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Preparing to build my first speakers and have some questions

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  • #31
    Originally posted by GoodMusic View Post

    Full range-ish strictly for 2 ch listening in a non-WAF area (non-WAF = room treatment). May add a sub or 2 somewhere down the line for the bottom octave.



    Yup. I want to do a 3 way stand-mount for the bedroom. Also, I can easily see myself getting hooked and building speakers just for ****!!s and giggles.



    I normally listen at ~65-72 at the listening position (~71-78 @ 1m). 90db is pretty loud for me (at listening position) and I have no NEED for more but would like to know that I have more available if I get in the mood and want to crank up a song or two. I currently use an NAD C370 that's rated at 120w/ch but measured 170/ch by Stereophile. Future amplification is (power-wise), whatever I need. BUT, I'd love to have some freedom as some of the amps I'd like to try are relatively low powered (I'm speaking strictly SS).



    For my own listening enjoyment, they'll be located wherever I can get them to sound best. I can move them out of the way if needed. The area is open (the entire downstairs of a small townhome) and I'd like to be able to get some volume out of them if I have a party.
    I tend to build speakers, and then later rob parts off of them to make something different. After all these years, I currently don't have a finished pair. (That will change soon.) I've cut towers in half to make a small pair of speakers. I've modified 5.25" 2-ways to make the 6.5". I've ruined a lot of half way decent boxes, but I have fun!

    For your man cave, I think the second woofer, might be overkill. Nothing wrong with overkill, but the box will be heavier, and more difficult to move around, even during construction. I'd pick an 8", or 10" woofer that can provide a very low f3, in a box size that looks right to you.

    Full, or close to full BSC will likely be what you need.

    You have plenty of power, so overall speaker sensitivity is not important.

    The x-over is the heart of the speaker. I'd suggest keeping it external so that changes can be made easily. My x-overs are on the floor, connected with jumpers. (Soon to change.)

    When you go to a sub-woofer arrangement, a lot can change. Nothing has to though. The mains can be much smaller, and perhaps 2-way designs. Bass management plays an important roll, and it can be frustrating to get a really good blend.

    It sounds like you have the bug, and are going to have a lot of fun!
    Last edited by rpb; 11-24-2019, 12:19 PM.

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    • #32
      Originally posted by rpb View Post
      The x-over is the heart of the speaker. I'd suggest keeping it external so that changes can be made easily.
      I was thinking the same thing. Don't want to have to pull drivers out every time I want to change something. Even if I get to a "golden place" and stop changing it, I'll probably keep it external (just make a nice box for it).

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      • #33
        Originally posted by Drummer View Post
        Good music, I have a 3 way with a single rs225p, and it does everything that you described wanting. If you have two of them on the bottom in parallel, they could blow you out of a room, if 90 db is LOUD to you. The great thing about a mtmww using them is you will barely be running your amp at your volumes, which equals low the, and the speaker distortion will be much lower because they will barely be breaking a sweat.
        Out of curiosity, what do you have the rs225ps crossed over at?

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        • #34
          I think the non P versions dig deeper! I'd sim the response to be sure.

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          • #35
            RPB is correct. The Aluminum rs225 goes lower, but is an 86 db driver, while the rs225p is a 90db driver. My 225p is crossed at 800hz. Where are you located, GoodMusic? Glenn.

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            • #36
              I'm in Atlanta.

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              • #37
                There is a really good thread at diysound. Uses the 8424 and LOVES it with the RS225 crossed about 600hz. I just bought a pair of the blue Thiel 8424's myself.

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                • #38
                  In a wmtmw, I have the rs225p crossed at 250hz. to a pair of rs150p, which hand off around 2.6k to an xt25tg. That's a bit high for the xt25tg, but that's where it sounded best to my ears. It's an active design so things can be changed without all the fuss of a passive crossover. No complaints in regards to good clean plentiful bass from a quad of rs225. The neighbors on the other hand ...
                  http://techtalk.parts-express.com/fo...khanspires-but
                  http://techtalk.parts-express.com/fo...pico-neo-build
                  http://techtalk.parts-express.com/fo...ensation-build

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                  • #39
                    Originally posted by ontariomaximus View Post
                    There is a really good thread at diysound. Uses the 8424 and LOVES it with the RS225 crossed about 600hz. I just bought a pair of the blue Thiel 8424's myself.
                    He's using it without a tweeter and FR is crazy good almost to 20K! Wow. As for the Thiel version, note that T/S params are just a smidge different from the 8424. I'll be getting a CLIO soon and will figure out exactly what they are. The RS225 look pretty much like what I'm looking for. I've narrowed my choices down to them and one other woofer.

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