Anyone built the open baffles yet?

danm · « **Reply #20 on:** 25 Feb 2006, 03:59 am »

Quote from: sl_1800

I have not built any of GR's speakers but I did hear the tall open baffle at GR last Saturday. They are a really good speaker and at the price of the kit they are an amazing deal. I just built a new pair of speakers, if I had not, then I would be after a set of the open baffles from GR.

Thanks for the response! I'm going to bump this thread for anyone else's input who has built and/or heard these open-baffle gems

danm · « **Reply #21 on:** 31 Mar 2006, 09:25 pm »

Danny, I know you're super busy so I don't want to sound like a skipping CD,............. BUT......... any idea when the shorty and center open baffle kits will be made available?

Danny Richie · « **Reply #22 on:** 1 Apr 2006, 01:42 am »

You mean like one of these?

I have a pair of them here right now. One is loaded with drivers and is in the testing room. I have a slight issue to solve with BG and the latest Neo 3 pdr and then I'll get it knocked out.

After this one then I'll start on the center channel.

TomW16 · « **Reply #23 on:** 1 Apr 2006, 02:25 am »

Looks great Danny. I am wondering why the top MTM section isn't completely open. Does the top section require extra support or do most people prefer the look of a solid box?

Keep up the great work!

Tom

danm · « **Reply #24 on:** 1 Apr 2006, 03:38 am »

Quote from: Danny

You mean like one of these?

I have a pair of them here right now. One is loaded with drivers and is in the testing room. I have a slight issue to solve with BG and the latest Neo 3 pdr and then I'll get it knocked out.

After this one then I'll start on the center channel.

Yummy! Thanks for the update:) When they're ready, I'll probably just order three of the mtmww's, I'm planning on doing a vertical center with a shorter and much deeper bass section so it will clear the bottom of my screen.

Danny Richie · « **Reply #25 on:** 1 Apr 2006, 02:08 pm »

Quote

Looks great Danny. I am wondering why the top MTM section isn't completely open. Does the top section require extra support or do most people prefer the look of a solid box?

It will perform as if it is completely open. The back wall is far enough away and layered with open cell foam as are the top and bottom areas of the open section.

For one, it adds structural strength to the front baffle.

It hides the back of the drivers from view.

It finishes out the look of the speaker so that it doesn't look like a front baffle just sticking up there...

It also matches the larger model that has to be that way because it supports an upper section.

laserman · « **Reply #26 on:** 1 Apr 2006, 08:49 pm »

Danny, they look marvelous!

Thank you for the update,
Lou

klh · « **Reply #27 on:** 18 Apr 2006, 03:57 pm »

Danny... they look beautiful

. Can we get an update of progress on this speaker as well as the center channel and the AV-1rs PDR?

Danny Richie · « **Reply #28 on:** 18 Apr 2006, 04:15 pm »

I have completed testing on the one pictured and today I am assembling the crossover networks for a pair of them. In fact I have been working on that this morning and just took a break to check e-mails before going out for some lunch.

I did something with the network on these that might even give them an edge over the larger one in the midrange area. We'll see soon for sure. If so I may have to revisit the taller one to see if this tweak can be implemented into it. Another thing this tweak did was make the impedance smoother.

I have a larger model in Rosewood to build out too and I will see what I can do with it in making it like this one. It's next.

Then I can move on to the WMTMW center and the surrounds.

Lots of work ahead...

danm · « **Reply #29 on:** 19 Apr 2006, 06:39 pm »

OK, where's the order form?

I'll take three shorty's please

Cacophonix · « **Reply #30 on:** 19 Apr 2006, 09:50 pm »

The tweeters have been sorted out then?
Sweet!

Danny Richie · « **Reply #31 on:** 20 Apr 2006, 02:53 am »

Quote

OK, where's the order form? I'll take three shorty's please

I'll take orders shortly. I'd like for it to burn in for a week or so and see if I decide it needs anything.

Quote

The tweeters have been sorted out then?

The tweeter problem has been sorted out.

First impressions of the pair that is now up and playing is VARY good. These speakers do everything so well it is just unbelievable. I am excited.

Nick V · « **Reply #32 on:** 20 Apr 2006, 05:19 am »

How low do they go with stll decent output? Will they need a sub for reinforcement for music material?

Danny Richie · « **Reply #33 on:** 20 Apr 2006, 12:28 pm »

Quote

How low do they go with stll decent output? Will they need a sub for reinforcement for music material?

Tuning frequency is 39.8Hz. This will make it -3db down in the 42Hz range. So for the first octave you will need a sub.

In my room it sounds pretty solid to the mid to low 40's.

Curly Woods · « **Reply #34 on:** 20 Apr 2006, 12:35 pm »

Quote from: Danny

Quote
How low do they go with stll decent output? Will they need a sub for reinforcement for music material?

Tuning frequency is 39.8Hz. This will make it -3db down in the 42Hz range. So for the first octave you will need a sub.

In my room it sounds pretty solid to the mid to low 40's.

Danny,

Won't room gain increase the low frequency cutoff as a rule?

Danny Richie · « **Reply #35 on:** 20 Apr 2006, 12:45 pm »

Quote

Won't room gain increase the low frequency cutoff as a rule?

Yep. With room gain a lot of rooms will have good output into the low 30's.

My room is pretty large and does not offer a lot of room gain. In my room I get some bottom end lift but it is more like a decreased roll off rate than any big gains in output.

Hey did Gary contact you about getting me some more quilted Maple? We decided that when we give my amps the face lift to the Quilted Maple that we'd go ahead an add a quilted Maple front face plate too. So I'll need some more. Gary can get you the size needed.

BobRex · « **Reply #36 on:** 20 Apr 2006, 01:06 pm »

Danny,

Did you ever come up with a price for the larger version assembled?

Curly Woods · « **Reply #37 on:** 20 Apr 2006, 03:29 pm »

Quote

Hey did Gary contact you about getting me some more quilted Maple? We decided that when we give my amps the face lift to the Quilted Maple that we'd go ahead an add a quilted Maple front face plate too. So I'll need some more. Gary can get you the size needed.

No he hasn't, but we are about ready to start making the faceplates/side panels for the new Dodd preamps and power supply.

We can find something that matches what you already have I believe Danny.

El Borbah · « **Reply #38 on:** 24 May 2006, 12:38 am »

Has ayone who bought a kit gotten far enough along to have some construction photos yet?

I 've got a couple of boxes full of components and some MDF in the garage itching to be turned into saw dust

. Hoping to get started on cabinet construction this weekend.

Danny- Would it be problamatic to eliminate side panels 3 through 6 and make up the volume by extending the depth of the sub enclosure portion? I would like to slim it up a bit, but I'm not sure if the approx. 4 inches that would leave behind the driver would be enough room for it to breath properly.

Danny Richie · « **Reply #39 on:** 24 May 2006, 01:53 am »

Some of that side depth is needed so that the big woofer can have a little breathing room.

If you made it more narrow than you'd need to add a base to it to keep is stable and then you're right back to the same width at the bottom.

Plus, the multiple layers keep the sides stiff and solid. It needs that.

Paint the side panels flat Black and you'll never even notice them.