BW HTM71 S2 vs BW HTM72 S2 Comparison

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BW HTM71 S2

Passive Center Channel | 50-28k Hz

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BW HTM72 S2

Passive Center Channel | 70-28k Hz

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BW HTM71 S2

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BW HTM72 S2

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BW HTM71 S2

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BW HTM72 S2

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BW HTM71 S2 vs BW HTM72 S2 Speaker Comparison

In this review, we will be comparing HTM71 S2 and HTM72 S2, two Passive Center Channel speakers by Bowers Wilkins Let's have a brief look at the main features of BW HTM71 S2 and BW HTM72 S2 first before getting into our more detailed comparison.

BW HTM71 S2 Key Specs

3-way Design

1" Decoupled Carbon Dome Tweeter

4" Midrange

2 x 6.5" Aerofoil Profile Woofer

50-28k Hz Frequency Response

89 dB Sensitivity

Impedance: 8ohms

Power Range:30-200watts

Weight:18.05kg

Dimensions (H x W x D): 228.0" x 23-1/4" x 11-7/8"( 228.0 x 591.0 x 302.0mm )

BW HTM72 S2 Key Specs

2-way Design

1" Decoupled Carbon Dome Tweeter

2 x 5" Continuum Woofer

70-28k Hz Frequency Response

87 dB Sensitivity

Impedance: 8ohms

Power Range:30-120watts

Weight:9.14kg

Dimensions (H x W x D): 169.0" x 18-15/16" x 10-15/16"( 169.0 x 482.0 x 278.0mm )

HTM71 S2 and HTM72 S2 are members of Bowers Wilkins's 700 S2 Anniversary Edition series of speakers. Below you can find the loudspeakers from this series.

Bowers Wilkins 700 S2 Anniversary Edition Series History

Model	Body	Frequency	Sensitivity	Impedance	Woofer
B&W 706 S2	Bookshelf	50-28k Hz	88 dB	8Ω	1 x 6.5"
B&W 703 S2	Floor-standing	46-28k Hz	89 dB	8Ω	2 x 6.5"
B&W 704 S2	Floor-standing	48-28k Hz	88 dB	8Ω	2 x 5"
B&W 705 S2	Bookshelf	50-28k Hz	88 dB	8Ω	1 x 6.5"
B&W 707 S2	Bookshelf	50-28k Hz	84 dB	8Ω	1 x 5"
B&W 702 S2	Floor-standing	46-28k Hz	90 dB	8Ω	3 x 6.5"
BW HTM71 S2	Center Channel	50-28k Hz	89 dB	8Ω	2 x 6.5"
BW HTM72 S2	Center Channel	70-28k Hz	87 dB	8Ω	2 x 5"

What size room are the BW HTM71 S2 and BW HTM72 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:

Listening Environment*	BW HTM71 S2	BW HTM72 S2
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 BW HTM71 S2 and BW HTM72 S2 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 HTM71 S2 is a 3-way design whereas the HTM72 S2 is a 2-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	BW HTM71 S2	BW HTM72 S2
Driver Setup	3-way	2-way
Tweeter	1-inch	1-inch
Midrange	1 x 4-inch	-
Woofer	2 x 6.5-inch	2 x 5-inch

HTM71 S2 features a 1" Decoupled Carbon Dome Tweeter , a 4" Midrange and 2 x 6.5" Aerofoil Profile Woofer . On the other hand, the HTM72 S2 features a 1" Decoupled Carbon Dome Tweeter and 2 x 5" Continuum Woofer .

Frequency Response

HTM71 S2 has a frequency range of 50-28k Hz whereas HTM72 S2 has a frequency range of 70-28k Hz. With a minimum frequency of 50Hz, the HTM71 S2 can go significantly deeper on the low side and provide stronger bass compared to the HTM72 S2'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

HTM71 S2

HTM72 S2

Min

Average

Max

High Frequency

Center Channel Speakers

BW HTM71 S2

BW HTM72 S2

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

HTM71 S2 and HTM72 S2 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. HTM71 S2 sensitivity is rated at 89 dB and the HTM72 S2's is at 87 dB. This 2 dB difference makes the BW HTM71 S2 a more sensitive speaker compared to BW HTM72 S2, hence will play louder with the same amount of watts.

Sensitivity

Center Channel Speakers

HTM71 S2

HTM72 S2

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.

