I set the SPL meter to "slow" and "c weighted". Dynamic eq is an enhancement. Individual tolerance of loudness levels varies quite a bit from one person to the next, and is also age-related, but many years of careful testing of large numbers of people with normal hearing have yielded a generally agreed upon set of subjective standards that quantify loudness levels for the majority of listeners. per your original question. Just a correction. If someone says they can't hear the dialog, just raise the center channel volume by 3 to 5 dB rather than increasing the loudness of the entire system. Looking for me, just google my username. After running audyssey i adjusted the distances manually with a measuring tape and used a vlike vl6708 slp meter to adjust db levels at 0.0db max volume aiming for 75db reference level to each channel. For a better experience, please enable JavaScript in your browser before proceeding. I went into "manual setup" for the speakers on my Denon X3300W and set the volume to "0" with pink noise running. The one thing I am running into issue with is my subs. Any particular sample value (or the average) is represented by negative numbers; ie, the 'distance', if you will, below 0 dB. Reference level is dependant on how far you sit from the speakers as well. Should I do the Onkyo Audyessy calibration and the SPL meter calibration? I set both the L/R channels to +2.5 with set them to 75dB and the center to +1.0dB which set it to 77dB. Thank you guys for your time and be safe. Adjust the volume levels of each channel until they sound similar in volume. I have used the same one for most sites for many years. Onkyo 805, Yamaha YDP2006EQ, Samson Servo 600 amp, Sherwood/Newcastle R972, Mission 765's, SVS SBS02's, A/D/S MS3u sub, Yamaha YDG2030EQ. "The secret to life is honesty and fair dealing, and if you can fake that you've got it made." –Bryan, Answer. For your friends, I would initially set playback levels to average about 75 to 80 dB SPL (Sound Pressure Level) at the seating area, with occasional peaks allowed to 85 dB SPL (C-weighted). Whether matching an entry-level or expensive turntable, choose among six great phono cartridges for budgets from $150 to $750. Using the AVIA test DVD, I did the calibration at 84 dB SPL; the sub is set at 88 dB. Required fields are marked *. Hi All, I am new to the home theater scene and setting up a 7.1 system. I only used it because I noticed I didn't have to turn the volume up that loud, Got you so should I rerun audyssey because I did not save my distance settings. I just happened to pull out the SPL meter to check things out, and noticed all levels read low (considering I've read 75dB is what they are supposed to be set to ). I am running a 3.2 setup. If reference level is 0dB and output of 105dB. You must log in or register to reply here. In general, though, Aud does really well with setting distances. I had to increase to -1.0dB to get them to read 75dB together. db is a logarithmic scale. by Alan Lofft (bio), Axiom Audio (reprinted with permission), Home > Latest > Articles > Home Theater > The Ideal SPL For Home Theater, Your email address will not be published. Come join the discussion about home audio/video, home theaters, troubleshooting, projects, DIY’s, product reviews and more! I used my Denon to match at 75db and then adjusted them to my taste after that. -XXdb is some volume below reference, +XXdb is some volume above. I don't like Dynamic Volume myself, yes its a dynamic compression routine/night time type mode. My recieve is Onkyo - TX-N1007. 0db is the preamp's reference level. I then use a UMIK-1 and the REW software SPL meter to measure each sub near field at 80db. With home theater gear the proper bass balance with an inexpensive SPL meter keeps the sub(s) at the same levels as the rest of the channels. Inexpensive SPL meters do tend to read 3-7dB low <100hz. A movie like War of the Worlds is thrilling played loud. (In this discussion, I'm assuming you measured SPL levels using the Radio Shack Sound Level Meter, model 33-4050, set to the "C" weighting scale, in the averaging mode, and at your seating area. Brief exposure to that shouldn't cause damage. I don't see any harm in double checking your levels, but distances I leave alone. I slowly increase volume at the AVR to reference volume and then adjust the physical sub trim if necessary. The 75db reference level is for test tones when calibrating your system. Allow the test tone to sweep each speaker in your system. Some concert material in real life peaks at 100 dB SPL or higher, so you can certainly duplicate the levels experienced with live music if you choose to do so… and if your system, speakers and amplifiers are up to it. After running audyssey i adjusted the distances manually with a measuring tape and used a vlike vl6708 slp meter to adjust db levels at 0.0db max volume aiming for 75db reference level to each channel. Install/Placement. 105 db should be the loudest your receiver ever generates: it is for movies with explosions. The reason your receiver is marked in db rather than in a linear scale is because this corresponds much better to the way the human ear listens, i.e. Audyssey calibrates for 75dB, and the internal test tones max out at 75dB, but keep in mind when watching a movie at volume 0 (reference) it will actually be 85dB with 105dB peaks. What where all channels set to per audyssey? After age 40, everyone gets a bit of age-related hearing loss. Coming attractions previews, however, were louder, peaking at 90 dB SPL, a lot louder than the actual movie presentations. When manually setting the levels, I have to increase to -1.0dB (meaning an increase of 11dB) on both to reach 76dB. That is a very informative PDF but it doesn't directly apply to consumer level equipment. With gain controls it is best to avoid the extremes. Your email address will not be published. Turn that on and try playing with the different level offsets to see if you have a preference. A lot of this depends on the SPL meter. They commissioned a Toronto engineering firm to measure sound levels in five different movie theaters, with different films, including a THX theater. Hi All, I am new to the home theater scene and setting up a 7.1 system. I read online that sustained levels at or above 90dB can cause hearing loss. Scroll to continue reading. Don't know if that helps or not. Avr denon s950h - klipsch cc r52c - klipsch bookshelf r15m x4 - klipsch atmos spks r41sa x2 - klipsch R-112SW - 12 gauge wire going to all channels - 968 cubic ft room. There are significant reasons why the human ear fubctions the way it does.