In this review, we will be comparing HTM72 S3 and HTM71 S3, two Passive Center Channel speakers by Bowers Wilkins
Let's have a brief look at the main features
of B&W HTM72 S3 and B&W HTM71 S3 first before getting into our more
detailed comparison.
B&W HTM72 S3 Key Specs
- 2-way Design
- 1" Decoupled Soft-Dome Tweeter
- 2 x 5" Continuum cone Woofer
- 70-28k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-120watts
- Weight:9.70kg
- Dimensions (H x W x D): 166.0" x 18-13/16" x 11-15/16"( 166.0 x 478.0 x 304.0mm )
B&W HTM71 S3 Key Specs
- 3-way Design
- 1" Solid Body Soft-Dome Tweeter
- 4" Midrange
- 4 x 5" Aerofoil Profile Woofer
- 4" Midrange
- 50-28k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-200watts
- Weight:17.50kg
- Dimensions (H x W x D): 235.0" x 24-3/4" x 14"( 235.0 x 629.0 x 356.0mm )
HTM72 S3 and HTM71 S3 are members of Bowers Wilkins's 700 S3 series of speakers. Below you can find the loudspeakers from this series.
What size room are the B&W HTM72 S3 and B&W HTM71 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* |
B&W HTM72 S3 |
B&W HTM71 S3 |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
Poor |
(* 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 B&W HTM72 S3 and B&W HTM71 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
One of the fundamental differences between these two speakers is that HTM72 S3 is a 2-way design whereas the HTM71 S3 is a 3-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
B&W HTM72 S3 |
B&W HTM71 S3 |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 4-inch |
|
Woofer
|
2 x 5-inch
|
4 x 5-inch
|
HTM72 S3 features a 1" Decoupled Carbon Decoupled Soft-Dome Tweeter and 2 x 5" Continuum cone Woofer . On the other hand, the HTM71 S3 features a 1" Decoupled Carbon Solid Body Soft-Dome Tweeter , a 4" Midrange and 4 x 5" Aerofoil Profile Woofer .
Frequency Response
HTM72 S3 has a frequency range of 70-28k Hz whereas HTM71 S3 has a frequency range of 50-28k Hz. With a minimum frequency of 50Hz, the HTM71 S3 can go significantly deeper on the low side and provide stronger bass compared to the HTM72 S3's min frequency of 70Hz.
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 Center Channel class in our database.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel 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
HTM72 S3 and HTM71 S3 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. HTM72 S3 sensitivity is rated at 87 dB and the HTM71 S3's is at 89 dB. This 2 dB difference makes the B&W HTM71 S3 a more sensitive speaker compared to B&W HTM72 S3, hence will play louder with the same amount of watts.
Sensitivity
Center Channel 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.
HTM72 S3 can handle a max power of 200 watts RMS from the amp the whereas HTM72 S3 has a max power handling value of 120 watts RMS , 80 watts less than the HTM71 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
Both HTM72 S3 and HTM71 S3 features dual binding post speaker terminals for bi-amping or bi-wiring.
B&W HTM72 S3's Binding post terminals allows Bi-amping or bi-wiring
B&W HTM71 S3's Binding post terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both HTM72 S3 and HTM71 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 B&W HTM72 S3's and B&W HTM71 S3's external dimensions. B&W HTM72 S3 has external dimensions of 166.0 x 478.0 x 304.0mm ( 6-1/2inch x 18-13/16inch x 11-15/16inch ) whereas B&W HTM71 S3 has external dimensions of 235.0 x 629.0 x 356.0mm ( 9-1/4inch x 24-3/4inch x 14inch ) .
B&W HTM71 S3 is clearly the larger of the two speakers. Its body is 151mm wider, 69mm taller and 52mm deeper than B&W HTM72 S3.
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 B&W HTM72 S3 is approximately 1453.1cm2 / 225.2inch2 and base area of the B&W HTM71 S3 is approximately 2239.2cm2 / 347.1inch2. The HTM72 S3 requires 35% less surface area than the HTM71 S3 which gives it a small advantage 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 B&W HTM72 S3 weighs 9.70kg / 21.3lbs and the B&W HTM71 S3 weighs 17.50kg / 38.5lbs. This makes the HTM71 S3 80% heavier than the HTM72 S3.
Here is a comparison of how HTM72 S3 and HTM71 S3's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
What's in the Box of B&W HTM72 S3?
Here are the items that are included inside the box of HTM72 S3:
Center-channel loudspeakerGrilleTwo-piece foam port plug4 Self-adhesive rubber feet4 Jumper-straps (pre-installed)ManualBowers & Wilkins brochureWarranty InformationOnline Registration Card
What's in the Box of B&W HTM71 S3?
Here are the items that come with the HTM71 S3:
Center-channel loudspeakerGrilleTwo-piece foam port plug4 Self-adhesive rubber feet4 Jumper-straps (pre-installed)ManualBowers & Wilkins brochureWarranty InformationOnline Registration Card
 Height |
166mm
vs
235mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1453cm2
vs
2239cm2
|
Takes less floor space |
 Price per pair* |
1499USD
vs
2499USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
200 watts
vs
120 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
 Sensitivity |
89 dB
vs
87 dB
|
Play louder with same amount of amplification power |
 Number of Woofers |
4
vs
2
|
More woofers |
|
Low Frequency Response |
50 Hz
vs
70 Hz
|
Generates deeper bass |
| General |
Bowers & Wilkins HTM72 S3 |
Bowers & Wilkins HTM71 S3 |
| Brand |
Bowers Wilkins |
Bowers Wilkins |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
30-120 watts |
30-200 watts |
| Sensitivity |
87 dB |
89 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
3 ohms |
n/a |
| Frequency Response |
70-28k Hz |
50-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
4 |
| Woofer Size |
5" |
5" |
| Woofer Composition |
Continuum cone |
Aerofoil Profile |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Decoupled Soft-Dome |
Solid Body Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
4" |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
166.0mm (6.5") |
235.0mm (9.3") |
| Width |
478.0mm (18.8") |
629.0mm (24.8") |
| Depth |
304.0mm (12") |
356.0mm (14") |
| Weight |
9.70kg (21.3lbs) |
17.50kg (38.5lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Available Colors |
Gloss Black |
Gloss Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |