The Comparison of two types’ Loudspeaker
The CD 《2006 Original Sound Essence》LPCD version in High- Class AV Exhibition Hong Kong,
which is produced by 2006 high-class AV exhibition in Hong Kong, is a limited-version recorded
by the boss of the YUGUO manufacture co.,ltd.called Youwu YI with a LPCD mother-bring
treatment technology. It included 14 kinds, melodious and extremely fantastic music and songs.
The tone quality is good, audibility is strong. And the more precious point is that it offer
to manufacturing company every best mother of song bring edition, finish in a manner to exempt
the copyright royalty.
We put the CD 《2006 Original Sound Essence》LPCD version into two stereo sets and listen, the
Acoustic effect is extremely different with the same sound source, decoder, amplifier and different
Loudspeaker. The sound source-- The Model C-5 CD rotary table of O.A.T, the decoder --The
audio frequency decoder of D-5 of O.A.T, the power-amplifier-- A-7 electron tube and composite
expanding device synthetically of the transistor of O.A.T. But the loudspeaker is different, the first
set use the O.A.T. S-7 bass third units, the second use the ATC-SCM50P loudspeaker.
The C-5 mode CD turn-table transporter use PHILIPS CDpro2M high-class professional
chips. This transporter is the most advanced one type which is produced by PHILIPS
company.. At presenst, the top rotary table in world is using this mode set. Other a great characteristics of Model C-5 CD rotary table of this fund are to adopt the multiple shockproof measure, including wood Quality, colloidal silica, graphite, copper line material, make product this turn round steady degree reach very much high-level. The pressure of the CD also use high-density numeral control ultra heavy-calibre made pure aluminium to make the run of the turn-table more steady. The power part adopts and connects advancedly in parallel and adjusts the circuit of steady voltage, high-quality power supply, guarantee the high fax; The key spare part adopts one grade of products fevered spare parts, for instance black Buddha's warrior attendant, JENSEN cover the electric capacity with oil etc..
The audio frequency decoder of D-5 of O.A.T adopts precision of 24 bits to decode the chip, the special-purpose components and parts of best stereo, supply power independently in simulation and number. Among them imitate and enlarge and adopt the electronic pipeline way partly, make the sound more warm and more sweet, the power adopts the rectification of electron tube, the electric capacity of the membrane strains the wave; The number changes some power and adopts and hinders and connects ultralowly in parallel and adjusts the steady voltage plug inside.
Among them imitate and enlarge and adopt the electronic pipeline way partly, make the sound more warm and more sweet, the power adopts the rectification of electron tube, the electric capacity of the membrane strains the wave; The number changes some power and adopts and hinders and connects ultralowly in parallel and adjusts the steady voltage plug inside. first class power amplification adopts the body of the special-purpose pairs of sex of stereo of high-power to manage finally. Power part adopt, divide into body design, avoid the impact on tone quality of alternating current source, all audio frequency passways of components and parts adopt the top fevered components and parts, such as straining The electric capacity of wave adopts the electric capacity of the advanced membrane, the electric capacity of coupling adopts JENSEN to cover the electric capacity with oil, internal line line in the all machine of Cardus adopted, all input export, connect all plug-in package adopt, import, have oxygen whom copper gild connect the plug-in package. adopt, import, have oxygen whom copper gild connect the plug-in package. The audio amplifier main bodies of Entrance three that O.A.T S-7 falls are by reaching high density board of 30 millimetres to make thick, the outer surface has paved and stuck the thick one, applied paint the mere paint with a brush mutely and through polishing the English walnut log for several times as the other decorations meticulously. The decorations have opened several longitudinal light holes, manifest while sinking really and simple and unsophisticated somewhat beautifully with vigor outside the straight log of audio amplifier both sides, stroke and obey tenderly and smoothly slipperily, the sense of touch is extremely good. The loudspeaker unit part adopts 2904 Danish scan-speak top high pitches, the high-frequency