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Avia, VE, receiver test tones and sine waves will all give different results. Which is "correct" ? None of them. All of them. Perfect subwoofer calibration is not only arbitrary but not even possible (in an untreated room). Try this- get the level just right with whatever noise reference...

Situation is that I have a 3 way stereo active line level crossover that does not sum the low band for a mono sub. I could try using a Y for the low outs and feed that summed signal to the BFD then to the sub amp, but I suspect that is a bad idea without a buffer circuit. Could I feed both...

The problem : House is overstocked with speakers but the garage is full of idle woodworking tools and finishing supplies. Spouse/SO would melt down if you show up with another sheet of MDF. The Solution : What else combines music, woodworking, finishing and electronics ? Another angle...

Ebay veneer auction Check his other auctions for similar circles in some other species

My brother needed a place to store his new shiva driver until I could make his IB baffel. He choose the cabinet near his TV and the picture is pretty messed up. Is there anything that can be done ? Will the effect gradually go away or is he just hosed ?

My initial take was to leave my 25-31 PC (serial # 000003) as is since it pessureized my room to insane levels with clean musical bass, so what is the point of upgrading ? Then I saw side by side pics of the driver, and I had to have that big ass magnet whether I needed it or not. After...

Here is my hairbrained scheme. I've got some 18 inch sonotube in the garage and a SUV that needs a sub (according to my son anyway). Could I do the driver upgrade to my early SVS 25-31 PC and mount the old driver into about 3 feet of the 18 inch sonotube with a port or ports, get a car amp and...

I posted this awhile ago, but didn't link the graph, so I'll try it again because this was surprising. In a quest for a flat bass FR, I decided to see what effect a small movement in main speakers made. This is a 2 channel stereo setup. These plots are sine waves, rat shack meter corrected. No...

http://members.aol.com/brianf1429/sub/Sub1.jpg http://members.aol.com/brianf1429/sub/sub2.jpg Been working for 2 months on this thing. Except for refining the french polish finish, its finally done. I'll decribe aspects of the project that differ from most of the others. 1) Shellaced endcaps...