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AV System summary

HAL

hardware review of home theater and self-made devices

AV System summary

of Monolith Theater

Introduction
Overview
Features
Theater Room
System Diagram
System setting and comments
Picture and sound impression

Special Source Device for Blu-ray and Audio
Back of the Sound Screen
THX Certified Professional
JDPC DHT specialist Level2
 To be Continued

updated 2011.08.01

monolith-theater_frontview

Front view of Monolith Theater.  

Introduction

This is a renewal site of “monolith-theater“. I have arrived at this environments that specializes to watch movies, through experience for 30 years of pure-audio and 20 years of hometheater. Recently, defective operation has happened frequently with my consumer audio devices, while overhauling over many years, I tried to replace the system with professional devices. The site was started up as a chronicle because there were various surprises and discoveries in this process as an amateur.
“Get impressed image and sound more than commercial theater!.”Thanks for your visit. (monolith-theater.net)
From Japan.

Overview

The capacity of theater room ,what is originally designed only for a “hometheater” is 250-cubic meter. The interception, absorption and modulation of the sound are elaborately considered there.It has isolated ground and 200V power line,signal line with wiring through hidden floor pit. Screen is a voice penetration type of 200 inches. and front projector is fixed pixel type of ILA. Acoustical instruments are mainly for professional use and tuned by FFT software, “Smaart”. Moreover, wood and goldsmith works of hobby, self-made PC are equipped.Devices are arranged not to come into sight excluding the screen.

Features

  1. Special theater room of original design: 250 cubic met
  2. ers in volume, floor space 50 square meters, 5 meters in height, 30 seats maximum accommodation number in the first floor and 4 in the second (see figure below).
  3. 200-inch(4.7×2.7m,1.78:1),Studiotek 130G3, Microperf X2 THX-Ultra sound screen by Stewart.
  4. High-definition(1080p) front projector by Victor DLA-HD750.
  5. JBL Professional cinema speakers; three way “ScreenArray” 3632-T (Tri-amplified operation), 4645C, 8340A.
  6. Multi amplifier composition with AMCRON (CROWN in U.S.)
  7. dbx4800, equalization & loudspeaker management system with bandpass filters, crossover and parametric EQ by “HiQnet” (Harman International) networking and control.
  8. Sound tuning with “Smaart” by EAW : audio system measurement, acoustic analysis FFT realtime tool, provides to assess the performance of an entire sound system, a specific part of a system, or a single system component.
  9. Cooperation of Lynx AURORA16 as AD/DA front-end processor with dbx4800 and analog signal devices.
  10. Control with clock master “MUTEC iClock” for digital devices.
  11. Blu-ray reproduction player “PIONEER BDP-LX91″and AV preamp”DENON AVP-A1HD” for consumers.
  12. Software decode full high-definition image and multi- channel surround sound by self-made PC.
  13. Clean power supply step-down transformer from exclusive use 200 volt.
  14. Self made devices: auditorium sofa, power and analog line, 19-inch rack, amplifier rack, acoustic panel and PC etc.
  15. Machines were bought by the mail order, and set up for myself.


Theater Room

architect_sideview_2010

architect_floorview_2010

 

jbl_theaterroom4jbl_theaterroom3jbl_theaterroom1jbl_theaterroom2
Panoramic view of Monolith Theater
jbl_theaterroom5jbl_logo_plate21
JBL certified logo plate


System Diagram

 

Old Version @2008

Latest Version @2010screen_array20100605

2ch Computer Audio @dual wire AES 192kHzpcaudio2ch


System setting and comments

Summary of setting and  impression of devices
An individual article is explained in this website. Please click the link of device.


