tasos

Two days ago, i built a new box 2.18cf@33Hz and i did 141.0db @ 42Hz ! http://img227.imageshack.us/my.php?image=42hzue2.jpg I'm very satisfied with the result

I have the usamps 600x and i am pretty satisfied! Right now it's running a MB Quart PVF 216 component set. For a while i had it running a soundstream T4-15 bridged at 2+ohm (dvc 1+1ohm in series, but actually each coil is more than 1 ohm...) and it was moving pretty good! Here is a foto:

With the 32Hz box the Alpine hits the lows much better, in the higher freq is ok and has very nice sq. With the 37Hz box the sq isn't that good. It hits much harder the higher freq, but in the very lows is just ok. Bettwen 32 and 37Hz box, i prefer the 32. The 37Hz bix is generally more boomy. I'll try a box at 34Hz. Maybe it will be the perfect for me.

A week ago i built another box for my Alpine in order to do over 140dbs. The box i built is 2cf at 37Hz and yes i did 140.4db at 42Hz!

Yes, 140dbs with 1 12" BL is possible.

Ok, typer isn't a pure SQ sub, but i like how it sounds. It doesn't sound bad at all. Hey Jim, is this the Great 12 Challenge that you are talking about? http://forum.realmofexcursion.com/forumdisplay.php?f=93

Welcome Lukas! (Lukas is a friend of mine )

Thank you all guys! @JimJ I'm happy hearing this So, the typer's SQ is at same level with BL's SQ? @shizzzon Yes i'm afraid the amp might damage the sub... i think 1500w daily is too much for the typer. With other subs (like soundstream T5-15) i had the sub out at 12/15. At this level the amp puts out unclipped signal (i'm pretty sure about this). When i meterd the typer with termlab i had: vol 25/35, sub out 8/15 --> 139.3 vol 25/35, sub out 12/15 --> 139.6 vol 25/35, sub out 15/15 --> 139.7 vol 30/35, sub out 15/15 --> 139.9 And at the end i set the vol 35/35 and sub out 15/15 and it metered again 139.9db. @bigjae1976 The Havoc at http://www.bladeice.com/havoc.php is only 10

You are right steve.

I currently have an Alpine typer 1222D with this box and this amp. I beleive that the sub at high volume takes over 1kw clean watt rms. (gain is set with a dmm, alpine 9812 (4v subout), volume 25/35, sub out 8/15, gain at 1/3 (5v-to-0.2v)) I'm very satisfied with this setup (i did 139.9db @ 39Hz, link), but i want to try something else... I'm looking for a 12" that will be louder from the typer (2-3db??) and has the same or better SQ. I believe that an Fi Q 12 or an AA Havoc 12 is what i need. Fi Q 12 --> 249

This box is fine. 3.8cf @ 33Hz with 63.75 Square Inches is ok. *In the subwoofertools site you don't have to fill the option two, with only the option one you are ok.

This is from this topic: link

Ok Adrian D -------- I forgot one box: That was for 2 earthquake tremorX 12" - 3.5cf @ 34Hz.

Yes this is true. In the ported box it sounded way better... In comparison with T5-15 the T4 doesn't play the very low freq so good, it has a little better spl and can take more watts.

All the boxes are finished! Ι guess you didn't notice the fotos very well... If you are talking about carpeting, i don't carpet the boxes because i like them without carpet.