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    Hello Toddalin I think it's more along the...

    Hello Toddalin


    I think it's more along the lines of they simply couldn't be bothered and see it as a complete waste of time with little or no point to it. I record live music all the time and as...
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    Hello Ian I used to use my phone at shows...

    Hello Ian

    I used to use my phone at shows sometimes still do. My android isn't much better. It can sound remarkably good as long as you don't go too loud with simple material. They seem to have...
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    You should definitely give the 4315's an...

    You should definitely give the 4315's an audition. Wait a month unless he is desperate. I wouldn't go anywhere near a positive person.

    Rob:)
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    Hello Cooky Thanks! Yes I do almost like...

    Hello Cooky

    Thanks! Yes I do almost like looking at an airbrushed model! I tried an early auto digital EQ once and it measured great but just didn't sound right, go figure!? As rough as those...
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    Here is a warts and all snapshot measurement...

    Here is a warts and all snapshot measurement slightly behind me over my left shoulder. No where near as nice as the LEAP sims. This is not gated and you can clearly see the room modes are different...
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    Hello Macoronie That is a Leap prediction at...

    Hello Macoronie

    That is a Leap prediction at 4ft based on a set of in room measurements at that distance. The actual vs predicted are 1 ft from the horn/close. The close is to verity the on axis...
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    Hello Toddalin Thanks! Having too many issues...

    Hello Toddalin

    Thanks! Having too many issues measuring in room an octave below the crossover point to be sure it's correct. The transition level needs to be spot on and I am not sure with the...
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    Hello Rusty, Widget Thanks! So you reading my...

    Hello Rusty, Widget

    Thanks! So you reading my mind?? That's funny you said that because that is exactly what I was using as a reference to help get the horn level right. I was using the overall...
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    Well got it all built together and working! Only...

    Well got it all built together and working! Only took 5 years to actually hear the drivers! Rainy today so perfect for sitting and listening. Had issues ordering parts with values not available had...
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    They look great! Enjoy them! Rob:)

    They look great! Enjoy them!

    Rob:)
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    Got really lucky had all my parts delivered...

    Got really lucky had all my parts delivered yesterday before the weekend, got one built and measured. Now lets see what it sounds like! It looks close and both measurements are in the ballpark for...
  12. Thread: Altec 19

    by Robh3606
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    Yeah you need a bigger boat! Rob:)

    Yeah you need a bigger boat!

    Rob:)
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    I noticed it too Rob:)

    I noticed it too

    Rob:)
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    Thanks Guys! Set up a bi-amp version of the...

    Thanks Guys!

    Set up a bi-amp version of the crossover. Have two measurement sets one in close the other at 4 ft. Looks good with both just some expected roll off in the last octave with distance....
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    Hello I use sine sweeps to test my boxes. I...

    Hello

    I use sine sweeps to test my boxes. I brace mine at odd 1/3 intervals to break up the panels and also add two coats of dampening compound the stiffens the panels and seal any air leaks....
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    Finally had some dry weather to get my horn mount...

    Finally had some dry weather to get my horn mount boards done. It's been nuts here we had snow early Saturday morning in May!? Wake up temps today were a cool 40's with wind chill into the 30's! At...
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    No you should also high pass as well. Try the...

    No you should also high pass as well. Try the same and see it you like it.

    Here is the schematic. You can see the biamp switch takes out a couple of poles in the high pass

    network ...
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    Hello If you don't change them I would measure...

    Hello

    If you don't change them I would measure the legs and just bring the wires out to an external board to you can set up fixed or stepped attenuation using soldered resistors. Any pot is going...
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    That doesn't look right. Where is the roll off...

    That doesn't look right. Where is the roll off above the mass break point and why do you have multiple impedance peaks??

    Rob:)
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    Been working in LEAP simplifying the parts count,...

    Been working in LEAP simplifying the parts count, adding DCR to the inductors and adjusting any series resistors as required to help compensate for any changes. It looks good still need to verify if...
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    Have you played with the gain structure at all??...

    Have you played with the gain structure at all?? I have some driver actively padded to keep the noise down

    Rob:)
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    Well did some measurements and it didn't matter...

    Well did some measurements and it didn't matter where I measured or how close. Close in it rolled off! So I redid some measurements made sure all the offsets were entered properly and minimum phase...
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    Always go back to the OEM to see what systems...

    Always go back to the OEM to see what systems they were used in. The 4648 is part of the high power cinema series so in actual use they would have subwoofers used below them. Usable to 35Hz won't cut...
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    Hello 2226's wont have the same low end as the...

    Hello

    2226's wont have the same low end as the stock system. You plan on using subs?? I would go with 2123's much easier to find and you only need a .5 cubic ft sub enclosure.

    Rob:)
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    Hello Grumpy Do they have cloth surrounds?? I...

    Hello Grumpy

    Do they have cloth surrounds?? I once had a 2118 they had a small tear in part of the surround on the outside edge against the gasket. It would buzz with sweeps. Almost impossible to...
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