英國 London Decca 唱頭

Avantgarde-HK

The London Decca cartridges may be the only ones which have no cantilever, at least in the conventional sense. This appears to be the underpinning of their stunning success. It has been said that the London Deccas "reek of musicality."

he Reference has no long cantilever and no "rubbery" fulcrum point to absorb, dissipate and smear the vital musical energy. Instead, the stylus is attached directly to a magnetically active metal support just a few microns thick (armature) which passes through the center of the main generating coil positioned only about 1 millimeter above the stylus! The stylus motion is not inverted or "transformed" to a smaller value, as in long cantilever designs. Flowing from this immediate positive-direct scanning of the groove is a breathtaking, lifelike quality. The listener tends to feel that the performing artists are actually in the same room, with a startling, palpable presence.

Avantgarde-HK

London Decca 獨有之無針杆技術, 令聲音全無阻隔, 一聽難忘

Avantgarde-HK

獨特的設計另London Decca 發出極美的音色, 也是獨一無二的.  

Avantgarde-HK

London Decca 動鐵唱頭是由固定磁鐵與線圈組成，以針桿帶動鐵芯從而改變磁力線的分布量，借此輸出電平信號.  

Avantgarde-HK

有眾多唱頭中, London Decca 唱頭較特別之處是它沒有damper, 取而代之是用針干上一條線來拉緊針尖代替.聲音較傳統設計通透,強勁.

Avantgarde-HK

London Decca Gold Cartridge

Other cartridges (both moving coil and moving magnet) have styli mounted on the long end of a thin tube (cantilever) which works like a lopsided "see-saw." The short end of the cantilever attaches to either a coil of wire or a magnet. At the fulcrum point, a flexible "rubbery" sleeve functions as a pivot, allowing the stylus/cantilever assembly to respond to the "wiggles" in the LP groove.


Because the front section of the cantilever, which holds the stylus, is much longer than the rear section that is attached to the coil or magnet, a large movement of the stylus is transformed to a smaller movement at the coil or magnet, possibly causing cantilever-design cartridges to sound dynamically compressed and lacking in transient attack. London Decca's engineers advise that this problem with dynamics and transients is compounded by the cantilever's "rubbery" fulcrum point which tends to absorb a significant amount of the stylus-generated motion before it can reach the coil/magnet electrical generator assembly. Also, a smearing of the sound is said to occur, which many folks refer to as "cantilever haze."

The Gold has no long cantilever and no "rubbery" fulcrum point to absorb, dissipate and smear the vital musical energy. Instead, the stylus is attached directly to a magnetically active metal support just a few microns thick (armature) which passes through the center of the main generating coil positioned only about 1 millimeter above the stylus! The stylus motion is not inverted or "transformed" to a smaller value, as in long cantilever designs. Flowing from this immediate positive-direct scanning of the groove is a breathtaking, lifelike quality. The listener tends to feel that the performing artists are actually in the same room, with a startling, palpable presence.

The Gold uses a nude, polished, grain-oriented elliptical stylus, with the same generator and similar housing of the Super Gold. We estimate the Gold cartridge provides 80% to 85% of the state-of-the-art musical realism provided by the Decca Jubilee. Frequency range: 20Hz to 40 kHz.

SPECIFICATIONS:
Stylus: nude elliptical
Output: 5mV
VTF: 1.8g
Weight: 6.7g
Output impedance: 2k ohms
Dynamic compliance: 15x10-6cm/Dyne
Load impedance: 47k ohms

Avantgarde-HK

Avantgarde-HK

許多朋友不知, 原來London Decca 的帽子是有得配的

Avantgarde-HK

轉載:
聲音的無上幻覺

http://illusionofsound.blogspot.com/2011/10/decca.html

Avantgarde-HK

London Decca可能是唯一沒有針干的唱頭。這亦是她聲音特別之處,是“充滿歡樂嘅音樂”.
London Decca Reference 沒有針干，也沒有damper，低消和音染去影響音樂的重播。相反，一體化唱針直接連接幾微米厚的磁性支架上，該金屬支架穿過主線圈的中心，位於唱針上方僅約1mm！London Decca 唱頭的設計, 唱針的活動不會令訊號'反轉'及將訊號數值'變少'。這設計令唱針正向直接檢索唱片凹槽的聲音，效果令人驚嘆，相當逼真的音樂重現面前。

Avantgarde-HK

Decca的獨特設計:
第一點是特殊的無阻尼橡膠(damping rubber)的針桿設計.聲音分外透明, 直接.





