Directiva r2 monitor prototype build

[RickS]

After drilling all the final holes, the cabinet gets a dusting off and wipe down before I add driver gasketing tape to the inner edge of side panel seams…

Doing the same for the other side, I use a hole punch to clear holes where screws will hold in place. Missed the pic, but drilled three holes in each side with a countersinking bit. Using some wood screws, I attach the side panels…

The shell is now ready for drivers and wiring…

 

[abdo123]

@Rick Sykora you should consider a career in sex work just because of how effortlessly you've been teasing us for the last month and a half!

 

[RickS]

@Rick Sykora you should consider a career in sex work just because of how effortlessly you've been teasing us for the last month and a half!

Not my intention, but I have had a mix of other projects, weather and family obligations that have slowed my pace...

The biggest hurdle is getting enough space to get my measurement system back in place. It was torn down when we had some out-of-town visitors and then filled with the contents of another room as we got some interior painting done.

Am planning to put the blank sides on r2 today and (hopefully) get the baseline measurements done on it.

Thanks for your patience!

 

[abdo123]

Not my intention, but I have had a mix of other projects weather and family obligations that have slowed my pace...

The biggest hurdle is getting enough space to get my measurement system back in place. It was torn down when we had some out-of-town visitors and then filled with the contents of another room as we got some interior painting done.

Am planning to put the blank sides on r2 today and (hopefully) get the baseline measurements done on it.

Thanks for your patience!

I hope I didn’t sound too entitled, that was really not my intention with the comment.

Just wanted to express my anticipation.

 

[RickS]

I hope I didn’t sound too entitled, that was really not my intention with the comment.

Just wanted to express my anticipation.

No problem. Am moving slower than I hoped, but r2 is more complex and will take more measurements too.

Before I was paced by getting something to Amir as well. With his flooding issues, know he will not be able to get to it as soon either.

 

[RickS]

Took the vented side panels off and used them as drill hole patterns to mark the solid sides and attached them…

I added a gasket for the tweeter, completed the wiring and put in just enough damping to fill the cabinet. Nothing extreme as the vented will need, but just as you would use for a typical sealed speaker.

Mounted the drivers and here it is…

All ready for a round of measurements tomorrow (as long as the reinstated test rig proves out).

 

[RickS]

Had heavy winds yesterday and rain overnight, testing may have to wait. Woke up to power outage. Have about 20 minutes left on UPS before I lose my house internet.

 

[RickS]

Had heavy winds yesterday and rain overnight, testing may have to wait. Woke up to power outage. Have about 20 minutes left on UPS before I lose my house internet.

Power is back on!

One advantage of being an early riser and reporting the outage right away. Did not see where but the report said tree damage. My wife slept through it so just slowed me down a bit.

 

[TimVG]

Looking nice, Rick!

 

[D!sco]

Sell ‘em as sealed PC speakers with a 7” sub already

 

[RickS]

The room is set back up along with a new mic boom stand. After aligning things, decided I needed a way to help do more accurate iterations, so I ordered a laser level that can be used along the floor too. It is this one…

https://smile.amazon.com/dp/B07Z4FYHS3?ref=ppx_yo2_dt_b_product_details&th=1

The laser level should arrive later today. Will allow me to get the electronics in place and take some test measurements to ensure new parts check out (and hopefully improve accuracy). One new challenge is the shallow depth of the monitor. It may require some extra securing to ensure it does not shift in place as the platform is rotated.

 

[RickS]

The new mic stand and laser level are great! Got everything nicely aligned and made some test measurements for calibrations using r1 speaker. Swapped in the r2 and did initial on-axis and created a nice quick and dirty LR4 crossover. That was yesterday so today decided to try off-axis.

Since we are doing a cardioid design, had already prepped to do measurements beyond 90 degrees off-axis. Started the spin and went pretty well initially. When I hit 90, got some major rippling. The realized that r2 is so shallow that now I had a back ledge. I put in a workaround, but will need something more precise to use. Already have designed a new stand but am off to hardware store to get parts!

 

[Trouble Maker]

You didn't have enough scrap lying around for that, what kind of woodworker are you?

 

[RickS]

You didn't have enough scrap lying around for that, what kind of woodworker are you?

Lol, am a woodworker who values his wood and his time!

I considered making the new stand out of wood, but had some other useful parts around that are inexpensive, sturdier and more flexible. Here is the new stand (not yet fully assembled)…

So for $6 for a pair of PVC flanges, was able to use various lengths and types of tubing (and some scrap MDF) to produce a suitable stand. Will have to trim the upper flange, but would have had to do the same for wood anyway.

 

[jcr159]

Lol, am a woodworker who values his wood and his time!

I considered making the new stand out of wood, but had some other useful parts around that are inexpensive, sturdier and more flexible. Here is the new stand (not yet fully assembled)…

View attachment 191502
So for $6 for a pair of PVC flanges, was able to use various lengths and types of tubing (and some scrap MDF) to produce a suitable stand. Will have to trim the upper flange, but would have had to do the same for wood anyway.

Looking nice! The boys at Possum Lodge would be proud!

I think you are missing a lazy susan on there!

 

[RickS]

Looking nice! The boys at Possum Lodge would be proud!

I think you are missing a lazy susan on there!

Not sure whether to be honored or offended?

Btw, the black disk on the bottom is a lazy susan.

 

[jcr159]

Not sure whether to be honored or offended?

Btw, the black disk on the bottom is a lazy susan.

lol, joke's on me! guess my optometrist is gonna get an earful! it's totally his fault...

 

[mightycicadalord]

Looking nice! The boys at Possum Lodge would be proud!

I think you are missing a lazy susan on there!

I'm a man but I can change,
If I have to,
I guess.

 

[Madjalapeno]

So for $6 for a pair of PVC flanges, was able to use various lengths and types of tubing (and some scrap MDF) to produce a suitable stand. Will have to trim the upper flange, but would have had to do the same for wood anyway.

So you making some LXMini's!

 

[RickS]

After some redesign for proper center axis, here is the latest…

Now that the speaker plaform is so small, am redoing the wiring too. Have to ensure there is minimal stress on the speakon connector. Also considering attaching speaker directly to top plate.