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I'm a bit puzzled by the passive compensation filter part of this project, appreciate if someone could set me straight.My goal is to simply have reasonably good audio on my computer desk when I'm using the Mac -- and, of course, to have fun building one of Danny's speaker designs.The source will be the Mac, for amplification I'll use an inexpensive Dayton DTA-120 https://www.parts-express.com/dayton-audio-dta-120-class-t-digital-mini-amplifier-60-wpc--300-3800 or comparable Class-T unit.Clearly, I've no high end interests with these modest requirements and a commensurable modest budget.For this usage and configuration, is a filter necessary, and if so, what kind do I need?
Danny, just for those who will likely ask, did putting a platinum cap in there in place of the sonicap (or a bypass on the cap in in the kit) improve things enough to justify adding a few dollars to the project? I would think that with a single driver speaker with the minimal parts count here that the type/quality of the few parts that are used would make an even bigger difference than with maybe some of the more elaborate designs? I know this kit is aimed at being a bang-for-the-buck kind of deal, but I figured it wouldn't take long for somebody around here to ask.
Mike, not to waste veneer, if you are going to build a pair for yourself anyway, why not mock them up without veneer for her to demo, then finish as appropriate afterward, or would she be hoping to take them with her after the demo?RAW, those lifestyle speakers look very cool, but I was distracted by the sweet looking amps! Dodds, I presume? Any closer pics and/or details?DAVE!!!!!! I have to send you an email later. Danny, I read the webpage for the new drivers quickly, and it stated these are good in OB as midwoofers. Do the highs roll off to much in OB to run full range in that configuration or is it something else?. . . and, yep, paging JP to the courtesy phone. Seeing some of his past projects, these look like his kind of cool.
Al, I have been thinking about these: And I have compared these to the old 871's. These new drivers sound much better. I was stunned by just how good they sound.
I'm a bit puzzled by the passive compensation filter part of this project, appreciate if someone could set me straight.My goal is to simply have reasonably good audio on my computer desk when I'm using the Mac -- and, of course, to have fun building one of Danny's speaker designs.The source will be the Mac, for amplification I'll use an inexpensive Dayton DTA-120 https://www.parts-express.com/dayton-audio-dta-120-class-t-digital-mini-amplifier-60-wpc--300-3800 or comparable Class-T unit.Clearly, I've no high end interests with these modest requirements and a commensurable modest budget.For this usage and configuration, is a filter necessary, and if so, what kind do I need?The compensation filter compensates for baffle step loss. It doesn't matter what you use it with. See complete kit pic:
Mike, just pull the wire through the hole and strip the tip of it. Then use some alligator clips to temporarily connect it to your speaker cables. Sure it won't sound quite as good, but it will play.
One of mine is playing as I type. Threw a box together, put in some padding, built a quick network, and it's now playing a Brahms sonata. The box is held together with duct tape and rubber bands, the port is the wrong length, but it still plays a very beautiful violin- kills the little Polks that usually sit by my speakers as far as tone. Tomorrow is the day for glue up and soldering. Scott