upper limit of this high pitch can reach 40Hz. Bass unit 2.33 unit, ETON of Germany, unit this adopt patented technology Hu honeycomb basin technology, the trends are great, distorted and low, the sound is simple and honest and plump, warm and moving. Frequency division device adopt highest grade have a fever original device, electric capacity, JENSEN of Danish, for instance, cover electric capacity, Cardus line,etc. with oil. ATC --Britain highest grade monitor case now, designer general design philosophy condense until the world had better most at the your middle pitch Entrance. This middle pitch unit is B. Woodman favourite work of a lifetime, the structure is complicated. Hear and packed classically with ATC in fevered friendliness, in order to face the family expenses, ATC packs SCM-50 out, and it is dense to pay attention to middle pitch Tradition no change. Broadcast separately 2006 original sound choice of this two sets of stereo >>LPCD edition CD, appraises from sound such as the guitar, violin, piano, the acoustics is particularly obvious. Select this CD to lie in the reason that is compared, the works and representative that this CD included a lot of difference musical instruments and played, CD makes exquisitely, reduces the acoustics to compare with prominently. The second of this CD is a young woman guitarist of China whose talent overflows sideways Yang snow is not a guitar solo " Gerardo Matos Rodriguez: La Mumparsita 2'39' Xue Fei Yang From EMI Classics". Joaquin Rodrigo and John Williams, two world-class guitar masters, has the greatest esteem to her play skill. La Cumparsita is always played by the band, but Yang Xue does not adapt her for a guitar of solo editions, see her play skill to be skillful only, fingering fall location to be accurate, can send out, it comes out to be real glamour of her in an all-round way passion and dynamic romantic charm of melody. The guitar sound that the audio amplifier of Model O.A.T S-7 pronounces is round, the sympathetic response of the body of case is obvious, the stereoscopic image sense of space is accurate, feel. And ATC-50 guitar shape is a circle little, the body sympathetic response of the case is not so obvious as O.A.T S-7, but the definition is slightly good, it is more accurate to make a reservation, the acoustic field is launched to both ends, upper and lower space senses are not enough. The fourth melody is the violin works, display the difference on the violin in these two kinds of audio amplifier especially. Unless S-7 shape slightly the heavy, unless the getting more outstanding in musical instrument in solo, unless feel the distinct, expressiveness,can good janitor the emotions abundants of performer very. And ATC shape is slightly little, the violins and bands are moderate in proportion, the expression slightly shows stiffly. The fifth Pollini piano performance Chopin, " works 40 of A major great waves dance music are No. 1 ", while broadcasting with S-7, the feel of the piano is distinct, it seems that a grand piano is put before eyes, player's finger touches the sound of key and running-board to hear clearly to the utmost point; And while broadcasting with ATC-50, the piano seems to shrink, the whole audiovideo picture is covered with a layer of cloth, some has fallen by losses in the detail, but the energy of high low frequency is distributed more balancedly in its advantage lies in. The seventh Li Si who RCA band commanded by Stokowski play is special " the Hungarian rhapsody is No. two ", this melody is mainly whole behavior of dynamic range and whole band while appraising the apparatus replay symphony. When S-7 broadcasts, the scale of the whole band well shows, the level of each part, rise one after another, expressiveness, especially cello group, while playing of the bass department, the behaving thoroughly plumply, forcefully of the cello. When ATC-50 broadcasts, the shape of the whole band is very good too, the level is divided Bright. The trends of two sections of audio amplifier are both very good, the band is very calm, not messy at all while playing the climax of arriving. The only difference is that ATC-50 is more calm in the high pitch part (violin group), and S-7 broadcasts the bass part more outstanding. In a word, these two sections of audio amplifier have good behavior, no matter which kind of music form of replay can all be competent, and the Model O.A.T S-7 audio amplifier seems in order to be lower than ATC-50 by 50 prices even more the cost performance is superior.

[ 本帖最后由 zbm 于 2007-8-31 16:20 编辑 ]