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post #1 of 137 Old 10-30-2017, 09:39 AM - Thread Starter
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New DIY Sound Group Jeff Bagby kit

Anyone checked out the DIY Sound Group page today? Erich has a bunch of info on some new kits that are in the works. The one that really caught my attention was the one by Jeff Bagby. I really want to build my first kit and this one has my attention because it uses a ribbon tweeter and a 7-inch woofer. I think these might be perfect for my living room. Heres the description "Jeff Bagby: MT using a nice 7" woofer with a Fountek ribbon tweeter. This one might take a little over a month." Anyone know that the MT stands for?

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post #2 of 137 Old 10-30-2017, 09:43 AM
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Originally Posted by Buddylee123 View Post
Anyone checked out the DIY Sound Group page today? Erich has a bunch of info on some new kits that are in the works. The one that really caught my attention was the one by Jeff Bagby. I really want to build my first kit and this one has my attention because it uses a ribbon tweeter and a 7-inch woofer. I think these might be perfect for my living room. Heres the description "Jeff Bagby: MT using a nice 7" woofer with a Fountek ribbon tweeter. This one might take a little over a month." Anyone know that the MT stands for?
The MT means it is using just a Mid and a Tweeter.
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post #3 of 137 Old 10-30-2017, 09:49 AM
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Not sure which speaker you're referencing, but generally speaking MT stands for the driver arrangement with M = Mid and T= tweeter, so in this case MT = mid, tweeter or a 2-way design. Other iterations would be MTM, TMM, or TMW (W= woofer).

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post #4 of 137 Old 10-30-2017, 09:58 AM
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The TM from Jeff Bagby will be a bit longer than the other ones because we just decided which tweeters to use. I wasn't sure if I should put that one up or not because it's a little early still. The others are started or completed already.

The one I'm anxious to hear first will be the Anarchy model with the large Wavecor tweeters. Pete designs speakers for some good companies, one of which is Vapor Audio. He said he really liked the Anarchy woofers and the speakers can play very loud from around 35/40hz on up with gobs of bass output. The prototypes were are a speaker meet a couple weeks ago and people really liked them.

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post #5 of 137 Old 10-30-2017, 11:02 AM
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I'd like to hear more about the HTM-8 "Possible dual woofer horizontal center channel."
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post #6 of 137 Old 10-30-2017, 11:10 AM
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The HTM might be a dual 10" woofer center channel. It depends on how the 8" woofer works out.
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post #7 of 137 Old 10-30-2017, 11:53 AM
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Mid/Tweeter I think. Can't wait to see these high output dome tweeter kits myself.

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post #8 of 137 Old 10-30-2017, 01:28 PM
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What's the target sensitivity on the Bagby ribbon kit?
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post #9 of 137 Old 10-30-2017, 01:43 PM - Thread Starter
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Quote:
Originally Posted by Erich H View Post
The TM from Jeff Bagby will be a bit longer than the other ones because we just decided which tweeters to use. I wasn't sure if I should put that one up or not because it's a little early still. The others are started or completed already.

The one I'm anxious to hear first will be the Anarchy model with the large Wavecor tweeters. Pete designs speakers for some good companies, one of which is Vapor Audio. He said he really liked the Anarchy woofers and the speakers can play very loud from around 35/40hz on up with gobs of bass output. The prototypes were are a speaker meet a couple weeks ago and people really liked them.
Thanks for the info Erich. Do you think the Anarchy model from Pete will perform better in a large room than the one from Jeff? These will be going in my main living area which is approximately 18'W X 25'L x 14'H.
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post #10 of 137 Old 10-30-2017, 01:52 PM
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The Anarchy model should play lower bass, and handle more power with the ability to play louder. It's got a very large Wavecor tweeter in a waveguide too. So it's going to be nice sounding brute of a speaker.

It could be built into a tower and play quite low. For occasional movies you could probably get away with no subwoofer as long as you weren't expecting room shaking bass under 30hz or so.

