LeftCoastTim said: I don't understand why they are using pink noise (which is not flat), and they get a flat looking frequency response, and then target EQ to a flat in-room frequency response. Click to expand...

SDX-LV said:



With all of your expertise in making some of the best speakers in the world, could you please advise how to practically set up IN-8 speakers in a complex listening space so that we do not mess it all up? Generally there are statements such as "great speakers should not be equalized above transition frequency" and "Room correction/calibration software often causes more harm than it helps", but:



How would you integrate the Kali speakers for LCR duties in a surround setup together with 2-4 subwoofers inside a flawed living-room? (speakers close to walls, one sidewall missing, no treatments, etc.)

Would you recommend entrusting everything to some Audissey, Dirac, ARC or other automatic calibration wizzard?

Would you just do some manual level matching + use the built-in Boundary EQ?

Would you use some advanced parametric equalization hardware? For 2-channel listening with 1 sub there are more options, but it is hard to understand how to set-up 5+ speakers and multiple subs for watching Blu-ray or playing on XBox



Thank you for any tips! Dear Mr. Sprinkle,With all of your expertise in making some of the best speakers in the world, could you please advise how to practically set up IN-8 speakers in a complex listening space so that we do not mess it all up? Generally there are statements such as "great speakers should not be equalized above transition frequency" and "Room correction/calibration software often causes more harm than it helps", but:in a surround setup together with 2-4 subwoofers inside a flawed living-room? (speakers close to walls, one sidewall missing, no treatments, etc.)For 2-channel listening with 1 sub there are more options, but it is hard to understand how to set-up 5+ speakers and multiple subs for watching Blu-ray or playing on XBoxThank you for any tips! Click to expand...

Maybe this should have a different thread but this is a very important topic. This may be TMI, but here goes...EQ is often regarded as a cure-all for room response issues. Simply stated, EQ applied to a bad setup is like putting lipstick on a pig. It's still a pig. The room calibration measurement and EQ shown in the video should happen only after major room issues have been dealt with and the speakers are in a good spot in the room.Assuming that you have an existing room and you don't get to choose dimensions, you should still check for issues such as loose wallboard, mechanical resonances, etc. For resolution of modal issues, I don't recommend broad-band bass traps, as they don't fix the problems, they just attenuate bass. (Then you are filling in holes with EQ as opposed to cutting peaks. This directly reduces your headroom.) You mention that this is a complex space, so I am visualizing non-parallel walls. This would make calculation of modal frequencies more difficult, so you could use time-domain measurements to understand your room. Waterfall plots can be used with static microphone measurements to visualize problem frequencies. These frequencies should be noted as a guide for modal remediation and speaker placement. You would also want to measure in different locations to determine which dimensions belong to which modes. (I could go on about some tricks for this detective work, but for the sake of brevity, I will defer to other sources on the topic) There are some good starting points for rectangular rooms, but again, I'm going to assume you are in an odd space.. The moving microphone method can be used to screen potential loudspeaker placements and select the one with the least problems. If you are left with a speaker position with one or more cancellations, consider using a tuned bass trap to attenuate that frequency at a boundary where the resonance is most intense. by attenuating the mode, you will actually fill in the null.Once the room issues are dealt with and the loudspeakers are in the right place, then you can use EQ to pull down resonant peaks and finish optimization. The video shows a rapid and repeatable method for the required spatial average measurements. I have data to show that this method is comparable to an average of 32 static microphone positions in the same volume.Amir also has a good article on optimization at https://www.jblsynthesis.com/about/acoustics.html