Loyd THX Theater

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Loyd THX Theater

JBL4675A System
The system which is approved in America as THX Screen Speaker (JBL4675A)[JBL4508+2226J+2360A+2450J]

Loyd THX Theater System

Japanese

～JBL4675A Speaker System～

Middle & High range

In "2360A" driver "2450J"& bye radial Horne's twin, Horne is square decided directivity Horne, one opening: 795 millimeters, the directivity level: It is 93°The driver types in permissibly: 100 W, the frequency response: 500Hz - 16 kHz, the crossover frequency: 500 Hz.(It installs in Left, Center, Right)("2450J" uses a titanium diaphragm and a neodymium magnetic circuit with 4 inch caliber with the successor of "2245J")


Low range It enters "2226J" in the double drive, the permission: 600 W, the frequency response: 30Hz - 2.5 kHz.(It installs in Left, Center, Right) Super Low range It adds and it enters Super Woofer"JBL TBC 4785A"system permissibly: 800 W, the frequency response: 25Hz - 250 Hz, the maximum sound pressure level: 129 dB, the crossover frequency: 30 Hz of 80Hz-100Hz:.Low cut, the tuning frequency: 35Hz, 83Hz.(It installs in Center) Super Woofer(JBL-TBC4785A) "2225H(38cm) two "for the ultra low area which is installed behind the screen is for the ultra low area of equal to or less than 70 Hz. The low voice with power is 100Hz - about 120 Hz but this ultra low speaker replays a frequency below it. To reinforce the scale sense of the low range at the movie theater of the 70 mm screening, "Super Woofer System" becomes an indispensable condition.

