Search results

  1. J

    Linkwitz LX521.4 Review (and measurements!)

    This is the FR of a properly setup LX521.4MG in a symmetrical and untreated room. 1/12 octave smoothed and Y axis scaled in 10 dBs. First graph is 20-20.000 Hz and second graph is 20-400 Hz. Lastly, the spectrogram. How the speaker sounds in reality is very difficult to know only attending at...
  2. J

    Linkwitz LX521.4 Review (and measurements!)

    Hi again @Zambo I've been thinking a little more about your particular case. 14 feet speaker separation is way too much for proper phantom scene recreation. So I would recommend you to adhere to 7 to 9 feet distance suggested originally by SL. 15 feet to each loudspeaker is also way more than...
  3. J

    Linkwitz LX521.4 Review (and measurements!)

    Hi @Zambo Attached lately some LX521.4MG in-room measurements at my Linkwitz Lounge Santiago Instagram. Take an eye on it if you wish to see how measures my system. Link removed by request. My room is purely orthogonal and this makes a big difference. You seem to have some adjacent open...
  4. J

    Hypex NCx500 Class D Amplifier Review

    I would engage the OP1612 buffer and would try it again. Engaging buffer keeps minimum input impedance at 47 kohm on the line level RME. Maybe the edgy sound is due to this. I still have to do a serious listening session with YBA1 double chassis preamp + NCx500 (double mono topology with two...
  5. J

    Hypex NCx500 Class D Amplifier Review

    I had two loudspeakers on burn-in time for three and a half years, and with great success IMHO. On the fourth year they started to sound like angels, so smooth, so lineal, so engaging... but suddenly, without previous notice, the voice coils melted in the best of their lives They died so young...
  6. J

    Hypex NCx500 Class D Amplifier Review

    Thank you very much for you feedback (not negative lol). Your system is a quite impressive and neatly organized setup :) The RME is a great piece of equipment, it offers fantastic flexibility with its four outputs (I wasn't aware it also offer RIAA eq. Wow, what a nice feature!). I have had my...
  7. J

    Hypex NCx500 Class D Amplifier Review

    Hi DrCWO, thanks for the photos. I've received just now my NCx500 amp, but still hadn't the time to open the parcel :) Your power amp seems to have the buffer stage bypassed at jumpers J15&J7, so it's running at 11,5 dB voltage gain instead of 26.8 dB. What preamplifier/DAC are you going to...
  8. J

    Hypex NCx500 Class D Amplifier Review

    Me too, I expect to receive a power amp today, wednesday, at least this is what UPS tracking says. Two NCX500 modules with two SMPS 1200A700 power supplies. They are out of stock right now.
  9. J

    Anyone has got or had an experience with ultra near field listening?

    I suppose that in UNF setup the low frequencies have a so small in-room spl that they can't develop any room mode excitation but still you listen lots of low fequencies at 25 cm or 5 cm distance. Also logical. In my approach, i've solved the room modes with dipolar bass radiation pattern...
  10. J

    Anyone has got or had an experience with ultra near field listening?

    Understood. It's logical then that you don't experience this issue due to full range drivers employed in both of your setups. From your photos I thought it was one only setup, but they are two different ones, ok. In my own setup I'm using an acoustically small dipolar 4 way system. The LX521 top...
  11. J

    Anyone has got or had an experience with ultra near field listening?

    Hi! You seem to be walking through a very unusual way. In my opinion it's clear the advantages you claim are very similar to what I'm experiencing with my own setup. I have been fiddling endlessly with the speakers room setup at my home and have arrived to at a very nearfield disposition also...
  12. J

    My waf dipole speaker design. Waffle.

    Liked your post there on DIYaudio. That's why I have my LX521 at 80 cm from my ears in ultra nearfield setup. Much, much less room modulated sound and much, much more "what is on the recording" sound.
  13. J

    My waf dipole speaker design. Waffle.

    Hi Juhazi! Thanks for the links. I've been reading a lot about your AINOgradient thread at DIYaudio. Nice speaker indeed. I think that at some point you were debating yourself regarding adding dipolar bass or not, although you've finally settled on monopolar with Seas LROY. As you've commented...
  14. J

    My waf dipole speaker design. Waffle.

    Hi again Ben! I really appreciate your efforts to construct a new transducer employing the LX521 basic principles (OB) but adapted to your own necessities and tastes. IMHO what you have accomplished it's not an easy task. You have also selected a completely different driver complement and...
  15. J

    My waf dipole speaker design. Waffle.

    Just for curiosity, when applying the HP LR4 did you notice any group delay effect? Sometimes visibly "awkward" measurements are completely unnoticed to the ear. Regarding the voices issue you were explaining with the LX521, I have been playing quite a lot of voice recordings these past days...
  16. J

    My waf dipole speaker design. Waffle.

    I really loved your bass bins, so small and with full force cancelation. I bet they can displace a great spl without even a slight vibration. Not that the LXsub4s are bad in any way, they are also excellently designed and executed with state of the art drivers. How much is the cost of your subs...
  17. J

    My waf dipole speaker design. Waffle.

    Well, the proof is in the cake. Just place them in this way and listen, it's free. The 4 drivers sound at the upper baffles is perfectly integrated at that distance of 80 cm to each ear. In my experience this the minimum distance before they collapse as individual drivers. Despite this ultra...
  18. J

    My waf dipole speaker design. Waffle.

    Hi Ben. Don't you worry for the late response. Ok, so not a big difference without the absorbers. Look, here is my LX521 plus LXmini FR setup in my listening room. There are 12 power amps running. If I'd have to describe the sound I would say it's a LX521 on stereoids. Lots of three dimensional...
  19. J

    My waf dipole speaker design. Waffle.

    By the way, I've seen that you have placed some kind of high frequency absorbers in the top of the bass bins. Does it mean you have experienced some kind of measurable combing effect on this surface? Did the treatment helped with it? Thanks Best regards
Back
Top Bottom