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Best mid for RAAL 140-15D with passive crossover

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  • #1

    Best mid for RAAL 140-15D with passive crossover

    So i got my RAAL 140-15D and have been in search for the mid that can keep up with it...and after reading various commercial and DIY i have come up to following drivers...i am keeping these as open baffle more like philharmonic speaker...

    Accuton Mids

    Scan Speak 18W

    Neo 10


    I currently have H-frame AE IB15 from 150hz and below using active crossover...and i want to pass 200 and up to RAAL and Mid combination....
    i want to crossed around 2.5-3.5 KHz onwards to RAAL.....any input any suggestions.....

    V
    Tags: raaaaaaaaaaaaaaal, raal, to raal or not to raal
  • #2
    Re: Best mid for RAAL 140-15D with passive crossover

    i would suggest checking with John at AE on which TD6 he would recommend ,there are a few other guys on here that have experience with RAAL and Accoton , i would wait until they chime in before making any decisions
    donc

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    • #3
      Re: Best mid for RAAL 140-15D with passive crossover

      I'd consider a four way. FYI, Philharmonic speakers are not open baffle until @ 650hz, making it a much easier load on the mid than 200hz.
      "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

      http://www.diy-ny.com/

      Comment

      • #4
        Re: Best mid for RAAL 140-15D with passive crossover

        From 200hz and up you can use more or less any 7" driver. The SB Satori tested by Zaph would be an excellent candidate. The SS 18W and the Excel W18NX are two other that would work well IMO.
        "It is only Scrooge McDuck and others with a personality disorder who have money as their goal"

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        • #5
          Re: Best mid for RAAL 140-15D with passive crossover

          I am also looking at Accuton mids or SS 18W....question is how to design the passive crossover for them....anyone have the raw data i can punch for SS 18w and raal in the excel sheet and play around...

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          • #6
            Re: Best mid for RAAL 140-15D with passive crossover

            If you want to utilize the inherent sensitivity offered by the RAAL, stick with the higher sensitivity mids.

            Audio Technology makes an excellent dedicated mid.

            C-Quenze 15 H 52 12 06 SDKM

            It has a unique surround that extends the cone profile and offers amazing extension. 91dB sensitive too. We're using it and the Accuton Neo mid paired with the 70-20XR and the results are simply incredible.

            AudioTech, Accuton, Neo10 would be my choices.
            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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            • #7
              Re: Best mid for RAAL 140-15D with passive crossover

              Originally posted by Pete Schumacher ® View Post
              If you want to utilize the inherent sensitivity offered by the RAAL, stick with the higher sensitivity mids.

              Audio Technology makes an excellent dedicated mid.

              C-Quenze 15 H 52 12 06 SDKM

              It has a unique surround that extends the cone profile and offers amazing extension. 91dB sensitive too. We're using it and the Accuton Neo mid paired with the 70-20XR and the results are simply incredible.

              AudioTech, Accuton, Neo10 would be my choices.
              Thanks pete,

              somehow i got a great deal on brand new pair of Scan Speak 18W and got it ...now i need to fgiure out the passive crossover between these two....

              Comment

              • #8
                Re: Best mid for RAAL 140-15D with passive crossover

                Rick Craig may be able to help you out, he's probably worked with both drivers before.
                "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

                http://www.diy-ny.com/

                Comment

                • #9
                  Re: Best mid for RAAL 140-15D with passive crossover

                  Do you have an Omni mic or DATS?
                  "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

                  http://www.diy-ny.com/

                  Comment

                  • #10
                    Re: Best mid for RAAL 140-15D with passive crossover

                    Originally posted by Face View Post
                    Do you have an Omni mic or DATS?
                    I am waiting for this to get in stock

                    Just a moment...
                    http://www.minidsp.com/products/acoustic-measurement/umik-1


                    moment i get it i am buying it

                    Comment

                    • #11
                      Re: Best mid for RAAL 140-15D with passive crossover

                      i got this one...

                      ScanSpeak Revelator 18W/4531G 7" Mid-Woofer 4 ohm
                      http://www.madisoundspeakerstore.com/scanspeak-woofers-6-7/scanspeak-revelator-18w/4531g-7-mid-woofer-4-ohm/
                      7" Revelator mid/woofer features a non-resonant cone and dust cap structure, dynamic linear suspension, SD-1 magnet system, "Grasshopper" cast chassis with maximized air flow and resonance terminating mounting system. Less resonance in all structures, lower compression and higher linearity, faster termination of excess energy and higher sound pressure capability. The 18W/4531G should have an F3 of about 65Hz sealed and 40Hz vented.



                      hows this with RAAL.....???

                      Comment

                      • #12
                        Re: Best mid for RAAL 140-15D with passive crossover

                        Originally posted by thisisvv View Post
                        I am waiting for this to get in stock

                        Just a moment...
                        http://www.minidsp.com/products/acoustic-measurement/umik-1


                        moment i get it i am buying it
                        With the primary inductance of the RAAL transformer and your desired XO points, you might get away with something as simple as a single cap and padding resistor for the RAAL. That will get you a second order HP filter and likely a LR2 acoustic response. The 18W will likely be acoustically behind the RAAL whereas the shallower NEO10 or AT mid are basically lined up already.
                        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.

                        Comment

                        • #13
                          Re: Best mid for RAAL 140-15D with passive crossover

                          Originally posted by Pete Schumacher ® View Post
                          With the primary inductance of the RAAL transformer and your desired XO points, you might get away with something as simple as a single cap and padding resistor for the RAAL. That will get you a second order HP filter and likely a LR2 acoustic response. The 18W will likely be acoustically behind the RAAL whereas the shallower NEO10 or AT mid are basically lined up already.
                          that is a great start...atleast easier to build...i think if i am using LR2 might have to change phase connections of one of the drivers....any suggesstions for a good demo software.....which can do simulation...

                          Comment

                          • #14
                            Originally posted by thisisvv View Post
                            I am waiting for this to get in stock

                            Just a moment...
                            http://www.minidsp.com/products/acoustic-measurement/umik-1


                            moment i get it i am buying it
                            I'd splurge for an omnimic.
                            "He who fights with monsters should look to it that he himself does not become a monster. And when you gaze long into an abyss the abyss also gazes into you." Friedrich Nietzsche

                            http://www.diy-ny.com/

                            Comment

                            • #15
                              Re: Best mid for RAAL 140-15D with passive crossover

                              Originally posted by Face View Post
                              I'd splurge for an omnimic.
                              The 140-15 can be a little tricky to work with. You'll need measurement capability to make the best of your design.

                              Comment

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