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MartinLogan Foundation F2 vs B&W 702 S3 Comparison

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MartinLogan Foundation F2

Passive Floor-standing | 36-23k Hz

MartinLogan Foundation F2
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B&W 702 S3

Passive Floor-standing | 46-28k Hz

Bowers & Wilkins 702 S3
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MartinLogan Foundation F2 MartinLogan Foundati...
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B&W 702 S3 B&W 702 S3
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MartinLogan Foundati...
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B&W 702 S3
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MartinLogan Foundation F2 vs B&W 702 S3 Speaker Comparison

In this review, we will be comparing MartinLogan Foundation F2 and 702 S3, two Passive Floor-standing speakers from MartinLogan and Bowers Wilkins.

Let's have a brief look at the main features of MartinLogan Foundation F2 and B&W 702 S3 first before getting into our more detailed comparison.

MartinLogan Foundation F2 Key Specs

  • 3-way Design
  • 1" Folded Motion Ribbon Tweeter
  • 5.5" Midrange
  • 3 x 6.5" Aluminum Woofer
  • 36-23k Hz Frequency Response
  • 92 dB Sensitivity
  • Impedance: 4ohms
  • Power Range:up to 200watts
  • Weight:23.86kg
  • Dimensions (H x W x D): 1129.0" x 8-3/4" x 16"( 1129.0 x 223.0 x 407.0mm )

B&W 702 S3 Key Specs

  • 3-way Design
  • 1" Tweeter
  • 6" Midrange
  • 3 x 6.5" Aerofoil Woofer
  • 6" Midrange
  • 46-28k Hz Frequency Response
  • 90 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:30-300watts
  • Weight:33.46kg
  • Dimensions (H x W x D): 1138.0" x 7.6" x 15.4"( 1138.0 x 192.0 x 391.0mm )

What size room are the MartinLogan Foundation F2 and B&W 702 S3 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* MartinLogan Foundation F2 B&W 702 S3
Near-field Bad Bad
Small Room Poor Poor
Mid-size Room Good Average
Large Room Good Good
Very Large Room Poor Average

(* 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 MartinLogan Foundation F2 and B&W 702 S3 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 MartinLogan Foundation F2 and 702 S3 are 3-way speakers.

Driver MartinLogan Foundation F2 B&W 702 S3
Driver Setup 3-way 3-way
Tweeter 1-inch 1-inch
Midrange 1 x 5.5-inch 1 x 6-inch
Woofer 3 x 6.5-inch 3 x 6.5-inch

MartinLogan Foundation F2 features a 1" Gen2 Obsidian Folded Motion Ribbon Tweeter , a 5.5" Midrange and 3 x 6.5" Aluminum Woofer with a Crossover frequency at 330 Hz - 3600 Hz. On the other hand, the 702 S3 features a 1" Tweeter , a 6" Midrange and 3 x 6.5" Aerofoil Woofer .

Frequency Response

MartinLogan Foundation F2 has a frequency range of 36-23k Hz whereas 702 S3 has a frequency range of 46-28k Hz. With a minimum frequency of 36Hz, the MartinLogan Foundation F2 can go significantly deeper on the low side and provide stronger bass compared to the 702 S3's min frequency of 46Hz.

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

MartinLogan Foundation F2
702 S3
Min
Average
Max
High Frequency

Floor-standing Speakers

MartinLogan Foundation F2
B&W 702 S3
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

MartinLogan Foundation F2 is a 4 ohms speaker compared to the 702 S3 which has a nominal impedance of 8 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the MartinLogan Foundation F2 can provide this impedance level.

These two speakers also have different sensitivity levels. MartinLogan Foundation F2 sensitivity is rated at 92 dB and the 702 S3's is rated at 90 dB. This 4 dB difference makes the MartinLogan Foundation F2 a more sensitive speaker compared to B&W 702 S3, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

MartinLogan Foundation F2
702 S3
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.

MartinLogan Foundation F2 can handle a max power of 300 watts RMS from the amp the whereas MartinLogan Foundation F2 has a max power handling value of 200 watts RMS , 100 watts less than the 702 S3.

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

702 S3 features Binding post posts which make bi-amping or bi-wiring possible. MartinLogan Foundation F2 has a Binding post which doesn't feature bi-amping/bi-wiring.

