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  1. Joe Ku

    Impedence in MTM designs ... need clarification regarding parallel or series wiring

    The D3 is a 4 ohm speaker but has a pretty benign impediance curve, your Yamaha will handle it just fine to very loud levels. Don't worry about it.
  2. Joe Ku

    Who burns their home movies to DVD?

    To convert to Mpeg2 I use TMPGenc, it is cheap ($50) and one of the best encoders out there. They also have an authoring program now, they want $100 for the authoring/encoder combo. I don't know how good the authoring program is but I think they have a free trial version if you want to try it...
  3. Joe Ku

    Onebox Mediacenter

    The 1GHz C3 processor is not about raw speed, it is about being quiet. The C3 generates very little heat and consumes very little power, allowing it to be cooled silently, and allowing a small silent power supply to power the whole rig. go over to www.mini-itx.com to get more info and see what...
  4. Joe Ku

    Music Server Questions

    Also I would compress rather than just store as wav, a 40gig drive can hold 1000 wav files or it will hold 1600 losslessly compressed songs (which are still perfect copies), it is definitely worth the extra effort.
  5. Joe Ku

    Music Server Questions

    EAC is the best ripping program out there right now, it lets you know if there were any errors that it couldn't correct and lets you listen to the 3 second part of the track with the error so you can decide if it is acceptable. It also supports a bunch of different encoders and compressors for...
  6. Joe Ku

    My DIY Sub project

    Yes use the flared port. You don't always need one though, it depends on how fast the air is moving through the port. So if you don't know for sure it is better to use flared ends. There is no downside to using them.
  7. Joe Ku

    My DIY Sub project

    Ported will go much lower and louder with the drivers you are looking into, and works much better for HT while still sounding good with music. I must admit that sealed does sound better for music but will have a lot of trouble hittind the really low notes that HT demands. If you want to go...
  8. Joe Ku

    My DIY Sub project

    The port length will be determined by both the driver used and the box size. I use that stuff for sealed and usually just line the walls with eggcrate foam for ported boxes.
  9. Joe Ku

    My DIY Sub project

    The quatro should not be used downfiring, It sags just a little too much. As far as box designs go, just move the speaker cutout from the bottom of the box to the front and you are set. The most improtant thing is to use the right sized box for the driver. You could use the plans for the EBS...
  10. Joe Ku

    My DIY Sub project

    the 12"dvc should be ported if you want to use it for hometheater. You would be safer to buy the 250w amp for the quatro. You are more likely to toast the driver if you do not have enough power than if you have too much. Basically if you are going to spend the time to build the quatro, do it...
  11. Joe Ku

    My DIY Sub project

    The 12" shielded DVC in the box I mentioned earlier will be able to use around 100w RMS before it bottoms out, the amp on sale at PE right now for $65 would be a perfect match for it. I would suggest you buy it quickly before the sale ends. You will have a very nice budget sub with this combo.
  12. Joe Ku

    What is MKII?

    MKII means mark 2 or second revision
  13. Joe Ku

    My DIY Sub project

    If you do go with the quatro line of drivers I would still recommend the 15" if you can deal with the box size and the marginal cost increase, it would be well worth the extra $10. The 12" is actually louder than the 15" (optimal ported enclosures*) by about 1db above 40hz but the 15" extends...
  14. Joe Ku

    My DIY Sub project

    I have another option for you that you might like First buy these from Parts Express 295-490 DAYTON 12" SHIELDED DVC SUBWOOFER ($38.75) 260-220 CROSSOVER SUBWOOFER /8 OHM ($32.90) build a box with 3.25cuft internal space plus the volume for the port and bracing. It will probably come to...
  15. Joe Ku

    My DIY Sub project

    Volume of air swept is the important factor for sub, so usually bigger is better. However you could have a 12" sub with a big X-max that displaces as much air as a 15" with a small X-max (this is not uncommon). It is all about the volume of air it can move. The driver I suggested is a relitively...
  16. Joe Ku

