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  1. Home
  2. Mission Speakers
  3. Passive Bookshelf Speakers
  4. Mission LX-3D MKII
Mission LX-3D MKII Review
Mission LX-3D MKII - Front View

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Main Features

  • 1" Soft-Dome Tweeter
  • 4" Composite fibre Woofer
  • 105-20k Hz Frequency Response
  • 86 dB Sensitivity
  • Impedance: 8ohms
  • Power Range: 20-80 watts
  • Weight: 6.28 lbs / 2.85 kg
  • Dimensions(HxWxD): 6-1/4"x6-5/16"x10-1/4" / 158.0 x 160.0 x 260.0mm
MSRP: $349 (list price)
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Mission LX-3D MKII Review
Mission LX-3D MKII Mission LX-3D MKII
Check price atAmazon›

Made by Mission · United Kingdom · since 1977 · sold through dealers

Mission LX-3D MKII is a 2-way Passive Acoustic Suspension Bookshelf speaker by Mission. It was released in 2020. It features a 1" Soft-Dome Tweeter and 1 x 4" Composite fibre Woofer.

A 2-way sealed standmount with a 4 inch composite fibre bass driver and a 1 inch soft-dome treble unit. 86 dB sensitive, 8 ohms nominal (4.5 ohms minimum), 105 Hz to 20 kHz. LX MKII is the entry range: composite-fibre cones and a 25 mm microfibre dome, in a cabinet Mission tuned to be forgiving about placement.

The speaker has a frequency range of 105-20k Hz and a sensitivity of 86 dB. Mission LX-3D MKII has an MSRP of 349$ per pair.

Room Size Suitability

The size of the room where you plan to use the Mission LX-3D MKII is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:

Listening Environment* Suitability
Near-fieldGood
Small RoomGood
Mid-size RoomAverage
Large RoomPoor
Very Large RoomNo 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.)

Mission's LX MKII Series of Loudspeakers

LX-3D MKII is a member of Mission's LX MKII series of Passive speakers. Below you can see the main specs of these speakers.

See all 9 Mission LX MKII models compared »

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

Frequency Response of the Mission LX-3D MKII Speaker

Mission LX-3D MKII has a Frequency response range of 105-20k Hz and Power Range of 20-80 watts. With a minimum frequency of 105 Hz, it is hard to expect a strong bass response from LX-3D MKII so depending on your use case, using a subwoofer will significantly help to widen the response range.

Here we have a comparison of how LX-3D MKII's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Mission LX-3D MKII
Min
Average
Median
Thinking about a subwoofer for the Mission LX-3D MKII?
  • Work out the crossover setting - it follows from this speaker's 105 Hz low end
  • Powered subwoofers under $500 - a similar price range to these speakers
  • Every powered subwoofer we cover, whatever the budget

Crossover frequency of the Mission LX-3D MKII?

The crossover frequency of the LX-3D MKII is set to 2.8kHz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.

Mission LX-3D MKII driver frequency bands105-2.8kWoofer 4"2.8k-20kTweeter 1"20501002005001k2k5k10k20k40kHz, log scale

Impedance and Sensitivity

Mission LX-3D MKII's nominal impedance level is 8 ohms but can go down to as low as 4.5 ohms, and has a sensitivity of 86 dB.

Sensitivity
Bookshelf Speakers
Mission LX-3D MKII
Min
Average
Median

8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Mission LX-3D MKII is not considered a difficult to drive speaker from nominal Impedance perspective.

Sensitivity

With a sensitivity level of only 86 dB, Mission LX-3D MKII is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps. Work out how loud the Mission LX-3D MKII plays in your room →

Minimum Impedance of the Mission LX-3D MKII

Even though the nominal impedance of the LX-3D MKII is 8 ohms, the minimum impedance level of this speaker according to Mission is 4.5 ohms Mission LX-3D MKII so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.

What amplifier does the Mission LX-3D MKII need?

At normal listening levels in a medium room, about 19–80 W per channel into 8 ohms. Set your own conditions and we will rank every amplifier we cover.

We check power, impedance safety and current delivery - not just watts.

Prefer to browse? Integrated amplifiers under $500, or every amplifier we cover.

Input Type

LX-3D MKII has Binding post type connectors and lets bi-amping/bi-wiring. Bi-wiring can enhance the overall transparency of your loudspeakers by using separate speaker wires for the low and high-frequency drivers from a single amplifier. Bi-amping, on the other hand, involves using separate amplifiers for the high and low-frequency drivers, potentially resulting in a greater dynamic range and reduced distortion.

Work out what gauge speaker cable this run needs →

Mission LX-3D MKII External Dimensions and Weight

Mission LX-3D MKII has external dimensions of (Height x Width x Depth) 6-1/4 x 6-5/16 x 10-1/4inch (158.0 x 160.0 x 260.0mm ).

Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base area of Mission LX-3D MKII is approximately 416.0cm2 / 64.5inch2.

Find speakers that fit your shelf or alcove →  ·  Work out where they should sit in the room →

Weight

The Mission LX-3D MKII weighs 2.85kg / 6.3lbs per piece. Here is a comparison of how LX-3D MKII's weight compares with the average, max and min weights in its class.

