I completed my BOSS build last night finally
. Here are some pictures. Didn’t get to play with it much other than making sure it is working as it was late at night. At -22MV with bass +8, 3000D at 1pm 35hz LPF and 35hz +5 LS, my chair shook more than ever
. More impression to follow.
^^ Chairs with ~2” tall foot legs.
^^ Foot legs removed. Double 3/4” glued and screwed plywood was put in place (~1.45" actual thickness).
^^ 4 separate double glued and screwed 3/4” platforms.
^^ Platforms tied together with 3/4” plywood and screwed into chair bottom. 12 Hudson ISOs are in place. 8 JBLs wired for 8ohms load connected to the Behringer 3000D amp in bridge mode.
^^ Chairs right side up.
Edit: I have been playing with my boss for the last couple days and like everyone said: it is amazing, truly is. I feel thing I didn’t notice before as it wobbles a lot more now. The first scene I tried was the Lone survivor chopper scene as I knew I didn’t feel anything with my subs before. This time with boss, I can feel it in my seat/body as the chopper flying through - very cool.
With my source being my HTPC and with the 3000D connected, I was able to play lots of bass demo clips while changing out the settings on the 3000D on the fly to see what I like best. I finally settle on 20hz 12db LR LPF, 35hz +6 LS12, gain at 1o’clock and DynEQ on with 60hz +10 LP12 at -25 threshold (I turn dynEQ off on my Denon AVR). I find that some materials and music can benefit from a higher xover but for now 30hz is a good compromise for all materials. I started out with 180 phase which is actually in phase on the 3000D based on Aron’s post about the reverse internal wiring on the Behringer amp. I then switched to 0 phase and there wasn’t much different (I expected bad sound/feel from switching to one of the 2 phases but it didn’t happen) while playing a song repeatedly. After doing that for 5 minutes, the 0 phase has a hair fuller feel to it, so I settle with 0 phase.
What I like the most about the boss is being able to have the TR and wobble effects at -25MV on my AVR and it feels very real. I was testing the boss out with a song from Paul Rodgers: Live in Glasgow but I enjoyed it so much that I ended up watching the whole concert. It sounded like I was there in the concert with each drum and bass notes hitting my back and body
. To test it out, without changing anything, I stood up, and the feel to the sound was missing then I sat down and boom there it was
I spent about $900 and a weekend building my 8 Jbl boss, it is easily one of the best upgrade I made to my theater. I have been to about 20 AVSers’ houses listening to some of the badest *ss systems hitting above reference up to 150db and I am glad to report that my boss TR has surpassed the TR of those systems
. BOSS completed my bass crave!
Again, I would like to thanks Tim for such a great find and thanks Sbuger for all of his inspirational posts
^^VibSensor measurements show strong TR with Boss only measurement especially with a BIG jump at 10Hz as compared to Subs only measurement.
^^ Quite strong TR at 7hz on Lone Survivor Chinook scene.