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Cathedral Guitar

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Posts posted by Cathedral Guitar

  1. So I am wanting to raise the height of my La Scalas, and I have read all the previous posts on the subject, but am still confused about how to move forward. If I simply want to raise the listening level of the speakers w/o doing a riser port, am I correct in understanding that the best way is to raise the speakers without losing bass response is by putting "solid wood" underneath?? Not sure if this means to avoid plywood, or to fill the ENTIRE space beneath the speaker with wood. Like if I wanted to raise it 10" or so, I could cut up 2x sheets of 3/4" plywood into 2x2' sections and stack them? For 3x speakers I would need 6x sheets of plywood -- and it seems like a bit overkill, and I don't see anybody else doing this, so I am obviously misunderstanding the concept -- or not??? I could also cut up 8x8 posts into 2' sections, and then I would really have some beefy "solid wood" underneath.

     

    As an aside, is putting speaker vibration dampening material like sorbothane between the speaker and the stack of wood a good idea?

     

    So basically, I'm just asking for the best way to raise the height of the La Scala, in a simple, straightforward way, while avoiding any loss of bass from them sitting on risers, and thanks very much in advance for any thoughts you might have.

  2. Thanks for this!! I do have a Tascam 4-track R2R, and could try running things to tape in 3-ch. Or I could just just run the outer 2 L/R speakers in stereo, and then run the line out to a separate receiver with a mono button, and just run that center channel in mono. Both are pretty easy to set up try. Of course, I'd be tempted to run the center channel through a multi-band tube compressor before hitting tape.

  3. Thanks everybody for all the great info!! Do you understand PWK's comments on on 4-Channel in "Dope From Hope" as talking about configuring Quad with 3x in front and 1x in the rear? I have a bunch of Quad stuff, and have never even thought to try that, as all the outputs label the other 2 channels as Rear L and Rear R. I wonder how he would configure Quad with 3x in front?

  4. Can anybody tell me what a center channel system looked like in 1957? Pretty sure nobody made a 3-CH receiver back then. Was it Stereo + 1? Was it Mono with 3x separate amps? Was it for home stereo, or for theaters and other professional installs? Trying to figure out what that 3-speaker system was used for in 1957, and how they powered it. Thanks for any thoughts,

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  5. I wish you would have put as much thought in the analogy as you did in the punctuation, as nobody has ever claimed that the color of the wire jacket made a sonic improvement, but rather it is much more like the improvements are due to heaver gauge wire (i.e., a bigger engine) better quality materials, as well as better engineering -- arguments which hold sway in automotive sales as well as most every other industry. Any car can get you from point A to point B, just like any wire can pass a signal, but the most expensive is not always the fastest, and the fastest is not always the best. 

  6. Thanks kindly for the replies. I come from the Pro Audio world, and when we did remote choral + symphonic recordings, our mic cable of choice was Canare, so I have a lot of confidence with their products. I happen have some Type 4 on hand, but will also look into getting some Canare 4S11. Thanks very much for the thoughts and recommendations!!

  7. Thanks, y'all: John, just to be clear, I'm talking about the benefits of replacing the internal wiring on the La Scala. Type 4 is not crazy expensive for me, as I think I can rewire the La Scala for under $40 a speaker. But if I upgrade the internal wiring, then I might be tempted to upgrade the crossover terminals while I'm in there!! Enter the rabbit hole.

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    • Haha 1
  8. Yeah, I was wondering if the change was made because it was really was an inprovement from OEM speaker wire, or if it was just in the realm of aesthetics/cosmetics/marketing. Since I'm upgrading the tweeters to SMAHL V2 -- and Klipsch has upgraded both HF/MF horns as well -- I was wondering if I should follow their lead and upgrade the 1970s wiring while I'm at it.

  9. Does anyone know what process Klipsch used for deciding on using AQ type 4 in the new La Scala? Does this move by Klipsch suggest that upgrading to Type 4 would improve the vintage La Scala? Am installing 3x new tweeter horns, Dave's V2, and am thinking of upgrading to Type 4 while I am in there. Thanks for any thoughts.

  10. My APT 50 is from October of 2001 / Made in USA. Do you think that was made before they started making the bad ones offshore? Btw, the previous owner of my LS pair was a film sound pro, with a few big movie credits:

     

    <https://www.imdb.com/name/nm0385406/?ref_=ttfc_fc_cr76>

     

    Cathedral Guitars is the worlds leading maker of multi-string classical harp guitars, so let me know if you need a 7-, 8-, 10-,  or 11-string harp guitar!

  11. Thanks for all the replies. My tweeter driver has external threads, so it will not work with the 150 horn. Is there a horn for it, or an adapter that I can drill out and bolt to the already modified  Klipsch tweeter horn? Frzninvt, would you rather have a recent AL-4 or an un-recapped 1977 AA? Those are my current options. Regarding the lamp rolling, I just received the ad below for a brand new tape deck, and was surprised to see that it was not at all the kind of tape deck I was imagining!

    Screen shot 2019-01-14 at 9.44.36 AM.png

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  12. Thanks, Y'all: Bruce, I really like what you have done, and want to do something similar, but please let me ask you why you choose the APT-150? Did the original tweeter get blown? I can see that the 150 would not perhaps fit inside the cab. Do you like the sound of the 150? Do you know if the driver has external threads? I'm intrigued with the MAHL, but will go slow and listen to the recommendations. Btw., we just watched the movie Alice in Wonderland, which does inspire you to be bold and do impossible things!!

    • Like 2
  13. First time poster here. I'm upgrading 3x La Scalas from the late 70s, and have many questions for the community. My purpose is to use the speaker in a recording studio setup for playback along with either live drums, guitar, and bass. I love how lifelike the La Scala reproduction is, and jamming along with the records is going to be amazing. One of the LS is total stock with AA, and the other pair is recapped AA, but with blown tweeters. The guy tried a DIY mod by drilling out the tweeter horn and GLUING on an APT-50-2. So right now, one APT 50 is dead, and other one works but unglued and sits loose on top. 1) Is there an adapter to attach the externally threaded APT 50 to the stock Klipsch tweeter horn? I know it may not be worth doing, but I was thinking it would be better than no tweeter, or having a loose driver sitting naked on top of the cab. The stock LS needs recapping, so I bought what I think is a modern AK-4 crossover #116601 (pic attached). 2) I'm confused by the separate inputs for HF / LF on the crossover. Is this to allow bi-amping without an active crossover? Is there a way of telling if this is a LS or KH crossover?

     

    Right now I'm using it in a 3-channel in a surround mode on a thrift store Yamaha HTR-5860, and it sounds fantastic, even with just 1.5 working tweeters. Before that I had used a HK 730, which I love on other speakers, but on the LS it was too shouty. Also have various amps and a 1960 Telefunken EL84 tube radio to try. Am thinking of cutting up all or some of these LS and installing 511b horns, and I have already noticed liking the tweeter location much better above the enclosure, as if you are standing up, the stock tweeter height is too low. Lastly, 3) does anyone have a preferred tweeter replacement when comparing the DE120 MAHL vs Crites horn?

     

    Thanks in advance for any thoughts. Trying to do this DIY on the low end side of budget. The LS were a little less than $400 each.

    Stephen

    Screen Shot 2019-01-13 at 1.23.44 PM.png

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