2435 HPL- 2 way 750hz

[kartsmart]

I am thinking of doing a 2 way system for home audio use.
Could the 2435 HPL be used down to 750 hz or lower with good results ? If so what horn could be used ?
I will start with these simple questions first to see where it will go.
thanks

[Zilch]

From my experience, 750 Hz is too low, though it might work on some horns, like 2352 or Harman Consumer biradials. Giskard recently suggested the drivers themselves are good down as low as 650 Hz; I just haven't tried that. 4338, for example, is crossed at 750 Hz with 435AL (2431H equivalent).

I'm currently running 2435HPL on PT-H1010 at 800 Hz, and they sound guite nice. At least one other member here is using that combination with good results:

http://audioheritage.org/vbulletin/s...808#post143808

Start with that, perhaps, using the Timbers "Key" compensation filter and a frequency adjustable active crossover. It'll get the answer for you toot sweet.

Those waveguides are inexpensive, $94 apiece. 2352 is $300 list, and you'll pay more like $450 or more each for the Harman Consumer horns, if you can get them at all.

[Robh3606]

Hello Zilch

Gregs filter is tweeked for a particular horn/driver combo. It's not optimized for the PTH1010. It really needs to be fine tuned for the driver horn combo it is used for. It's a great jumping off point however you won't get the best performance out of that combo using it as is. It's not fair to Greg to use it beyond what it was engineered for without pointing this out.

Rob

[spkrman57]

Crossover points are best derived after horn/driver analysis.

Ron

[Zilch]

It's not fair to Greg to use it beyond what it was engineered for without pointing this out.

Thanks, Rob, for reiterating that.

I think it's pretty clearly shown in the link I provided....

[DJ Vincenzo]

wow a lot of peeps have the 2435's. arent they 2 lous for home use?

[Robh3606]

Hello Zilch

I have been playing around with Crossover Shop and working on a crossover for the 2435 with existing horns I have on hand. I am using the PTH1010 in my active set-up so I decided to see what an passive network would look like using Gregs filters and notes I made from Project May. It looks good so far on paper. Could sound like crap so I have to actually build it and get my Le-14H-3'S into cabinets so I can measure them up and see what happens on the other end. I woudn't go to 750Hz on this horn/waveguide that's for sure.

A reference on how these networks are put together from Project May


Rob

[Zilch]

wow a lot of peeps have the 2435's. arent they 2 lous for home use?

I presume you mean "too loud."

The answer is "No."

If you read and understand Rob's posts, you'll see that 10 - 15 dB of the compression driver's SPL capability is consumed in performing the requisite compensation to achieve the desired frequency response with constant directivity horns/waveguides....