Hz 89 dB8Ω 2 x 5"

What size room are the Mission LX-4 MKII and Mission LX-3 MKII speakers good for?

The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:

Listening Environment* Mission LX-4 MKII Mission LX-3 MKII
Near-field Poor Good
Small Room Average Good
Mid-size Room Good Average
Large Room Average Poor
Very Large Room Poor No way

(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2. Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)

In the following sections, we will get into more detail in order to better understand how the Mission LX-4 MKII and Mission LX-3 MKII 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 LX-4 MKII and LX-3 MKII are 2-way speakers.

Driver Mission LX-4 MKII Mission LX-3 MKII
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 5-inch 1 x 6.5-inch

LX-4 MKII features a 1" Microfibre Soft-Dome Tweeter and 2 x 5" Composite fibre Woofer with a Crossover frequency at 3.0kHz. On the other hand, the LX-3 MKII features a 1" Microfibre Soft-Dome Tweeter and 1 x 6.5" Composite fibre Woofer with a Crossover frequency at 3.2kHz.

Frequency Response

LX-4 MKII and LX-3 MKII has exactly the same frequency range of 45-20k Hz.

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 Floor-standing class in our database.

Low Frequency

Floor-standing Speakers

LX-4 MKII
LX-3 MKII
Min
Average
Max
High Frequency

Floor-standing Speakers

Mission LX-4 MKII
Mission LX-3 MKII
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.

Impedance and Sensitivity

LX-4 MKII and LX-3 MKII have the same Impedance of 8 ohms but where they differ is the sensitivity levels. LX-4 MKII sensitivity is rated at 89 dB and the LX-3 MKII's is at 88 dB. This 1 dB difference makes the Mission LX-4 MKII a more sensitive speaker compared to Mission LX-3 MKII, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

LX-4 MKII
LX-3 MKII
Min
Average
Max

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.

Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impedance, sensitivity and system efficiencies.

Input Type and Bi-Amping / Bi-Wiring

LX-4 MKII features Binding post type posts and LX-3 MKII has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.

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 Mission LX-4 MKII's and Mission LX-3 MKII's external dimensions. Mission LX-4 MKII has external dimensions of 920.0 x 200.0 x 273.0mm ( 36-1/4 x 7-7/8 x 10-3/4inch) whereas Mission LX-3 MKII has external dimensions of 345.0 x 226.0 x 308.0mm ( 13-9/16 x 8-7/8 x 12-1/8inch) .

Mission LX-4 MKII is 26mm narrower and 35mm less deeper than Mission LX-3 MKII but it is also 575mm taller.

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 Mission LX-4 MKII is approximately 546.0cm2 / 84.6inch2 and base area of the Mission LX-3 MKII is approximately 696.1cm2 / 107.9inch2. The LX-4 MKII requires 22% less surface area than the LX-3 MKII which gives it a small advantage on placement in tight spaces.


Reasons to choose Mission LX-4 MKII over Mission LX-3 MKII
Sensitivity 89 dB vs 88 dB Play louder with same amount of amplification power
Minimum Impedance 4.3 ohms vs 4.1 ohms Very low impedance levels puts more pressure on amplifier
Number of Woofers 2 vs 1 More woofers
Base Surface Area 546cm2 vs 696cm2 Takes less floor space

Reasons to choose Mission LX-3 MKII over Mission LX-4 MKII

Woofer Size 6.5 inches vs 5 inches Larger woofer
Height 345mm vs 920mm Easier to fit in smaller spaces
Mission LX-4 MKII vs Mission LX-3 MKII Specs Table
Detailed comparison of specifications
General Mission LX-4 MKII Mission LX-3 MKII
Brand Mission Mission
Speaker Type Floor-standing speaker Bookshelf speakers
Power Range 30-120 watts 20-120 watts
Sensitivity 89 dB 88 dB
Impedance 8 ohms 8 ohms
Impedance 4.3 ohms 4.1 ohms
Frequency Response 45-20k Hz 45-20k Hz
Drivers
Woofer Quantity 2 1
Woofer Size 5" 6.5"
Woofer Composition Composite fibre Composite fibre
Tweeter Size 1" 1"
Tweeter Type Soft-Dome Soft-Dome
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 3.0kHz 3.2kHz
Physical Specs
Height 920.0mm (36.2") 345.0mm (13.6")
Width 200.0mm (7.9") 226.0mm (8.9")
Depth 273.0mm (10.7") 308.0mm (12.1")
Weight 15.50kg (34.1lbs) 8.42kg (18.5lbs)
Enclosure Bass Reflex Bass Reflex
Mounting Bracket
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs No No
Other
Parts Warranty
Labor Warranty

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