☼ Beauté ◇ 珠不掩輝

跟一般動圈式單體相比,全音域單體因為發聲頻率範圍寬廣,效率高,質量低,不需使用分音器,能量損耗低,能以小功率擴大器輕鬆驅動,對於再生微弱的音樂訊號非常有利。

除了以上差異,讓我們來看看PHY-HP寬音域單體到底還有何魅力能獲得全球音響迷好評...

線圈絲帶絕緣 
所有PHY-HP單體線圈均採15微米天然絲帶披覆來避免MDI*失真!

犢皮紙線圈軸 
為消除MDI*失真,單體線圈是纏繞於特殊處理過的犢皮紙線圈軸上。

雙線圈設計 
25mm直徑單體線圈分別繞製於線圈軸的內外來提高散熱與傳輸效率。

純銅/純銀音圈 
有別一般單體的鋁質線圈,PHY-HP線圈為純銅,SAG系列的純銀線圈更能降低MDI*失真 。

壓電式高音 
無音圈於磁隙間摩擦,無磁鐵結構的雜散磁場。效率與阻抗,低諧波失真與擴大器負載,暫態響應極佳!

鋁鎳鈷磁芯 
低磁漏的鋁鎳鈷天然磁鐵,並且搭配低碳純鋼磁極。此舉能提昇磁鐵效率並維持將磁力線集中(無磁漏現象),且讓磁鐵間隙場強度達14,000高斯!

超輕紙材振盆 
以不同長度紙纖維混合編織的輕量振盆,使得PHY單體比同等面積人造材質振盆動圈式單體的移動質量少了60%以上!也就是說用相同動力來驅動PHY-HP單體時,其振盆反應速度會比一般單體快上250%,意味著PHY-HP單體能以驚人速度反應擴大機傳送過來的訊號!!

這些老式傳統單體製法在現代單體製程中幾乎已經絕跡失傳,唯有PHY-HP仍堅持古法,以最優良的天然素材與技術來製造這種夢幻極品!想進一步了解其部分奧妙,可按此觀看PHY-HP單體製程短片

沒有現代單體能與PHY-HP H21 LB15抗衡 - 僅有194050年代的逸品能夠相提並論,” 法國DIAPASON雜誌總編輯Jean Marie Piel在其評論這麼說過。

MDI =  介質微放電,是一種電流通過導體時會產生的現象,其干擾程度依導體材質而有所不同,而且披覆人造電介體的導體比披覆天然電介體的導體更容易引起此干擾失真。


Photo courtesy of J.H. Lim

In comparison against conventional dynamic drivers, PHY-HP drivers are very wide in frequency response, high in sensitivity, low in mass. Since crossover network is not necessary, they are very energy efficient and easy to drive, even with flea-power amplifiers. A great advantage at preserving and transmitting delicate music signals! In addition, PHY-HP drivers have the following unusual features... 

Silk Coverd Voice Coil
Voice coil of all PHY-HP units have 15 micrometer silk insulation to avoid the production of MDI* and other perturbations.

Vellum Former
Voice coil of PHY-HP driver is wound around impregnated vellum former to reduce MDI*.

Double Voice Coils 
Voice coils are wound on both the inside and outside of the Vellum formers for more efficient heat dissipation and minimal signal transmission losses.

Pure Copper/Silver Voice Coil
Unlike aluminum voice coils used in most drivers, PHY-HP uses pure copper and silver voice coils.

Piezo Tweeter
Diaphragm eliminates driven by p
iezoelectric crystal instead of vo
ice coil eliminate coil friction in the magnetic gap and stray magnetic field from magnet structure. Consequently, driver efficiency is increased, harmonic distortion lowered with better power handling and excellent transient response!

Alnico Magnet
Alnico Alcomax 3SC with mild steel pole pieces raises magnet efficiency and converges the magnetic force (no magnetic losses) to form an astonishing strength of 1.4 T.  

Ultralight Paper Cone
PHY-HP cones are made of paper with long and short fibers to obtain excellent rigidity with very light weight that is 60% less than conventional dynamic drivers. Meaning that PHY-HP driver will respond to amplifier signals 250% faster than conventional drivers!!

Knowledge acquired in the preceding decades for making high efficiency wide-range speaker driver has almost disappeared. Only PHY-HP insists on making the drivers in the traditional way with the best natural materials and craftsmanship. Click here to get a glimpse of manufacturing process of these wonderful products!

"Not a single present-day speaker can compare to H21 LB15 - the only competition comes from the best units of the 40s and 50s," wrote Jean Marie Piel in one of his editorials in DIAPASON.

*MDI= Micro Discharge of Interface. It states that wherever current passes through a conductor, molecular scale micro-discharges are produced within the conductor/insulation interface. Their intensity depends on several factors: firstly on electrical current but also on the nature of the dielectric, on it’s more or less close contact with the conductor, and on the state of the conductor’s surface.