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Post by Ethan Winer on Feb 22, 2022 21:18:25 GMT
What Hexspa said.
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Post by Ethan Winer on Feb 21, 2022 18:53:33 GMT
Okay, good, let me know what your experiments uncover.
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Post by Ethan Winer on Feb 21, 2022 17:49:42 GMT
I am struggling to eliminate just such an audible change in response when moving my head laterally at the MLP even when L and R are isolated. I will do my best to describe the situation and would appreciate recommendations! Your analysis is certainly thorough! And so is your treatment. To be clear, the problem is the left channel only, yes? At -16 dB that's not terrible, and shouldn't be a huge problem audibly. It looks like disabling Audyssey helps. Another thing that should help is angling your speakers to face the prime spot in the center of the couch. Speakers are always more flat on-axis, and that also sends less of the sound off to the sides. Also, does your couch back extend higher than your shoulders? If it does, raise the measuring microphone and see if that helps.
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Post by Ethan Winer on Feb 19, 2022 17:11:34 GMT
To be clear, I gave them permission for free. I don't make any money when someone buys a kit!
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Post by Ethan Winer on Feb 19, 2022 16:50:25 GMT
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Post by Ethan Winer on Feb 17, 2022 17:12:42 GMT
The input resistor is needed to avoid forcing too much current into the clipping diodes. The circuit will probably work well enough with a higher value, though you'll probably need to increase R2 and R3 as well. This is a simple circuit, so there's no chance you'll electrocute yourself experimenting. Though without R1 it's possible to blow up the diodes. Yes, you can certainly replace the switch and fixed resistors with a pot to vary the distortion continuously. I picked those values by trial and error, and that's what you should do too. Either by building the circuit and listening as you experiment, or start first with LTspice as I did.
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Post by Ethan Winer on Jul 16, 2021 16:13:30 GMT
Also, you said you moved your speakers and listening position, and those are known to have a huge impact on frequency response.
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Post by Ethan Winer on Jul 16, 2021 15:13:12 GMT
Can someone tell me why? What did I effectively do here? A guy told me I created a helmholtz resonator. Even if true, I’d like to know more about what it is doing. I'm usually the first person to say it's not strictly necessary to measure a room in order to know how to treat it. But in this case you want to know what happened. And for that you really do need to measure. You can't do this by ear for a variety of reasons. I'm skeptical that placing wood doors across corners improves the bass response by "breaking up" the reflected waves because bass waves are very large. Though I suppose it's possible that some of that is going on. As for symmetry, it matters most in the front of the room, in the area between you and the speakers. What happens behind you, and behind the speakers, has less affect on stereo imaging.
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Post by Ethan Winer on Apr 24, 2021 15:12:32 GMT
Thanks Hex, I have a killer subwoofer that shakes the entire house, so I'm all set for "good vibrations."
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Post by Ethan Winer on Apr 23, 2021 15:28:29 GMT
Thanks for the report. I've never tried a buttkicker type device. I did try one that was supposedly full range (not just bass) years ago at a hi-fi show, but it was pretty lame.
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Post by Ethan Winer on Jan 26, 2021 16:33:32 GMT
I think hessian is the British word for burlap? A good fabric store will have it in several colors, not just "potato sack" brown.
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Post by Ethan Winer on Jan 25, 2021 22:37:05 GMT
Just to add to Michael's advice: Since you can't easily test or even touch online products before buying, it's usefulness is a gamble. Table cloths are usually fairly dense, more dense than you'd want covering fiberglass or mineral wool.
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Post by Ethan Winer on Jan 19, 2021 20:38:14 GMT
I assume any sound card in any modern computer will be good enough for REW. High quality converter chips are common and inexpensive. But any Scarlett would be just as good if not better. I'm certain that your 2i4 can record and play at the same time!
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Post by Ethan Winer on Jan 19, 2021 20:34:13 GMT
I would expect the schematic for the active version to be online, but I can't find it either.
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Post by Ethan Winer on Jan 18, 2021 22:37:27 GMT
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