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  1. Replies
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    I’ve been there numerous times over the decade....

    I’ve been there numerous times over the decade. What seems like a good idea on paper doesn’t always work out that way in practice... I’m sure the back room at JBL and every other major manufacturer...
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    I am using a pair of the TD-4003 drivers and...

    I am using a pair of the TD-4003 drivers and TH-4003 (clone) horns... an excellent driver and combo. I do not think that TAD are still producing this driver or if they still are, I doubt they will be...
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    The first two are technology types, the third is...

    The first two are technology types, the third is a specific iOS app.

    RTA can be a dedicated machine with a CRT or LED screen or it can be part of a computer program or phone/tablet app.

    Here is...
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    I didn't dive into the full analysis that LARSA...

    I didn't dive into the full analysis that LARSA offered. When I saw the very narrow peak at whatever frequency it was, can't remember now, I popped my Meyer Sound PEQ in the system and dialed in the...
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    Boy, are we off topic!

    I understand where you are coming from and agree with your overall premise, that we typically intentionally or unintentionally tweak our DIY endeavors to suit our tastes and the effects of our...
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    No, the 3800 is just a 3600 with a Dolby FM...

    No, the 3800 is just a 3600 with a Dolby FM circuit in it. I virtually never used the Dolby bit.

    The way my set up was, 3800 to the pair of AudioArts 2100A Crossovers, from there the signal went...
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    A couple of lifetimes ago when those Culver City...

    A couple of lifetimes ago when those Culver City built Marantz units were new, I had a 3800 preamp and 510 amplifier. I used them in a tri-amplified system with a pair of Audioarts active...
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    I have recently taken level measurements of the...

    I have recently taken level measurements of the various drivers to get them within 0.1dB between the left and right channels. After doing that and listening a bit more critically, I made my first...
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    Unfortunately I don't remember. I did all the...

    Unfortunately I don't remember. I did all the design work over a decade ago! If I fire up CLIO, I'll measure it for you. I believe I tuned it at around 40Hz.

    If I could have lived with a larger...
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    The answer is in post 2 and quoted in post 3. ...

    The answer is in post 2 and quoted in post 3. The answer in mm is 104.8mm diameter by 266.7mm long.


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    While in principle I agree with your logic, you...

    While in principle I agree with your logic, you fail to take into account that no sophisticated measurements were taken. What effects did the network have on impulse response, phase response,...
  12. First, I’d like to say I totally understand what...

    First, I’d like to say I totally understand what Clark is getting at. A very simple “full range” speaker powered by a very simple system can be very magical and give you a clear window into the...
  13. There is so much to unpack here. I am not going...

    There is so much to unpack here. I am not going to dig into each piece of gear you mention, but will give you my opinions based on my personal experience. My first active system was back in the late...
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    Maybe he likes quotes? ;) I wouldn’t make too...

    Maybe he likes quotes? ;) I wouldn’t make too much of it.

    Do you like the speakers? Ultimately that’s how I judge a speaker. I either like ‘em and they’re keepers or they aren’t.


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    I still have a roll, but for those interested,...

    I still have a roll, but for those interested, the phone number for Wrap-on is 708-496-2150 and the product is item number 16550. This is for the 24" wide, 1" thick roll that is 50' long. If anyone...
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    I have performed objective and subjective tests...

    I have performed objective and subjective tests on fiberglass and polyester “poly fill” and the polyester, while much easier to work with is significantly inferior to the fiberglass material from a...
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    I bet in addition to personal preference, the...

    I bet in addition to personal preference, the woofers being used will also affect your results. Some woofers require more back EMF control from the amp than others.


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  18. Thread: Vintage VOT

    by Mr. Widget
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    Sure, I have two in my basement... just kidding....

    Sure, I have two in my basement... just kidding. :D

    I’m sure that there are collectors who have saved some.


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    I am not personally familiar with the Altec 299...

    I am not personally familiar with the Altec 299 drivers... by all accounts they are very good, but to get the most out of them you’ll need to get a compatible horn with a low cut off frequency, you...
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    Road trip! Napa Valley is near by and is...

    Road trip!

    Napa Valley is near by and is beautiful in September/October. Come on up.


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    Welcome to the LH Forum. The parts you...

    Welcome to the LH Forum.

    The parts you mention are potentially somewhat compatible. Hooked up properly and not driving the amp excessively, you should be able to play around with these parts and...
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    I think most of us have been there. Because of a...

    I think most of us have been there. Because of a similar experience I will not use T nuts. I use brass threaded inserts. I’ve had much better luck with them.


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    Thanks... man-years is more like it! :D ...

    Thanks... man-years is more like it! :D

    Actually, while the veneer is from a Californian tree, I purchased it from Oakwood Veneer in Michigan. They are extremely helpful. I exchanged numerous...
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    :rotfl: While I think on-line speaker videos...

    :rotfl:

    While I think on-line speaker videos are pretty much pointless exercises, I also don't have any equipment that can do that.

    Now, that said, if you are in the area visiting, shoot me a...
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    Thanks everyone for the compliments! Sitting...

    Thanks everyone for the compliments!

    Sitting here listening to them does make the hours and hours of sweating the details seem worth it. Now there is only the memory of the smell of the Claro...
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