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post #11 of 137 Old 10-30-2017, 01:53 PM - Thread Starter
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The Anarchy model should play lower bass, and handle more power with the ability to play louder. It's got a very large Wavecor tweeter in a waveguide too. So it's going to be nice sounding brute of a speaker.

It could be built into a tower and play quite low. For occasional movies you could probably get away with no subwoofer as long as you weren't expecting room shaking bass under 30hz or so.
This will be a 2 channel setup and used mostly for music and light TV watching.
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post #12 of 137 Old 10-30-2017, 02:26 PM
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Any larger tower offering to come? Seems like there are no tower kits featuring dome/ribbon tweeters.

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post #13 of 137 Old 10-30-2017, 02:39 PM
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What would be considered a large tower?

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post #14 of 137 Old 10-30-2017, 02:58 PM
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Quote:
Originally Posted by bgtighe23 View Post
Any larger tower offering to come? Seems like there are no tower kits featuring dome/ribbon tweeters.
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What would be considered a large tower?
If you offered a 1099 kit with bamboo cabinets and either the RAAL 140-15 or 70-10 (70-10 might not have enough output to match the rest of the speaker), I would purchase three of them for a front soundstage speaker setup. Would be fairly easy to do. Take your current center speaker design of the 1099 and make a different cut for the tweeter to house the ribbon. That would be a left or right floostander. Then take the design for a L/R floorstander and cut the tweeter area for a ribbon and you have a center channel speaker.

I've wanted this since I first saw the 1099. I have never liked compression drivers, my ears seem to be sensitive to them.

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post #15 of 137 Old 10-30-2017, 03:01 PM
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What would be considered a large tower?
Something as large as the Anthologies or Statements, IMO. I wouldn't mind seeing some full range 3-way designs for 2 channel listening. Then agian I can STFU since I now live in New Zealand and shipping to hear is not practical.

Cheers on the new designs, they sound really interesting.
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post #16 of 137 Old 10-30-2017, 03:12 PM - Thread Starter
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What would be considered a large tower?
I would love to see a tower kit like this offered but a little smaller, maybe 2 Anarchy woofers and a ribbon tweeter. I think the Anarchy woofers look good enough to not cover them and I am really liking the sound of ribbon tweeters.

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post #17 of 137 Old 10-30-2017, 03:20 PM - Thread Starter
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Something as large as the Anthologies or Statements, IMO. I wouldn't mind seeing some full range 3-way designs for 2 channel listening. Then agian I can STFU since I now live in New Zealand and shipping to hear is not practical.

Cheers on the new designs, they sound really interesting.
Just looked these up, those would be nice!
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post #18 of 137 Old 10-30-2017, 03:54 PM
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Originally Posted by pgwalsh View Post
Something as large as the Anthologies or Statements, IMO. I wouldn't mind seeing some full range 3-way designs for 2 channel listening. Then agian I can STFU since I now live in New Zealand and shipping to hear is not practical.

Cheers on the new designs, they sound really interesting.
I've been dying to build a 3 way using dual Motus 8" woofers ever since I tested them on my YouTube channel. Plus a Fountek NeoX 3.0 ribbon and some mid I haven't settled on yet. Sound a lot like what you're describing and would be extremely hifi. I just gotta convince Erich

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post #19 of 137 Old 10-30-2017, 04:04 PM
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No convincing needed, just let me know the midrange and we'll get it rolling. I think you should also consider the round Neo cd3.0 as well, but not sure if you've compared the two. The smaller one might make a shorter center channel if anyone needed that.

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post #21 of 137 Old 10-30-2017, 04:31 PM
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Originally Posted by tuxedocivic View Post
I've been dying to build a 3 way using dual Motus 8" woofers ever since I tested them on my YouTube channel. Plus a Fountek NeoX 3.0 ribbon and some mid I haven't settled on yet. Sound a lot like what you're describing and would be extremely hifi. I just gotta convince Erich

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Hey there, nice woofers.

