The $469 price for the 21 is the DR motor – which is a 7.5” triple stacked motor, very beefy. On the IB 21 – T/S are: Fs: 21 Hz Qms: 8.08 Qts: 0.67 Qes: 0.73 Mms: 419 g BL: 15.35 Vas: 372.7 L SPL: 90.5 1w/1m

Can anyone throw a few suggestions for small subs to match with my newly built za5.2 L&R, 5.3 center? (http://www.zaphaudio.com/ZA5/) I'm guessing crossed at 100mhz or so? Reqs: 1) Plate Amp & Driver 300 or less 2) 15x18x18 maximum external size with feet if down-firing 3) Looking for good...

I found two designs that are practical for me but I want to hear what you guys think. I created a poll for easy opinions and welcome feedback. I will be getting my IXL 18.2.2 any day now and will have everything done this coming weekend (26th). I have some leads on amps and now all I need is the...

Okay I am looking into getting a subwoofer for my home theater system. My budget is around $250-300 and the size of the room it will be in is about 17x15 ft but I may get a bigger room so I'd like to get either a 12 or a 15. I would also like the sub to be able to get a 4 ohm load and I would...

I am currently using a budget receiver that was from a HTiB a couple years ago. Yamaha HTR-5930 I already upgraded all my speakers and am needing a better subwoofer that came with my Yamaha. I am looking at the eD A3S-250 and I am not sure if my receiver can handle the sub the way it is...

For my down stairs area I'm contemplating building a sub myself, scary thought I know. I'm wanting to create a sub that I can place a TV on top of so minimising vibrations is a consideration. Something like the Seaton Submersive with its opposed 15" drivers would do the trick. But... to...

Hey guys, I'm a regular around AVS and DIYMA but wanted some input from you DIY guys. I've been using the very first Atlas 12" that Chad K sold a number of years back in the car and have now had it in HT duty for the last year maybe. I've noticed that it has noticeable tinsel/mech noise (not...

Good day, I have recently purchased a pair of PSB T-45's and a C-40 Center channel to go along with my Denon 1910 receiver. I am saving up for a decent sub and pair of surrounds. While cleaning out my storage unit, I discovered a set of Eosone (discontinued, used to be division of Polk) RSA...

I was listening to the U-571 depth Charges scene for the first time with only my sub on. Now, were are people running the volume control on the ED A3-300? As a newb of coarse I like it with it all the way clockwise. But I'm sure this isn't the best scenerio for the sub itself. I can hear what...

Curious as I have not seen too much discussion? I have lined my 100L sub boxes with 1.5" egg crate type foam, and was thinking of adding a pillow inside each cab, guess I do not understand what sort of dampening may be required, but I did think some sort of dampening was usefull? How do you...

Hi all, Just wondering, room, around 60ft by 80ft or maybe 60ft by 60ft or 80ft by 80ft? Can't quite remember, but it has a suspended tile ceiling. Anyway out of this choice, and these are rough WinISD estimates taking into account around 50-60 litre of bracing/driver/port displacement, what...

As per title, Is a 2+2" sub frame/bracing/skeleton suitable for a large sub? 2+2" batton is cheaper and involves less work for internal bracing of a cabinet, so you could build an internal braced skeleton to glue and screw outer panels to with a square and a hand saw, drill and long screws...

It is a TC sounds oem 10. Specs: - Qts 0.357 - Qes 0.400 - Qms 3.35 - Fs 30Hz - Res 3.11 ohms - Ls 4.0 mH - Lp 6.26 mH - Rp 9.9 ohms - Dia 208mm - Vas 19.3 liters - Mms 224 grams - Cms 119 um/N - BL 18.35Tm - Spl 83.3dB Enclosure Recoomendations: - Small Sealed: 0.3 cubic feet - Large Sealed...

I have a definitive tech 15tl+. The plus signifies it has the upgraded 500 watt amp. The internal airspace is aprox. 16x16x16 (2.3 cu. ft?) and it has a slot port on the back bottom that is 15.5"x12"x3/4". I could use the same port, put in a different port, or seal it. I will check the ohm...

Due to the thousands of posts on subwoofer design a request for some design suggestions from the more experienced is almost a necessity. I'm a veteran cabinet maker and have a good feel for some of the software packages available so all I really need is a few suggestions to get me going in the...

I have a def tech PRO 1000 10" subwoofer and want to upgrade badly but wife + budget = squat. Could/should I remove the 10" woofer and replace it with another 10" woofer and possibly another amp? Just wanted to see what options I have and if these mods would be worth the effort. 40% movies/...

Hey guys, I was currently looking to get a FI q or btl for X-mas i was wondering if you guys had any suggestions to the sub i also like the Maelstrom x 18 but its a wee expensive when you compare to the FI btl or q for bang for buck?... oh 12 to 18 and between nothing out side price rand from...

Hi all! I'm thinking that by the price of a plate amp plus shipping (final price around 200$ ~ 250$) I could go for an external amplifier that could be reused in the future. I see that many people uses behringer amps here and they seem powerful. There's also listed some DAP Audio and Samson amps...

What are the drawbacks, if any, of having an in-wall front ported subwoofer flush-mounted to the wall, with the enclosure built into a closet that opens from another other room? Reduced output? Whole house rattles? Difficult to predict bass response due to the sub enclosure being behind a...

My sub will be arriving today and I am little confused about the type of wire should be used. As of suggestion, I want to use EQ out from the from front of the Marantz PM550 DC AMP to go into the Sub's RCA in. As you know EQ is stereo. where as sub will be a single RCA. Questions: 1. Lead...