My recieve is Onkyo - TX-N1007. Movies, Ultra HD Blu-ray Discs, DVDs & Theatricks. New comments cannot be posted and votes cannot be cast, More posts from the hometheater community. THX's certification program for movie theaters typically sets cinema playback levels to average around 85 dB SPL in the middle area of the cinema. 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. Adjust the volume levels of each channel until they sound similar in volume. I run dual subs. What's the best way to set the subs volume? I prefer to calibrate each speaker to 75 dB SPL—that’s pretty much a standard, and it’s plenty loud and gets you enough volume to exceed any ambient noise in the room. -XXdb is some volume below reference, +XXdb is some volume above. My question is: What volume levels (in SPL terms) should I subject my friends to when watching DVD movies? If your ears ring afterward, you've certainly had permanent damage. Place the microphone face up, at ear level, at the central listening position—using a tripod if you can—and play a test tone for each speaker. If the speakers were set to say -2.5 and you bumped them to 2.5 during the manual calibration process that is a 5dB increase. They commissioned a Toronto engineering firm to measure sound levels in five different movie theaters, with different films, including a THX theater. That will still leave room for increasing the center-channel loudness level by a few dB for dialog clarity if needed. I'm confused, sorry just trying to understand this. Thanks so much. per your original question. (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. What where all channels set to per audyssey? 2 pb2000 or 1 fv15hp or 1 vtf 15h mk2 or 1 Monolith 15. If reference level is 0dB and output of 105dB. db is a logarithmic scale. –Bryan, Answer. Continuous exposure is the major cause of damaged hearing -- like listening to live rock bands for several hours. I had to increase to -1.0dB to get them to read 75dB together. This primer covers the basics of subwoofer set-up so you … A lot of this depends on the SPL meter. I wouldn't mess with the distances Audyssey sets. Save my name, email, and website in this browser for the next time I comment. I want Audyssey to set the internal sub trim to somewhere between -5 and -7db. On your AV receiver, the dB indications are still relative and you should hear them that way. 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 you're installing a $500 home theater in a box, or a $50,000 component system, the same basic principles apply to subwoofer configuration and installation. Hi All, I am new to the home theater scene and setting up a 7.1 system. A quick perusal of the Q2 2020 RIAA music industry sales data provides a lot of clarity. Turn that on and try playing with the different level offsets to see if you have a preference. Your one stop for all things Home Theater (except soundbars). I set the SPL meter to "slow" and "c weighted". This is the first reciever I have owned. Keep in mind, however, that the relative loudness of your particular speakers and AV receiver … If your AV receiver’s setting is at, say, -25 dB, and you turn it up to –22 dB, that 3-dB increase in loudness should sound “slightly louder.” Going from –25 dB to –15 dB, an increase of 10 dB, should sound about “twice as loud”. Think your CDs sound as good as they can? I’m not necessarily looking for 75db at the MLP. Come join the discussion about home audio/video, home theaters, troubleshooting, projects, DIY’s, product reviews and more! My square-shaped home theatre room is only 12 x 12 x 9 ft., with the AV components and the TV in one corner, and two settees in a "V" arrangement in the diagonally opposite corner. "The secret to life is honesty and fair dealing, and if you can fake that you've got it made." See page 38. http://voesd.at/files/Dolby%205.1%20Production%20Guide.s.pdf. 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. Thank you guys for your time and be safe. momentary exposure to peaks of 120db wont cause hearing loss, it is sustained levels that do. So I did that too, with the level matching, but I'm just wondering why the microphone on the Denon reads so much lower than my handheld SPL meter. 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. A movie like War of the Worlds is thrilling played loud. In a home theater session, guests are often reluctant to complain if everyone else seems to be comfortable with a given playback volume – always ask your guests if the playback volume is too loud or if they are comfortable with it. 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. The 75db reference level is for test tones when calibrating your system. Hi this is robin i bought new sony blu ray home theater system bdv E290 i want to set the exact volume level for all the speakers . This is especially true with subwoofers. It also depends on what the sound is. Press J to jump to the feed. Reference level is not 105db, it is 75db with peaks of 115db. With gain controls it is best to avoid the extremes. The dynamic range of movie material is 85db - 105db, with the LFE channel being upto 115db. Dynamic eq is an enhancement. They don't always match the physical measurements because it has more to do with timing. Everything else you typed (speakers small, xover 80 and 120 hz) in the op looks pretty solid except dynamic volume. I don't understand it at all. Does it matter on the Audyssey version I have I don't have the XT32 I have a lower tier Denon receiver S950H also the loudest volume I go to is -20DB it's plenty loud in the size room I'm in 11×11×8. But be careful: tolerance levels vary by 3 to 6 dB or more between individuals, and since your guests can't move farther back to reduce the subjective volume, watch for any signs of duress or discomfort on their faces, and note their ages. Home Theater Receivers | Processors | Amps, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Coming attractions previews, however, were louder, peaking at 90 dB SPL, a lot louder than the actual movie presentations. 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. The ear responds to average level and is how we perceive 'loudness'. i dont have auto speaker calibration setup .In manual calibration the volume level +- 6db for all the speakers.i dont know how to use spl meter.kindly send me the exact speaker level volume for each speaker in db. I then run Audyssey from position 1. What's the deal with reference level 00 and things like that? I'm using an SPL meter to set my speaker levels and need a little help. After age 40, everyone gets a bit of age-related hearing loss. 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 movies the RLO at 0 is fine, but I move it around for music. 0db is the preamp's reference level. For example, the 84-dB SPL calibration level that you used with the Avia test DVD is termed "quite loud" by most listeners. It's largely about final preference but as was said I find it (Audyssey, altho I've never had the base MultEQ version) generally fine for setting delays (distance). Onkyo 805, Yamaha YDP2006EQ, Samson Servo 600 amp, Sherwood/Newcastle R972, Mission 765's, SVS SBS02's, A/D/S MS3u sub, Yamaha YDG2030EQ. Any particular sample value (or the average) is represented by negative numbers; ie, the 'distance', if you will, below 0 dB. All were measured using the A-weighting scale, which gives less emphasis to deep bass. Some of the most complete research I collected on movie theater sound levels was conducted in 2003 by a consumer TV show, "Marketplace," broadcast by CBC television in Canada. Reference level is dependant on how far you sit from the speakers as well. Back to your home theater room: Raising playback levels to peak at 95 dB SPL, a level that most listeners term "very loud," is risky unless you're well acquainted with your friends' listening preferences.