MartinLogan Foundation F2 Terminals
MartinLogan Foundation F2's Binding post terminals

B&W 702 S3Binding post Terminals
B&W 702 S3's Binding post terminals allows Bi-amping or bi-wiring

Cabinet Type and Port Position

Both MartinLogan Foundation F2 and 702 S3 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 MartinLogan Foundation F2's and B&W 702 S3's external dimensions. MartinLogan Foundation F2 has external dimensions of 1129.0 x 223.0 x 407.0mm ( 44-7/16inch x 8-3/4inch x 16inch ) whereas B&W 702 S3 has external dimensions of 1138.0 x 192.0 x 391.0mm ( 44.8-inch x 7.6-inch x 15.4-inch) .

B&W 702 S3 is 31mm narrower and 16mm less deeper than MartinLogan Foundation F2 but it is also 9mm 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 MartinLogan Foundation F2 is approximately 907.6cm2 / 140.7inch2 and base area of the B&W 702 S3 is approximately 750.7cm2 / 116.4inch2. The MartinLogan Foundation F2 requires 21% more surface area than the 702 S3 which gives it a small disadvantage on placement in tight spaces.

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 MartinLogan Foundation F2 weighs 23.86kg / 52.5lbs and the B&W 702 S3 weighs 33.46kg / 73.6lbs. This makes the 702 S3 40% heavier than the MartinLogan Foundation F2.

Here is a comparison of how MartinLogan Foundation F2 and 702 S3's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
MartinLogan Foundation F2
B&W 702 S3
Min
Average
Max

What's in the Box of B&W 702 S3?

Here are the items that come with the 702 S3:
  • Floorstanding loudspeaker
  • Grille
  • Plinth (base)
  • 2 Jumper-straps (pre-installed)
  • Two-piece foam port plug
  • 4 Rubber feet
  • 4 Spike feet
  • 4 Lock-nuts
  • 4 Screws
  • 4 Washers
  • 4 Lock washers
  • Hex-key
  • Manual
  • Bowers & Wilkins brochure
  • Warranty Information

  • Reasons to choose MartinLogan Foundation F2 over Bowers & Wilkins 702 S3
    Sensitivity 92 dB vs 88 dB Play louder with same amount of amplification power
    Low Frequency Response 36 Hz vs 46 Hz Generates deeper bass
    Height 1129mm vs 1138mm Easier to fit in smaller spaces
    Price per pair* 1999USD vs 6998USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Bowers & Wilkins 702 S3 over MartinLogan Foundation F2

    Max Input Power 300 watts vs 200 watts Handle more power from your amplifier
    Nominal Impedance 8 ohms vs 4 ohms Less selective with amplifiers
    High Frequency Response 28k Hz vs 23k Hz Generates higher frequency
    Bi-Amping and Bi-Wiring Yes vs No Allows bi-amping and bi-wiring connections
    Base Surface Area 750cm2 vs 907cm2 Takes less floor space
    MartinLogan Foundation F2 vs B&W 702 S3 Specs Table
    Detailed comparison of specifications
    General MartinLogan Foundation F2 Bowers & Wilkins 702 S3
    Brand MartinLogan Bowers Wilkins
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range up to 200 watts 30-300 watts
    Sensitivity 92 dB 90 dB
    Impedance 4 ohms 8 ohms
    Impedance n/a 3.1 ohms
    Frequency Response 36-23k Hz 46-28k Hz
    Drivers
    Woofer Quantity 3 3
    Woofer Size 6.5" 6.5"
    Woofer Composition Aluminum Aerofoil
    Woofer Surround Material n/a Rubber
    Tweeter Size 1" 1"
    Tweeter Type Folded Motion Ribbon n/a
    Aimable Tweeter No No
    Midrange Driver 5.5" 6"
    Crossover Frequency 330 Hz - 3600 Hz n/a
    Firing Direction rear rear
    Physical Specs
    Height 1129.0mm (44.4") 1138.0mm (44.8")
    Width 223.0mm (8.8") 192.0mm (7.6")
    Depth 407.0mm (16") 391.0mm (15.4")
    Weight 23.86kg (52.5lbs) 33.46kg (73.6lbs)
    Enclosure Bass Reflex Bass Reflex
    Finish n/a MDF/Lacquer
    Available Colors Walnut,Black,Satin White Gloss Black,Satin White,Mocha,Rosenut
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs No Yes
    Other
    Parts Warranty 5 years 5 Years
    Labor Warranty 5 years 5 Years

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