第二個設計的特點是, Decca的工程師希望將所謂的”發電機構”(線圈與磁鐵)盡可能的接近震動起始的位置(針尖), 達到最直接, 最少時間延遲的能量轉換.分析力更好, 聽得更多細節.

Avantgarde-HK

London Decca at 2019 HKAV show

HiFever

London Decca 人聲靚, 容易夾phono. 實在超值

澳門客

最重要問題, 係賣幾銀？

Avantgarde-HK

澳門客 發表於 2019-10-3 22:35
最重要問題, 係賣幾銀？

London Decca 唱頭價錢合理,由 五仟幾至二萬幾都有.

Avantgarde-HK

有些人覺得 London Decca 係舊聲, 不夠分析力及速度, 這倒不是啊!  這可能從它的外觀所給人們60年不變的感覺.  而事實上 London Decca 可以說是流行時間最長的唱頭.  點解?  就是它的聲音, 都今天還沒有一點過氣的聲音.  那種充滿活力, 陽光嘅氣色, 有很多現代唱都被比下去.  

Avantgarde-HK

The London Jubilee is individually hand crafted, using coils wound of oxygen-free copper conductors and high flux samarium cobalt magnets. Its cartridge body is machined by computer from a solid block of aluminium, and shaped to hold the motor assembly and the polished, natural grain-oriented, line-contact diamond stylus with absolute precision. This acoustically inert cartridge body contributes to the Jubilee's low-coloration music reproduction.

TECHNICAL SPECIFICATIONS
Stylus: extended line-contact
Frequency range: 20Hz to 40kHz
Output: 5mV
VTF: 1.8g
Weight: 6.7g
Output impedance: 2k ohms
Dynamic compliance: 15x10-6cm/Dyne
Channel separation @ 1kHz: >25dB
Load impedance: 47k ohms

Avantgarde-HK

London Decca Reference + FR66 + TW Raven AC turntable

Avantgarde-HK

London Decca Gold Cartridge
Other cartridges (both moving coil and moving magnet) have styli mounted on the long end of a thin tube (cantilever) which works like a lopsided "see-saw." The short end of the cantilever attaches to either a coil of wire or a magnet. At the fulcrum point, a flexible "rubbery" sleeve functions as a pivot, allowing the stylus/cantilever assembly to respond to the "wiggles" in the LP groove.


Because the front section of the cantilever, which holds the stylus, is much longer than the rear section that is attached to the coil or magnet, a large movement of the stylus is transformed to a smaller movement at the coil or magnet, possibly causing cantilever-design cartridges to sound dynamically compressed and lacking in transient attack. London Decca's engineers advise that this problem with dynamics and transients is compounded by the cantilever's "rubbery" fulcrum point which tends to absorb a significant amount of the stylus-generated motion before it can reach the coil/magnet electrical generator assembly. Also, a smearing of the sound is said to occur, which many folks refer to as "cantilever haze."

The Gold has no long cantilever and no "rubbery" fulcrum point to absorb, dissipate and smear the vital musical energy. Instead, the stylus is attached directly to a magnetically active metal support just a few microns thick (armature) which passes through the center of the main generating coil positioned only about 1 millimeter above the stylus! The stylus motion is not inverted or "transformed" to a smaller value, as in long cantilever designs. Flowing from this immediate positive-direct scanning of the groove is a breathtaking, lifelike quality. The listener tends to feel that the performing artists are actually in the same room, with a startling, palpable presence.

The Gold uses a nude, polished, grain-oriented elliptical stylus, with the same generator and similar housing of the Super Gold. We estimate the Gold cartridge provides 80% to 85% of the state-of-the-art musical realism provided by the Decca Jubilee. Frequency range: 20Hz to 40 kHz.

Avantgarde-HK

Decca唱頭自從1951年推出市場之後, 逼真的中音重播與細節表現, 超大的動態反應以及超高速的瞬變, 一直到今日, 其表現仍然能在各樣唱頭設計之中表現特出, 可見其設計十分完美.