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Hi all! After finishing my IB sub, I'd like to build a small ported sub. I've been looking at the TB drivers: http://www.partsexpress.com/pe/pshow...number=264-854 http://www.partsexpress.com/pe/pshow...number=264-832 Due to s/h to Mexico, a pair of 6 1/2" are "only" $20 more...

Hi all! I'm building my 4 driver IB. Each subwoofer has a 4 ohm voice coil, and they are DVC's. I can get either a 2 Ohm or 8 Ohm load, and lose almost 100 watts if I went for the 8 Ohm load (from 272 to 180 Watts). Can I use the PE 300-794 in 2 Ohm mode if I add a fan, or if I keep...

Hi all! After building a couple of subs, I think I'd like to try and build a full range speaker now... the temptation is too much to resist, and my PC speakers are gone (some old JBL Control LA) so I have the hardware to play with. I'd love to build someone with an extremely high quality /...

Hi all, I just finished my 4th & 5th subwoofers... thanks to all for your help! I guess I've come a long way since I got here. This forum is absolutely invaluable. Anyway... I wanted a couple of subs for my B&W DM602S3 speakers. They have nice bass, but are seriously lacking in the 50 hz...

Hi, I was wondering... for my next project, I'd love to do something unusual. I saw the MartinLogan Descent sub and some hybrid electrostats with a weird woofer. It has two drivers, one on each face of a cube. One "pushes" air into the enclosure, while another "pulls" it out. For all I...

I bought these drivers on November, 2002... did I just set a record for the longest time in building a subwoofer? :b - What I tried to do: * Build a decent enough subwoofer with parts available in México City. That means no Adire, no Parts Express, no... well, you get the idea. - The...

Hi all! Well, I finally got my box built (2 of them, actually). I have no clue what happened, but I just calculated the enclosure volume, and considering bracing and such, I'm left with 118L's worth of volume. I was aiming to get 150L's. :frowning: Anyway... this is not so bad. Since I...

I'm thinking about this... I have a 12" driver (C-V HED-12) with a high Vas (192 L), and 22Hz Fs. WinISD shows me I have a -12 dB response at 20 Hz using a 60 liter box. This driver really wants something bigger... How about a Linkwitz transform? WinISD shows you the correct excursion data...

Hi all! I was wondering. When used on an HT, the receiver does all crossover work in the digital domain, sending low frequencies to the sub and high frequencies to all satellite speakers. I don't use my sub like that. I have a stereo amp with no crossover, and run a line-out cable to my...

Hello all, and Happy Holidays! :D I'll start my new subwoofer project in January. So far, my older one met the dreaded WAF spot-on (a 214L Tempest). It wasn't too difficult, actually - I merely used laminate in the same color as the rest of the speakers, wall and floors. This time, it'll...

Hi all, After building the AA Tempest, I noticed I still have a bit to learn about building cabinets... :) (you might remember the cabinet I used developed some kind of crack / became unglued). The sub still works like a champ in my music-only system, so I'm very excited about my next...

My third project was actually the first one I could finish. I have already made 4 speaker cables out of CAT5 cables. It's a nice stress reliever, too! If you want to build them yourself, here are the instructions for doing so: http://www.venhaus1.com/diycatfivecables.html Be...

This is the second project I started. I was (obviously) less into the building of these stands, since it has been quite a while since I last welded anything to anything else... :D A friend of mine has this ability, though, and I asked him for help on this project. He built the staircase for...

This is post #1 regarding a couple of projects I began 1 year ago... all inspired by all the people on this forum. Once again, thank you for allowing me to learn from you, and for helping me start a couple of projects I have finally been able to do. You are the best! :D First: The...

Well, my Adire Alignment Tempest is built! All I'm missing now is installing the whole works into it. I had it built by a professional carpenter; there was something he did that modified the overall size of the cabinet, though. He used 1" MDF, and followed the Adire instructions. So, the...

