Dange (rous) ground there
Here's a deal. If SAC is prepared to answer the simple questions, I am prepared to perform an experiment exactly by his specs.
Let's be very clear now.
SAC said
Quote:
Assuming the null is caused by a reflection, you simply need a broadband absorber capable of mitigating a simple reflection delayed by 4.5 msec that travels an additional 5.1 feet further than the direct signal.
An initial ETC would have verified the existence of such a reflection, as well as a simple and quick verification of the precise path (for which a vertically mounted absorber would work just as well as a horizontal absorber laid precariously on the floor!)
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I have a studio here, stand mounted ADAM S3A's. Geometry roughly equivalent to the original poster's diagram. I have readily available MicroTraps, Mini Traps and HF MiniTraps, I also have raw panels of 100KG Rockwool. All of these are approx 2 x 4 feet. I have FM2. This doesn't do ETC but generally reflections are totally identifiable in the Impulse Response graph. There is also a Log Squared view. Furthermore I can am am prepared to export the Impulse Response files, so that anyone can join in the analysis. Massenburg Preamps, ProTools HD192, DPA 4060. Ready to go.
So SAC, what panel or panels, mounted exactly where?
DD
W