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Discussion Starter · #41 ·
I would love to hear a good Raal design since I have heard so many good things about them. My speakers have the NeoPro5's and most feel the Raal smokes it, just want to see for myself.


James
 

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Quote:
Originally Posted by exojam /forum/post/20852781


I would love to hear a good Raal design since I have heard so many good things about them. My speakers have the NeoPro5's and most feel the Raal smokes it, just want to see for myself.


James

James, the RAAL is considered one of the best. I am soon to find that out and I will let you know. I have heard the fountek and it is no looser-that is for sure.


The Hiquphon OW2 are in my bookshelves and they are very good as well.


The tweets that you have look very nice and the price is not cheap either.


Mr Nuance can also comment on the RAAL/fountek too.


And I would think Dennis would give you a 2 thumbs up with the RAAL!


R
 

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Quote:
Originally Posted by woodsart /forum/post/20852714


The center channel, I think will be 2 5" woofers, I think the (2) Seas Excel ER15RLY or something similar with a Fountek ribbon tweet. Dennis will correct me if I am wrong. I have the CAOW1s (see pic), and am very pleased with the sound and design.


Robert

I have a center design that uses two 5" SB Acoustics woofers with the Fountek tweet and a single front mounted slot port. It's about the same size as the Salk Song Center. The cabinets are just going into production, so it will be awhile. I don't have a version with the RAAL yet because it needs to be crossed higher that I like to run the woofers in a 2-way. I would have to switch to a WMTW configuration with the RAAL, and it would end up being very expensive. I'll see how people like the mtm center.
 

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Quote:
Originally Posted by woodsart
Brandon, Brandon.....how are you, long time no hear!!!!


You know me satin black, satin black, satin black!!!!



Has to match all of our furniture, blends in better that way as you may well know these thing are huge, did I say huge 21" deep, 11.5" wide and 41.5" high and I don't know how much they weigh. Glad they are in two pieces!!


I am excited that I finally made a decision. I flip flopped forever (as you may well know), but now I did it....unfortunately I have to wait some more, oh well good things comes to those who wait.


Dennis may have to hire someone to help him as I think there is no way he can keep up when his new Forum is up and running. His cabinet maker is already running behind and with the outsourced cabinets on their way, man they will all be sold out before they get here. Wish I lived closer I would enjoy speaker building.


I have become a tube head as well. He He!!! So I think these Phillys will be fantastic with one of those.


So how is the family and the baby?


Robert
Right on, right on.


The family and I are well, thank you. The baby is now one years old - WOW! That flew by too fast!!! How have you been buddy?
 

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Discussion Starter · #45 ·
Dennis,


Just a quick question for you, on all three sets of the Philharmonics; it is mentioned that they use an open back upper cabinet. With this, do you recommend these be placed a certain distance away from the back wall?


I was just wondering in case someone else had this question and maybe a bit hesitant to ask. Thanks.


James
 

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Quote:
Originally Posted by exojam
Dennis,


Just a quick question for you, on all three sets of the Philharmonics; it is mentioned that they use an open back upper cabinet. With this, do you recommend these be placed a certain distance away from the back wall?


I was just wondering in case someone else had this question and maybe a bit hesitant to ask. Thanks.


James
Good question.
 

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Quote:
Originally Posted by RicardoJoa
Good question.
Well, let's see if I have a good answer. The upper module is about one foot shorter than the bass module (the back of the upper cabinet is actually sloped, so the distance varies from 10" to 13"). That means you could slam the bass cabinet smack against a wall and still leave some breathing room for the rear wave. That's not optimal, but it wouldn't be a show stopper either. You would still get some added depth and ambiance from the backwave. I have my bass cabinets about 1.5 ft from the rear wall, and that's plenty. I would also note that the termination of the transmission line is on top of the bass cabinet, so placing the rear of the cabinet against or near a wall won't choke it off or cause boominess.
 

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Quote:
Originally Posted by Dennis Murphy
Well, let's see if I have a good answer. The upper module is about one foot shorter than the bass module (the back of the upper cabinet is actually sloped, so the distance varies from 10" to 13"). That means you could slam the bass cabinet smack against a wall and still leave some breathing room for the rear wave. That's not optimal, but it wouldn't be a show stopper either. You would still get some added depth and ambiance from the backwave. I have my bass cabinets about 1.5 ft from the rear wall, and that's plenty. I would also note that the termination of the transmission line is on top of the bass cabinet, so placing the rear of the cabinet against or near a wall won't choke it off or cause boominess.
Dennis, thanks.