I was looking at some UniBox graphs... Apparently, a cheap (good) sub with nice Xmax and Qts can deliver a good deal of power (close to a Titanic 10" - 12"), if the box is big enough. Even better, the response curve is just -6 dB at 20 Hz. If I do build this thing (the box is big - 150...

Hello all, I have a DIY speaker. It's an MTM design. I'd like to identify the brand of the woofer. It's a 5 1/4" driver. Specs say it's made of Neoflex. But the most interesting thing is the woofer's dustcap. It has a logo engraved on it. The logo looks like a spiral. Any ideas? I'd...

Please help a complete newbie select a pair of speakers... :D I just got a call from my dealer. Would I be interested in listening to the Energy Connoiseur C-9? They just started bringing them to México. Cost? $1K. He said it would be a nice alternative to the $1.4K B&W DM604 S3 I was...

So, now that my first project (Tempest AA) is well under way :), and with a new home project, I was thinking about building a sub for my personal system. The Tempest will be used for a pair of piston speakers - I think they'll sound pretty good, since both are ported. But the next sub *has*...

I finally got someone to build my box for me :) It'll be made of 1" MDF, except for the baffle (2" MDF), laminated with triplay and a mahogany finish. Assembled, the carpenter is asking for $190 USD. :eek: Isn't this a bit... expensive? We haggled for a bit, I got it down from $240 to...

Hi all, As I was looking through the designs of some friend who builds speakers, I noticed something weird on the inside. I asked him if that was cement. He said it was. It looked like plaster to me. I wonder. Does cement help dampen vibrations? Add mass so that the sub doesn't jump...

I'm thinking about getting a set of speakers made out of Focal drivers. The speaker has been pre-built. It's 1" MDF. I do not know exactly the model number of the drivers, though the midranges' surround is made of Nomex, and the cone out of carbon fiber. The tweeter is a Focal, too. They are...

Hi all, I just received my Norah Jones SACD. What can I say - her voice is incredible. Sadly, I'm having some weird problems with the first track ("Don't know why"). If I raise the volume on it, her voice sounds so powerful in the mid range it hurts my ears... even though the rest of the...

I *know* it's a dumb question... But does the "Tangerine Dream" PT Cruiser have something to do with Tangerine Dream, the musical group? The car itself is funky... a great shade of metallic orange. Funny thing is, I'd think they would not name the car after an existing group. Or so I think.

I mean, if I configure a sub array as to have an "X" ohm nominal impedance, there *must* be some sort of limit... I might think inductance or capacitance might shoot off limits... or does it have to do something with the damping factor of the amplifier? I think I slept thru my EE classes...

I was thinking... ((Disclaimer: I own a SACD player and like the format)) First, Sony says SACD has an intrinsic advantage over DVD-A: hybrid discs. You can still buy the music you like, and move to a higher level of performance later on by buying a SACD player. Meanwhile, the fidelity...

I can think of a couple of instances where music really, REALLY needs to be remastered before the master tapes fade into obscurity. How about you? I'd like to see re-released (in DVD-A, SACD, or plain ol' 44.1/16 CD): 1) The entire back catalogue of The Alan Parsons Project. "I Robot"...

It had to be done... 1st place: Carlos Santana, Supernatural. Need I say more? Can an album be more compressed than this one? Take it from here, friends :)

Hello, I would like to try upsampling in my collection, and it seems the Monarch DIP could be a good device to try. It can upsample a signal to 48-96KHz. Since I also own a Behringer UltraCurve Pro, I was thinking about inserting the device between my CD player and the equalizer. I would...

Hi all! I am looking to add a pre-amp to my system. Currently, a Luxman CD player with integrated pre-amp is part of it, and since I'll be adding a Behringer Ultra-Curve, I'll be needing a preamp soon. I have been looking at the Parasound P/HP-850 and the Creek OBH-12 passive preamp. I...