  category device manufacturer model usage setting and comments by hal@Monolith-Theater.net  
  Imaging device front projector Victor DLA-HD100 DLA-HD750 upside-down installation by self-made device default setting,  
  sound screen Stewart Studiotek 130 G3,AT2frame microperfX2 wire hung 200inch(1.78:1) remote control 5-meter adjacent attention possible.  
  Sound device speaker JBL Professional Screen Array 3632T(x3) L,C,R/behind screen 3way multi-drive system for professional use of screen cinema. Control hardware and software is dbx DriveRack4800 and HiQnet System Architect (see below) Tuning is not so easy but it has one of the best high-end sound quality Ive ever heard  
  4645C(x2) sub woofer /behind screen 46cm unit for cinema use  
  8340A(x6) surround side/side wall 2 way surround speaker of professional use for theater  
  8340A(x2)
8340A(x2)
sorround back
sorround height
same as above  
  power amplifier AMCRON IT4000 Subwoofer drive(stereo) professional device with built-in DSP and ethernet control  
  CTs1200(x3) 3632T(L,C,R)/MF,HF(stereo) In US, CROWN professional Com-Tech(CTs) series. CTs series is professional equipments. It has high power-density. 8-ohm Dual:600W(CTs1200) ,1250W(Cts3000).and 8-ohm Bridge 3000W(Cts3000)..Damping factor is over 3000.Total harmonic distortion(TDH) at full-rated power, from20Hz-20kHz is under0.1%(CTs1200) and 0.35%(CTs3000).Units driving potential and sound quality is excellent .  
  CTs1200 4312(surround back)(stereo)  
  CTs3000(x3) 3632T(L,C,R)/ LF(bridge mono)  
  CTs3000 8340A(stereo para)  
  AD/DA converter Lynx Studio Technology AURORA16 with LT-FW expansion interface simultaneous 16ch AD/DA front-end Processor designed for recording and mastering studio use.16ch analogue and 24bit AES3/EBU digital I/O,Clock setting up to 192kHz, mixing/routing with external PC control available by Lynx driver. LT-FW is designed to be used with IEEE-1394a FireWire signals. ASIO and multi-channel interleaved audio (7.1ch surround sound) available.  
  equalization and loudspeaker management system dbx professional products Drive Rack4800(x2) digital crossover and room equalizer 4 inputs and 8 outputs with both analog and AES/EBU XLR connectivity. Signal routing, parametric EQ and bandpass filters, crossover (Bessel, Butterworth, Linkwitz-Riley) available @96kHz. Control software is HiQnet System Architect by Harman international.This software can simultaneously control AMCRON power via ethernet.(see below)  
  HiQnet System Architect Harman international ver2.1 control software with Windows PC. under control devices are AMCRON power amplifier, dbx DriveRack4800. Recommended venue files are in use for JBL Screen Array Cinema speakers., able to set and tune their crossover and bandpath filters of Drive Rack4800.(see above)  
  master clock MUTEC and
Rubidium Custom
iClock sync by 10MHz
Oscillator
digital sync for Lynx,dbx and HTPC accuracy<0.1ppm,jitter<1ppm,Synchronization and generation of 36 different Word Clocks rates at the same time. DSD,DXD,SACD mastering,10MHz Rubidium clock input available.  
 

AV reciever

DENON
Integra
selector

AVP-A1HD
DHC-80.1
order-made
decoder


11ch,2:1 switcher

HDMI inputs and 12XLR balanced outputs(L,C,R, SideA,SideB(RandL) ,Surround back(RandL),SW1,SW2,SW3. Height channel for Dolby Prologic IIz in Integra  
  FFT-based sound system measurement, optimization software

(EAW)

rational acoustics

SmaartV6,V7 optimization of crossover in 3way screen channel (JBL3632T),parametric EQ for side speakers and total tuning room acoustics professional tools for optimizing the interaction between sound system and the space. Its very difficult to tune Screen Array System by hearing only. Two-channel RTA,Single channel spectrograph. Frequency response magnitude and coherence measurement available.  
  source device blu-ray disc player PIONEER BDP-LX80 BDP-LX91 source for HDMI system software update available via internet. Separate output of picture and sound signal on bitstream over double HDMI.  
  category device manufacturer model usage setting and comments by hal@Monolith-Theater.net  

jbl_3632t_41
Sound measurement by Smaart with Earthworks M30
and tunig by HiQnet SystemArchitect.
I adjust it in accordance with x-curve for movie and flat response for audio.