HTM71 S2 can handle a max power of 200 watts RMS from the amp the whereas HTM72 S2 has a max power handling value of 120 watts RMS, 80 watts less than the HTM71 S2.

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 HTM71 S2 and HTM72 S2 features dual binding post speaker terminals for bi-amping or bi-wiring.

Cabinet Type and Port Position

Both HTM71 S2 and HTM72 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 BW HTM71 S2's and BW HTM72 S2's external dimensions. BW HTM71 S2 has external dimensions of 228.0 x 591.0 x 302.0mm ( 8-15/16 x 23-1/4 x 11-7/8inch) whereas BW HTM72 S2 has external dimensions of 169.0 x 482.0 x 278.0mm ( 6-5/8 x 18-15/16 x 10-15/16inch) .

BW HTM71 S2 is clearly the larger of the two speakers. Its body is 109mm wider, 59mm taller and 24mm deeper than BW HTM72 S2.

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 BW HTM71 S2 is approximately 1784.8cm² / 276.6inch² and base area of the BW HTM72 S2 is approximately 1340.0cm² / 207.7inch². The HTM71 S2 requires 33% more surface area than the HTM72 S2 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 BW HTM71 S2 weighs 18.05kg / 39.7lbs and the BW HTM72 S2 weighs 9.14kg / 20.1lbs. This makes the HTM71 S2 97% heavier than the HTM72 S2.

Here is a comparison of how HTM71 S2 and HTM72 S2's weights compare with the average, max and min weights in Passive Center Channel class.

Weight
All Center Channel Speakers

BW HTM71 S2

BW HTM72 S2

Min

Average

Max

What's in the Box of BW HTM71 S2?

Here are the items that are included inside the box of HTM71 S2:

Center-channel loudspeaker

Grille

2 Two-piece foam port plugs

4 Self-adhesive rubber feet

4 Jumper-straps (pre-installed)

Manual

Bowers Wilkins brochure

Warranty Information

What's in the Box of BW HTM72 S2?

Here are the items that come with the HTM72 S2:

Center-channel loudspeaker

Grille

Two-piece foam port plug

4 Self-adhesive rubber feet

4 Jumper-straps (pre-installed)

Manual

Bowers Wilkins brochure

Warranty Information

Reasons to choose Bowers & Wilkins HTM71 S2 over Bowers & Wilkins HTM72 S2

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
Woofer Size	6.5 inches vs 5 inches	Larger woofer
Low Frequency Response	50 Hz vs 70 Hz	Generates deeper bass

Reasons to choose Bowers & Wilkins HTM72 S2 over Bowers & Wilkins HTM71 S2

Minimum Impedance	4.3 ohms vs 3.0 ohms	Very low impedance levels puts more pressure on amplifier
Height	169mm vs 228mm	Easier to fit in smaller spaces
Base Surface Area	1340cm² (482x278mm) vs 1784cm² (591x302mm)	Takes less floor space
Price per pair*	1199USD vs 1999USD	costs less (*prices may change depending on the seller, location and time)

BW HTM71 S2 vs BW HTM72 S2 Specs Table

Detailed comparison of specifications

General	Bowers & Wilkins HTM71 S2	Bowers & Wilkins HTM72 S2
Brand	Bowers Wilkins	Bowers Wilkins
Speaker Type	Center channel speaker	Center channel speaker
Power Range	30-200 watts	30-120 watts
Sensitivity	89 dB	87 dB
Impedance	8 ohms	8 ohms
Impedance	3.0 ohms	4.3 ohms
Frequency Response	50-28k Hz	70-28k Hz
Drivers
Woofer Quantity	2	2
Woofer Size	6.5"	5"
Woofer Composition	Aerofoil Profile	Continuum
Woofer Surround Material	Rubber	Rubber
Tweeter Size	1"	1"
Tweeter Type	Decoupled Carbon Dome	Decoupled Carbon Dome
Aimable Tweeter	No	No
Midrange Driver	4"	No
Firing Direction	rear	rear
Physical Specs
Height	228.0mm (9")	169.0mm (6.7")
Width	591.0mm (23.3")	482.0mm (19")
Depth	302.0mm (11.9")	278.0mm (10.9")
Weight	18.05kg (39.7lbs)	9.14kg (20.1lbs)
Enclosure	Bass Reflex	Bass Reflex
Available Colors	Gloss Black, Satin White, Rosenut	Gloss Black, Satin White, Rosenut
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