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    Those look great! Rob:)

    Those look great!

    Rob:)
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    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:)
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    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:)
  4. Thread: 305P MkII

    by Robh3606
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    939

    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:)
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    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...
  6. Thread: 305P MkII

    by Robh3606
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    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...
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    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/
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    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:)
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    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...
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    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...
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    Raspberries !!! Rob:)

    Raspberries !!!

    Rob:)
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    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...
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    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:)
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    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....
  15. 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...
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    One will get it done. Rob:)

    One will get it done.

    Rob:)
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    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...
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    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...
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    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:)
  20. Thread: Too much?

    by Robh3606
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    Yup! Good for a full body massage or home...

    Yup! Good for a full body massage or home levitation!

    Rob:)
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    Hello Bonzo Have you listened to any of the...

    Hello Bonzo

    Have you listened to any of the 435Be or 476Be based systems? I use 2435/435 drivers in a pair of systems and also use the 045Be in one of them. I am partial to the clarity of the Be...
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    Just another bump. Got my cabinets refinished...

    Just another bump. Got my cabinets refinished holes plugged and old crossovers removed. Anyone else get them up and going?

    Rob :)
  23. Hello Widget L101 he can use one of the Erse...

    Hello Widget

    L101 he can use one of the Erse super Q's. The only coil other used in the bi-amp set-up is L1 at .040 mH which is going to have a DCR in miliohms. The DCR for the coil is completely...
  24. Schematic is here:...

    Schematic is here: http://www.jblproservice.com/pdf/Studio%20Monitor%20Series/4435LR.pdf

    Don't forget the 20uf just beyond the bi-amp switch it is a pole in the HF crossover. Just use a common...
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    Use a thin blade paint scraper/spackle knife. Tap...

    Use a thin blade paint scraper/spackle knife. Tap in under the frame to gently pry it up.

    Rob:)
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