Tux,

I'm not sure if you've seen or viewed the Wavecore Ardent thread on HTGuide, but those speakers are a bit lust worthy. I wish they extended lower in the bass region for the price and I know there was talk doing a passive sub version possibly in the future. Biggest problem for me is the price and complexity of the crossover. I have read a lot of positive things about Beryllium dome tweeters in the few months.

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post #22 of 137 Old 10-30-2017, 04:37 PM
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One thing I'm never sure of and all the designers hate me for is this.....I always try to shoot for 8 ohm speaker kits. The dual Anarchy is a 4 ohm speaker. I think there will be a 4 ohm and 8 ohm version of the single woofer model, possibly.


What do you guys think about 4 ohm versus 8 ohm on the dome/ribbon tweeter speakers. I think smaller models should be 8 so they can be powered off any receiver/AVR, maybe the bigger ones can be 4. But they make a lot of nice little amps that are 4 ohm stable now. So it's been a tough call for me.


Any thoughts on that?

Should the new smaller 5.5" dual Anarchy woofer model be an 8 ohm speaker?
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post #23 of 137 Old 10-30-2017, 04:41 PM
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Which wavcor tweeter?
It's the one in their waveguide: TW030WA11

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post #24 of 137 Old 10-30-2017, 05:04 PM
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Hey there, nice woofers.

Tux,

I'm not sure if you've seen or viewed the Wavecore Ardent thread on HTGuide, but those speakers are a bit lust worthy. I wish they extended lower in the bass region for the price and I know there was talk doing a passive sub version possibly in the future. Biggest problem for me is the price and complexity of the crossover. I have read a lot of positive things about Beryllium dome tweeters in the few months.

Drivers:
ScanSpeak D3004/6640-00 Beryllium dome tweeter
Accuton C90-9-079, matched pair
Wavecor SW223BD01 - 4 ohm


No I hadn't seen that one. HTguide isn't a forum I visit often. Nothing wrong with it I just don't. But that is really a nice looking speaker. Something like that using a ribbon was exactly my thought. Not sure I'd spend that much money though! Though Motus woofers aren't cheap but the amount of bass they make is serious. I laugh everytime I hear them. So low and solid.

Gonna check out that build now

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Originally Posted by Erich H View Post
One thing I'm never sure of and all the designers hate me for is this.....I always try to shoot for 8 ohm speaker kits. The dual Anarchy is a 4 ohm speaker. I think there will be a 4 ohm and 8 ohm version of the single woofer model, possibly.


What do you guys think about 4 ohm versus 8 ohm on the dome/ribbon tweeter speakers. I think smaller models should be 8 so they can be powered off any receiver/AVR, maybe the bigger ones can be 4. But they make a lot of nice little amps that are 4 ohm stable now. So it's been a tough call for me.


Any thoughts on that?

Should the new smaller 5.5" dual Anarchy woofer model be an 8 ohm speaker?
I'm personally fine with 4 ohm because my current receiver can power them and we are talking about a 2 channel setup. I can certainly see where the concern is though. It will be interesting to see what other people think about this.
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post #26 of 137 Old 10-30-2017, 05:20 PM
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So many commercial speakers dip down to 4ohms it would take a day to list them. Even cheap receivers can handle it ok they just start to become less efficient and heat up. Shutting down or clipping requires serious volume or less than 4ohms. I tested a "8ohm compatible" Klipsch speaker that dipped down to 3ohms.

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Quote:
Originally Posted by tuxedocivic View Post
No I hadn't seen that one. HTguide isn't a forum I visit often. Nothing wrong with it I just don't. But that is really a nice looking speaker. Something like that using a ribbon was exactly my thought. Not sure I'd spend that much money though! Though Motus woofers aren't cheap but the amount of bass they make is serious. I laugh everytime I hear them. So low and solid.

Gonna check out that build now

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If you manage to read through the gist of the design I'd be interested in your thoughts.