When you say the termination is on the top of the base cabinet, do you mean the top panel of the base cabinet?

Also, I noticed between 200-300hz on axis FR, there is a valey in this area or a drop in db. What does that translate in term of sound? My Songtower seems to be in the opposite, where in this area there is a lift.


Thanks
 

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Quote:
Originally Posted by RicardoJoa /forum/post/20857687


Dennis, thanks.

When you say the termination is on the top of the base cabinet, do you mean the top panel of the base cabinet?

Also, I noticed between 200-300hz on axis FR, there is a valey in this area or a drop in db. What does that translate in term of sound? My Songtower seems to be in the opposite, where in this area there is a lift.


Thanks

The slot termination is on the top panel of the bass unit at the back--behind the upper module. You can see it looking down at the speaker. It's not on the back panel. As for the FR, I take it you'e referring to the Phil 1, because I don't see anything like tha on the Phil 3. There are a couple of things to keep in mind regarding these measurements. First, they are made on the tweeter axis at just a little over 1 meter, which is maybe 1/3 of the normal listening distance. Second, my Praxis program shifts over from a purely anechoic measurement (with no contribution from room reflections) to a room measurement at around 250 Hz on down. So at that point you start to see what the environment is doing to the response. The area from 100 Hz to around 250 Hz will be affected by floor bounce cancellation from the woofer. The woofer sound waves hit the floor and bounce back out of phase. The exact area of cancellation will depend on the distance of the woofer to the floor, and the measurement distance. The Phil 2 woofer is about 2" closer to the floor than the Phil 3's, and this apparently shifts the area of cancellation up a little. But keep in mind that the distance of the woofer to the mic is much greater relative to the tweeter at one meter than it will be at a normal listening distance. It's very controversial whether the ear actually hears any of the floor cancellation effect at a normal listening distance. In any event, there's nothing to be done about it unless you move the woover to floor level, which has problems of its own. The point source of the SongTower's woofers is at the tweeter level--that's where the output of the two woofers combines, and it's much higher than the woofer location of the Philharmonics. That shifts the cancellation point down. I've tried to attach a plot of the ST showing the response all the the way down to 20 Hz.

You can see the deep cancellation notch, which will also be present on any other MTM tower.
 

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Anyone hear these bad boys?
 

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Quote:
Originally Posted by Monkish54 /forum/post/20901688


Anyone hear these bad boys?

If so, it would have to have been at the Capital Audio Show or in my living room. The first Phil3 will be going out to a customer next weekend, with several more close behind. So hopefully we'll get some feedback before the leaves fall.
 

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Quote:
Originally Posted by Dennis Murphy /forum/post/0



If so, it would have to have been at the Capital Audio Show or in my living room. The first Phil3 will be going out to a customer next weekend, with several more close behind. So hopefully we'll get some feedback before the leaves fall.

How much is shipping to 91311?
 

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Quote:
Originally Posted by Monkish54
How much is shipping to 91311?
A lot less than to Brazil. That's where the 6th pair is headed. And maybe a pair to Australia. So I think we can handle Chatsworth without too much financial damage. Ooops. I should never say damage.
 

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Quote:
Originally Posted by Dennis Murphy
A lot less than to Brazil. That's where the 6th pair is headed. And maybe a pair to Australia. So I think we can handle Chatsworth without too much financial damage. Ooops. I should never say damage.
I suppose we could
 

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I just saw this last night and wanted to say congratulations Dennis!

This is one hell-of-a "retirement" project


I think you just launched the best deal in Audio!

The 3's seem like they would have completed my "Speakerquest" and stayed within my original budget! (edit: okay, well at least under my secondary budget)

Can't wait to hear a pair, I really like the idea of an open back planar mid, seems like the perfect application for that technology.

I wish you all the luck in the world with this endeavor.

Cheers
 

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Quote:
Originally Posted by funkmonkey /forum/post/20908564


I just saw this last night and wanted to say congratulations Dennis!

This is one hell-of-a "retirement" project


I think you just launched the best deal in Audio!

The 3's seem like they would have completed my "Speakerquest" and stayed within my original budget! (edit: okay, well at least under my secondary budget)

Can't wait to hear a pair, I really like the idea of an open back planar mid, seems like the perfect application for that technology.

I wish you all the luck in the world with this endeavor.

Cheers

Thanks Funmeister! I think the closest order I have to you is in Vancouver, so it may be awhile before you hear these puppies.
 
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