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Joined: Oct 2005
Posts: 435
Paranoid android
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Paranoid android
Joined: Oct 2005
Posts: 435 |
I finally have five DSP5200s paired with an SW5500, running off a G68D. I'm curious, what level on the speakers does it need to be set at to equal THX level? Also, anyone know what this would equate to in decibels? Do people generally play louder or softer? I mainly watch action movies, but the wife and kids sometimes get a look in.
Also, not sure why, but noticed if I use the M remote to turn the volume up, often the G68 will be mismatched from the speakers, ie. G68= 72, speakers = 67. Is this normal and if not, anyone know a fix?
Last edited by Chris1971; 2009-02-22 08:03.
3x DSP5200 L, R and C (all vertical), 4x Triad Silver in-wall surrounds and 6x Triad Silver in-ceiling ATMOS speakers, Triad Silver subwoofer, Denon AVR-X8500H, JVC DLA-7500 4K projector and Screen Research 120" AT 2.35:1 screen.
Apple TV 4K and Oppo UDP-203 Blu-ray player.
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Joined: Apr 2004
Posts: 12,733 Likes: 88
Don't Panic!
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Don't Panic!
Joined: Apr 2004
Posts: 12,733 Likes: 88 |
87 is reference level IF you have calibrated the system to 75dB using the G68's in-build test tones.
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Joined: May 2004
Posts: 595 Likes: 1
Paranoid android
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Paranoid android
Joined: May 2004
Posts: 595 Likes: 1 |
Chris
The two levels should be the same. I had this mismatch which was corrected by cold booting (unplugging/plugging) my G68.
Rod
818v3, QNAP HS-453DX, Roon, 7200SE, ARCAM AVR380, REL B2, Panasonic BD 80, LG OLED, SBox Transporter, iPad, F80. Shunyata Delta NR power cables.
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Joined: Jan 2004
Posts: 2,473 Likes: 18
Senior Shouting Officer
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Senior Shouting Officer
Joined: Jan 2004
Posts: 2,473 Likes: 18 |
The 0 dB reference level represents an average 85 dB SPL and a maximum 105 dB SPL. The LFE (Low Frequency Effects) channel used by AC3 (Dolby Digital) and DTS is +10 dB higher. This means that the maximum output for bass peaks is 115 dB SPL. The purpose of the +10 dB gain for the LFE channel is to increase the dynamic range of bass events such as explosions, crashes, punches, and rumbles. This means when the volume is set to 0 dB that the subwoofer could be asked to produce an output of 115 dB SPL. Such loud bass levels places a heavy resource burden and requires multiple high-end subwoofers to produce it accurately. Fortunately THX processors have a feature called the Bass Peak Limiter which compresses peak levels in an attempt to reduce distortion and prevent speaker damage.
DSP8000SE, DSP7200SEHC, DSP5200SE sides, DSP7200SE rears, 861v8, 210, Sim2 Ultranero 4, Stewart Cinecurve 2.35:1, XEIT CM-5E Anamorphic lens, Dune HD Duo Cinema 8K and Wireworld Platinum 48G HDMI -> UHD722 -> Shunyata Omega Ethernet. Shunyata/Furutech power-cables/filters. SR Master Fuse@861v8. Uptone Etherregen with 10MHz OCXO clock.
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Joined: Dec 2005
Posts: 202
Hitchhiker
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Hitchhiker
Joined: Dec 2005
Posts: 202 |
87 is reference level IF you have calibrated the system to 75dB using the G68's in-build test tones. thanks for that vk ( i thought 75 on volume = 75db stoopid me ) . Do you watch your'e films at 87 neil
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Joined: Jun 2006
Posts: 1,653 Likes: 1
Working on the ultimate question
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Working on the ultimate question
Joined: Jun 2006
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Joined: Sep 2003
Posts: 131
Hitchhiker
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Hitchhiker
Joined: Sep 2003
Posts: 131 |
sounds like it's out of sync with more than one controller. put the system into standby and press Clear on the MSR.
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Joined: Apr 2004
Posts: 12,733 Likes: 88
Don't Panic!
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Don't Panic!
Joined: Apr 2004
Posts: 12,733 Likes: 88 |
Do you watch your'e films at 87 Hell no. Far too loud!
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