Search results

Another decent looking choice using .5 cubic foot enclosures is this design: http://www.speakerbuilder.net/web_fi...k/pcrkmain.htm It is slightly more expensive design, but from what I've read, a step up from the budget 2 way also designed by Wayne and featured in the Parts Express project...

I did not notice that your links for the woofer and tweeter were not to those used in the project showcase project. The correct links for the drivers are: http://www.partsexpress.com/pe/showd...=7350&CATID=49 and http://www.partsexpress.com/pe/showd...=7768&CATID=49 Even more...

This I can easily agree with... Good Luck with your project. If you invest a few years of time to learn the engineering behind speaker design you will probably will get great results. If you leverage the work and design of others that are experienced (build a proven design with the...

If you are just looking for background music you can do as I did. Over 10 years ago I found a small set of indoor/outdoor speakers at Sams... They had plastic cabinets about 10 inches wide, 5 inches high, and about the same depth. They specifically said they were not for direct exposure to...

Will the black aniline DYE work on raw MDF? Sure will... (or, at least the water based dye will, I've not ever used the alcohol based dye... yet. I'll bet it would work too though....) Works great... you do have to be careful of getting glue on the surface of the MDF before applying the dye...

I had used the water soluble dye powder. It did raise the fibers of the veneer. The instructions on the woodworker web-site direct you to dampen the veneer surface with water first and let it dry to raise any fibers. Then to lightly sand and then apply the dye. I think the alcohol based dye...

Probably not local unless you are lucky, but it is available in both water soluble powder and alcohol soluble powder here: http://woodworker.com/cgi-bin/FULLPR...ARTNUM=844-995 and http://woodworker.com/cgi-bin/FULLPR...ARTNUM=846-150 I used the water soluble EBONY BLACK when I built...

Good eyes... Just glue. (Yellow carpenter glue) That is why I said "the more clamps, the better". I built the Left/Right and Center channel enclosures first and at that time I did not own as many clamps. I did use screws with a few clamps on them, moving the clamps as I added pieces...

What you *NEED* is very different than what you could use. You *NEED* to be able to cut straight lines in MDF or plywood. You can do that with a table saw with a good accurate fence, or, you can do it with a circular saw, a straight-edge, and two clamps. You do *NEED* a few clamps. More...

It will work very well... In fact, I'm using it to feed my subwoofers indoors as it is less noticable running across my dark colored carpet than the usual clear colored wire sold for speakers. As you said, it is 14 guage, and way less loss for long runs (likely outdoors) Most important, it is...

As far as I know, there is not a lot of "reference material" on building a subwoofer into a stage out there. There are many ways to build a subwoofer enclosure, two of the most common are a "sealed" enclosure and a "ported" enclosure. Each has its own advantages... for the most part, the one...

Scott, My room is roughly 14 feet wide by 20 feet long with 8 foot ceilings. The Tempest based subwoofer was to the right of the screen in the front of the room. Front row of seats is about 12 feet from the screen. That is where I had made the response curve shown earlier. The Tempest...

I solved that issue by cutting each subsequent board about 1/8th inch larger than the first and then clamping each in turn to the first and trimming the larger board even with a flush trimming bit in my router. It is really easy to get smooth, accurate, square cuts on multiple boards when...

Derek, The relatively "low-Q" 260L alignment I constructed with my Tempest driver kept my sub from being "boomy." That allows it to sound pretty decent with both music and movie soundtracks. I was not limited to a small enclosure so it made sense to me to go with a large ported enclosure...

Derek, I built a 260L Sonosub using the same Adire Tempest driver you will be using. I tuned the enclosure to just under 17 Hz using a single 6 inch diameter port. I estimate the "Q" to be somewhere near 0.6 I paired it up with a Parts Express 250 watt plate amplifier. (The one without any...

Rummage through your junk drawers and find a 6 to 9 volt DC wall wart and plug it into your switched outlet on your receiver. If you don't have a wall-wart of the right voltage, a quick trip to Radio Shack will let you buy one. If you measure it without a load I'll bet the voltage from the...

Thomas, Thanks again. I'll post a frequency response run when I get a bit more time. At this point, I need to get a last minute errand done... before Santa gets here.. (I've been good... honest...) Top black velvet fabric is in place, but not yet attached. That will come next week...

Thomas, I have used the "Room Equalizer Wizard" to check out the frequency response and it did not look too bad. I'm a bit confused with adding so much additional gain at the low end with the shelving filter / LT as my response did not seem to drop off in the same fashion but it is easy...

Thomas, Thanks again for the constructive feedback. I'm in the middle of covering the face of the two subs with fabric and at the same time I've taken the opportunity to switch the orientation of the front feet to raise the edge of the subs facing away from the screen. The front edge of the...

Steve, I did not model them myself, but instead went by the power recommended on the Ascendant Audio web site at this page I've not heard anything that remotely sounded like they were bottoming out, or, even hard "clipping." Even though there is no explicit "rumble filter" in the amplifiers...

Owen, The feet on my enclosures are not tapered, but they are somewhat similar to the ones you made for your subwoofer. Pocket-hole jig worked really well. I used it a lot in assembling the internal bracing in my enclosures in addition to making the feet. Steve, So far I have not added a LT...

I know it has been a while, but I finally had both the time and incentive to get the new subwoofer construction going again. Part of the delay was in that we watch a lot of movies and my current 15" Adire Tempest sub works great. It is only when I try to play the most aggressive sound-tracks...

If the antenna on the roof used for HDTV is a UHF antenna it probably will not be very effective at FM radio frequencies. To be effective for FM it needs to have elements about a 1/4 wavelength long at 98MHz (approx. middle of the FM band) Wavelength (in meters) = 300 / frequency (MHz)...

I mixed up one half of the quart of fiberglass resin I purchased and applied it to the inside front of the subwoofer enclosure this afternoon. With any luck it will fill any cracks between the pieces of plywood I used to reinforce the curved front and result in an air-tight seal. I did learn...

A few pictures of one of my DIY proscenium subwoofer enclosures as construction continues. As I've already mentioned, I'm building two enclosures that will be bolted side-by-side to form the proscenium/stage below the screen in my home theater. Building it as two enclosures allows me to get it...

Steve, I wish I could say it was completed, but progress on the subwoofer has been slow the past few weeks... We recently had a new roof put on my house and three new skylights installed in my bedroom. MY wife and I have been occupied with getting it back to where we have it looking as it...

Steve, Most movie soundtracks have a very low duty cycle for LFE effects and low bass, that is why the amplifier stays cool. There are 4 or 5 fans in my projector, another 3 or 4 in the Home Theater PC. I just don't look forward to adding yet another in an amplifier. That's why I'm going...

Owen, In the mid 70's I built a pair of monoblock amplifier kits put out by a company known as "Southwest Technical Products," the amplifiers went by the name of "Tigersaurus" They were modestly rated at 250 watts RMS into 8 ohms. I built them to use with a pair of "Ohm Acoustics Model F"...

Ryan Schnacke, Very true that the response of sealed enclosures != ported enclosures near their tuning frequency. No argument, but with equalization, and within the xmax limits of the sealed-sub's driver, the response can be made very similar. It really comes down to moving (displacing) air...

Steve, I was thinking of something a bit nicer looking than 2x4s on edge. In fact, I like the style legs that Owen Bartley used on his subwoofer as shown on his web-site web-site here I took no offense when you said I would notice a big difference when my new subwoofer project is complete. It...