～The comment of the speaker about the audition～ The attractiveness of the large-sized speaker system of JBL4675A[JBL4508+2226J+2360A+2450J] is different from being home-use completely and even if it is replaying at the small volume, the reality when the sound stretches roughly at the time is excellent outstandingly. The mezzo-soprano is forceful in the band balance of which the frequency band is wide and it is dynamic and is natural, the thickness is in the vocal look, it is rich and is charming. The reaction of the amplifier, too, is sensitive and the words are clear and the effect sound is reality actually. ～About JBL～ Cinematics Academy of Science is Dolby As the speaker system that the sound system does the becoming of the range which is wide, the high-quality-ization by it can be supported, in the sound system of " Samuel Goldwyn Theater ( popular name academy Theater ) ", it is JBL It introduced a component. JBL is THX engaged in the development of the speaker system for the movie theater actively from the Talkie movie pioneer days The first time and its clearing the condition to be severe which depends on THX at Theater, too, in the world. THX As the approval speaker system manufacturer, it is always heading the world of the movie sound. It makes JBL firm ones of the status in a wide range of markets such as being professional, being home-use, and then the car stereo and in the introduction results to the movie theater, too, it is of the whole world about 75 %, THX As for extending to Theater, it is of the whole world about It is proud of 85 % of high share. Also, it makes the PA speaker where the entry / the high-quality sound are looked for regular about the rock concert that the jumboizing continues and the worldwide event, too, and it is used for a lot of systems. ～The History of Theater Speaker～ Warner brothers in 1927 were Al Johnson leading actor, and created world first Talkie movie, various speakers were manufactured until today since the jazz singer. The frequency of the speaker in the past was a band more to about 8000 Hz with 100 Hz, the higher one in the lower one. As for the new sound systems such as THX, remarkably, the frequency is improving compared with the Talkie sound system in the past. Because to have been created before by the hold touch in high area to suppress distortion In the big space like the movie theater, the high area attenuation was remarkable and the replay of delicate high area was impossible. At present, that the frequency of Theater speaker is a wide range becomes indispensable. James B Lansing of the JBL founder created a loudspeaker in the stretched wide range in the range for the consumer from Theater speaker but the sound speaker which combined 2226J of woofers which JBL created and 2450 J of driver is a suitable excellent speaker for Theater in the new generation. The reality when the sound stretches roughly is very excellent even if the attractiveness of the large-sized speaker listens at the small volume and afraid of it to the sound effect of the movie. ～Surround System～ SP System"JBLJ216ProMK2"&"JBL8330", the permission entry: 100 W, the frequency response: 40Hz - 20 kHz (It installs in back boards Left, Right). As for the recent processor, the excellent product to have supported high end home theater building is sold and the audio format of the various kinds is an appearance, "Dollby Digital DTS", "DTS-ES" and also "Dollby Digital EX" and so on in recent years. The spatial representation power, the one which aims at the deciding improvement have an image more realistically more at it, being vivid. "JBL8330" is 3WAY bus Lev type which used a 2.5 cm tweeter for the 20 cm woofer, the mid range of 13 cm, the high-pitched area for the low range and is the one which is actually used at the movie theater. The image is in the condition to have installed in the wall and the right is 2WAY bus Lev type of the dome type of 2.5 cm for the corn type of 16.5 cm, the high-pitched area for the "JBL216ProMK2" low range. The sound pressure level of the screen channel and the surround channel is equally standardized by THX Theater. ■ Dolby（Dolby Stereo）　・The acoustic system which Dolby institute developed. ・The system of the stereo recording and the replay which reduces noise by the analog form. ・ The noise reduction ( the effect to make reduce the optical particle noise which occurs in optical print recycling to ) and the standard of the surround replay by 4ch ( the channel ) ・It makes noise small relatively by raising the record level of the noise occurrence band beforehand, and lowering a level only by the raising part and replaying it in replay in recording. ・The 4ch replay of the center, the right, the left and the surround ( around the seat ) ・It realizes 4ch replay by synthesizing the source of 4ch to 2ch in recording and doing data processing in replay. ■ Dolby-SR（SR=Spectral Recording）・ The acoustic system which Dolby institute developed. ・ It replays 4ch like the Dolby stereo method. ・ The noise reduction feature is strengthened from the Dolby stereo method and also realizes the expansion of the dynamic range. ■ Dolby-Digital（SRD=Spectral Recording Digital）・ The acoustic system which Dolby institute developed ・ To do the separative each digital clear channel the digital clear sound and are excellent about which is a characteristic. ・ The 5.1ch replay of 5ch ( the center, the right, the left and surround either side 2ch ) + 0.1ch ( the special sub woofer of the super low sound ) ( ※ Because the replay band is narrow, it counts a sub woofer with 0.1ch. ) ・ The audio compression is AC-3 method ( The compression ratio 12:1 ). ・ The dynamic range: Equal to or more than 90 dB ■ Dolby Digital surround EX（SRD-EX）・ The acoustic system which Dolby institute and Lukas film developed jointly. ・ The 6.1ch replay which inflicted back surround ( the rear center ) on 5.1ch of the Dolby Digital. ・ It generates back surround sound in adding special surround adapter unit (SA-10) to the system of the Dolby Digital. ・ The film has the Dolby Digital and the compatibility and at the theater of Dolby Digital system compatible, they replay in 5.1ch. ■ DTS　（Digital Theater Sound ) ・The acoustic system of the digital Theater systems Inc. development ・The 5.1ch replay of 5ch ( the center, the right, the left and surround either side 2ch ) + 0.1ch ( the special sub woofer of the super low sound ) ・It makes synchronize with the time code which is recorded to the film and it replays sound from the CD-ROM. ・It is possible to introduce a system cheaplier than the other digital method. ・The audio compression is APT-X100 method ( The compression ratio 4:1 ). ・The dynamic range is 95db. ■ DTS-ES ・The acoustic system of the digital Theater systems Inc. development ・The 6.1ch replay which inflicted a surround center ( the rear center ) on 5.1ch of DTS 5ch ( the center, right, left and surround either side 2 channel ) + 0.1ch ( the special sub woofer of the super low sound ) ・There are DTS and a compatibility and at the theater of DTS compatible, they replay in 5.1ch. ・It generates sound in the surround center in the special adapter unit. ■ SDDS　（Sony Dynamic Digital Sound）・The acoustic system which Sony and the Sony pictures entertainment developed. ・ A maximum of 7.1 ch replays which inflicted front 2ch ( the left and the right ) on 5ch ( the center, right, left and surround either side 2 channel ) + 0.1ch ( the special sub woofer of the super low sound ) are possible. ・The audio compression is the ATRAC type which is the same as the MD ( The compression ratio 5:1 ). ・The dynamic range is 90 dB. THX is the system which was contrived to replay a sound in the theater faithfully in the standard specifications at the movie theater of the Lucas film Inc. It admits THX mark at the theater which cleared this standard. It does the design, the building of a theater to satisfy a standard, and to get approval of THX, it gets an inspection and it is authorized. The inspection of the theater is regularly done by TAP of the screening management program after authorization, too. The sound space of the high quality is basic and is controlling words in the reverberation time in the hall and so on, too, so as not to provide that the noise level is equal to or less than 30 NC clear and to insulate against sound, the flutter echo generate noise from the lobby and the projection room and so on fully. The screen speaker does a drive by the multi amplifier method by the THX and electronics crossover and is using the amplifier which is special respectively for the woofer (low ) with Horne ( for high area ). This is to make distortion inside low and in high area little. Incidentally, a screen speaker and a sub woofer are installed in the baffle board which is recommended by THX and a surround speaker is installed to use often to pile up the direction of the diffusion and to tuck rarely an audience in the directionality. THX is providing standard specifications for a wide range of ones about the movie from the dubbing stage to the laserdisc.


