I've got a few sub-related puzzles to solve: 1) Currently I have one, big expensive sub with the left wide speaker sitting on top of it. Item #3 on page 11? it sounds good but im wondering if i should do some more tweeking. Subwoofer Dayton Sub-1000. This is so strange when both subs are at equal distance to the listening … The reason for the longer distance is because the processing in your sub adds delay to the signal. To get the best of both worlds you will need to move to an external Sub Equalizer. I did this and the Audyssey readings were fairly good, so I left them alone. As to what crossover to set for your speaker/sub combination, I would start with 80 Hz. if one sub has its own internal 7 band eq, that attempts to adjust the sub to a flat response from one listening position, as in the Velodyne Optimum series, should this be done first before running the Audyssey Mult EQ in the AVR or via the Audyssey Sub-EQ or via the MultEQ Pro calibration? For more subwoofer set up tips please look here. LFE–THX or LFE+Main. Are they different? The algorithms and hardware used are identical. Audyssey seems to set it far to quiet! Does Audyssey measure phase of the sub? So, when you set a crossover for each of your speakers (say, at 60 Hz) the content above 60 Hz goes to the speakers and the content below goes to the sub. If MultEQ reports high negative trims (e.g., –12 dB) for the subwoofer, then you should turn the level control further down and run MultEQ again If there is a Phase control on the sub it should be set to 0° I was considering purchasing a second sub (I have a new Onkyo 3008) and was wondering what I gain with it. Probably best to leave that knob at 0. I don't think you will get much benefit by applying a single parametric band cut and certainly would not recommend adding a parametric boost. If MultEQ reports high negative trims (e.g., –12 dB) for the subwoofer, then you should turn the level control further down and run MultEQ again, If there is a Phase control on the sub it should be set to 0°, Place them at equal distances from the main listening position, Set the level controls on the back so they both play at the same level, Connect a y-cord to the sub out of the AVR and then connect to both subs, Turn off processing in the subs as it will not be able to give you the same resolution that you will get from MultEQ (thousands of points vs. a few parametric bands). What do you think? My sub is the Rythmik Audio servo … My other subs has one additional control of a built in parametric EQ. I used Audyssey to calibrate my system, Denon AVR-X4100W with 9 channels (4 ceilings and 5 floors, with 2 Subwoofers, both located next to Front Left and Right speakers). Of course, then you won't be getting the benefit of individual time and level alignment of the subs. It's important to follow some simple guidelines to avoid having these controls interfere with proper subwoofer calibration and integration with the satellite speakers. Please be aware that digital processing in the subs introduces additional signal delay. What do you think? flat,punch, and depth i ran the audessy with the flat setting a few times i got this setting. After running Audyssey it set my Front and Center speakers as Large with the crossovers as Full Range, the surrounds marked as Small with crossover at 40Hz. Surprisingly, the result was awful---I have, it seems, a lack of lows on my main speakers and the sound is somewhat annoying with female singers and horns. The other sub is in the rear corner of the room (an older Velodyne HGS 18). Very often it has the wrong slope and so it is not recommended to use it. With the sub low-level volume set at 9 o'clock it comes out at about 0 dB on setup (sub cross over disabled for LFE input). I noticed that when I set the sub phase/delay at 90 degrees (12 o'clock) Audyssey will return a reasonable subwoofer distance although it will say that the sub is out of phase. So, when you run MultEQ the reported delays/distances for such subs will be longer than the physical distance. I had set the gain on the back of the subwoofer halfway and crossover all the way up. This too seems odd, as I'd expect the trial and error results without Audyssey filters to be tainted. You are better off putting a y-cord on the output of the Sound EQ and pinging the subs together as "one". A crossover consists of two parts: (1) a highpass filter that sends the higher frequency content to the speaker and (2) a lowpass filter that sends the lower frequency content to the sub. He also suggests a trial and error approach to sub placement before running Audyssey for the loud, crisp bass position. MultEQ sees that and adjusts for it so that the signal arrives at the same time as the other speakers. One is in the front right corner and other is in the back left corner. Trust your ears. It's best to turn it all the way up to the highest frequency it allows and leave it there always. Adding delay to the subwoofer signal can sometimes help the subwoofer to integrate better with the loudspeakers in the room. (One sub will be in the front, while the other will be in the back.). It is there for legacy 2-ch gear that has no built-in bass management. It is only a lowpass filter. They are in the 3SP Mix mode. And when running the Pro in Integra, do I still leave this cable hooked up? The phase control operates over a range of 0 to 180 degrees. My current Onkyo 577 is hooked up to these 2 subs using a Y cable and calibrated using 2EQ, but I'm looking to upgrade to a better 7.2 receiver with MultiEQ that can apply sub freq corrections to improve the experience. Unfortunately, there is a frequency knob on subwoofers. 3) In the current issue of Home Theater, the author suggests running Audyssey eq and then checking the results with a Radio Shack dB meter and a tape measure and adjusting accordingly. The suggested crossover frequency for the main speakers was 40 Hz, which I manually changed to 60 Hz after runing Audyssey. The subwoofer, Velodyne 800-R, is connected with a single cable, to the receiver subwoofer output, and its phase knob, initially, set to 0°. It was used as an LFE sub when I had my Lexicon MC12. Nothing to do with Phase. My dilemma is - should I upgrade my reciever or just get for instance, an dedicated sub EQ like the SVS AS EQ1 or would a new AVR serve my purpose plus HDMI 1.4 etc. I own 3 subs attached to 3 sub inputs on a Denon AVP-A1HDCI. It is not a good idea to use the LFE+Main mode. This can cause the AV Receiver to run out of level correction range when MultEQ tries to set the subwoofer to reference level. That is only needed for those that are running the built-in room correction in the AVR (not Audyssey Pro). With the new AVP what is the best way to prepare these subs for an Audssey calibration? Hi folks. Prior to Audyssey, it'd set it to -6db @ 42Hz as there is a large peak in my room. Should I leave this setting, or move the phase control knob back to 0°?. My left and right front speakers would always be out of phase to Audyssey since it is a multi-driver design (Raw Acoustics RA8). Then I experimented feeding a 63 Hz frequency from a Rives CD, in stereo, and heard a considerably louder bass with the phase control set to 270°. Subwoofers may measure a greater reported distance than the actual distance due to added electrical delay common in subwoofers. Bruce recalled his days setting up sound systems when he'd use a 1.5-volt battery to test subwoofer phase. If you wish to use processing in the sub, then it should be done first prior to running MultEQ. @Vivek You will get better results by using the Audyssey Sub EQ HT function found in newer models. I have Audyssey Sub EQ and Integra DHC 9.9 with Pro insalled. Am I better off using a y-cable on the output of the ASE to EQ 2 subs, or put the y-cable on the sub output of the AVR and EQ the subs individually on discrete ASE channels? Also, I spoke to Installer support at Audyssey today and they told me that I can calibrate my subwoofer separately without being connected to my AVR. Sub distance (delay) will usually measure longer. The volume setting is also made so that the sub plays at the same level as the other speakers. Was thinking this could be because the sub is out of phase? This is normal and is part of the correction that MultEQ performs to make sure that signals from all speakers and subs are arriving at the main listening position at the same time.
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