In this review, we will be comparing 706 S2 and BW 606, two Passive Bookshelf speakers by Bowers & Wilkins. Let's have a brief look at the main features of B&W 706 S2 and B&W 606 first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how B&W 706 S2 and B&W 606 compares 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.
Both 706 S2 and BW 606 are 2-way speakers. 706 S2 features a 1" Decoupled Soft-Dome Tweeter and 1 x 6.5" Continuum Woofer . On the other hand, BW 606 features a 1" Decoupled Carbon Decoupled Dome Tweeter and 1 x 6.5" Continuum Woofer .
706 S2 has a frequency range of 50-28k Hz whereas BW 606 has a frequency range of 52-28k Hz. With a minimum frequency of 52Hz, the BW 606 can go slightly deeper then the 706 S2's min frequency of 50Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers under Bookshelf class in our database.
Impedance and Sensitivity
706 S2 and BW 606 has the same Impedance of 8 ohms and their sensitivity is also same at 88 dB.
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.
706 S2 and BW 606 has the same power range of 30-120 watts.
Keep in mind that higher max power handling value doesn't necesssarily make that a louder speaker compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters such as Impededance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Both 706 S2 and BW 606 features dual binding post speaker terminals for bi-amping or bi-wiring.
Cabinet Type and Port Position
Both 706 S2 and BW 606 have rear firing ports. Rear ported speakers generlly need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing too close to the walls may cause the bass to sound boomy.
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 706 S2's and B&W 606's external dimensions. 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) whereas B&W 606 has external dimensions of 345.0 x 190.0 x 324.0mm ( 13.5 x 7.4 x 12.7inch) .
B&W 706 S2 is 5mm shorter and 23mm less deeper than B&W 606 but it is also 10mm wider.
Below you can see the front view size comparison of B&W 706 S2 and B&W 606 in scale.
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 706 S2 is approximately 602.0cm2 / 93.3inch2 and base area of the B&W 606 is approximately 615.6cm2 / 95.4inch2. The 706 S2 requires 2% less surface area than the BW 606 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: