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Handmade copy of Purifi SPK5 design on UK eBay

sgoldwin

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I built three pairs of SPK5 speakers close to the Purifi published SPK5 spec. I am selling two pairs and keeping one. If there is demand for this I will keep building them.

Pictures, description and price on https://www.ebay.co.uk/itm/303634158293

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Thomas savage

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Matias

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Yes, testing would be a great way to promote it.
 

jhaider

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Curious - why speakONs on the PCB for the individual drivers? While I do not think there is an equal or better option for amp-to-speaker wiring, it seems to me that simple quick disconnect tabs for PCB to drivers makes more sense.
 
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sgoldwin

sgoldwin

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The obvious answer, on the speakers I'm making, is that's the way Purifi did it and I'm trying to build a technical copy. Purifi has identified speakONs as the lowest distortion connector but I do not know if they included simple fastON connectors in that analysis.
 

jhaider

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The obvious answer, on the speakers I'm making, is that's the way Purifi did it and I'm trying to build a technical copy.

Fair enough.

Purifi has identified speakONs as the lowest distortion connector but I do not know if they included simple fastON connectors in that analysis.

I doubt they did, and that's not possible anyway given that there fastON terminals inside the speakON connector. :)

My view is performance-wise it does not matter, as long as the boards fit into the cabinet. I was just curious because that's a multiple-times-more-expensive way to connect drive units to a PCB, with more points of failure than a faston or barrier strip.
 
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Great looking speakers, looks like you forgot to enable bidders from the usa
 

yourmando

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I have a new listing on eBay for 6 copies of the SPK5 speaker, also available through my website celuaris.com.

And, I have submitted the speaker to amirm for testing.
Curious why have you left the crossover external? The SPK5 demo has it this way so that speaker designers/evaluators can swap in their own crossovers or tune parameters easily.
 

ironhorse128

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What I do not understand is why there is only one speakon connection per speaker. The crossover is external, so there should be two connections going to each speaker. What am I missing?
 

yourmando

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What I do not understand is why there is only one speakon connection per speaker. The crossover is external, so there should be two connections going to each speaker. What am I missing?
It uses a 4 pole Speakon connector.

Speakons come in 2-pole, 4-pole...even 8-pole. I have a single 8-pole Speakon going to my speakers from the active x/o and amp.
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AudioJester

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Very nice. Guess you could use a minidsp 2x4 and ditch the passive crossover and use a 4 channwl amp?
 

sq225917

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Make the product image on the homepage a url link straight to the product in the shop
 
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