Started my new custom SDA's today

engtaz

BaggedLancer wrote: »

These will be at polkfest right?

I second that even if I don't make it.

ben62670

engtaz wrote: »

I second that even if I don't make it.

No way man. I love the thought of bringing these to PF, but it is hard to get these suckers under a 6'6" door! way to heavy. If I had help, and an enclosed trailer I would possibly consider it, and the host of PF would have to OK this, and I need a solid 40 amps at 120v to power these suckers!

engtaz

I know someone you know who has a trailer that brought me some 3.1's LOL a fridge doolly would work. LOL Just tring to help.

jakelm

Ever thought of spikes? And are they going to stay without a grill?


I envy you. Way to go buddy!!

ben62670

jakelm wrote: »

Ever thought of spikes? And are they going to stay without a grill?


I envy you. Way to go buddy!!

Yes I definitely need to decouple the speakers from the concrete slab, but trying to set thees suckers up on spikes would be very tough. I was looking at using some rubber pads designed for pro speakers.
Ben
No grill for now. I like to watch the drivers:D

jakelm

I think trim with neon lights that flash with the music and a disco ball would be cool.

PolkThug

Are the subs isolated from the the rest of the drivers, or do they share cabinet volume?

jakelm

PolkThug wrote: »

Are the subs isolated from the the rest of the drivers, or do they share cabinet volume?

They are passive, so they share. From what I understand, the deminsion drivers and stereo drivers or in seperate enclosures, with 2 PR's a peice.

ben62670

jakelm wrote: »

They are passive, so they share. From what I understand, the deminsion drivers and stereo drivers or in seperate enclosures, with 2 PR's a peice.

Correct the stereo and dims are in 2 seperate enclosers.;)

joeparaski

Ben, any plans on offering or selling plans to these beautiful speakers? Although I can hardly nail 2 pieces of wood together, my brother is an ace at cabinet making and carpentry stuff.

Joe

ben62670

joeparaski wrote: »

Ben, any plans on offering or selling plans to these beautiful speakers? Although I can hardly nail 2 pieces of wood together, my brother is an ace at cabinet making and carpentry stuff.

Joe

I don't know how Polk would feel about me doing something like that. I'm know you could buy the drivers from Polk. I don't think they would have a problem with you building them. The SDA technology is owned by them. As for plans for the boxes I could set you up with something like that.

Ben

joeparaski

Who said I want the SDA technology...I want the BDA technology..(Ben's Dimensional Array)

Joe

PS....I'm driving to Miami at the end of the month to board a cruise ship for a week. I could drop by in Ft. Lauderdale on my way back if it's ok with you.

Joe

ben62670

joeparaski wrote: »

Who said I want the SDA technology...I want the BDA technology..(Ben's Dimensional Array)

Joe

PS....I'm driving to Miami at the end of the month to board a cruise ship for a week. I could drop by in Ft. Lauderdale on my way back if it's ok with you.

Joe

Anyone is welcome to swing by. It's still SDA:) I just implemented it in a different way:D

ben62670

Well I had company today. My friend the cabinet maker stopped by. He used to own an audio shop, and is very critical. He has heard my other speakers before, and he always has a comment about what is wrong with them. I dragged him over today, and got the usually "Holy $hit". I turned on some DS BIA and played them for a couple. He was amazed at how good they sounded. He told me that when he first saw all the drivers he didn't think they would sound right. I could see him almost shaking his head, and he had a big grin on his face:D I thought for sure he was going to say something was off. I have had him stop in several times to check on my progress as I upgraded. This time no complaints:)

Time to rest
Ben

hearingimpared

On the Seventh Day the Lord rested. . . maybe now you can!

ben62670

hearingimpared wrote: »

On the Seventh Day the Lord rested. . . maybe now you can!

OK enough resting. Its time to build some SDA 1C's. I already have the parts. Time to get kick-en on the project. I am building these for a buddy of mine. I have known him ever since I can remember. I know he will take care of them. When I am gone(Doctors don't really know whats going on when they estimate) it'll give him something to cherish. His Dad left him an old tube amp, and some real old pioneers. Well his Sis got his Pioneers, but he still has the tube amp. Stuff like that has sentimental value to him.
Off to work:)
Ben

engtaz

Are you now starting a SDA 1C build thread?

Take care.

ben62670

engtaz wrote: »

Are you now starting a SDA 1C build thread?

Take care.

ya that sounds like a good idea

mox

what the heck is this thing for? The next WoodStock? Your gonna make all the hippies deaf.

ben62670

mox wrote: »

what the heck is this thing for? The next WoodStock? Your gonna make all the hippies deaf.

Its not so much about how loud as it is sound stage, imaging, and room filling sound;)

ben62670

Well I have been driving my speakers with an electronic crossover (car audio), and have decided to go passive. I like the electronic crossover idea, but to get a HiFi active XO cost big bucks. Also with the array of tweeters it needs to be supplemented with passive XO parts anyway. I ordered the parts the other day, and they should be in soon. I am not sure if I will continue to tri amp, or go to bi amp with my setup. My Outlaw PrePro has a separate room volume control that works with everything but SACD so I can control the SDA effect from my couch. I hope to get on this soon.
Ben

jakelm

We are all here with you Ben.:)

ben62670

jakelm wrote: »

We are all here with you Ben.:)

Thanks again for your motivation young whip cracker:D
Back to work!

dudeinaroom

gees man u need a job

ben62670

Plus various little inductors.

Mazeroth

How are you designing your passive crossover? Which software package and measurement equipment?

ben62670 wrote: »

Well I have been driving my speakers with an electronic crossover (car audio), and have decided to go passive. I like the electronic crossover idea, but to get a HiFi active XO cost big bucks. Also with the array of tweeters it needs to be supplemented with passive XO parts anyway. I ordered the parts the other day, and they should be in soon. I am not sure if I will continue to tri amp, or go to bi amp with my setup. My Outlaw PrePro has a separate room volume control that works with everything but SACD so I can control the SDA effect from my couch. I hope to get on this soon.
Ben

jdhdiggs

dudeinaroom wrote: »

gees man u need a job

Or a girl!

ben62670

I am using my wee little brain. Anyone smell smoke? I am basically copying, and modifying Polk's Passive XO. I don't think there are any programs out there that could design an array of domes like this. I am trusting in the vast amounts of time, and money that Polk has invested in the 1.2TL XO's. My tweets are almost the same electronically as the SL3000 in the frequency range that is affected by the XO components.

ben62670

jdhdiggs wrote: »

Or a girl!

I have enough complications in my life. If you saw my man cave you would understand. You can take the trash out the trailer, but you can't take the trailer out the trash!:D

ben62670

OK did a little passive XO work today. I was working on the lows. I am running 4 ohms in my arrays, and wanted the higher XO of the 1.2TL's. I am using 1mh Jantez 15 GA, and 27 uf solens, I need to work on the other side soon. I am not looking forward to doing the highs. Lows easy. Highs modified from scratch not fun. It is nice to get the active out of the loop for the lows. My Pre is showing its colors better. the active XO is pretty ghetto. It looks good on paper, but less dynamic, and clear. The bass is cleaner, and more of the punch that I was missing. Also the vocals are less colored. I half blamed it on the XO, highs, and the AMP (GFA7500).
Back to work!