『It is often said that a creator gives life to the objects he designs, with VOCE GRANDE, there was not only a soul in it, but it was at the same time able to give life to the unhelpable.』
一款自然聲響揚聲器的設計過程,主要奠基於科學、科技、經常熬費心力,有時也得招集大家共謀對策,VOCE GRANDE 也經歷如此程序。
除卻先進科技與信手捻來的靈光乍現,這是第一次有物件如此地觸及我心、深及如此。我的研究引領出超眾的設計,但感動的原因卻不是只因其外在的美感觸動,而是源於研發本身… 賦予了這件木料與金屬雕塑全然的生命。基於根本的音響聲學法則,這決定了 VOCE GRANDE 的大小尺比與其獨特型式;沒有遺留任何再需修正的空間,一切均以我個人的直覺、經驗,以及感染自父親對美的不懈追求、所貫穿一生的卓然品味,VOCE GRANDE 就這樣的定案完成。
創造出能夠傳遞感動的作品,即傳統上令人珍愛的 JMR 揚聲器,如上所述,已獲得完整的意義說明。從一開始的測試聆聽,VOCE GRANDE 就令我感動。這份觸動,對一直以來想要走入音樂之心的頑強堅持,於我而言有著極大的意義。
承繼自眾多傑出的 JMR 揚聲器,VOCE GRANDE 通過其謙遜、通透、以及即刻的直覺聽感”揚聲器消失了”,真正地尊重音樂、只為音樂留下空間。對於樂器演奏之音程運行、表情綻放所給予的嚴謹尊重,使得 VOCE GRANDE 在聽眾與演出者之間,建立了緊密且非常堅實的鏈結。 環繞 VOCE GRANDE,它創造出一無與倫比、真實無欺的聲場架構,沒有模棱兩可、渲染矯情、過分的張揚或討好。
對於歷任世代、努力不懈賦予 JMR 製品生命力的工作者,VOCE GRANDE 向您致敬。
Highlights
Passive speaker, two-way speaker.
Stand not removable because it integrates the passive crossover.
Device eliminating the phenomenon of solidar transmission of vibratory energy thanks to the use of materials of different densities (MDF-Aluminium) and interconnected thanks to the use of a specific polymer and a polyurethane glue with the particularity of preserving a certain flexibility in order to better reduce vibrations from the enclosure with even greater efficiency.
Complete mechanical decoupling of the base from the enclosure, allowing the use of Teflon skids as an interface with the ground (no spikes).
Proprietary loading principle composed with 4 progressive damping cavities leading to a frontal laminar vent, this loading does not use any damping material, only some walls are covered with viscoelastic compound or bitumen. This loading offers a very homogeneous and fast group delay time providing a very articulate and fast low frequency.
Medium/tweeter AST (aerostriction) 120mm long diaphragm (twice longer than the one used for ABSCISSE Jubilé and ORFEO Jubilé) allowing a low cut-off frequency in 12db/octave at 1.2khz (this transducer alone covers the entire ear sensitivity zone up to 30khz). This diaphragm is made of an extremely lightweight avionics aluminum film on a silicone folded substrate surrounded by two neodymium bars with very strong magnetic fields, Unlike a conventional ribbon that pushes the air in front of it, the AST pinches the air between its folds, it is thus much faster and above all much more resistant to damage.. This high-performance transducer has outstanding dynamic characteristics and an extremely low distortion rate. The lack of resonance specific to the materials used gives this exceptional wide range tweeter outstanding transparency, harmonic gradation and transient qualities.
180mm bass driver, cone made up of 7 layers of carbon and peek (polyetheretheretherketone), its surface is then subjected to a specific plasma treatment giving it a rough aspect, anti-vortex ogive turned in the aluminium mass, 38mm voice coil on a fiberglass support (light and rigid) with plasma treatment for better thermal dispersion. Core with a copper ring to reduce the distortion rate and linearize the impedance of the driver. Ventilated Speeder with progressive profile, aluminium basket, double ferrite magnet with slow magnetization. This bass driver has a very high linear displacement and a very high power handling, giving it a fast bass, going down very deep in frequency and always with a very articulate sound and a strong feeling of impact.
Two-way crossover 12db/octave centered at 1.2khz using very high quality passive components (silver armature and HP1132 silver/copper cable termination, large width deoxygenated pure copper strip air coil; specific wound resistances covered with a copper tube acting as heat disipator and Faraday cage connected to the system ground). Crossover is handmade on an anti-vibration base and placed outside any electromagnetic field. Sorted and matched components with a tolerance of 1%. Directly soldered components and fully internal cable connection using our HP1132 silver/copper cable, whose cross-section has been doubled.
Electroacoustic performances
Nominal impedance:8ohms (minimum 6,8 ohms)
Efficiency:88,5db/W/m 2.83V
Filter:Second order crossover section 12db/Octave centered at 1200hz
Distorsion:below 2% from 200hz to 18khz at 85db
Bandwidth:38hz to 30khz (35hz at -6db)
Power handling:40 to 180W
Connexion:mono wire + ground terminal for crossover components
Dimensions (with stand):H 110cm L 28cm P 39cm
Weight:32kg
Finish:Pearly grey and black satin lacquer (more finishing available for aluminum parts on demand)
音響論壇 年度最佳器材 Best Value of the Year [2021.12.29] 法國權威古典音樂刊物 DiAPASON 於 2020初春,授予 JMR VOCE Grande 金音叉大獎 DiAPASON D’OR! 法國古典音樂雜誌 CLASSICA,授予 JMR VOCE Grande 最佳推薦獎 CHOC!