1, design idea
Natural balance, strong and clear low-frequency effect, extremely high resolution, relaxed and natural neutral timbre, fast transient response and accurate reproduction. Sound field is the most important style of lasting high-fidelity music, and it is also the essence of reproducing the true original sound in the basic teaching of acoustics. On the basis of fully considering the audition environment, the design of No.1 photo signature edition aims at fully expressing the essence of Hi-end, and aims at charming facial features, moderate elasticity, soft and juicy tender texture.
2. Unit configuration
The design concept of HI-END is embodied in both appearance and structure of the unit selected for the No.1 photo signature version. The treble and bass of the signature version of photo No.1 were specially customized by the company in SCANSPEAK.
High-pitched unit: The Illuminator series D3004/662000 of ScanSpeak is the top-level high-pitched unit of ScanSpeak, and it is a well-known Danish high-end fever unit in the international audio fever field. ◆ Its wide folding ring and fabric dome diaphragm ensure a flat frequency response higher than 30KHz and have excellent off-axis response. Using SD-2 driving technology, the induced current in the magnetic circuit system can be controlled, the impedance curve can be smoothed, and the symmetrical inductance around the midpoint of the magnetic gap can be provided while reducing the distortion. ◆AirCirc motor technology arranges six NdFeB magnetic poles in a star shape, creating an open magnetic circuit structure, allowing air to flow freely in the back cavity of the treble, making the treble smoother and more natural, and eliminating the reflection and resonance harmful to the traditional magnetic circuit. ?
Mid-bass unit: Illuminator series15wu/4741t00 of Scan Speak, a Danish HiEnd-class fever unit renowned in the international audio fever field, is also selected: ◆ Inheriting the tradition of ScanSpeak, low-loss linear suspension provides cleaner transient response, flexible suspension, linear tension centering support and low-damping voice coil skeleton are combined, and perfect balanced assembly can avoid any signal amplitude. All moving parts (including diaphragm, dust cover, centering bracket and voice coil) adopt flexible suspension, which can vibrate more easily and quickly even at low amplitude. Therefore, the loudspeaker can not only perfectly reproduce the main part of the signal, but also carefully preserve all the small details of the transient. ◆ The basin frame has specially cut decorative edges and mounting holes, which will not increase the manufacturing cost. ◆ The selected composite materials are of good quality and good decoration. The patented asymmetric relief effectively reduces the vibration of the cone and improves the definition. Patented magnetic pole optimizes magnetic flux to reduce distortion, and conical shape can effectively prevent sound wave reflection. ◆ The gaps on both sides of the copper ring help to dissipate heat and minimize distortion. ◆ The voice coil protruding below is for perfect long-stroke linear motion, and the flat wire can improve efficiency and power. ◆ Smooth air outlets at both ends have good heat dissipation and reduce wind noise. ◆ Large NdFeB can provide great driving force. ◆ Cast aluminum basin frame can provide maximum rigidity and improve air circulation. ◆ SD-3 magnetic circuit is adopted, which is the design of short voice coil and long magnetic gap. Not only the copper cap is used, but also the upper magnetic conduction plate with special design shape is used, which not only can obtain uniform magnetic field lines in the magnetic gap, but also can make the magnetic field lines symmetrically smaller at both ends of the magnetic gap.
3. Box design
Exquisite woodworking technology has always been an unparalleled traditional advantage of HP audio; PhotoNo.1signature edition * * * combines acoustic principles and classical craft aesthetics in one furnace, which is the best performance of HP's mastery of technology in audio production. ◆ Photo No.1 signature version, the appearance breaks through the traditional line design and is bold and avant-garde. The use of thick density board as the box body and accurate box body volume design will improve the performance of the unit to the extreme. ◆ Exquisite crack spray painting process is adopted, with beautiful appearance. The side panels are matched with American walnut logs, which are generously and meticulously spliced. The proper line design not only gives you beautiful highlights, but also cooperates with the vibration reduction inside the box to reduce the standing wave inside the box and make the sound more perfect. ◆ The most reasonable distribution position of treble and bass units can accurately restore the' point sound source'. ◆ The shape inside the box is not a simple regular shape. The design of wide front and narrow back, accurate positioning of inverter tube and reasonable arrangement of frequency divider have played a good role in dispersing and reducing the standing wave in the box. ◆ The box is made of carefully adjusted rubber-sprayed cotton, which not only increases the viscosity of the air in the box, but also has a good damping effect on the standing wave of medium and high frequencies.
4. Frequency division network
As a well-known Hi-end manufacturer in China, HP Audio is people-oriented, attaches importance to the cultivation of music by designers, and takes science and technology as its purpose. The frequency divider components of the signature version of photo No.1 are carefully selected, with an error of 65438 0%, and optimized to ensure complete cooperation with the unit. ◆ The high and low frequency units adopt the third-order frequency division design. The frequency division design not only considers the electrical phase, but also the acoustic phase, which provides a strong guarantee for high-power playback and minimizes the acoustic overlap and interference between units. ◆ Every component on the frequency divider is carefully selected, and the sound is carefully adjusted by the computer. The frequency divider adopts high-quality SOLEN polypropylene metallized non-inductive capacitor and thick wire diameter (φ 1.2 mm), oxygen-free copper air-core coil (the coil is made by the factory, which can accurately control the inductance value), and the resistor adopts high-quality metal film resistor (multiple series-parallel resistors are used to obtain high-power resistors). ◆ All parts are welded by scaffolding, and high-quality silver-containing solder is used. In addition, due to the reduction of connecting wires, the signal loss is smaller. ◆ Specially customized advanced heating horn connecting cable is more conducive to improving the resolution of each frequency band. ◆ Two thick pure copper gold-plated American CNC terminals enhance the overall musical sense of the speaker.
Photo No.1 signature version has excellent transient transparent timbre, excellent balance, full and deep low frequency, which can be said to be unparalleled in a 5-inch half-cell system. Rich and charming intermediate frequency, clear and natural, accurate positioning. The low-frequency sense of volume, extension and elasticity is far beyond your imagination of 5 inches and a half units. It will bring you an ultimate beauty.