Re: Lets plan a theater space
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Joined: Jul 2009
Posts: 2,281
connoisseur
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connoisseur
Joined: Jul 2009
Posts: 2,281 |
Why did you feel you needed to open up the backs of the midrange box's? That MDF is brutal on hole saws HA HA . i went through a couple cutting port holes and using the router requires a patient hand for sure. It not only ruins the bits the hole gets mishappen and oversize if you move to fast. Its a steep learning curve and it gets expensive fast, helps you realize why its so expensive to buy a set of speakers already made.
DOG is GOD spelled backwards. What others think of me is none of my business. M80 V3 MY GLOSS Cherry
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Re: Lets plan a theater space
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Joined: Mar 2014
Posts: 1,593 Likes: 1
connoisseur
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OP
connoisseur
Joined: Mar 2014
Posts: 1,593 Likes: 1 |
The midrange tunnels are designed open. They are lined with 1" foam in the end. Poor mans LFRs.
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Re: Lets plan a theater space
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Joined: Jul 2009
Posts: 2,281
connoisseur
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connoisseur
Joined: Jul 2009
Posts: 2,281 |
Cool, i only briefly looked at the plans. M80's just use a cup behind the speaker to protect it from the waves of the larger driver so it doesnt act like a passive radiator for the lower bass.
The old house i used to live in had a small shop on it (20x20 and someone had put in a barrel stove and man i could get that shop so hot you couldnt stand to be in it even at -30 with no insulation. My new shop is bigger and insulated and nicer but putting in a wood stove up here has so many regulations and insurance would be killer i cant do it. I use a kerosene heater when is around -5 but it just doenst cut it. Once my kids hand is better he is going to weld up a waste oil burner ,see how my neighbors like that. Its a bitch having a shop you cant use in the winter and boredom sets in.
DOG is GOD spelled backwards. What others think of me is none of my business. M80 V3 MY GLOSS Cherry
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Re: Lets plan a theater space
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Joined: Mar 2014
Posts: 1,593 Likes: 1
connoisseur
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OP
connoisseur
Joined: Mar 2014
Posts: 1,593 Likes: 1 |
Yeah heat is a must. Boring cooped up these days and as time goes on I just cant stay still anymore. I'll have to keep my eyes open for a 3kw forceflow heater. The tablesaw is rigged for 240v so it wouldnt be hard to share the receptacle for both uses. (Not at the same time of course. ) The worst part is only having one circuit in this garage. A heater and lights and I'm at full load. Two heaters, forget it. I've been running a heavy cord from the outside plug into the garage for tool use and extra heat. Lol. I grew up in my dads back shop so theres always a way. Just have to cook up the workarounds.
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Re: Lets plan a theater space
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Joined: Jul 2009
Posts: 2,281
connoisseur
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connoisseur
Joined: Jul 2009
Posts: 2,281 |
The guy who built this shop ran 100amp service so i have a compressor 220 and a stick welder but i just unplug compressor and run welder. I can just get another breaker one day but i dont weld much any way.He did a great job on the shop but cheaped out on the height, would have liked a higher ceiling,maybe in my next life.
DOG is GOD spelled backwards. What others think of me is none of my business. M80 V3 MY GLOSS Cherry
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Re: Lets plan a theater space
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Joined: May 2014
Posts: 1,172 Likes: 6
connoisseur
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connoisseur
Joined: May 2014
Posts: 1,172 Likes: 6 |
Sorry, but don't have any photo's of my shop and the NG radiant heater installed. But, it does a wonderful job of keeping my toes warm when it gets cold outside.
Anthem: AVM60, Fosi DAC-Q5 Axiom: ADA1500, LFR1100 Actiive, QS8, EP500, M3, M3comp, M5
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Re: Lets plan a theater space
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
I can't wait to see the family of curves for those. You have built an anechoic chamber, right?
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: Lets plan a theater space
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Joined: Jul 2009
Posts: 2,281
connoisseur
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connoisseur
Joined: Jul 2009
Posts: 2,281 |
Sorry, but don't have any photo's of my shop and the NG radiant heater installed. But, it does a wonderful job of keeping my toes warm when it gets cold outside. I have looked at one on amazon that runs on propane, i have reservations though since we had radiant heat in our shop and it left the cement floor cold as hell and damn near set a guy on fire when under it. How big is your shop
DOG is GOD spelled backwards. What others think of me is none of my business. M80 V3 MY GLOSS Cherry
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Re: Lets plan a theater space
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Joined: Mar 2014
Posts: 1,593 Likes: 1
connoisseur
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OP
connoisseur
Joined: Mar 2014
Posts: 1,593 Likes: 1 |
I can't wait to see the family of curves for those. You have built an anechoic chamber, right? Actually, yes! What a lot of people do is lay the speaker flat on the ground and take measurements from above. Then you subtract the boundary loading effect from the bass. We wont be doing that this time.... Room measurements are the best I got. Since I will have 3 of these, identical in every way, and a room that is arguably approaching "ideal", we will have a chance to collect some real data. I can actually measure the before and after speaker break in. Heck I can even measure a new crossover vs a broken in crossover on a new vs broken in speaker. Lots of iterations to chase if we wanted to get silly. And we might? I'm willing to turn my theater into a lab\museum for a couple weeks. Why not. If someone is willing to design the test I can collect the data and share it.
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Re: Lets plan a theater space
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
There are too many independent variables you'd have to control to gauge speaker break-in. Variables like temperature and humidity would be impossible to keep constant without a very expensive environmental chamber.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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