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bspstang

Audiophyte
I have ASW-10 10" Subwoofer from The Speaker Company and its just fine
 
lsiberian

lsiberian

Audioholic Overlord
I guess it just depends on where you buy it. My local home depot sells 3/4 MDF for abut $25 a sheet, birch is about $35 a sheet.
I was calculating for 3 sheets which is plenty to build dual subs.
 
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nick51

Audioholics Approved Vendor
tSc - No Fee shipping to Canada

I'm looking to pick up a sub for under 250 USD, about 300 CDN. So far I'm taking a serious look at the T-250 from TSC ( http://www.thespeakercompany.com/T250-Subwoofer-P103C17.aspx ).

Does anyone else have a better option for the same amount of money? Keep in mind TSC does ship to Canada for free, which is near impossible to find.

The room I am housing my home theatre is currently under construction. It's going to be a very very large room, however the listening area will be quite small, 10'X15'. The dimensions of the room are 35'X65'.
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Sorry to say but tSc does not ship to Canada yet. We are working on it but unfortunately it will not be free.

Nick
 
robmlisanti

robmlisanti

Audioholic
VX-10 Velodyne

I own the VX-10 Velodyne Subwoofer...and I love it purchased it for $159.00 at Vanns Online retailer.

Read the reviews below...click on the links

VX-10
Specifications VX-10
Amplifier: Discrete component A/B class amplifier
100 watts RMS
150 watts dynamic power
Driver: 10" (8.2" piston diameter) coated fiber cone with an inverted dust cap
Voice Coil: 2"
Magnet Structure: 2.5 lbs (1.1 kg)
Crossover: Variable from 50-200 Hz
Frequency Response: 36-120 Hz, +/- 3dB
Connections: "RCA" inputs for connection to the subwoofer/LFE output of a receiver or processor and spring-loaded, high-level inputs. High-level outputs are included
Grill: Surface mounted woofer grill with acoustically transparent cloth
Weight: 35 lbs
Dimensions: 15" H x 12" W x 17" D
Cabinet: An acoustically neutral LDF, ported enclosure
Warranty:(parts/labor) Three years (electronics)
Five years (drivers)
 
highfigh

highfigh

Seriously, I have no life.
I don't think the dayton amps are very good. Rarely do they meet their specs,

If you use MDF the materials of a DIy would be around 50, but if you use 3/4" birch you get better performance, better quality, and better looks.IMO That being said birch costs about 3 times the price of MDF. So MDF would be a way to cheapen the cost. I suggest not going with a plate amp, but it's up to you. Not sure what driver to get with 250 though. I think that's simply to low of a budget to pull off a DIY.
$50 for the MDF needed to make a box for a 12" sub? Mow many sheets are you using? It's about $20/Sheet.

Better performance and quality from birch? Why? MDF has more mass, it's easily as stiff and neither is great for miter joints. The glue is what holds the joints together, anyway. If Birch ply was so much better, manufacturers would have been using it all these years as long as the cost could have been contained. Raw edges on plywood don't really strike me as looking good, either.
 
lsiberian

lsiberian

Audioholic Overlord
$50 for the MDF needed to make a box for a 12" sub? Mow many sheets are you using? It's about $20/Sheet.

Better performance and quality from birch? Why? MDF has more mass, it's easily as stiff and neither is great for miter joints. The glue is what holds the joints together, anyway. If Birch ply was so much better, manufacturers would have been using it all these years as long as the cost could have been contained. Raw edges on plywood don't really strike me as looking good, either.
It's actually not as stiff

Eb = Modulus of elasticity in bending.
Eb describes how stiff a material is under bending. The higher the number, the stiffer the material is and the less it will flex. It allows us to easily compare the stiffness of different materials.

The following properties are all based on 18mm sheet materials:

Birch faced ply:-
Eb = 2700 N/mm^2 perpendicular to grain
4600 N/mm^2 parallel to grain
Density = 11.6 kg/m^2

Birch ply:-
Eb = 3400 N/mm^2 perpendicular to grain
4600 N/mm^2 parallel to grain
Density = 12.4 kg/m^2

MDF:-
Eb = 2200 N/mm^2
Density = 10.8 kg/m^2

As you can see Birch ply is about twice as stiff as MDF. It's also easier to work with IMO. Being that MDF is very dirty when you cut it. of course you could double the thickness of the MDF and get a major increase in stiffness, but you would also get a huge jump in weight. Perhaps I'm just a sheep, but I'm sure Chris, Andrew or TLS Guy could explain the differences to you with much greater completeness.
 
Shock

Shock

Audioholic General
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Sorry to say but tSc does not ship to Canada yet. We are working on it but unfortunately it will not be free.

Nick
I have the e-mail that states otherwise from you.

Edit: Actually I deleted it, however it states something along the lines of:
"We just started shipping to Canada recently for some products. What were you interested in?"

That was about the time I posted this thread.
 
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