Quote:
brucek wrote:
 My feeling is that most receivers/processors will be perfect in their crossover execution and will have a flat line out to 20KHz without fail (your green line). The differences we're most interested in would be the low end response effect on our subwoofers. This is where you would find differences between products. I would rather see the graphs from 2Hz to 200Hz (or at least that in addition to what you're requesting), to better examine the drop below 20Hz. Certainly all the crazies aficionados of bass down to 5Hz would be extremely interested in the constraint their equipment is placing on the final sound.
brucek |
I agree that the majority of differences will be below 20Hz, but I would like to keep the full sweep also because you never know, we may just find some manufactures altering their response to have a "signature sound". That would be interesting
The other question is, do we adjust the second sub only graph so that the highest point is at the 0db line, even though it read higher under identical conditions(I'm leaning towards yes). I'm really wondering why the inclusion of the crossover increased the line by about 0.5db
The other thing that was interesting was the noisefloor as shown in the impulse response graphs. Both Full and Mains was -105db, but Sub was -60. I think this was due to signal being passed through above the crossover, I've zoomed out the graph, see here:
cheers
