Search results

  1. C

    Entreq Tellus grounding

    Take k-ohms measurement between the grounding terminal you want to add to your speaker terminal and every other terminal on the box you want to use for grounding. If it has no DC connection (open circuit) it may be safe to connect it to your speaker terminal. Take similar measurement at your...
  2. C

    Entreq Tellus grounding

    Likely true in most cases but as I have repeatedly indicated, it may still help address problems in some circumstances. I just am not seeing any such circumstances in the average audio amplifier that exists within larger audio system. So basically I am in agreement with you and that is why I...
  3. C

    Entreq Tellus grounding

    Well if we want to take the plunge into philosophy all I can say is that for me the divine begins where my understanding ends because everything beyond that boundary is mystery. Science seems to be the one 'religion' that best explains the mind of God to me, if such even exists. Try violating...
  4. C

    Entreq Tellus grounding

    Section entitled 'Loaded Words That Cause Misunderstandings' discusses the concept of shield, earth, signal grounds and the ground plane under an antenna etc. This is all very basic stuff but unfortunately for the non-engineer type the concepts are probably foreign and only marginally...
  5. C

    Entreq Tellus grounding

    I cannot justify the purchase of grounding solution for a system that cost less than the grounding. Ordering them solely so I can convince myself one way or the other would be taking advantage of the return policy for a free education as well as likely a complete waste of everyone's time...
  6. C

    Entreq Tellus grounding

    The paper linked to below does have something to say about speaker wires and RFI/EMI, but it takes an entirely different approach with twisted pair instead of grounding. It goes so far as to claim that twisted pair is the ideal speaker wire. Very informative but unfortunately somewhat heavy...
  7. C

    Entreq Tellus grounding

    Balanced cabling is probably one of the easiest ways to improve system CMRR while meticulous system grounding of pieced together components is probably one of the most difficult. How to improve grounding related s/n with components that are physically large and maybe physically distant also...
  8. C

    Entreq Tellus grounding

    Just checking in again after a couple days to see what sort of hornet's nest my comments stirred up. Hey people, something to keep in mind about me is that I am blunt and sometimes annoying. In my heart there is no malice toward anyone but if I am 'puzzled and amuzed' by something that seems...
  9. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    We appear to be stuck in a cycle. I hope I can end it with this last post. Harman study concluded that smoothed and extended frequency response is preferable and that the preferred target EQ is not flat. That is direct paraphrase from Dr. Olive's slides. I am in complete agreement with these...
  10. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    How flattering. Are you sure you want to elevate a novice like me to sticky status? Only been at this for two years as solitary practitioner.;) However the spirit moves you. Your forum. I am just glad to have a place to try out my wacky ideas.:) Thanks for fixing my account. I have been...
  11. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Not exactly. Audyssey curve also sloped down and it did the worst. It may have been flat in the bass but it attenuated the treble. It did worse than the curve that was flat all the way across. At least the other flat curve was deemed as good as no EQ. There could have been other reasons...
  12. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    That is one of the most interesting simulation I have seen. Great graphics. I am unable to upload any more images for some reason so I basically cannot respond to the rest of your comments. I would like you to know that I support the Harman study and its stated conclusions. What I do...
  13. C

    Tuning a low budget-ish apartment home theater

    First, the system: Up top we have an acoustically transparent screen and behind that a Samsung LCD. The height channel speakers are Sapphire model SB 5.25" aluminum woofer and 1" polycell/hicell plastic dome tweeter. I have never opened one but I assume they are unbraced. (Cary Christie...
  14. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Do you have a link to the user manual? I would like to see what it says about manual entry of room parameters, curve fit to the given room, etc. I am not seeing evidence of that. Harman defined 'most positive results' as being what pleases their trained listeners from among the choices they...
  15. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Oh yes, sorry I forgot to include one last point. The 3dB limits of correction need to be determined by how well the actual in-room response fits to the target. A bowl-shaped target not only allows for less power requirement to achieve the end result, but also allows for more extension in the...
  16. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Now there are other aspects in this equation that also need considering, so let's get on to that part. Cabin gain within a single room is basically a fixed quantity so the slope of the curve is going to be a function of the room size more than anything else. Placement is a function of...
  17. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    My experiments with the equalizer in the feedback path demonstrated that the cutoff point (-3dB in the case of Audyssey) that the algorithms in the receiver depend upon to tell them where to stop correcting the response are directly affected by the overall slope of the response that the...
  18. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Harman measured its room EQ in an echoic room of course because that is the typical listening environment. Here is the 1 seat performance of all the EQ plus the speaker without EQ is measured too in black trace. The equalization that was most preferred was the equalization that most...
  19. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Well that was interesting. The anechoic response is so good the graphic did not even show up. Hm. Try, try again... OK so now it is a ghostly image. Check the Harman study if you want their actual image. Speakers are designed with the help of anechoic chambers. The reason is that in an...
  20. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    This is sort of a 'when did you stop beating your wife' kind of statement. Audyssey target in this study did not attempt to 'correct the wide 2kHz dip in the sound power response of the loudspeaker'. It attempted to superimpose a dip of its own design so a dip is expected. My opinion is that...
  21. C