Weight
All Bookshelf Speakers
Mission LX-3D MKII
Min
Average
Median
Weight
Bookshelf Speakers under $500
Mission LX-3D MKII
Min
Average
Max

Cabinet type and Materials

Mission LX-3D MKII has a Acoustic Suspension type cabinet. Acoustic Suspension loudspeakers aka Sealed speakers have no openings such as ports or slots.. They can be designed smaller, the bass is more accurate and tighter compared to ported designs but doesn't go as low on the lower end in general.

Wall Mounting

LX-3D MKII doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.

Does the Mission LX-3D MKII come with a Grille?

LX-3D MKII comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.

Recommended Accessories

Here is a list of accessories that we think you may need for the Mission LX-3D MKII.

  • Speaker Cable and Connectors
    • Speaker Cables with Banana Plugs: If you know the lenght of the cable you need, this is the easier option to connect your speakers with your amp.
    • Speaker Cables without Connectors: If you are not sure about the lenght or need longer than standard cables with plugs, choose this option.
    • Banana Connectors and Plugs: If you chose the cables without connectors option or already have some cable around, pick the banana plugs separately.
  • Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
  • Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
  • Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.

Official Product Page

Official manufacturer's product page for the Mission LX-3D MKII speaker can be found below:
Official Product Page for Mission LX-3D MKII

Mission LX-3D MKII Alternatives in Passive Bookshelf Speakers
Model Type Sensitivity Impedance Frequency
Mission LX-6 MKII
Compare
3-way 91 dB 8 ohms 35-20k Hz
Mission LX-5 MKII
Compare
2-way 90 dB 8 ohms 42-20k Hz
Mission LX-2 MKII
Compare
2-way 87 dB 8 ohms 55-20k Hz
Mission LX-4 MKII
Compare
2-way 89 dB 8 ohms 45-20k Hz
Mission LX-3 MKII
Compare
2-way 88 dB 8 ohms 45-20k Hz
Mission LX-C1 MKII
Compare
2-way 88 dB 8 ohms 75-20k Hz
Mission LX-1 MKII
Compare
2-way 86 dB 8 ohms 58-20k Hz
Mission LX-C2 MKII
Compare
2-way 89 dB 8 ohms 65-20k Hz
Frequently Asked Questions about Mission LX-3D MKII

What amplifier do you need for the Mission LX-3D MKII?

Mission rates the Mission LX-3D MKII for 20-80 watts of amplifier power. It is an 8-ohm speaker, the usual nominal load, so almost any amplifier or receiver can drive it.

Is the Mission LX-3D MKII easy to drive?

The Mission LX-3D MKII has a sensitivity of 86 dB. That is on the low side, so it needs more amplifier power than average to reach the same volume.

Does the Mission LX-3D MKII need a subwoofer?

The Mission LX-3D MKII reaches down to 105Hz (full range 105-20k Hz). That leaves the lowest octaves out, so a subwoofer will make a clear difference for films and bass-heavy music.

What drivers does the Mission LX-3D MKII use?

The Mission LX-3D MKII is a 2-way design using a 1" Soft-Dome tweeter and a 4" Composite fibre woofer.

Is the Mission LX-3D MKII sealed or ported?

The Mission LX-3D MKII uses a Sealed enclosure. A sealed box trades some output for tighter, more even bass and is the more forgiving choice close to a wall.

Can the Mission LX-3D MKII be bi-wired or bi-amped?

Yes. The Mission LX-3D MKII has two sets of terminals, so it can be bi-wired or bi-amped: bi-wiring runs separate cable to the treble and bass sections, bi-amping gives each its own amplifier channel. It uses Binding post terminals.

Does the Mission LX-3D MKII come with grilles?

Yes. The Mission LX-3D MKII comes with removable grilles.

How big and heavy is the Mission LX-3D MKII?

The Mission LX-3D MKII weighs 2.85kg / 6.3lbs each and measures 6-1/4 x 6-5/16 x 10-1/4inch (HxWxD).

How much does the Mission LX-3D MKII cost?

The Mission LX-3D MKII has a manufacturer's list price (MSRP) of $349 per pair.


Mission LX-3D MKII Detailed Specifications

General
BrandMission
Full Model NameMission LX-3D MKII
Speaker Type2-way Bookshelf
Power Range20-80 watts
Sensitivity86 dB
Impedance8 ohms
Max SPL99 dB
Frequency Response105-20k Hz
Release Date2020
DRIVERS
Woofer Size4-inch
Woofer CompositionComposite fibre
Tweeter Size1-inch
Tweeter TypeSoft-Dome
Crossover freq2.8kHz

CONNECTIONS
Connector TypeBinding post
Biamp InputsYes
PHYSICAL SPECS
Height158.0mm ( 6-1/4-inch)
Width160.0mm ( 6-5/16-inch)
Depth260.0mm ( 10-1/4-inch)
Height158.0mm ( 6-1/4-inch)
Weight2.85 kg (6.3 lbs)
EnclosureAcoustic Suspension
GrilleYes
Moisture ResistanceNo
OTHER
Handheld RemoteNo
Parts Warranty
Labor Warranty
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