Originally posted by Sleeper:
My setup as it stands right now;
Alpine CD Player w/ 4V pre-out
Soundstream BLT (balanced line transmitter)
AudioControl Four.1 (pressing out 13.5V of pure signal)
AudioControl ESP-2 (simulating my center stage)
AudioControl EQX
Soundstream Ref300 (75W x 1 Channel)
--> Lightning audio 1F cap
--> 2 12" Phoenix Gold Saphire Subs (Wired in parallel)
(I have the subs in parallel to decrease to 2ohms, but then I added them in series with 8 50W/50Ohm power resistors, this gives me a super stable 8Ohm load on the amp, it also increase the amount of current, giving me a nice 37.5W per sub actual, but it performs like 300W per sub, this setup is so very beneficial in competitions.)
Soundstream Ref404s (40W x 4 channels)
--> Infinity REF605CS (6.5" w/ 1")
--> Infinity REF5752CF (5"x7" two-way)
The subs are housed in a ported band-bass box.
The box was designed and tuned for the subs (1.75 cubic feet and tuned to optimize 32-64Hz range).
My problem is not the setup but has something to do with the car, my RTA line drops 6dB between 500 and 1kHz. This is also causing my a 12dB loss on SPL. Just wondering if anyone has seen this problem? If its related to a something on the car soaking up the energy at those frequencies. I have dynamat throughout almost all of the car.
Just curious. Why did you feel the need for a Four.1, [with its high output] and a blt in the same set up? And yes, I'm fully aware of the benefits of each seperately. Also, why would you choose an amp known for its high current abilities [Ref 300], and then castrate it with resistors? You could've saved yourself a lot of hassel by just running the amp in two channel mode. Same output...or better.
Ummm. 37.5 watts performing like 300???? Sorry. It's not. I used to have a pair of 300s, and other Ref. models as well. I can't bad mouth them a bit. My 300s were run in 2 ohm mono for over two years without a hiccup. I'll tell you this though, their power in this mode compared to their "per channel into 4ohm rating" of 37.5 watts [with high current switch "on"] is like nite and day. I honestly can't say that their "sound quality" suffered in the least on sub base program material either.
Just my two cents...
