SDA CRS+ With an External Crossover Twist.... :-)

Toolfan66

Well I decided to pull out my CRS+'s and finally put in the Jantzen Inductors, and the 16mh Solen Inductor.. The Jantzen's I have had for 2+ years..

Well I have decided to build a new set of stands that will house the crossovers, 16mh inductor, as well as the binding post cup.

I will use the Neutriks to connect them together..

Why am I doing this? ah because I have the means to do so, and it should be a fun project, also I have been wanting to build a set with external crossovers..

I'm thinking the stands will be built out of steel, and the case to house the crossovers will be aluminum lined with dynamat, but will bolt to the stand, this should free up the air space in the cabinet.
I'm not really expecting anything out of this, if there is an improvement, Great!! if not, no big deal, it will still be a fun project...

I will update as I go!!!

Dennis Gardner

I like it! Keep us posted.

westmassguy

You're a crazy man Larry. Be sure to put plenty of space between the inductors and any ferrous or magnetic metals. Can't wait to see the results from the Steel Master.

pitdogg2

westmassguy wrote: »

You're a crazy man Larry. Be sure to put plenty of space between the inductors and any ferrous or magnetic metals. Can't wait to see the results from the Steel Master.

Would Aluminum case and Dynamat negate that need? Would Mu metal be a better option?

http://www.ebay.com/itm/2pc-Ultraperm-80-Metal-Shield-MuMetal-Mu-Metal-Permalloy-Alloy-Shielding-Sheet/150626977011?_trksid=p2141725.c100338.m3726&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20150313114020&meid=b86d924366f4410f95d48db393337781&pid=100338&rk=1&rkt=21&mehot=pp&sd=160613440162

westmassguy

Could. Not familiar with it

Toolfan66

pitdogg2 wrote: »

westmassguy wrote: »

You're a crazy man Larry. Be sure to put plenty of space between the inductors and any ferrous or magnetic metals. Can't wait to see the results from the Steel Master.

Would Aluminum case and Dynamat negate that need? Would Mu metal be a better option?

http://www.ebay.com/itm/2pc-Ultraperm-80-Metal-Shield-MuMetal-Mu-Metal-Permalloy-Alloy-Shielding-Sheet/150626977011?_trksid=p2141725.c100338.m3726&_trkparms=aid=222007&algo=SIC.MBE&ao=1&asc=20150313114020&meid=b86d924366f4410f95d48db393337781&pid=100338&rk=1&rkt=21&mehot=pp&sd=160613440162

Looks interesting!! Thanks for the link!!

Toolfan66

westmassguy wrote: »

You're a crazy man Larry. Be sure to put plenty of space between the inductors and any ferrous or magnetic metals. Can't wait to see the results from the Steel Master.

Yep that's the plan!!

Nightfall

Why not something like plexiglass over an aluminum base so you can see the crossover?

Very cool, Larry, can't wait to see it.

Toolfan66

Nightfall wrote: »

Why not something like plexiglass over an aluminum base so you can see the crossover?

Very cool, Larry, can't wait to see it.

I actually thought about that but using acrylic..

Nightfall

I think Plexiglas is acrylic.

Toolfan66

Acrylic is stronger, well according to Progressive plastics anyway..

Edit: I might be thinking Lexan..

pitdogg2

Nightfall wrote: »

I think Plexiglas is acrylic.

Correct


http://www.hydrosight.com/acrylic-vs-polycarbonate-a-quantitative-and-qualitative-comparison/

TennMan

If you are looking for strength use Lexan. It's much stronger than plexiglass. If you get mad at the crossovers and decide to beat them out with a baseball bat the cabinet will break before the Lexan does.

xschop

You can heat form small polycarbonate pieces in a home oven too.
I'm not sure how hot these resistors get, but be careful close to polycarbonate as it will sweat Bis-A and leak on your electronics.

Toolfan66

I have already decided to not use lexan or plexiglass..

Toolfan66

I have the material being cut, I ordered all the Neutrik's, Supra Rondo wire, and connectors..

I am also making new Binding Post plates, and Brass Spikes..

This stuff adds up fast when you go to ordering it..

I would really like to have the veneer re-done on the cabinets while i have them apart, I just don't know where to go to have it done..

Toolfan66

So I want to do a left and right layout, anyone see this being an issue? I'm actually thinking about putting a wall between the 16MH and the crossover board, not sure if it's necessary just came to mind, keeping them separated..

EndersShadow

@Toolfan66

Are you planning on laying them flat or stacking them vertical like amp boards in a single enclosure or each crossover in its own enclosure.

I saw a skiing ninja modification of a X-static speaker that put the crossover on top of the enclosure but had ball bearings pass the signal through the enclosure and it was pretty bada$$ looking.

Toolfan66

Each crossover will be in its own enclosure as part of the stands, directly under the CRS cabinets...

They won't be laying flat, they will be mounted at a 45 deg angle in the case, because of the way the case will be designed to look good and fit the design of the stands..

EndersShadow

Toolfan66 wrote: »

Each crossover will be in its own enclosure as part of the stands, directly under the CRS cabinets...

They won't be laying flat, they will be mounted at a 45 deg angle in the case, because of the way the case will be designed to look good and fit the design of the stands..

Awesome man. I'm sure they will look great. Anything you touch turns to gold.

Toolfan66

westmassguy

I hate you..... those look awesome!

Mystery

Great job! Now can I buy them back when you're all done?

Toolfan66

These weren't yours, I have had these for a few years now..

pitdogg2

freakin master piece's .......I'd black chrome them

Mystery

Toolfan66 wrote: »

These weren't yours, I have had these for a few years now..

Hehe... still can buy it.

Dennis Gardner

Just a personal thought......I might try to relocate that long resistor along the back of the board to clean up the look. I have never liked how those look cramped or wedged onto boards at odd angles.

Toolfan66

Dennis Gardner wrote: »

Just a personal thought......I might try to relocate that long resistor along the back of the board to clean up the look. I have never liked how those look cramped or wedged onto boards at odd angles.

I agree, that's the only thing I don't like about the Dueland Resistors, but I will probably just leave it, it's been that way for a few years now..

hytekrednek

Nice work making those stands. You could probably sell many pairs of those. I know I for sure would buy a pair for my SDA-CRS speakers. You have some very fine skills sir.

agfrost

Them's nice, Larry. (But you didn't need me to convince you of that.)

Toolfan66

Thanks guys, did some final clean up on them, now I need to make the case that will house the crossovers..