Introducing: The Pit Vipers (Ooh Yeah!!!)

[Paul K.]

I did model what Paul C. built and documented. The 2.83v/1m sensitivity came out to ~93 dB SPL, but that did not include baffle step compensation, so the final sensitivity should be about 89-90 dB SPL I'm estimating. My modeling also showed Paul C's intentions in that around 150 Hz, the output starts rising as frequency decreases, ending up almost 3 dB higher at 50 Hz or so. Paul C. did state after I sent him these modeling results that they were pretty much what he got.
Paul K.

[rpb]

What would you estimate the 2.83v sensitivity of the speaker.

[invaderzim]

I know these are referred to as 'party speakers' but how do they do at lower volume levels? I know there is the whole thing with how we perceive music at lower volumes but some of the speakers I've done sound good at low, late night levels and others sound really thin.

[Paul K.]

I know. Just kidding around. BTW, what is the resistance value of the 5.0-mH inductor in the woofer's crossover? I only ask because it affects Qts, which in turn affects the optimum system tuning frequency for the TL I've modeled for you.
Paul

[Wolf]

I couldn't get a .zip file to upload to the InDIYana site for the last challenge. Basically told me it was not supported.

I think i used to know how to attach a link to things, but then the interface changed and it's a lot different now. If i figure it out, I'll let you know.

[Serenitynow]

Oh , one more request.
Would you please post a pic of your completed crossover board for visual layout reference ?
Thanks again

[Serenitynow]

💥💥💥💥
thank you paul
that's perfect

[Paul Carmody]

I'm not done with you yet, Mr. Kittinger! I just wanted to get this version out the door first. We will speak soon!

[Paul Carmody]

Bill of Materials here

[Paul Carmody]

Oops!! Thanks for the heads-up. Fixed.

[Paul Carmody]

Yeah, so Google Sites has this stupid thing where I don't know how to make an image a clickable link. The workaround to ALL the photos on my site is to either Right-Click -> Save As... or Right-Click -> Open in a New Tab.

If anyone out there is a Google Sites whiz and knows how to fix this, I'm all ears.

[djg]

On my Windows pc, I "save image as" a jpg and then I can open it and it's larger, legible and expandable. Never had a Chromebook. Google is evil. Bill gates too, but not so much, he just wants us to eat bugs.

[Serenitynow]

I'm not building Pauls design. I most likely would use drivers I have on hand.

oh ok. I understand

[rpb]

Why wouldn't you need to know the values of the components ?

I'm not building Pauls design. I most likely would use drivers I have on hand.

I'm a xo nerd. I just like to see how others choose to design.

[Serenitynow]

With my chrome book computer, the xo you show stays small, and I can't read any of the values at all. I don't need them, but I like to look.

Why wouldn't you need to know the values of the components ?