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Old 02-27-2018, 09:38 PM   #61
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Re: Hobby Projects


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Ditch the frame and make it all out of 3/4" MDF. Use some stif cardboard for templates of each side to scribe to floor and get your heights and shapes right. Then cut the two sides and put in place and check fit. Pick a width and start cutting pieces for the bottom, top, front, and back to make the enclosure. Screw from the sides into those pieces using glue. If there is any angles or weird fitting pieces you can't cut the pieces to meet good you can use fiberglass to fill it in. I've built a handful of these back in the day. My last one had a built in computer with a power board that turned it on and off with the truck and the console had a built in computer screen along with two 15" MTX 9500s. The console went from the front dash all the way back and on top of the rear center seat. I always smooth mine out with body fiberglass and body filler and then sprayed them with matching paint. But that was about 15 years ago.
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That $5 would get you about 10 gallons of gas and keep ya going all night.

The new cassette was the one I just recorded from the new vinyl albums I picked up that week. Full album on each side.

The amp in my current suburban died about two months ago and I'm starting to go nuts.
Gotta get that fixed - love my music at all times. Car. Shop/Office. House. Backyard. Ect...
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I've seen a lot of crap setups that use Kickers. Terrible sound, but plenty of power.
I am not sure the kickers I bought are right for the box I ended up with. I could do a 4th order isobaric bandpass, or something like I diagrammed below. However I am thinking a single high power 10 or 8 (maybe 2 8's) would be more practical. I saw an amazing 8" sub at an audio shop today but the guy there was not very eager to make a sale or be very useful. I kinda feel he was the tint guy more than the audio guy. I couldn't even get a price out of him.

Could really use some advice on configuration and sub choice. I have signed up to a few audio forums and I am most definitely getting the new guy treatment and next to no help

I really don't want to do all this work and it sound like junk

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Old 02-27-2018, 09:50 PM   #62
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Re: Hobby Projects


Damn there are apps for sub design now? I basically learned math by pencil and papering tuned ports.
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Old 02-27-2018, 09:53 PM   #63
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Re: Hobby Projects


A little pottery.
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Old 02-28-2018, 08:21 AM   #64
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A little pottery.
Very nice. Good glazing technique. I had a few pottery classes in college. It's rewarding to bring a lump of clay into shape. My last class was in Monterey where they only had kickwheels, I hated those. Give me a motor any day.
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Old 02-28-2018, 09:03 AM   #65
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Very nice. Good glazing technique. I had a few pottery classes in college. It's rewarding to bring a lump of clay into shape. My last class was in Monterey where they only had kickwheels, I hated those. Give me a motor any day.
Thanks. I'm definitely an amateur but it is kind of therapeutic to work the wheel.
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Old 02-28-2018, 09:14 AM   #66
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Re: Hobby Projects


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I am not sure the kickers I bought are right for the box I ended up with. I could do a 4th order isobaric bandpass, or something like I diagrammed below. However I am thinking a single high power 10 or 8 (maybe 2 8's) would be more practical. I saw an amazing 8" sub at an audio shop today but the guy there was not very eager to make a sale or be very useful. I kinda feel he was the tint guy more than the audio guy. I couldn't even get a price out of him.

Could really use some advice on configuration and sub choice. I have signed up to a few audio forums and I am most definitely getting the new guy treatment and next to no help

I really don't want to do all this work and it sound like junk
Check woofers by pushing on one side of the cone, you want one that moves as a rigid piece, or as close to that as you can find. The ones that are floppy or mushy are going to introduce distortion. Go to a place where you can switch between speakers while you listen so you can compare the sound.

Calculate resonances for your vehicle. Vans tend to have them in the bass range, and you can get booming. Not so much of a problem with cars and truck cabs, but you should be aware.