    Tuning a low budget-ish apartment home theater

    Hello all you beautiful people.:) I am about to embark on room tuning. So far everything I have done is by ear. I am happy with the improvement of careful placement and DIY absorbers but have not gotten to that 'Aha' moment yet. I have gotten a recommendation to buy the UMIK-1 and use...
  22. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Are you sure about that? It appears that Audyssey significantly narrowed the dip by about half an octave and shifted it down about 1000Hz too, although the response also has residual peaks and dips all over it including two apparent peaks on either side that seem to increase the apparent...
  23. C

    Negative show report posts... enough is enough.

    After my heart... As an Ice Creamophile luddite, I prefer to eat pure monocreamic or at most stereocreamic. Things just get too crazy in multicreamic and fluoride will not help. OK can we close the thread now before the jokes get old?:p (that's not me poking my tongue out, I just paused...
  24. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Thanks for those links Bob. I read the first and am working on the second. Actually they modified the Dirac target to match the general shape of the Audyssey in-room EQ result and then compared Audyssey vs. Dirac to see if there was any audible difference in sound stage and imaging. They...
  25. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Currently using Linux players. I also have an outdated MythTV database on my other server that is just sitting there unused until I get the hardware finalized. I have to save the MySQL database to an archive and import it into the upgraded version of MythTV. One of the drawbacks of such tools is...
  26. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Necessity is the mother of invention. no $$$. I need ot look into that. I was not aware that Dirac runs on a PC. If so that might be the key to saving myself some $$$. Anything that minimizes cost is king here. If I can put in a single custom curve that is all I need. I can tune it how I...
  27. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Apparently, poorly. Precedence effect helps out (head-related transfer function). Non-directional sound (lower wavelength) is indistinguishable from power response to humans. I am still new at this, Amir. Someone else needs to do the explaining. Far as I know we hear both the on-axis and the...
  28. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    The system is (really need to work on a signature and profile I guess now that I am deep into the technical aspects of this): Room: listening space is 14' wide by 12' deep by 8' high. Open on the left to kitchen and hall and bath and bedroom approximately triples the size (doors are always...
  29. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Yes, helpful, thanks. The weak bass of Audyssey really helps me out here at night. 30+ year old apartment walls and floor are not the best barrier to sound. DV and DEQ are also a must when there are people sleeping all around. Without them making out the dialog is hopeless in movies...
  30. C

    Redefine your budget room EQ 'flat' target curve to Harman's pro curve

    Well it seems it was not as clever an idea as it first appeared. First, the equipment. Audyssey microphone that plugs into DIY plug-in-power adapter 4.5V battery connects to 4.7K resistor that connects to microphone input phone jack and 5uF/25V aluminum DC blocking capacitor that connects...

About us

  • What’s Best Forum is THE forum for high end audio, product reviews, advice and sharing experiences on the best of everything else. This is THE place where audiophiles and audio companies discuss vintage, contemporary and new audio products, music servers, music streamers, computer audio, digital-to-analog converters, turntables, phono stages, cartridges, reel-to-reel tape machines, speakers, headphones and tube and solid-state amplification. Founded in 2010 What’s Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals, we enjoy learning about new things and meeting new people, and participating in spirited debates.

Quick Navigation

Home Forums Contact us

User Menu

Login
Steve Williams
Site Founder | Site Owner | Administrator
Ron Resnick
Site Co-Owner | Administrator
Julian (The Fixer)
Website Build | Marketing Managersing
Top Bottom