19inchrackver2_007
DIY-handmade 19 inch racking system Ver1, Ver2

Picture and sound impression

Picture quality

All image qualities are excellent by the impression of tens of blu-ray up to now. The image seen with DLA-HD100 looks more exact than the film. Because of the high resolution and contrast ratio, depth of scene is often real.

Sound quality

Screen Array system create an elegant, delicate, listenable and real voice. The preconception of the professional equipment that secure stable operation, sound volume and the head-room changed completely.

Comparison with consumer products

It might be difficult to surpass this quality by combination of high-end audio devices for consumers, judging from my experiences of household machines as pure -audio. However, the tuning and optimization of professional devices with multi- amp system is extremely difficult. For example, it takes over three days by FFT analyzer “Smaart”, until constant flat characteristic data of the response in frequency is obtained including room acoustic equalizing.

Impression of Screen Array

The dialog seems as if to see the movement of the lip and the throat. It is real to make it think there is an actor in the back of the screen. Each musical instruments are able to be listened lucid separating one by one in the orchestra. Transient characteristic quality such as brass and woodwind instruments is excellent. Response of low frequency is very tight. I think that it is a synergy effect of amplifiers with high density power and damping factor, natural digital devices without coloration, unique mid-range double unit with horn and double woofer of 3632T. The horn in high frequency band is average. It is a preamp of DENON that has colored character most in this system. On the other hand, the reproduction as DAW system via firewire and AES3 digital signals by PC is accurate.

Surround sound

In some movies,I can feel the orchestra instruments how like exists and sings. I can hear the orchestra pit in the theater under of screen. Musical instruments queue up from near to far and right to left.When equipped 8 surround speakers, the surround is so natural that the sound-image moves from center to outside the screen and side to back smoothly. The density of the sound that develops with overhead is high.

Conclusion

I have not experienced such the sense absorbed in stories without feeling the sign of devices. Only the movie exists there.

Special Source Device for Blu-ray and Audio —DIY HTPC—

audiopc064
Universal Digital Transport UDT2010

Features:
● Hand-made rigid aluminum 1U rack mount case.
● Ellegant and luxury aluminum hair line finish with gold-plated bolts.
● Simple front design with signal LEDs and midship mounted optical drive.
● Low system noise by direct CPU cooling with large low-speed fan and 150W DC drive.
● Fast data access by SSD Striping.
● AES 16ch studio quality digital audio interface powered by Lynx Studio Technology and HD audio bitstreaming over HDMI with FullHD 1080p via Intel Corei5 661
●Flexible signal asign and device control of sound system by ”System Architect” on ethernet.

audiopc074audiopc060audiopc062audiopc066audiopc050audiopc052audiopc080audiopc028

 

 

Back of the Sound Screen

jbl_screen_array_3632t
The amplifier and speaker group set up back of the screen.Racking system of speakers and amplifire  is DIY-handmade.

jbl_3632t_21
jbl_3632t_680
Sound tunig panels back of the screen

 

 THX Certified Professional

 

thx-certified-professional-ht11

This Certificate Is Awarded To Me. THX Home Theater Education Program Home Theater 1
Conducted December 9, 2010 Tokyo, Japan. John B. Dahl - Director, Education, THX Ltd.

thx-certified-professional-ht16 
The qualification was acquired in a personal interest,
engaged in none of related business.

JDPC DHT specialist Level2

jdpc_plate

 I am certificated as digital home theater(DHT) specialist by digital home theater promotion committe(JDPC)
of Japan Audio Society(JAS),May11,2011.

 To be Continued

Target of yearning …..  “Mehr Licht!”

screen-array

Leonard H. Goldenson Theatre. Academy of Television Arts & Sciences Plaza.
The Leonard H. Goldenson Theatre is equipped to project 16, 35 and 70mm film as well as video,
delivering high-end audio through an advanced JBL sound system.