Depending on your budget, preferences, and vehicle, a top quality 8 can be a better solution than a 12. It all depends on what you can afford for the woofer and amp. You have to pay attention to roll off on both the amp and the speaker. My rule of thumb is minimum cost for a good set up is $1 per watt of power for the amp and woofer. Could be more these days, I haven't been shopping in quite a while.
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Old 02-28-2018, 11:00 AM   #67
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A little pottery.



Very nice ! Give me something hand crafted over perfectly machine produced any day.

The slight irregularities add something that is timeless.

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Old 02-28-2018, 12:36 PM   #68
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Re: Hobby Projects


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Check woofers by pushing on one side of the cone, you want one that moves as a rigid piece, or as close to that as you can find. The ones that are floppy or mushy are going to introduce distortion. Go to a place where you can switch between speakers while you listen so you can compare the sound.

Calculate resonances for your vehicle. Vans tend to have them in the bass range, and you can get booming. Not so much of a problem with cars and truck cabs, but you should be aware.

Depending on your budget, preferences, and vehicle, a top quality 8 can be a better solution than a 12. It all depends on what you can afford for the woofer and amp. You have to pay attention to roll off on both the amp and the speaker. My rule of thumb is minimum cost for a good set up is $1 per watt of power for the amp and woofer. Could be more these days, I haven't been shopping in quite a while.
JL 8's is what it is!
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Old 02-28-2018, 02:35 PM   #69
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Re: Hobby Projects


OK, so it's going to be tough to get roll off below 30HZ, you may as well plan on that. Run the numbers on some ported designs with those speakers and see what you get.
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Old 02-28-2018, 07:03 PM   #70
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OK, so it's going to be tough to get roll off below 30HZ, you may as well plan on that. Run the numbers on some ported designs with those speakers and see what you get.
Well, unfortunately I couldn't place the 8's like I wanted so I returned them for a 500w rms 10

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Old 03-01-2018, 07:54 AM   #71
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Re: Hobby Projects


http://www.jlaudio.com/product/54216...ty_%2708-%2711

Problem solved.

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Old 03-01-2018, 08:11 AM   #72
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http://www.jlaudio.com/product/54216...ty_%2708-%2711

Problem solved.

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...for $720. I'd get creative to avoid that.
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Old 03-01-2018, 08:12 AM   #73
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...for $720. I'd get creative to avoid that.
Absolutely
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Old 03-01-2018, 08:18 AM   #74
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...for $720. I'd get creative to avoid that.
Sub and box.

Doesn't take much time to waste more than that costs.

Stealth boxes are awesome. They know what they are doing and you would think there was twice as many subs with twice the power. They have been making them for decades.

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Old 03-01-2018, 08:56 AM   #75
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Sub and box.

Doesn't take much time to waste more than that costs.

Stealth boxes are awesome. They know what they are doing and you would think there was twice as many subs with twice the power. They have been making them for decades.

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Cool story. Guys are pretty good at spending each others' money.
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Old 03-01-2018, 09:36 AM   #76
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Cool story. Guys are pretty good at spending each others' money.
What's he have, 30+ hours in this, including shopping time, buying and returning stuff?

It's not even done yet. That's a 3800.00 not even box, box in my world.

I guess if you have nothing else to do, but I don't even have the time for a hobby, unless you count kids as my hobby.

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Old 03-01-2018, 10:01 AM   #77
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What's he have, 30+ hours in this, including shopping time, buying and returning stuff?
I think you're missing the whole hobby angle here.
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Old 03-01-2018, 10:03 AM   #78
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Re: Hobby Projects


I hope the plywood is a template


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Old 03-01-2018, 10:08 AM   #79
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I think you're missing the whole hobby angle here.
No, not really. I think hobby is the car audio. Rather enjoy the audio part without spending all that time on something that won't sound or look as nice as something designed for the application.

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Old 03-01-2018, 10:15 AM   #80
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Re: Hobby Projects


I have a few hobbies.

I recently got interested in leather-craft.

There's no doubt in my mind that I can buy the 6-8 things I've made much cheaper than what it cost me to make them.

Oh well...I'll give up leather-craft I guess.

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