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CBT36 Line Array has arrived!

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  • #16
    Re: CBT36 Line Array has arrived!

    Originally posted by czag View Post
    Not just using 1 of them. These use 72 per speaker, each one is putting out so little that it would probably be hard to strain them.

    Chris
    They can be driven to very loud levels!

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    • #17
      Re: CBT36 Line Array has arrived!

      Originally posted by rickcraig View Post
      They can be driven to very loud levels!
      Your variation of that design that you brought down here to houston was certainly impressive. It was on a smaller scale if I remember correctly, but it definetly did not sound scaled down.

      Chris
      Chris

      Goofing around since 2000.

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      • #18
        Re: CBT36 Line Array has arrived!

        I heard them two years ago when DK did a presentation at MWAF. Very impressive even with the sub off. Seemed any where you stood in the room it sounded as if you were in a "sweet spot". Even right up on them they were the same level as if you were 5 feet away, the "power shading" deal works!
        A mains
        The Ventures
        Open Invit8tions
        RSR
        Sound Troopers
        Acorns
        442
        DGBG's
        The Monuments

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        • #19
          Re: CBT36 Line Array has arrived!

          I got to hear them at RMAF. The room sounded pretty darn nice. The subs were integrated very well, and overall presentation was smooth. With such a small room, and such large speakers, standing out into the space, the result was pretty remarkable.

          I wish I could hear them in a more normal environment for such behemoths, like MY living room. I'm sure I would have liked a lot more listening time on them, but it was the last day, and we had so much more to see and hear. They were one of my favorite rooms at the show last October.
          R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
          Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

          95% of Climate Models Agree: The Observations Must be Wrong
          "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

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          • #20
            Re: CBT36 Line Array has arrived!

            AHH These things look incredible. I love the theory behind it, that's some cutting edge tech. I wonder if you could do something similar with some cheap buyout drivers like 8 of those Bazooka 5" for $4 each per tower (not sure about the tweets tho). I'm sure it wouldn't really compare though, since these drivers were designed for these speakers.

            So I noticed there's no crossovers, just shading resistors. I guess your amp needs to have crossovers, or have a separate one? I think it would be great if someone designed an amp for these speakers. One day there should be a kit with a DIY sub and amp too for like $4k that would be great.

            I was also thinking, if you were to make your own amp and used NL4s, couldn't you use two pins for HF & 2 for LF circuits? They are all independent wires right? You could maybe get a few of those Sure amp boards (or another clean, efficient amp), put together some passive XOs and add volume control. I think that'd be a good way to get past a horribly messy and complicated setup. Total output of 1250W RMS through 3.5" & .75" drivers is unheard of right?? haha oooh if only I had the monies...

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            • #21
              Re: CBT36 Line Array has arrived!

              DEQ2486 on sale here for $228 shipped:
              http://www.bhphotovideo.com/c/produc...igital_EQ.html
              Audiophiles listen to the equipment, not the music.

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              • #22
                Re: CBT36 Line Array has arrived!

                Originally posted by williamrschneider View Post
                While the kit cost seems high, there are other DIY offerings that cost significantly more.
                Also, one has to pay to pioneer new innovations. Dr. Keele shouldn't be working for free!

                Consider also the cost of the raw drivers. The mids alone are $650 for 36. I assume that the tweeters are similar. And then there's wood, too. And shipping is going to be a non-trivial cost, with all of those parts and heavy pieces of wood.

                So as a value proposition, it seems reasonable.

                Originally posted by williamrschneider View Post
                I'd love to hear the CBT36 because of the clever thinking behind the concept. I understand that they aren't going to be everyone's cup of tea though.
                Ditto.
                --
                "Based on my library and laboratory research, I have concluded, as have others, that the best measures of speaker quality are frequency response and dispersion pattern. I have not found any credible research showing that most of the differences we hear among loudspeakers cannot be explained by examining these two variables." -Alvin Foster, 22 BAS Speaker 2 (May, 1999)

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                • #23
                  Re: CBT36 Line Array has arrived!

                  From the link: System requirements:
                  . . . requires a DSP-based speaker processor


                  -- does that mean another $300-$500??

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                  • #24
                    Re: CBT36 Line Array has arrived!

                    Originally posted by mikec View Post
                    From the link: System requirements:
                    . . . requires a DSP-based speaker processor


                    -- does that mean another $300-$500??
                    Yes it does.
                    Audiophiles listen to the equipment, not the music.

                    Comment


                    • #25
                      Re: CBT36 Line Array has arrived!

                      Originally posted by mikec View Post
                      From the link: System requirements:
                      . . . requires a DSP-based speaker processor


                      -- does that mean another $300-$500??
                      No. It does mean, however, at least an additional $160 or so, shipped.
                      --
                      "Based on my library and laboratory research, I have concluded, as have others, that the best measures of speaker quality are frequency response and dispersion pattern. I have not found any credible research showing that most of the differences we hear among loudspeakers cannot be explained by examining these two variables." -Alvin Foster, 22 BAS Speaker 2 (May, 1999)

                      Comment


                      • #26
                        Re: CBT36 Line Array has arrived!

                        do these require a huge room?

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                        • #27
                          Re: CBT36 Line Array has arrived!

                          Originally posted by esprit View Post
                          do these require a huge room?
                          They really do, simply because they have a fairly large footprint. However, the RMAF room was pretty small, and they still sounded very good in there.
                          R = h/(2*pi*m*c) and don't you forget it! || Periodic Table as redrawn by Marshall Freerks and Ignatius Schumacher || King Crimson Radio
                          Byzantium Project & Build Thread || MiniByzy Build Thread || 3 x Peerless 850439 HDS 3-way || 8" 2-way - RS28A/B&C8BG51

                          95% of Climate Models Agree: The Observations Must be Wrong
                          "Gravitational systems are the ashes of prior electrical systems.". - Hannes Alfven, Nobel Laureate, Plasma physicist.

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                          • #28
                            Re: CBT36 Line Array has arrived!

                            Any word on if those raw tweeter assemblies will be available seperately? I'm sure they won't be budget priced but there aren't many options for a low compromise tweeter selection for line arrays. I've been looking for a few years mostly for various versions of the Peerless/Vifa/Tymphany BC25SCxx-0x or OC25SC75/65 (some of them buyouts) but I couldn't ever find a good deal even when discounted to 100 pieces. Now even the 3/4" Dayton tweeters aren't an option due to the increase in price from Neo speculation.

                            I already have 100 of the fairly decent Sammi 3-1/2 full rangers. I'd like to at least start on a design using dual mid lines in an OB format. Rick Craig recently posted an OB array on his forum that got me itching to do this again.

                            I'm hoping the CBT36 tweeters don't use neo but I'm guessing they do. Anyone know any different?
                            Thanks,
                            Aaron

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                            • #29
                              Re: CBT36 Line Array has arrived!

                              Originally posted by mikec View Post
                              From the link: System requirements:
                              . . . requires a DSP-based speaker processor


                              -- does that mean another $300-$500??
                              Yes, $300+ depending on what unit you like.

                              Comment


                              • #30
                                Re: CBT36 Line Array has arrived!

                                They really do, simply because they have a fairly large footprint. However, the RMAF room was pretty small, and they still sounded very good in there.
                                Pete - sorry I missed meeting you at the RMAF. I may have been away when you visited our room. I set up the DEQX for the system and appreciate your kind comments.

                                I would disagree that the CBT-36 needs a large room to perform well. You can actually listen to them very close up and still have very good imaging. But I do agree a larger room is best for showing the true capability of the system due to the wide dispersion and high output.

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