～Multi Amplifier System～ P-500L (Power Amplifier) For high-pitched area the continuation average output: 270W/ch, the frequency response: 20Hz-20.000Hz,all the higher harmonic warp percentage: 0.01 %. P-800 (Power Amplifier) The output stage for low range the continuation average output: 400W/ch, the frequency response: 20Hz - 20.000 Hz, all the higher harmonic warp percentage: 0.01 %. The bridge composition of two sets of power units, full balance amplification. P-300V (Power Amplifier) It outputs a bridge connection, a continuation average in super woofer: 560 W, the frequency response: 20Hz - 20.000 Hz, all the higher harmonic warp percentage: 0.01 %. P-500L (Power Amplifier) For center (The bridge connection, the continuation average output: 370W/ch, the frequency response: 20Hz - 20.000Hz, all the higher harmonic warp percentage: 0.01 %) P-11 (Power Amplifier) For rear side & back board surround (The continuation average output: 120W/ch, the frequency response: 20Hz - 20.000Hz, all the higher harmonic warp percentage:0.01 %) C-280L (Precision Stereo Preamplifier) The frequency response: 1.0Hz-350.000 Hz, all the higher harmonic warp percentage:0.005%. F-15L Electronic frequency Dividing Network The frequency response:1.0Hz-350.000Hz,+0, the dB, all the higher harmonic warp percentage:0.003 %,the crossover frequency: 500 Hz of 70Hz.（3Way Multi System）～The comment of the amp about the audition～ Malti system has become more expensive than the LC Net work method. As for the LC Net work method, the frequency changes the impedance of the speaker roughly. It changes cross exaggerated frequency, cross point attenuation, hill characteristic together and there is an influence in the timbre. The resistance ingredient of the attenuation receptacle and so on makes the braking of a speaker dull and aggravates especially low dumping.Because it makes a multi with the high quality channel divider and the power amplifier, a sound with the high grade which the speaker has is gotten and the sound feelings which it draws by it become possible. As the merit, the high quality transparent sound and the sound spread. The depth sense of the sound increases, the music volume of information increases and the expressive power of the music becomes rich. The amplifier of Accuphase reacts keenly obediently to the big program of the dynamic range, too, the timbre is flexible and the development is rich well. It is the excellent amplifier which drives and can use a speaker surely robustly powerfully. ～Player System～ The software of the LD hid a shadow completely and ready, it consisted of the merit of the respect of price, the user-friendliness and so on with the times of the DVD software with the technical innovation. The LD had the troublesomeness to change with the B surface if about 60 minutes of one sides, the A surface end. There was a nice jacket as it makes a picture, too. There was that liner notes and so on were richly enriched, too. The LD becomes a discontinuance, the type of the DVD software, too, increases and the inexpensive version, too, is the one which wants to expect that un- sold software in the LD is released because it is sold. LD-W1 Four Continuation Replays Player LD-X1 Full Digital Signal Processing Reference Player HLD-XO(MUSE/NTSC Reference Player) The noise cancellation, the sound signal, too, make follow the master clock of the image with the digital memory of three-dimensional Y/C separation, YNR, VNR built-in, 16Mbit. It excludes a jitter ingredient. The reference player of the image and the music which replays information faithfully in the high-precision about the change of a little gradation, too, by 670 nm shortwave length laser picking-up built-in which made a conventional LD and Hi-VisionLD that it was possible to replay it. DV-S10A Progreship Scan DVD Player HR-W1 (Hi-Vision Video Recorder) NV-100HD (Hi-Fi(HD) Video Recorder) ～Amplifier Rack & Appreciation Seat～ The Amplifier Rack is a special item to order. There is a software safekeeping room of the video behind the appreciation seat.

