In this review, we will be comparing 607 S2 AE and UBR62, two Passive Bookshelf speakers from Bowers Wilkins and ELAC.
Let's have a brief look at the main features
of B&W 607 S2 and ELAC Uni-Fi Ref UBR62 first before getting into our more
detailed comparison.
B&W 607 S2 Key Specs
- 2-way Design
- 1" Decoupled Double Dome Tweeter
- 5" Continuum Woofer
- 52-28k Hz Frequency Response
- 84 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-100watts
- Weight:4.70kg
- Dimensions (H x W x D): 301.0" x 6-1/2" x 9-1/8"( 301.0 x 166.0 x 232.0mm )
ELAC Uni-Fi Ref UBR62 Key Specs
- 3-way Design
- 1" soft dome Tweeter
- 4" Midrange
- 6.5" Aluminum Woofer
- 4" Midrange
- 41-35k Hz Frequency Response
- 85 dB Sensitivity
- Impedance: 6ohms
- Power Range:up to 140watts
- Weight:10.70kg
- Dimensions (H x W x D): 359.0" x 8-1/4" x 13-1/16"( 359.0 x 210.0 x 332.0mm )
What size room are the B&W 607 S2 and ELAC Uni-Fi Ref UBR62 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 607 S2 |
ELAC Uni-Fi Ref UBR62 |
| Near-field |
Average |
Poor |
| Small Room |
Good |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Poor |
Average |
| Very Large Room |
Bad |
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 607 S2 and ELAC Uni-Fi Ref UBR62 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
One of the fundamental differences between these two speakers is that 607 S2 AE is a 2-way design whereas the UBR62 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 607 S2 |
ELAC Uni-Fi Ref UBR62 |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 4-inch |
|
Woofer
|
1 x 5-inch
|
1 x 6.5-inch
|
607 S2 AE features a 1" Aluminum Decoupled Double Dome Tweeter and 1 x 5" Continuum Woofer . On the other hand, the UBR62 features a 1" soft dome Tweeter , a 4" Midrange and 1 x 6.5" Aluminum Woofer .
Frequency Response
607 S2 AE has a frequency range of 52-28k Hz whereas UBR62 has a frequency range of 41-35k Hz. With a minimum frequency of 41Hz, the UBR62 can go significantly deeper on the low side and provide stronger bass compared to the 607 S2 AE's min frequency of 52Hz.
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
607 S2 AE is a 8 ohms speaker compared to the UBR62 which has a nominal impedance of 6 ohms.
These two speakers also have different sensitivity levels. 607 S2 AE sensitivity is rated at 84 dB and the UBR62's is rated at 85 dB. This 1 dB difference makes the ELAC Uni-Fi Ref UBR62 a more sensitive speaker compared to B&W 607 S2, 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.
607 S2 AE can handle a max power of 140 watts RMS from the amp the whereas 607 S2 AE has a max power handling value of 100 watts RMS , 40 watts less than the UBR62.
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 607 S2 AE and UBR62 features dual binding post speaker terminals for bi-amping or bi-wiring.
B&W 607 S2's Binding post terminals allows Bi-amping or bi-wiring
ELAC Uni-Fi Ref UBR62's Binding post terminals allows Bi-amping or bi-wiring
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 607 S2's and ELAC Uni-Fi Ref UBR62's external dimensions. B&W 607 S2 has external dimensions of 301.0 x 166.0 x 232.0mm ( 11-13/16 x 6-1/2 x 9-1/8inch) whereas ELAC Uni-Fi Ref UBR62 has external dimensions of 359.0 x 210.0 x 332.0mm ( 14-1/8 x 8-1/4 x 13-1/16inch) .
ELAC Uni-Fi Ref UBR62 is clearly the larger of the two speakers. Its body is 44mm wider, 58mm taller and 100mm deeper than B&W 607 S2.
Below you can see the front view size comparison of B&W 607 S2 and ELAC Uni-Fi Ref UBR62 in scale.
Comparison image of B&W 607 S2 and ELAC Uni-Fi Ref UBR62 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 B&W 607 S2 is approximately 385.1cm2 / 59.7inch2 and base area of the ELAC Uni-Fi Ref UBR62 is approximately 697.2cm2 / 108.1inch2. The 607 S2 AE requires 45% less surface area than the UBR62 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 B&W 607 S2 and ELAC Uni-Fi Ref UBR62 on a Media Console