A XO of 60Hz is about right for that speaker.  No need to force the speaker to play lower if voice/dialogue clarity is sought. Adjust the 3000 Hz band up 3 db.  Voices are mostly in the 1000-4000 Hz range for easy detection by the ear. Playing a speaker to the XO cut-off just introduces more distortion IMHO.

A new snowblower to replace the one that blew up in the middle of a snowstorm last week.  Just went with a fairly basic Troy-Bilt 24” with 208cc motor since we just have a single car driveway and not much sidewalk. Bring on the snow!

J'ai trouvé une photo de la même platine mai moi c'est une platine de r115sw 

La photo ne se télécharge pas mai j'ai vu la même platine je joins la photo du même type d'ampli que j'ai vu sa va peut être marcher 

how much do you want for them?

Not much left in this year's run for the Natty.  Something is gonna shake!     @Schu Here's your football schedule thru the end of the year.  Still hosting the Natty at your place?  That new 83" would shine for sure!         Friday, Dec. 27 Navy vs. Oklahoma (Armed Forces Bowl) | 12 p.m. | ESPN Georgia Tech vs. Vanderbilt (Birmingham Bowl) | 3:30 p.m. | ESPN Arkansas vs. Texas Tech (Liberty Bowl) | 7 p.m. | ESPN No. 21 Syracuse vs. Washington State (Holiday Bowl) | 8 p.m. | FOX USC vs. Texas A&M (Las Vegas Bowl) | 10:30 p.m. | ESPN   Saturday, Dec. 28 UConn vs. North Carolina (Fenway Bowl) | 11 a.m. | ESPN Boston College vs. Nebraska (Pinstripe Bowl) | 12 p.m. | ABC TCU vs. Louisiana (New Mexico Bowl) | 2:15 p.m. | ESPN No. 13 Miami (Fla.) vs. No. 18 Iowa State (Pop-Tarts Bowl) | 3:30 p.m. | ABC Colorado State vs. Miami (Ohio) (Arizona Bowl) | 4:30 p.m. | CW Network NC State vs. East Carolina (Military Bowl) | 5:45 p.m. | ESPN No. 17 BYU vs. No. 23 Colorado (Alamo Bowl) | 7:30 p.m. | ABC No. 22 Army vs. Louisiana Tech (Independence Bowl) | 9:15 p.m. | ESPN   Monday, Dec. 30 No. 19 Missouri vs. Iowa (Music City Bowl) | 2:30 p.m. | ESPN   Tuesday, Dec. 31 No. 11 Alabama vs. Michigan (ReliaQuest Bowl) | 12 p.m. | ESPN Louisville vs. Washington (Sun Bowl) | 2 p.m. | CBS No. 15 South Carolina vs. No. 20 Illinois (Citrus Bowl) | 3 p.m. | ABC LSU vs. Baylor (Texas Bowl) | 3:30 p.m. | ESPN No. 4 Penn State vs. No. 9 Boise State (College Football Playoff quarterfinals — Fiesta Bowl) | 7:30 p.m. | ESPN   Wednesday, Jan. 1 No. 3 Texas vs. No. 12 Arizona State (College Football Playoff quarterfinals — Peach Bowl) | 1 p.m. | ESPN No. 1 Oregon vs. No. 6 Ohio State (College Football Playoff quarterfinals — Rose Bowl) | 5 p.m. | ESPN No. 2 Georgia vs. No. 5 Notre Dame (College Football Playoff quarterfinals — Sugar Bowl) | 8:45 p.m. | ESPN   Thursday, Jan. 2 No. 14 Ole Miss vs. Duke (Gator Bowl) | 7:30 p.m. | ESPN   Friday, Jan. 3 North Texas vs. Texas State (First Responder Bowl) | 4 p.m. | ESPN Minnesota vs. Virginia Tech (Duke's Mayo Bowl) | 7:30 p.m. | ESPN   Saturday, Jan. 4 Liberty vs. Buffalo (Bahamas Bowl) | 11 a.m. | ESPN2   Sunday, Jan. 5 North Central (IL) vs. Mount Union (Stagg Bowl for the DIII championship game in Houston) | 8 p.m. | ESPN   Monday, Jan. 6 Montana State vs. North Dakota State (FCS championship game in Frisco, Texas) | 7 p.m. | ESPN   Thursday, Jan. 9 TBD vs. TBD (College Football Playoff Semifinal Game — Orange Bowl) | 7:30 p.m. | ESPN   Friday, Jan. 10 TBD vs. TBD (College Football Playoff Semifinal Game — Cotton Bowl) | 7:30 p.m. | ESPN   Monday, Jan. 20 TBD vs. TBD (College Football Playoff National Championship Game — in Atlanta) | 7:30 p.m. | ESPN  

Bonjour à tous  J'ai un souci avec mon caison r115sw le voyant vert s'allume mais aucun son ne sort le caisson et déjà partie en réparation sav ya 3 ans pour le même souci il on remplace entièrement le caisson, et sa recommence mai la garantie et finie depuis 1 ans j'ai lu toutes les pages du forum mai aucune platine ressemblant à la mienne avec ce souci exact de ce problème a été clairement expliqué et je suis perdu pour la réparation des composants a changé il semblerait que ce soit les nouvelles versions avec la colle silicone sur tout les composants, il ni a aucune trace de composants cramé ou fondu ou même aillant u une surchauffe, je vous joint une photo pour vous permettre de mieux voir le genre de platine amplificateur que j'ai et de m'aide a résoudre ce problème je vous remercie d' avance , ps je crois que la photo ne s'affiche pas car sa me dit téléchargement échoué je valide quand même voir si sa fonctionne une fois publié 

Porting the woofer chamber: Back when I was at Universal Studios, they had "Sensurround" Subwoofers with 18" woofers made by Cerwin Vega. We "found" these "W" bass-horn boxes under the stage at the Hitchcock Theater. I tested and found they were really 60hz boxes unless you extended the mouth about 9 feet!...as they did have extensions to do that. But their sealed woofer chamber was 9 cubic feet. So I modeled it and added an 8~10" round port and tuned to 25 hz. Then added a LR crossover and parametric EQ and walla, I had a pretty tight 25HZ .1 channel subwoofer for film! It was not as tight as a fully horn-loaded sub, but much better than your average bass reflex box. So ya, porting the woofer chamber works well!