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The Klipsch Audio Community


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About CANT

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  • My System
    Technics SL1800 w/M5G arm & wires
    Nakamichi MR2
    Marantz CD5005
    Marantz NA7004
    Technics SU9070 *backup
    Technics SH9010 *backup
    Nikko EQ 20
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    McIntosh C27
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    Technics SL1301
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    Klipsch Heresy Inspired 2-way (K703/D202Ti & K28E)

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  1. Ok, so over time I have ended up with schematics for the 310, 942 & 904. I would still like info on the KPT325 if any one has one? I'm pretty sure it is identical to the 904 but has an additional resistor to pad the HF output a bit (2 or 3 ohms).
  2. I saw your thread about that! I've been wanting to design an adapter that could be 3D printed to more-or-less to the same thing! I have had ZERO time to try and tackle that idea though...
  3. Have you tried contacting Klipsch directly? An off the shelf comparable woofer would likely be cheaper but Klipsch does sell replacement parts for their speakers and the K48EP (121534) is used in current KPT models. And the K34 (a dressed up version of the K33 used in the CWII) would work in a pinch though if i remember correctly it is like 2dB less sensitive. The K48(4ohm)/K45(8ohm) are basically pro versions of the original K33(4ohm)... fundamentally I would consider them very similar, though being designed for pro lines, they are more sensitive and built to handle more power. Their wattage handling is not a function of their bass output however? In fact the K33, by design, actually has better low end response but that ability is of no use in the pro market where the 301 would likely never see signal below like 50Hz? I've attached an old scan of the spec sheet for the K1545/K1548 which might be of some help if you want to source a replacement from an aftermarket supplier? They early versions of the 45 & 48. Klipsch K-1545_K-1548.pdf
  4. Not in person? In some photos of the older molds you can actually see where they filled in the notch/cutout for the woofer... P.Audio also makes the horn lense for the K107Ti/K100Ti/K771 They also supply several drivers such as the K68A/K701G/K71G used in the Reference & KP/KPT lines, the K70G used in the FIII & various KI/KPT models and the K69A used in various KPT models...
  5. My guess is it is not. The K70G used in the Forte III is 8ohms. If they didn’t bother messing with the FIII I’m not sure why they would mess with the CWIV?
  6. The thread insert is molded into both but the insert itself is slightly different... you have to remember these were likely made years apart, with the K704 being older, things change over time. I’ve personally seen 3 variants of the K703 ranging from the KLF/CF days to the more current applications. The mounting screw holes on the 2510 are slightly larger and tapered but I do not consider that much of a difference?
  7. I've come to the conclusion that I am never going to use these but there has been a lot of interest in them with the advent of the Heresy IV. The K704 are from an older KP series though I do not remember which model exactly. The 2510's are the same horn without the 12" woofer notch/cutout... so you'd have to use them in a DIY build or mod them to use them in a klipsch cabinet. $50 +shipping for either pair
  8. PH-2510 = K704 I own both. No difference other than the notch/cutout for the 12" woofer. If you wish to replace the K701/K53Ti in your HIII or CWIII with a K704/DRIVER then expect to modify or replace the HF/MF network. I have a single CWIII that hangs out in my garage for mono duty. A while back I did play around with installing a K704 with a few different drivers just for fun... none of them sounded right or looked right when analyzed. You can swap out the Ti diaphragm for the old phenolic style in the K53. A few forum members have said they actually prefer this to the Ti? I found the difference negligible in my testing.
  9. I have been wanting to see that driver for a while now, thank you. My initial guess would be that, while Klipsch could have a diaphragm made for their use, it would be more cost effective to use the CDX1-1748 as is... and data sheet looks like it would fit the bill without alteration? I've also heard good things about this driver on other forums. I had originally thought the K771 was a B&C DE7 but the Celestion CDX07-1075 does look a bit closer in some images? They could very likely be made in the same plant by a contracted supplier though?
  10. You know the funny thing is that Paudio says it's a diffraction horn? It's hard to see in the brochure but in person you can see where they have filled the woofer notch/cutout.
  11. HIII and CWIII both use the K701 exponential horn w/ the K52Ti (16ohm) driver/motor
  12. Do you have non cropped version of this photo?
  13. As a possibly relevant side note: I am using 315LF's and not 904/940's so according to the active literature we've been discussing I would need to attenuate my HF -2dB, which I originally did when I started playing around with this setup by inserting a single series resistor prior to the + input of the network. I considered this solution simple and effective for what I was attempting and this method appears to be commonly used in current Klipsch networks. As an example this Jubilee/402 network supplied by Roy allowed the owner to insert a value 0-4ohm (0 to -3dB) inbetween the network and the K69A driver "to taste". In any case, I found that the -2dB suggested was not quite enough and end closer to double that using a 5ohm resistor. This experiment would make me wonder if those using the 904/940LF might not want to try using a 1-2ohm resistor (-1 to -2dB) in the same manor.
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