In this review, we will be comparing M105 and 706 S2, two Passive Bookshelf speakers from Revel and Bowers Wilkins. Let's have a brief look at the main features
of Revel M105 and B&W 706 S2 first before getting into our more
detailed comparison.
What size room are the Revel M105 and B&W 706 S2 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:
In the following sections, we will get into more detail in order to better understand how the Revel M105 and B&W 706 S2 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both M105 and 706 S2 are 2-way speakers.
| Driver |
Revel M105 |
B&W 706 S2 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.25-inch
|
1 x 6.5-inch
|
M105 features a 1" aluminum Hard-Dome with Acoustic Lens Waveguide Tweeter and 1 x 5.25" Aluminum Woofer with a Crossover frequency at 2300Hz. On the other hand, the 706 S2 features a 1" Decoupled Soft-Dome Tweeter and 1 x 6.5" Continuum Woofer .
Frequency Response
M105 has a frequency range of 60Hz- 20kHz whereas 706 S2 has a frequency range of 50-28k Hz. With a minimum frequency of 50Hz, the 706 S2 can go significantly deeper on the low side and provide stronger bass compared to the M105's min frequency of 60Hz.
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
High Frequency
Bookshelf Speakers
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
M105 and 706 S2 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. M105 sensitivity is rated at 86 dB and the 706 S2's is at 88 dB. This 2 dB difference makes the B&W 706 S2 a more sensitive speaker compared to Revel M105, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf Speakers
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
706 S2 features Binding post posts which make bi-amping or bi-wiring possible. M105 has a Binding post which doesn't feature bi-amping/bi-wiring.
Revel M105's Binding post terminals
Cabinet Type and Port Position
Both M105 and 706 S2 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 Revel M105's and B&W 706 S2's external dimensions. Revel M105 has external dimensions of 359.0 x 202.0 x 251.0mm ( 14-1/8 x 7-15/16 x 9-7/8inch) whereas B&W 706 S2 has external dimensions of 340.0 x 200.0 x 301.0mm ( 13.5-inch x 7.8-inch x 11.-inch) .
B&W 706 S2 is 2mm narrower and 19mm shorter than Revel M105 but it is also 50mm deeper.
Below you can see the front view size comparison of Revel M105 and B&W 706 S2 in scale.
Comparison image of Revel M105 and B&W 706 S2 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 Revel M105 is approximately 507.0cm2 / 78.6inch2 and base area of the B&W 706 S2 is approximately 602.0cm2 / 93.3inch2. The M105 requires 16% less surface area than the 706 S2 which gives it a small advantage 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:
Size Comparison image of Revel M105 and B&W 706 S2 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 Revel M105 weighs 7.14kg / 15.7lbs and the B&W 706 S2 weighs 8.05kg / 17.7lbs. This makes the 706 S2 13% heavier than the M105.
Here is a comparison of how M105 and 706 S2's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Revel M105?
Here are the items that are included inside the box of M105:
Bookshelf loudspeakerGrilleFoam port plugOwners Manual
What's in the Box of B&W 706 S2?
Here are the items that come with the 706 S2:
2 Bookshelf loudspeakers2 Grilles2 Two-piece foam port plugs8 Self-adhesive rubber feet4 Jumper-straps Manual Bowers & Wilkins brochureWarranty Information
 Base Surface Area |
507cm2 (202x251mm)
vs
602cm2 (200x301mm)
|
Takes less floor space |
 Price per pair* |
1650USD
vs
1999USD
|
costs less (*prices may change depending on the seller, location and time) |
 Sensitivity |
88 dB
vs
86 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
6.5 inches
vs
5.25 inches
|
Larger woofer |
| Low Frequency Response |
50 Hz
vs
60 Hz
|
Generates deeper bass |
 High Frequency Response |
28k Hz
vs
20k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Height |
340mm
vs
359mm
|
Easier to fit in smaller spaces |
| General |
Revel Performa3 M105 |
Bowers & Wilkins 706 S2 |
| Brand |
Revel |
Bowers Wilkins |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
50-120 watts |
30-120 watts |
| Sensitivity |
86 dB |
88 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
n/a |
3.7 ohms |
| Frequency Response |
60Hz- 20kHz |
50-28k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5.25" |
6.5" |
| Woofer Composition |
Aluminum |
Continuum |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Hard-Dome with Acoustic Lens Waveguide |
Decoupled Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2300Hz |
n/a |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
359.0mm (14.1") |
340.0mm (13.4") |
| Width |
202.0mm (8") |
200.0mm (7.9") |
| Depth |
251.0mm (9.9") |
301.0mm (11.9") |
| Weight |
7.14kg (15.7lbs) |
8.05kg (17.7lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
Wood/Lacquer |
MDF/Wood Veneer |
| Available Colors |
Gloss Walnut,Piano Black,Piano White |
Rosewood, Gloss Black, Satin White |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
24-25" |
24-26" |
| 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 |