Probably Lowes or HD(?). I don't know if you need to go through that type of effort. I would simply have a brace that spanned between the baffles. Two so that would be one on either side of the woofer cutout.
Correct.....you could do it with wood dowels centered at each screw mounting point, glued in place. Tried it and didn't find it any easier though. I have a metal cutoff saw so cutting the rod was as fast as wood...and didn't require any glue up. To boot, rod was cheaper than hardwood dowels.
Less baffle area (not a big deal for subs anyways) and vibration cancellation. Enclosures could resonate with a single sub. With two subs firing at the same time 180 degrees to each other cancels out energy otherwise transmitted to the box.
I'd like to add that my recommendation for two 1262's in a 75L sealed box is a bit light. After simming in Unibox, i like the response in 100L a little better. Two of the 100L enclosures and 1kw of power with DSP.......killer!!!!
Whenever I get the time to build a cabinet for my subs (probably next summer) I think I'm going ported with 60L each, tuned to 23Hz. If I chose to I can plug the ports as well to seal them up, which will give a sealed box with 0.7 Q. These drivers have quite versatile parameters, giving them an EBP of 48, so they work well in sealed or ported cabinets.
"Why does your amplifier hum?"
...
"It hums because it doesn't know the words."
I concur on that choice. When I look at vented options w/ Jeff's WBCD, I like 60-65 liters tuned about the same. Seems to give the flattest reponse and still a manageable port length.
Originally Posted by dcibel
Whenever I get the time to build a cabinet for my subs (probably next summer) I think I'm going ported with 60L each, tuned to 23Hz. If I chose to I can plug the ports as well to seal them up, which will give a sealed box with 0.7 Q. These drivers have quite versatile parameters, giving them an EBP of 48, so they work well in sealed or ported cabinets.
Not suggesting anything. It is just a large low tuned enclosure. People need to look at the various sims and make up their own mind about the merits of each design. 1260/1262 pretty much model the same. Just match your speaker load and amplification. It's great that Infinity covered all the bases with this driver.
Any comments on the inuke 3000DSP vs the Crown XLS 1500. They seem to be priced very similar.
Another question, can i run dis-similar loads on these amp? Say 2 ohm on one channel and 8 or 4 ohm on the other channel? And can the volume of each channel be controlled interdependently?
I am looking at getting one of these amps for the infinity.
the XLS series has volume controls for each channel. Not sure about the nuke.
Also not sure if the different impedence will be an issue, but I doubt it.
On either model you can manage the volume independently. You can run dissimilar loads no problem. From having taken the covers off the Crown is a better built unit than the Behringer. More care has been taken.
Now if Crown would release a DSP upmarket version of the Drive Core series (say $100-130 bump). But that puts it in the XTi range which aren't as quiet as the drivecore. I'm sure they will get there.
So I am going to start building the 100L/3.5 ft^3 slot ported enclosure with the 1262 driver. What type of bracing do you recommend jinjuku? I saw on audioholics that the one guy did a window type bracing. Is that ideal? If so, what are the ideal dimensions/volume for the window bracing? Thanks.
For a box that size, you'll want a brace on every side centered every 8" squared....side to side and top to bottom. They don't have to be window type....double layer 3/4 ply strips will do.
Take each side and divide it into as many 8x8 squares as you can.....doesn't have to be exactly 8"...the nearest multiple would be fine. At the corner of each square, a brace should contact. Example....if the side panels are 24x24, there should be four bracing points, each 8" from each other and the adjacent panel.
Would the Crown xls 1500 be able to handle 4 Infinity 1262 drivers as would the NU3000DSP on each channel? The ratings are 750 watt vs 1000watt per channel for each.
I can add a miniDSP, for the DSP portion...?
The infinities are 300W rms and 1200w peak.... how does it add up. I am not looking at driving either the amp or the speaker at peak, and would be setting them at normal listening level... (whatever that is)
Re: Infinity Reference 1260 - design questions
Originally Posted by jinjuku
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