# The Rubies
**URL:** https://discourse.midwestaudio.club/t/the-rubies/733
**Category:** DIY
**Tags:** wavecor, sb-acoustics, passive-xover, 2-way
**Created:** [August 24, 2026, 11:42pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733 "2026-08-24T23:42:48Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [August 24, 2026, 11:42pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/1 "2026-08-24T23:42:48Z")
Coming this fall. This project could wind up as “how to pay too much for the Chachos” - but parts are on hand and I have some reclaimed redwood siding from my parents old house that needs a new purpose. A baffle was cut this weekend, so here is a sneak peek. Drivers are SB Acoustics SB12CAC and a little Wavecor TW22 tweeter.
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### Author:  [@a4eaudio](https://discourse.midwestaudio.club/u/a4eaudio)
#### Post date: [August 24, 2026, 11:55pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/2 "2026-08-24T23:55:18Z")
Oooooooh, that should work out nicely!
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### Author:  [@Wolf](https://discourse.midwestaudio.club/u/Wolf)
#### Post date: [August 25, 2026, 12:14am UTC](https://discourse.midwestaudio.club/t/the-rubies/733/3 "2026-08-25T00:14:49Z")
Great Lil midbass!
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### Author:  [@PWRRYD](https://discourse.midwestaudio.club/u/PWRRYD)
#### Post date: [August 25, 2026, 9:16pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/4 "2026-08-25T21:16:09Z")
So my Chachos are now your “standard”? Got it, cool!
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### Author:  [@Eggguy](https://discourse.midwestaudio.club/u/Eggguy)
#### Post date: [August 25, 2026, 11:14pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/5 "2026-08-25T23:14:04Z")
Love that tight grain
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [August 26, 2026, 1:23am UTC](https://discourse.midwestaudio.club/t/the-rubies/733/6 "2026-08-26T01:23:35Z")
These will be very close to the same size, bass extension, etc, so the Chachos will be the natural standard to compare them to. You should bring them. I still cherish the memory of sitting next to Brad Bagby at Indy listening to the Quarks and Helium’s and comparing them.
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [August 26, 2026, 1:26am UTC](https://discourse.midwestaudio.club/t/the-rubies/733/7 "2026-08-26T01:26:32Z")
Me too. The older boards were from the 1950’s and had very tight grain spacing. The newer ones (late 70’s) weren’t as good in that regard
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### Author:  [@Wolf](https://discourse.midwestaudio.club/u/Wolf)
#### Post date: [August 26, 2026, 8:16am UTC](https://discourse.midwestaudio.club/t/the-rubies/733/8 "2026-08-26T08:16:50Z")
“Brad” Bagby?
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [August 26, 2026, 1:01pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/9 "2026-08-26T13:01:34Z")
Jeff Bagby. 😵💫. Brad Bagby was a manufacturing Engineer I worked with for a number of years, so I still get their names mixed up.
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### Author:  [@Wolf](https://discourse.midwestaudio.club/u/Wolf)
#### Post date: [August 26, 2026, 2:36pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/10 "2026-08-26T14:36:53Z")
Wasn’t sure if you meant his brother Randy or not.
Understood…
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [September 6, 2026, 11:40pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/11 "2026-09-06T23:40:58Z")
Making some cabinet progress.
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [September 7, 2026, 7:50pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/12 "2026-09-07T19:50:48Z")
Oiled up.
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### Author:  [@PWRRYD](https://discourse.midwestaudio.club/u/PWRRYD)
#### Post date: [September 7, 2026, 7:56pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/13 "2026-09-07T19:56:38Z")
I’ll bring my Chachos to Ankeny so you can rub my face in the dirt!
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [September 7, 2026, 9:15pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/14 "2026-09-07T21:15:33Z")
I’ll bring some refreshments so we can both cry in our beer if needed. Either way, we’ll have beer…
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### Author:  [@Turn2](https://discourse.midwestaudio.club/u/Turn2)
#### Post date: [September 7, 2026, 9:39pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/15 "2026-09-07T21:39:46Z")
I’ve got a pair of Micro-C’s close by if you’d be interested in that comp.
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [September 7, 2026, 9:51pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/16 "2026-09-07T21:51:00Z")
That sounds like fun.
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### Author:  [@KenRhodes](https://discourse.midwestaudio.club/u/KenRhodes)
#### Post date: [September 7, 2026, 11:27pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/17 "2026-09-07T23:27:25Z")
curious your thoughts on those Micro C’s?
Love those ceramic woofers.
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### Author:  [@Turn2](https://discourse.midwestaudio.club/u/Turn2)
#### Post date: [September 7, 2026, 11:49pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/18 "2026-09-07T23:49:52Z")
I’ve had mine in my office mounted on the wall above the ‘puter all summer. The CAC is very good. I LOVE the SB26STCN more than the SB19. I’d imagine the Wavecor Scott is using will also be a great choice to go with the CAC. The combo needs a sub for help, ideally.
To clarify, the Micro-C’s use the SB19 tweeter. They are fine. My experience tells me the 12CAC paired with the STCN could be just a bit better. My opinion.
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### Author:  [@ScottS](https://discourse.midwestaudio.club/u/ScottS)
#### Post date: [September 18, 2026, 8:43pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/19 "2026-09-18T20:43:36Z")
Ready for measurements and crossover work.
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### Author:  [@Turn2](https://discourse.midwestaudio.club/u/Turn2)
#### Post date: [September 21, 2026, 9:45pm UTC](https://discourse.midwestaudio.club/t/the-rubies/733/20 "2026-09-21T21:45:12Z")
I dug into the dimensions and tuning on my freelance Micro-C’s vs. the kit version. The prefab cabinets for the kits look to be 0.1 cu.ft. and are slot ported. Key points:
I chose to follow Madisound’s recs for the SB12CAC and built a 0.15 cu. ft. box with a 1"x3.5" round rear port for a tuning of ~58 Hz. XO has the same values as the kit, from parts on hand.
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