～Screen System～ With the sound film screen (the hole screen) which is made at Stewart, it is the electric volume raising type 3.4 type of 120 inches. In the interval in the hole, it is 3/12"(4.76mm), being square. Because hole area is made 8.5 %, a hole diameter is made a minimum diameter in twice the screen film thickness and the film thickness is thin, the penetration efficiency of the sound is good. There is a merit of the image quality improvement because the hole diameter is smaller. The distance with getting out of sight hall is 3.3 m and being the same as the throw of the projector, there is not hinderance in usual appreciation at all. When roughly dividing the material of the screen, the being of it such as the white mat, the beading, Pearl is done, but it is particular about the feel of a material of the film and it uses a snow mat. ( Theater room is full shading designs and constructions ). As for the screen at Stewart, the penetration to the sound, too, is the screen which is excellent with the image with high image feel of a material which has massive impression, being good. It doesn't use a screen and in appreciation only of the music, it winches up a screen but screen itself is surprise though there is not a curling ( the volume habit ) in spite of the structure which has been fished with the wire in the both edges because it is light thin. The speaker which was installed on either side of the screen is "JBL 4344".Mainly, it uses when listening to the jazz.
	Behind the screen, black curtain.
～Projector System～ Sony"Three type multi scan projectors " "Super Data VPH-1252Q" It is a level in-line method with three lenses. In the 120 inch projection, the color method is NTSC, PAL, SACOM, NTSCM4.43. In the automatic switching, the cathode-ray tube is a new 7 type high-intensity coloring liquid cold pipe. It is 700 lumina ( the white peak ) of optical output with 12/140 mm of lens highly efficient HACC F1.. With the resolution 700TV book, the 1500*1200 dot, the RGB entry level frequency are 15kHz - 1.5 kHz, vertical frequency 38Hz - 150 Hz. There are three types when dividing the projector of the home theater roughly, they demand high-precision image quality with the big screen, when considering a melody and a color reproduction and so on, there is not one with the excellence of three types and it thinks that it is the most excellent about the replay of the cinema film. Only, the advanced technique is necessary for the handling and the adjustment to project the image such as the convergence which adjusts RGB to understand takes considerable time but the quality of three types includes the one of the fine quality which isn't looked for in the others. Sony and Mitsubishi shed in the withdrawal from three type markets and had become only BARCO. The lead character is moving to liquid crystal and DLP ( Digital Light Processing, the Texas installment Inc. develop ). As for liquid crystal, the handling is very simple only in the screen size and the focus adjustment. The price, too, is cheap, but the DLP projector of the rival is used at the digital cinema building and so on and as for featuring, the use efficiency of the smooth image, the light is high and has a contrast, being good and so on. But, it is still expensive.
Interface Board IFB-1300
～Decorder/TU-AHD100N～ The function and the Hi-Vision broadcasting to put a scanning line and to measure the duple density of the image can be received among the scanning lines. ,There is input/output of Hi-Vision and the LD. The replay of the software which there there was a feature for this equipment, too, to let out reality in and a cinema ( the atmosphere of the movie theater ), a hall ( the reality in the concert hall ), a stadium ( the power sense that there is an expanse ), Dolby mark were stored in and so on Also, it is automatically changed by the A mode ( the sound like the FM broadcasting ) B mode ( high-quality like the CD ) broadcasting and in the BS sound, it is the excellent one whose color control the movement of the caption, and the bright of the image, are possible.

タイトル Contents... Loyd THX Theater ～Loyd THX Theater System～

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