Sub-Antics: The Crossover Subwoofer

[RINNAV]

Sub-Antics: The Crossover Subwoofer

I figured I would quit hijacking Silver's thread and start a little build thread of my own. The Sub is Infinity 1260w "Reference" designed for car audio. As I am sure most you have seen, there were quite a few threads discussing the potential of this sub in sealed 36Lenclosure so I decided to try TWO for myself. As of now, the subs are being run off of an Emo XPA-3 but later this week I will have a Crown XLS 1000 running them (I will report findings on this combination later in the post).

Well, TimK and I were throwing around ideas and this is what we came up with...


Here is the model at 300 watts:

[RINNAV]

Here is a sweep straight out of the box for both subs:

[RINNAV]

I thought I took some pictures of the cutting and assembly but evidently not--or the wife deleted them when she pulled the sports pictures off the camera... The enclosures will be stained (to be determined) Maple on the sides/top and some sort of coating on the 1.75" baffle front/back.

1) Front View

2) Rear View

3) Internal Bracing

[RINNAV]

I plan on doing some in-box measurement once the second one gets a chance to break in--stay tuned.

[timk]

When is that Crown going to show up? I'm anxious to hear this combination.

[Silver1omo]

Did the crown arrive? How do you like it?

[RINNAV]

The Crown XLS1000 is sufficient and seems better running through the XLR inputs. If I were to do it over I think I would buy the XLS1500 just to have that extra headroom. Other than that, no complaints, the combination is a nice match. I am still nitpicking on placement and room nodes which I think may be skewing things a little.

It would be interesting to see how the XLS1000 would act on a 2 ohm stereo load with the DVC version

[fastbike1]

You could always buy another and bridge them (can't find the evil temptation smilie)

The Crown XLS1000 is sufficient and seems better running through the XLS inputs. If I were to do it over I think I would buy the XLS1500 just to have that extra headroom. Other than that, no complaints, the combination is a nice match. I am still nitpicking on placement and room nodes which I think may be skewing things a little.

It would be interesting to see how the XLS1000 would act on a 2 ohm stereo load with the DVC version

[RINNAV]

You could always buy another and bridge them (can't find the evil temptation smilie)

Ha! I definitely don't need any help in that area!


I just pulled the trigger on my 3rd Emo amplifier... Just can’t' seem to come off the $$ for a couple of XPA-1 monoblocks though

[Silver1omo]

It would be interesting to see how the XLS1000 would act on a 2 ohm stereo load with the DVC version

Hopefully I'll buy a XLS1000 this weekend and see how it behaves

[Silver1omo]

Got the XLS 1000 but got home too late to play with it. At low volume driving a 2 ohms load (1262 wired in parallel), it sounds great.

I'll run audisey tomorrow and play a bit. For the moment I only have 1 sub.

[RINNAV]

Ok, I am curiously awaiting your thoughts on the 1262/2ohm stereo version with the XLS1000... Are you running the inputs into the XLR connections or RCA?

[Silver1omo]

RCA, I do not have any XLR cable or connector around.
I run audissey and listened to some Coltrane, Black Sabath and Tracy Chapman. Deffinitelly sounds great. Then watched "Ninja asassin" on BR and the bass was very satisfying. Also tested it with "Immortals" the scene where Teseus closes the gate it's quite demanding. I liked it. If the fan turned on at any point I was unable to hear it (I hated the fan of my old sub amp). I also tested the XLS1000 driving my statement monitors

[jinjuku]

RCA, I do not have any XLR cable or connector around.
I run audissey and listened to some Coltrane, Black Sabath and Tracy Chapman. Deffinitelly sounds great. Then watched "Ninja asassin" on BR and the bass was very satisfying. Also tested it with "Immortals" the scene where Teseus closes the gate it's quite demanding. I liked it. If the fan turned on at any point I was unable to hear it (I hated the fan of my old sub amp). I also tested the XLS1000 driving my statement monitors

I had the XLS1000 on my Statements also (with a few other amps for comparison). Amazing what you can get for $299.

Have you anything to compare the Infinity subs to directly? Really curious now.

[Silver1omo]

I had the XLS1000 on my Statements also (with a few other amps for comparison). Amazing what you can get for $299.

Have you anything to compare the Infinity subs to directly? Really curious now.

Only my old crappy Sharp sub so nothing to make a good comparison.

[fastbike1]

Man, you guys have turned my project list upside down.

I have the pair of 1260w's, the XLS1000, and several RCA/XLS cables and a sketchup model. Sounds like I really need to be cutting wood shortly rather than starting one of the other projects.

[jinjuku]

Man, you guys have turned my project list upside down.

I have the pair of 1260w's, the XLS1000, and several RCA/XLS cables and a sketchup model. Sounds like I really need to be cutting wood shortly rather than starting one of the other projects.

Do it, Do it, Do it (cmon' everyone start chanting). Nothing like DIY peer pressure.

[Silver1omo]

Do it! I'm gluing the last panel of my raw second box. Hopefully I'll start finishing the first one this weekend.

[fastbike1]

So pushy y'all.

Here's the plan. I owe thanks to somebody on the forum that posted a picture of their build for this idea. Sadly, though i saved the picture I didn't save the creator. So whoever you were, thanks for the inspiration.

Thinking the light wood will be German "eye" burl beech (not quite like birds eye) with mahogany or andiroba legs and trim.

I'll finish the Imperial Russian Stouts in a couple of weeks, so these will be next. Emplying them in the HT room will require offloading quite a bit of vintage audio gear so I expect you cheerleaders to line up on Ebay .

[RINNAV]

Are you going to down-fire those? I like the rendering. I was thinking of something similar at first.

So pushy y'all.

Here's the plan.