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Post by swurveman on Jun 2, 2015 6:13:53 GMT -6
I want to build a closed off guitar amp space, because I prefer listening to electric guitars through my speakers during tracking instead of headphones. So, I'm looking at foam to cover the walls and ceiling of this space.
If anybody can recommend the best type of foam (and supplier?) to do this cost effectively, I'd appreciate it. My wife nixed the packing blankets idea, because she didn't want me punching any more holes in the walls. So, it's foam, foam foam...
Thanks to any who reply!
Frank
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Post by svart on Jun 2, 2015 6:31:21 GMT -6
Foam doesn't have an open enough structure to absorb much below very high frequencies, which is why it's almost never used in studios, and rockwool/fiberglass is.
That said, if you can get foam with really deep crevices, then it will work better for low frequencies. Typical foam has 2" valleys, but see if you can find something with 4-8" valleys which works to lower frequencies.
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Post by b1 on Jun 2, 2015 6:31:31 GMT -6
Hi Frank,
I purchased some 2" foam (Green/Ugly) to build an Iso-box. I figured on getting some MDF or plywood for an outer enclosure and experimenting with layers, plus a rubber separation on the floor.
Since I use a mostly clean tone from a 135 watt Fender amp, I prefer the lower volume so figure a chamber/box would be better in my situation, for the speaker only, to avoid heat in the enclosure.
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Post by jcoutu1 on Jun 2, 2015 6:34:08 GMT -6
As an aside, years ago I tossed up a bunch of Auralex foam in an apartment that I was living in to kill some flutter in a little bedroom control room that I was in. I used a can of this stuff to mount it. www.musiciansfriend.com/accessories/auralex-foamtak-spray-adhesive-1-canIn the description, it says that if you spray lightly, it can be removed. I disagree. I tried to go light with the glue, but man, this stuff TORE UP the walls when taking it down. Foam survived, walls were poor. I have to imagine that if your wife doesn't want holes in the walls, she'd like this spray on adhesive even less. |
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Post by warrenfirehouse on Jun 2, 2015 6:46:11 GMT -6
As an aside, years ago I tossed up a bunch of Auralex foam in an apartment that I was living in to kill some flutter in a little bedroom control room that I was in. I used a can of this stuff to mount it. www.musiciansfriend.com/accessories/auralex-foamtak-spray-adhesive-1-canIn the description, it says that if you spray lightly, it can be removed. I disagree. I tried to go light with the glue, but man, this stuff TORE UP the walls when taking it down. Foam survived, walls were poor. I have to imagine that if your wife doesn't want holes in the walls, she'd like this spray on adhesive even less. Beat me to it...if you plan on glueing to the walls, plan on sanding and painting when it comes down. Building stand alone 703 gobos is probably your best bet if you don't want destroy walls, put wheels on them and you can roll them around where ever you need them. |
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Post by tonycamphd on Jun 2, 2015 7:25:10 GMT -6
I have 4" pyramids on top of 3" of roxul rockboard 60 in here, i'm using it to suck up the hi end in an anechoic chamber "Le" kind of way, it works pretty well for that, but cutting right to the chase, foam on its own isn't going to cut it IME. Make a cake dish lid/box thats light, it's walls filled with insulation, that you can place over the amp when you have it dialed in, watch out for overheating. Or, make 5 panels that store much easier, then when needed, surround the amp with 4 walls and lay the 5th as a lid, hope this helps a little.
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Post by swurveman on Jun 2, 2015 7:53:51 GMT -6
Thanks for your responses guys. I have a 4 x 12 cabinet. So, building a small box isn't going to cut it for that. Perhaps I should scrap the idea of a larger closed off space that could fit my 4x12 and get a few 1 x 12 cabinets and put them in an iso box like Pete Thorn did in this demo. He claims in a later video-where he has a studio with an amp room- that his Youtube demo's up to then were done with his iso cab. I'll never be the player he is, but his tone on his demo's sounds very good despite coming from his iso box. I have a Bricasti M7. So, I'll get my room sound from that. Not perfect, but I want to be able to sit at my desk and get the sound I want there, and it's not like my 4x12 is at Skywalker Sound anyway. |
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Post by jcoutu1 on Jun 2, 2015 7:55:52 GMT -6
Thanks for your responses guys. I have a 4 x 12 cabinet. So, building a small box isn't going to cut it for that. Perhaps I should scrap the idea of a larger closed off space that could fit my 4x12 and get a few 1 x 12 cabinets and put them in an iso box like Pete Thorn did in this demo. He claims in a later video-where he has a studio with an amp room- that his Youtube demo's up to then were done with his iso cab. I'll never be the player he is, but his tone on his demo's sounds very good despite coming from his iso box. I have a Bricasti M7. So, I'll get my room sound from that. Not perfect, but I want to be able to sit at my desk and get the sound I want there, and it's not like my 4x12 is at Skywalker Sound anyway. Not sure how this is, but I've seen it on sale, for maybe $250 before? Seems to be the cheapest iso cab on the market. I'm sure you could drop in a quality speaker and be good to go. www.musiciansfriend.com/amplifiers-effects/jet-city-amplification-jetstream-12-iso-1x12-isolation-guitar-speaker-cabinet/430430 |
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Post by b1 on Jun 2, 2015 8:12:46 GMT -6
I've recently changed my intended design from 4 ft. square to 4'x4'x8' and install the 15" speaker to be mic-ed and putting a simulated room mic at ceiling level. Still researching though...
