[FullRangeMan]

Looks a 70V line transforner used in commercial speakers. IMO

[KTS]

This discussion is super interesting, but well beyond my ability to comprehend the technical side, would someone be able to purchase the jumpers and attach between the crossover and the binding post inside the speaker? If you purchase from the manufacturer no harm done.

[Mike B.]

The patent Maty posted is a not HARP. On a side note, Rochelle Salt and Tourmaline power are effective in absorbing RF noise IMO. 

[Danny Richie]

The patent Maty posted is a not HARP. On a side note, Rochelle Salt and Tourmaline power are effective in absorbing RF noise IMO.

The HARP device really doesn't address RF or EMI. It actually defuses or damps out the resonances of the cable and dielectric material.

[lifewithmusic]

Danny, your website doesn't appear to show any products with teh HARP device technology. Did you stop using it?

[Danny Richie]

Danny, your website doesn't appear to show any products with teh HARP device technology. Did you stop using it?

We do not sell or offer them.

They are exclusively used in our Allie and Maddie model speakers that are in production right now.

[1OldRocker]

They are exclusively used in our Allie and Maddie model speakers that are in production right now.

Also in the X-LS Encore Extreme, is that correct?

[Danny Richie]

Also in the X-LS Encore Extreme, is that correct?

That is correct.

[Dahodevil]

I’ve heard the Harp device at Danny’s place. He can clip them on and unclip them. The difference is astonishing.  It’s exactly as he describes it. Without the harp device, his system reveals so much detail. You can hear all the instruments clearly placed. Once he connects the Harp device it’s like all the fuzziness between the instruments goes away and everything is so crystal clear and separated.  It is not subtle.

[Beerbellydad]

We do not sell or offer them.

They are exclusively used in our Allie and Maddie model speakers that are in production right now.

I understand why this would be a proprietary offering. Hearing about the benefits they add, would you consider offering them in the future to known GR customers that have purchased kits from you? I have a few sets of GR speakers and would definitely consider hotrodding a pair or two. (even privately, and not offered on the website)

[Danny Richie]

I understand why this would be a proprietary offering. Hearing about the benefits they add, would you consider offering them in the future to known GR customers that have purchased kits from you? I have a few sets of GR speakers and would definitely consider hotrodding a pair or two. (even privately, and not offered on the website)

I can't. I can only offer then in a product.

[nrenter]

US 6,545,213 patent / Caelin Gabriel (Shunyata Research)

Method and product for reducing distortion in an audio or home theater cable
https://patents.google.com/patent/US6545213B1/en

[PDF] https://patentimages.storage.googleapis.com/ce/d6/8b/e0af137bdb7731/US6545213.pdf

Isn’t this what Purist Audio Design does?