    My DIY Sub project

    The amount of power you need depends on the efficiency of the driver you are using. For example, a driver with a 84db efficiency could produce 108db with 128 watts of power while a 90 db efficient sub could produce 114 db with the same power. Total system efficiency depends on the combination of...
  17. Joe Ku

    My DIY Sub project

    If you can live with a roughly 2' x 2' x 2' box check out the Dayton Quatro 15" ($84) and the MCM $89 amp. I am building this soon for my brother in law, should be loud and low for about $200-$225. my calcs say over 110db with an F3 around 22hz. I have to draw up plans anyway, so if you are...
  18. Joe Ku

    budget subwoofer

    Here is what I am going to build for my brother in law as soon as it warms up. 15" dayton quatro, 5.5-6cuft ported box, 250 watt MCM amp (only $89, can't beat that) The box sounds big but externally it will be just under 2 ft per side with bracing included in the calcs, It will only...
  19. Joe Ku

    Center Channel Help

    I know they post over on the PE site, you may be able to find it if you search through their forums.
  20. Joe Ku

    DIY upgrade to an existing sub?

    Better yet try the dayton quatro 15" for $85 (occationally on sale for $75) and put it in a 5.5 cu-ft box (21.5" x 21.5" x 21.5" internal, could be built with 1 4'x8' sheet of $20 MDF) with the 250 watt amp(occationally onsale for $100). This is capable of over 110 db with an F3 of 23hz. You can...
  21. Joe Ku

    Center Channel Help

    The dayton metal dome will be a little more forward than the silkie but not harsh. I know others have combined these centers with the BR-1 and seemed happy. Ask around on the Parts Express messsage board, there are many there who have a lot of experiance with these dayton drivers. Unfortunately...
  22. Joe Ku

    Center Channel Help

    You could build the MTM center shown here: http://home.hawaii.rr.com/sanaka/AudioDIY/DHT/DHT.html it uses the dayton 5.25" driver. It would match the BR-1 very well and is the smallest option i know of. Or there is this all dayton center: http://www.ipee.com/DCC3/DaytonCC.html Or...
  23. Joe Ku

    Best book shelf speakers for $100

    Try these http://www.speakerbuilder.net/web_fi...ts/DBP/dbp.htm
  24. Joe Ku

    So i just got a budget to work with... Now what?

    Here is what you need http://www.partsexpress.com/projects...ayton_iii.html Fits your budget and is reputed to sound great. You can build it as a tower if you want too, just block off the bottom area in the tower so you maintain the correct airspace for the speakers. You can use all...
  25. Joe Ku

    PVR/Jukebox PC, a few questions

    If you are going to rip all your CDs with WMP9 be sure to turn off the DRM option, by default windows applies DRM to all the tracks you rip, which isn't a big deal until your harddrive messes up or you want to copy them all over to a different machine and discover the files won't work anymore.
  26. Joe Ku

    first DIY question

    These are supposed to sound pretty good and you should be able to complete them for under $100 http://www.speakerbuilder.net/web_fi...ts/DBP/dbp.htm Another option would be the Audax Home Theater surround monitors. Parts express has the woofers and tweeters for these on sale. should bring...
  27. Joe Ku

    Accurate Sub for Under $400

    The shiva is no longer as close to the specs of the DVC as I remembered as adire is now selling the shiva MK4 (not the MK3 that I was thinking of) in any case I modeled the new shiva VS the dayton DVC and they still model extremely close to one another in both frequency responce and output. You...
  28. Joe Ku

    sub woofer

    Oh, I have an AV-12 rocking my living room right now, the drivers are out there, just to clear that up.
  29. Joe Ku

    sub woofer

    Ok, I modeled both the 15a and the AV-15. both have very similar efficiency, so they tie there. Modeling both in their optimal boxes the AV-15 extends WAY lower than the 15a, giving the 15a an EBS alignment, the AV-15 still extends lower, has flatter responce, and the AV-15 costs a heck of a lot...
  30. Joe Ku

    sub woofer

    Elemental designs does not list a 15K subwoofer on their site. there is a e12K or a e15A but no 15K, or is it a new model not on their site yet. Please guide me to the woofer you speak of.
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