The Bowers & Wilkins 702/705 speaker series is now available in Midnight Blue. That being said, the 702 and 705 models in the 700 series are quite special. They both have the tweeter same as the 800 series external to the speaker. They are the only two with the signature version. As a result, the 702 and 705 models, as well as other models, are not exactly the same.
Bowers & Wilkins, in fact, For example, the Silver Jubilee Signature bookshelf speakers were introduced in 1991 to commemorate Bowers & Wilkins’ 25th anniversary. The 800 and 805 Signature speakers were released in 2001.
To commemorate the company’s 40th anniversary, the Signature Diamond 40th Anniversary speakers were released in 2006. And the 702 and 705 two Signature speakers were released in 2021, precisely to commemorate the 55th anniversary of Bowers & Wilkins’ founding.
I reviewed the 705 Signature bookshelf speakers in August of last year, and this time I’m listening to the 702 Signature speakers, which are road unit floorstanding speakers. The tweeter is a separate design, with the same carbon film hemispherical tweeter.
702 signature version of the midrange unit is Continuum cone midrange unit. Although this unit and 805 D3 / D4 like the use of Continuum cone, but they are not the same. 805 D3 / D4 signature version bookshelf speaker that is only the bass unit, and 702 signature version that 805 D3/D4 is only the midrange unit, only responsible for the midrange playback. From the outside can clearly see that the two are The rubber edge is 805 D3/D4, and the foam edge is 702 Signature .
Furthermore, the 702 Signature employs a decoupling structure in the midrange section, which is based on the design of the 800 series coupling structure. The approach is to connect a rod in the back of the woofer that extends straight back, and then connect a spring to the back of the speaker. The midrange unit then transfers excess vibration to the spring via this device, allowing the spring’s elasticity to unload, with the goal of making the midrange more clear and clean.
The midrange section of the 702 Signature also features a decoupling structure derived from the 800 series.
In terms of bass reproduction, the 702 Signature is outfitted with three 165mm diameter woofers, each with an Aerofoil cone. What is an aerofoil cone? A cross-section of the cone clearly shows the shape of an airplane wing. This cone shape is also from the 800 series. The thickness of the cone varies from inside to outside, and the back of the cone is rounded,
The 705 Signature Aerofoil cone is made of paper with EPS (polystyrene foam) filling in the middle, ensuring that the cone is lightweight, sensitive, and easy to push for the amplifier.
This is the cone structure used in the 800 D3/800 D4 series; the 705 signature version also uses this cone structure, but the material is different.
When compared to the ordinary version of the corresponding tuning means, crossover above the use of Mundorf (Mundorf) EVO series capacitors, the internal connection line also uses the V.D.H audiophile wire, the sound performance will certainly not be the same.
The Bowers & Wilkins 702 Signature floor-standing speaker has an independent midrange unit, and just in the midrange part of the sound performance has a big difference, 702 Signature of the midrange sound not only sounds more information, but also sounds more full.
listen to Pavarotti singing Italian folk song “My Sun,” the human voice sounds not only full and powerful, but the sound image is significantly larger, and also higher clarity. There is also more clarity, and it is clear to notice that the 702 Signature is more relaxed and natural as a result of the midrange reduction at high sound pressure, sounding less oppressive and with a higher openness of sound.
The bass effect, after all, the 702 Signature speaker uses three 165mm caliber woofers, the bass output is still very powerful. I use 200W per channel output power NAD M28 driven by Bi-Amp (with four channels, each 2 channels to drive a speaker), as far as possible to squeeze the 702 Signature bass.
Playing ” 1812 Overture,” the 702 Signature bass impact is still quite fierce, clean and fast. The sense of hearing appears to be full of impulse When playing the “Pirates of the Caribbean” theme music, even the naked eye can see the woofer moving violently back and forth, and the M28 pushes the mid-bass to be very full and powerful.
Listen to Ultra Art Record released “Etrenne” jazz female album, the album belongs to the new recording of new production, from the perspective of sound production is quite audiophile, 702 signature version to play feel very right, the sound image is vivid and rich, the positioning of the presentation of the vivid, prominent vocals, bass and midrange also come rich and elastic,.
Listen to the classic recordings, on the other hand. For example, Franzese Catti’s “An Evening of Paganini” is a recording from the 1950s; the sound quality is inferior to modern recordings. But what I like about it is the dazzling interpretation, and the old recordings retain the flavor of the era. I recall taking the live recording of this recital to the home of a player who used vintage equipment, and the equipment he had was mostly from the 1950s and 1960s. Listening to this old recording on a vintage stereo, it is indeed warm and charming.
Apart from the timbre difference, the 702 Signature performance of this classic recording of the violin sound is majestic and powerful, with a fresh and crisp atmosphere, and the 702 Signature tower speaker is more to give me a high sense of sound perspective and clarity, so I can also clearly hear the sound details outside the music in the 702 Signature . Some of the noise from the recording itself, or other factors in the concert scene caused by some inadvertent sound, for example, can be very clear in the Bowers & Wilkins 702 Signature , very transparently reflected.
The Bowers & Wilkins 702 speaker incorporates more design elements from the 800 flagship series, such as the external tweeter Continuum cone, the decoupling structure applied to the midrange unit, the Aerofoil (winged string) cone, as well as the original crossover and internal cable optimization, giving the 702 Signature speaker sound reproduction effect in the entire 700 series more advantages.
The Specs of Bowers & Wilkins 702
- Frequency Response (dB): 46Hz28kHz, 90dB sensitivity at 2.83V/m
- Impedance: 4 ohms (minimum) Ohms (3.2 ohms)
- Harmonic distortion: 1% @86Hz28kHz, 90dB/m; 0.5 % @110Hz20kHz, 90dB/m
- Recommended Amplifier Power: 30~300W RMS