Search:

Type: Posts; User: Robh3606; Keyword(s):

Page 1 of 20 1 2 3 4

Search: Search took 1.08 seconds.

  1. Hello Widget Thanks for the picture fix....

    Hello Widget

    Thanks for the picture fix. Running them in stacks! That’s interesting! Have you fired yours up yet?

    If not I would wait and see. With mine in full dipole operation there was no...
  2. This is worth playing with. At least in my room....

    This is worth playing with. At least in my room. I did a quick check to see what would happen using some 4" batting paper left on. It had a significant effect in room. Normally I couldn't hear a...
  3. Replies
    121
    Views
    12,903

    That is not a 1 meter measurement but yes it was...

    That is not a 1 meter measurement but yes it was loud as hell and worst case. I would never listen to them at anywhere near that at average levels. I am about an 85db - 90db listener depending on the...
  4. Heil with a JBL Woofer part 2 Back wave attenuation for best in room balance.

    Has anyone tried any attenuation of the back wave?? I was just listening to a live recording and was impressed with how well the venue ambiance came through. That said on non live recordings I also...
  5. Replies
    121
    Views
    12,903

    That's odd! Well at least you know. Here is a...

    That's odd! Well at least you know. Here is a distortion measurement I did a while back. It's overall THD Sine Sweep.

    Rob:)
  6. Replies
    24
    Views
    6,563

    I had a 2225 re-coned as a 2235 over time...

    I had a 2225 re-coned as a 2235 over time something came loose in the motor structure. Don't know if it's part of a toasted VC or what else it could be. Can't imagine the flux stabilization ring...
  7. Replies
    48
    Views
    3,921

    Those look great! Rob:)

    Those look great!

    Rob:)
  8. Replies
    121
    Views
    12,903

    You could, I didn't. You could also limit a sine...

    You could, I didn't. You could also limit a sine sweep or just use Impulse. Just do whatever you are comfortable with.

    Rob:)
  9. Replies
    160
    Views
    14,589

    Cool didn't know that. They used 18db networks...

    Cool didn't know that. They used 18db networks AMT-1 large Heil, The schematics are readilly available

    http://esslabsusa.com/wp-content/uploads/2017/10/ESS_revisedfinal-2.pdf

    Rob:)
  10. Thread: 305P MkII

    by Robh3606
    Replies
    10
    Views
    996

    Thanks Grumpy! This one too usable to about 25Hz...

    Thanks Grumpy! This one too usable to about 25Hz which is just fine for me.

    Rob:)
  11. Replies
    160
    Views
    14,589

    Hello jmpsmash What kind of compensation do...

    Hello jmpsmash


    What kind of compensation do you have on the compression driver?? The "backwave" is going to be the voltage drive to the CD without the benefit of any horn loading so it may not...
  12. Thread: 305P MkII

    by Robh3606
    Replies
    10
    Views
    996

    Hello Grumpy How do you like the sub?? Does it...

    Hello Grumpy

    How do you like the sub?? Does it have real reach to below 30Hz or is it "music only". I don't use the matching sub I run my pair through an M552 for my crossover and use line level...
  13. Replies
    4
    Views
    106

    There is at least one in Manhattan. One of these...

    There is at least one in Manhattan. One of these days!

    Rob :)

    https://tokyorecordbar.com/
  14. Replies
    121
    Views
    12,903

    I am using a pair now. Don't have a sibilance...

    I am using a pair now. Don't have a sibilance issue with them. I have am using a notch filter to tame the peak.

    Rob:)
  15. Replies
    121
    Views
    12,903

    Hello dkalsi Nice think you are going to...

    Hello dkalsi



    Nice think you are going to like them. How old is that design?? Your measurements may not, you won't know till you power them up with the different versions around. Either way...
  16. Replies
    121
    Views
    12,903

    Hello Jmpsmash You might want to try the 5K...

    Hello Jmpsmash

    You might want to try the 5K notch. Especially with DSP its a simple low Q notch. That would smooth out the top a bit and with your crossover at 1.2K you could just tweek the level...
  17. Replies
    55
    Views
    2,271

    Raspberries !!! Rob:)

    Raspberries !!!

    Rob:)
  18. Replies
    121
    Views
    12,903

    Hello I will attach a plot. The light grey is...

    Hello

    I will attach a plot. The light grey is the raw driver the black is with a notch filter and some resistors to bring it up to 8 ohms average. They have had several versions of the diaphragm...
  19. Replies
    121
    Views
    12,903

    They certainly do but combined with a network you...

    They certainly do but combined with a network you have to watch them as they can end up going low under 4 ohms.

    Rob:)
  20. Replies
    5
    Views
    282

    You are going to have to take a measurement to...

    You are going to have to take a measurement to see. Anyone can claim to know and be completely wrong unless of course they have a measurement to back it up using your driver on that horn. Not likely....
  21. It's not as easy as you think to bi-amp. You have...

    It's not as easy as you think to bi-amp. You have to model the filter section for the midrange, remove the highpass pole/s and see what changes there are to the voltage drive. You may have to change...
  22. Replies
    74
    Views
    43,214

    One will get it done. Rob:)

    One will get it done.

    Rob:)
  23. Replies
    3
    Views
    277

    Hello Bonzo I have coated 2435's mounted to...

    Hello Bonzo

    I have coated 2435's mounted to PTH1010 waveguides crossover at 1.5K in my active mains in my HT set-up. The other system is my Array 1400 clones, my avatar, where I have coated 2435's...
  24. Replies
    55
    Views
    2,271

    Things have changed so much over the life of this...

    Things have changed so much over the life of this forum. Back when we were most active if you wanted to do a DIY build on almost all of the legacy large format monitors it was no big deal. We had...
  25. Replies
    4
    Views
    196

    You might want to look locally. I had my PS-200...

    You might want to look locally. I had my PS-200 and PS-400 serviced at an authorized repair facility I could drive too. Saved me a bundle on shipping.

    Rob:)
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4