Topic: Bill-p HE-560 mod (Read 11836 times)

Marvey · « **Reply #90 on:** April 13, 2015, 02:29:55 PM »

Before (top) and after (bottom) measurement of Bill-P mod.

Bill-p · « **Reply #91 on:** April 13, 2015, 03:56:47 PM »

Thanks for the graphs, Marv.

Surprisingly not as much change as I saw on my rig. 4KHz peak moved down to 3KHz, but that could very well have been positioning, so I'd say it's pretty much identical there. Perhaps I shouldn't have removed the cloth piece after all.

CSD shows more decay from 1KHz downward... probably due to my attempt to "clog up" the HE-560 to make it sound less thin.

Interestingly, distortions seem to have dropped. I couldn't measure that reliably, so it's good to see that it's lower even with my attempt to bring out decay. Hahaha.

Low-bass distortion is expected. I broke the seal to achieve a slightly airier sound. This normally would have only caused bass to drop, but the HE-560's unique magnetic structure causes it to get outta control, and thus the distortion. I thought about that from the Abyss' seal. Apparently, Abyss' bass also gets outta control and does the same thing when the seal is broken. But I like Abyss' bass without the seal, hence... this.

Marvey · « **Reply #92 on:** April 13, 2015, 04:07:15 PM »

I wouldn't worry about distortion < 40Hz. Not as much musical information there as most people think. In other words, I'd be happier with a "fast" subwoofer that went down to 35-40Hz than a "slow" blobby subwoofer that went down to 10Hz.

Bill-p · « **Reply #93 on:** April 13, 2015, 04:25:35 PM »

To be honest, I have only understood the concept of "fast" bass recently, so that's why I wasn't able to incorporate any modifications toward that goal in the HE-560. I'm sure the HE-560 would have sounded very nice with even tighter bass.

Thujone · « **Reply #94 on:** April 13, 2015, 05:22:49 PM »

Quote from: Bill-p on April 13, 2015, 03:56:47 PM

Surprisingly not as much change as I saw on my rig.

I noticed that your measurements (on the previous page) have different scaling on the Y-axis, making the first graph look more like a roller coaster and the second graph look more flat. The overlay is probably not as different as these measurements make it look.

Hands · « **Reply #95 on:** April 13, 2015, 05:28:22 PM »

So it still has that 3-4KHz peak of death?

Bill-p · « **Reply #96 on:** April 13, 2015, 05:32:33 PM »

Quote from: Thujone on April 13, 2015, 05:22:49 PM

I noticed that your measurements (on the previous page) have different scaling on the Y-axis, making the first graph look more like a roller coaster and the second graph look more flat. The overlay is probably not as different as these measurements make it look.

Oh, I meant the 3-4KHz region. In my measurements, the stock one had much more of that.

Quote from: hans030390 on April 13, 2015, 05:28:22 PM

So it still has that 3-4KHz peak of death?

Well, at least you don't have a peak at higher now, so it'll just sound slightly annoying rather than full-blown annoying and shrill.

Author Topic: Bill-p HE-560 mod (Read 11836 times)

Marvey

Re: Bill-p HE-560 mod

Bill-p

Re: Bill-p HE-560 mod

Marvey

Re: Bill-p HE-560 mod

Bill-p

Re: Bill-p HE-560 mod

Thujone

Re: Bill-p HE-560 mod

Hands

Re: Bill-p HE-560 mod

Bill-p

Re: Bill-p HE-560 mod

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Author Topic: Bill-p HE-560 mod (Read 11836 times)