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Post by swurveman on Jun 2, 2015 8:21:29 GMT -6
Thanks for your responses guys. I have a 4 x 12 cabinet. So, building a small box isn't going to cut it for that. Perhaps I should scrap the idea of a larger closed off space that could fit my 4x12 and get a few 1 x 12 cabinets and put them in an iso box like Pete Thorn did in this demo. He claims in a later video-where he has a studio with an amp room- that his Youtube demo's up to then were done with his iso cab. I'll never be the player he is, but his tone on his demo's sounds very good despite coming from his iso box. I have a Bricasti M7. So, I'll get my room sound from that. Not perfect, but I want to be able to sit at my desk and get the sound I want there, and it's not like my 4x12 is at Skywalker Sound anyway. Not sure how this is, but I've seen it on sale, for maybe $250 before? Seems to be the cheapest iso cab on the market. I'm sure you could drop in a quality speaker and be good to go. www.musiciansfriend.com/amplifiers-effects/jet-city-amplification-jetstream-12-iso-1x12-isolation-guitar-speaker-cabinet/430430Thanks for the link Jesse. It looks good, except that I'm gonna need something with two mics. So, I'll probably build one. This leads me to my next question: I've read about high frequency loss for longer cable runs. Do you, or anybody else, know what length of cable to the cab enclosure- and back from the microphones inside- I can get away with before I experience hf loss? Thanks as always for your help! |
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Post by b1 on Jun 2, 2015 8:38:22 GMT -6
I would imagine from one side of the room to the other is fine. If I remember correctly, in a live situation, 100 ft. from instrument to Amp is max.
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Post by Bob Olhsson on Jun 2, 2015 8:41:57 GMT -6
My experience has been that less than 4" creates more problems than it solves.
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Post by mrholmes on Jun 2, 2015 17:39:34 GMT -6
If you want total silence you will end up building a room in room construction.....
For home use a nice compromise is a power soak with DI box into good cab impulses.... works well if I track late at night, and very often I do not reamp it the next day.....
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Post by jayson on Jun 3, 2015 6:28:50 GMT -6
www.thefoamfactory.com/acousticfoam/acousticfoam.htmlThese guys have pretty decent products that are very reasonably priced. It's in the same league as Auralex, but not too gimmickly priced. The corner traps are excellent at reducing flutter. I've combined the 4" wedge foam and corner traps with some 4" 703 panels and converted a closet into a pretty effective iso-booth for guitar cabs.
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Post by donr on Jun 3, 2015 15:33:59 GMT -6
I've got a Rivera Silent Sister with a 12" Celestial V30 I'd part with. It would do what you're trying to achieve.
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ericn
Temp
Balance Engineer
Posts: 16,107 
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Post by ericn on Jun 3, 2015 17:27:59 GMT -6
Make sure your foam is fire rated or you could be nullifying
your insurance policy if there is ever a fire !
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Post by Guitar on Jun 6, 2015 11:36:52 GMT -6
If you run a really long cable you're going to want to run a clean buffer somewhere upstream. Any Boss pedal already has a buffer going all the time, etc, or the Klon. I use a Cornish buffer (DIY in a tiny enclosure) at the front end of my pedalboard (17 pedals) to keep things from going to mud. With that much cable, or lots of true bypass effects, it becomes a necessity.
I would try to find any possible way you can to use fiberglass panels instead of foam. My panels are mounted to the wall with thumb tacks, which don't leave too bad of a hole. But a hole nonetheless.
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outuvphaze
Full Member
Riders on the storm... Riders on the storm...
Posts: 33
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Post by outuvphaze on Jun 14, 2015 23:57:22 GMT -6
For a moment... When I saw the title I thought that I was in some porn forum. "Anyone experienced with foam?" lol Do you see what coming onto this site late at night does to a person?  Sleep well fellow gear nuts. |
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ericn
Temp
Balance Engineer
Posts: 16,107
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Post by ericn on Jun 15, 2015 9:30:08 GMT -6
For a moment... When I saw the title I thought that I was in some porn forum. "Anyone experienced with foam?" lol Do you see what coming onto this site late at night does to a person? Sleep well fellow gear nuts. Gee I can guess what other sites you were visiting! |
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Sleep well fellow gear nuts.