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    Hey Phil! Thanks for the info, I appreciate you...

    Hey Phil! Thanks for the info, I appreciate you taking the time to post.

    BTW, nice purchase you made there, hope they give your ears years of enjoyment.
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    I found my answer. GM to the rescue! ...

    I found my answer. GM to the rescue!

    http://www.diyaudio.com/forums/multi-way/230046-polars-plots-altec-multicells.html#post3370560
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    Polar plots for Altec 1003 multicells?

    As per the title, I'm looking for polar plots for this horn.

    TIA
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    And there are wrong ways, and mostly wrong ways...

    And there are wrong ways, and mostly wrong ways and partly, sometimes wrongs ways... ad nauseam.

    Call it what you will, it is what it is - A system with a poor gain structure such that the s/n...
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    I have mine setup such that it doesn't clip when...

    I have mine setup such that it doesn't clip when cranked, but at 55db (background levels) it still lights up the -30dbu lights. And it's only with fine gain controls on all the amps that I can get...
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    I'm sorry you've lost me. How can you be certain...

    I'm sorry you've lost me. How can you be certain that it was working properly, but also be uncertain as to the levels? The latter determines the former.
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    From post # 22 The first level is -30db...

    From post # 22



    The first level is -30db (see pic below)

    I come here to learn and, on rare occasion to debate something I see is in error. I try to do that in a somewhat diplomatic manner...
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    Red herring! JR's Krell amp has XLR inputs so the...

    Red herring! JR's Krell amp has XLR inputs so the voltage difference (between the dbx and amp) was an incorrect assumption on my part (this was discussed earlier in this thread).

    However this (as...
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    Are you suggesting that the quote from Rane is...

    Are you suggesting that the quote from Rane is incorrect? If so please enlighten me. Lets avoid the straw-man argument please - correct what was said, don't just discredit who said it.

    Can you...
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    From Rane's web site on setting sound system...

    From Rane's web site on setting sound system level controls.

    http://www.rane.com/note135.html
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    Hey JR, thanks for chiming in with a bit of more...

    Hey JR, thanks for chiming in with a bit of more info. :)

    As for doubting the gain structure wasn't contributing to the degradation in sound quality... well all I can say is that the lights on...
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    The issue is not over driving the power amp. This...

    The issue is not over driving the power amp. This quote below from JR tells us all we need to know. IE gain structure was not set up correctly - end of story. Now without more details I can't if...
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    jerry_rig said he was using an amp without gain...

    jerry_rig said he was using an amp without gain controls, which I assumed to be a consumer amp. If it was a pro amp, then my comments don't apply. However assuming JR was using a consumer amp, we...
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    Well if it does, there is no mention of it in the...

    Well if it does, there is no mention of it in the manual.

    And while the auto EQ function is far from perfect, it's not a bad starting point. Of course if you have better measuring equipment, then...
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    Sure you can, but since it's done in the digital...

    Sure you can, but since it's done in the digital domain, it's unless for setting up correct gain structure (unless you already happen to be in the ball park). IE it does nothing to reduce the noise...
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    Yeah, it's impossible to set up correct gain...

    Yeah, it's impossible to set up correct gain structure on the dbx if your amp doesn't have gain controls. That might account for the poor performance.

    Then again I cross to a sub at 80hz so I...
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    Just a thought, but did you have the gain...

    Just a thought, but did you have the gain structure set up correctly when using the dbx? In other words, when listening to music were you lighting up some/most of the input & output LEDS on the unit?
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    Thanks AB, these guys are winning me over as...

    Thanks AB, these guys are winning me over as well. While they do give up a few tricks to the MR's they really do have more detail. Hard to believe the sound coming out of these is from the 1940's....
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    Not a lot of love for the old PA eh... Well...

    Not a lot of love for the old PA eh...

    Well while I don't have anything to compare it to, I will say I'm very satisfied with mine, for the price I payed - $230 USD (used) with a behringer...
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    For home use 300hz is no problem for the 288 as I...

    For home use 300hz is no problem for the 288 as I understand it - provided that the horn will load the driver down that low.

    Bill (from GPA) told me they (do/can) verify the correct installation...
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    Well after a bit of fiddling around with eq,...

    Well after a bit of fiddling around with eq, delays and x-over points, I've gotten these intergrated a lot better.

    I want some time with them before I say more, but I will say they are remarkable...
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    I wanted to post a follow up as I've finally...

    I wanted to post a follow up as I've finally gotten around to installing these. :D

    Backing up a little though, I think I've identified the drivers as 288 RWB's due to the word "Hollywood" that...
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    I'm using my current horns in a three way system,...

    I'm using my current horns in a three way system, so a 300hz horn is preferable. In fact since I'm using a steep 24db/oct x-over I'm pushing my current horns MR-64 to 400hz. This is for home use of...
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    Thanks Earl! According to the dimensions it's a...

    Thanks Earl! According to the dimensions it's a 1003b horn. No wonder these things weigh a ton as they are considerably larger than the 1005b's.
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    Is it possible that these are actually 1003...

    Is it possible that these are actually 1003 horns? When browsing pics of the 1005b's mine look larger relative to the throat. Also these were used as public address horns in a railway station so it...
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