When it comes to 2 channel, I don't mind spending quite a bit more for a pair of floor standers than I would for strictly home theater use. I do a lot more critical listening in a stereo setup.
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post #28 of 137 Old 10-30-2017, 08:47 PM
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Originally Posted by Erich H View Post
No convincing needed, just let me know the midrange and we'll get it rolling. I think you should also consider the round Neo cd3.0 as well, but not sure if you've compared the two. The smaller one might make a shorter center channel if anyone needed that.
Quote:
Originally Posted by tuxedocivic View Post
I've been dying to build a 3 way using dual Motus 8" woofers ever since I tested them on my YouTube channel. Plus a Fountek NeoX 3.0 ribbon and some mid I haven't settled on yet. Sound a lot like what you're describing and would be extremely hifi. I just gotta convince Erich

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What would be considered a large tower?
What I would like to see (personally) is a tower for the hi-fi group that uses a solid ribbon, but also a high power handling dome that could be capable for HT duty.
MTMWW dome tower would be sweet. or even WMTMW.
Really the 1099/1299 size is fine. but what I think would be cool is if you offered "tower stand" kits.
For example: take the 1099. but offer a "tower stand" flatpack (separate purchase) that turns the 1099 into a tower.
This would keep shipping large "tower" costs down.

I'm not super picky, but there just aren't any tower dome kits.

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post #29 of 137 Old 10-30-2017, 09:17 PM
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Quote:
Originally Posted by Erich H View Post
One thing I'm never sure of and all the designers hate me for is this.....I always try to shoot for 8 ohm speaker kits. The dual Anarchy is a 4 ohm speaker. I think there will be a 4 ohm and 8 ohm version of the single woofer model, possibly.


What do you guys think about 4 ohm versus 8 ohm on the dome/ribbon tweeter speakers. I think smaller models should be 8 so they can be powered off any receiver/AVR, maybe the bigger ones can be 4. But they make a lot of nice little amps that are 4 ohm stable now. So it's been a tough call for me.


Any thoughts on that?

Should the new smaller 5.5" dual Anarchy woofer model be an 8 ohm speaker?
virtual every modern amplifier is stable at 4 ohms. Unless someone is designing speakers for an esoteric tube amp with an 8 ohm tap, EVERY SPEAKER SHOULD BE 4 OHMS, PERIOD, otherwise you are leaving money on the table, so to speak.

Personally I long for a 4 ohm dual MTM 8 in speaker like the cinema 8s, with a matching dual 8" center chanel just like the fusion 8s but 4 ohm.

With everyone on the multi full marty bandwagon the LCR really need to be able to make the transition down to the 18s in groups of 4. I think the dual 8s can do that, but with an 8ohm load, mo hard.
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post #30 of 137 Old 10-30-2017, 10:28 PM
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Originally Posted by kennyandersen View Post
virtual every modern amplifier is stable at 4 ohms. Unless someone is designing speakers for an esoteric tube amp with an 8 ohm tap, EVERY SPEAKER SHOULD BE 4 OHMS, PERIOD, otherwise you are leaving money on the table, so to speak.

Personally I long for a 4 ohm dual MTM 8 in speaker like the cinema 8s, with a matching dual 8" center chanel just like the fusion 8s but 4 ohm.

With everyone on the multi full marty bandwagon the LCR really need to be able to make the transition down to the 18s in groups of 4. I think the dual 8s can do that, but with an 8ohm load, mo hard.
I'm not sure about all of that. Very few people are buying Fusion-8 or Cinema-8 kits to be powered with external 4 ohm stable amps for home theater. Usually they'd use an AVR, so there was no real reason to make them 4 ohm.

If they only have enough room for the 8's, they probably don't have a huge room with four large ported 18's and they're likely sitting fairly close to the speakers. So if they did want to use an external amp, at a 12' seating distance any decent model would play them to uncomfortable levels whether the Cinema-8's were 4 or 8 ohm.
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