Stereo Integrity's new HT Subwoofer - Page 32

Sweet! Now if you could only get your hands on that Omnimic again to take some measurements...

The box build for me is a go. I'm also interested in the SubM vs SI measurements and impressions.

People looking for SubM deals are going to be pretty happy soon. I love mine and never thought I would want anything else. The way I upgrade constantly though... DIY suits me.

Well I borrowed it from Mr.Submersive so maybe I can get him to bring it over as well.
Edited by edoggrc51 - 1/11/13 at 9:38am

The FR for the two similarly-sized sealed sub systems was almost identical because you are seeing the effects that the room has on the system. Room modes have a HUGE influence on what you're hearing.

I wonder if the extra 'thickness' could be distortion? Mark's Submersive has a well dialed-in limiter circuit that could be eliminating some of the distortion you heard in the Dayton. Many (if not most) people prefer a touch of distortion in their bass. Also, the extra Vd (output) from the Dayton could contribute to the thicker sound.
Edited by Aaron Smith - 1/11/13 at 9:59am

There have been two posts now talking about limiters and HPF's and such. Please remember that most of these comments are about music listening. I'm pretty sure carp's metal doesn't have much at 9 Hz so I don't think that's the source of any of the subjective comments I haven't done any THD measurements on the Dayton so I can't comment on that, dunno if Gorilla or anyone else has.

Even if performance didn't fully match up to a Submersive, the value and efficiency is HUGE. I like performance, and I like value. I buy based on the best performance for the price, and the ability to mod.

The only thing that keeps me (and many others) out of a DIY sub is my terrible box building skills, which makes the SubM the best option. With that covered now (Thanks JB), I have total control over my implementation of my sub and amps, for half the price, using these subs.

I say one dual opposed box will be enough now, but watch me come back in a year itching for another, and another.

I had the Dayton sub for a few days and the vast majority of that time I was listening to music between 80 and 85 db's. At that level the "weightier" sound was still there, so I don't think it was distortion. In fact, that's the db level when I notice it. When cranking movies it was even harder to distinguish the two subs.

I know someone who has a submersive, doesn't live that far from you and is willing to pack it up for a trip. Just let me know where and when.

popalock,
When are you starting your "Bass head turned bass psychopath DIY build" thread? Been keeping an eye out but only find the goods spread around the other threads.

Bring it

Oooohhh!

The guantlet has been thrown...lol

Do you have an omnimic or laptop with REW you can bring along??? Been wanting to invest in a OM for months now, but haven't made it a priority. Would like to take measurments when we do this!

Got too much going on to dive into the build at this point in time. Soon though, maybe a few weeks or so.

If someone had an Omnimic and lives in NY, We could take SubM/SI measurements here as well.

Those new USB mics are so easy to get going with REW (no outboard pre amp, and easier on the soundcard requirements, closer to PNP). You can take your own measurements for under a bill.

When are you all doing this, I can bring my measurement gear maybe, but it's only a crappy RS meter. Hooked into REW it does a decent job at the low end. I still hate trusting the graphs though. I'll prolly get the new minidsp mic or I think there is a Dayton USB now too.

FWIW Carp and Mr. Smithers took omnimic measurements of the Daytons and Submersive already. They measured nearly identical with the Dayton being EQ matched to the submersive's amp eq. I would expect the SI to be very similar if not exact.

Just for you buddy...




This will be the SI 15's.

^My prediction is they will still be very similar.

LOL - nice footage. I like the "stalker cam" aka walking down the stairs with the boxing knife ready to attack.

+1

Just had to document my tough guy response..



Will have under $500 in the box with the drivers loaded (not including labor).

I'll be pleased if they can hang...

until REW does realtime --- my omnimic will be close by my side.

If you're not used to seeing 18's, they are massive. Each woofer is the size of a BIC PL200- the whole box! Output and extension should be quite an upgrade- 10db across the board and 20db at 20hz.

Speaking of that, bring your omnimic tomorrow so we can see how accurate mine is.

Were the cabinets measured in the same room, or were they outside in somewhat of a setting like Josh has been using?

Keep cranking,

Robert

Inside my room. They were both in the same corner, the Submersive stacked on top of the Dayton and the mic was in the main LP.

The BIC PL200 does sound really nice, but high excursion 18's are another story. Not even comparable to say the least. If you are happy with the BIC, you will be smiling from ear to ear with the new ones.


Keep cranking.

Robert

That is why the cabs measured so closely. The room has plenty to do with the results. Take a look at the results from the Great Southern Shootout and see how all the graphs had the same dips and peaks pretty much. The overall extension is what made the difference in the comparsons. The really big drivers were able to give a bunch more output but the basic curves looked quite similar even though the sound differed greatly from system to system.


Keep cranking,

Robert

Holy crap! The H100 I have upstairs is not small either. It looks tiny next to them.

I do have a REW setup with a CSL calibrated emm6 mic. I also have a minidsp USB mic on order that will be sent to CSL. I haven't worked out all the calibration, but I also have speclab.

Archea, not sure if this is what you mean, but REW does have an RTA.

http://www.hometheatershack.com/roomeq/wizardhelpv5/help_en-GB/html/spectrum.html#top

16 SI 18s?? Some of you gentlemen (ladies?) have a serious problem and should seek professional help. Remember, woofer hoarding will only control your life if you let it.

I've had enough trouble dealing with my (humble) pair:



I left the two of them alone in my media room this morning... and when I came home from work there was an empty bottle of Jack and a bunch of little drivers running around.

I have a feeling this is only the beginning of the irresponsibility in store for me.

I have been pretty happy with a pair of ported 15s, and tonight fitted the SI 18 to it's enclosure I have been working on and realized that an 18" driver just takes it to a new level. I'm making this one for my dad, and just realized that now I will have to make a few more for myself. Damnit!

Are the new SI 18's still available for pre-order? Who do I contact to order them?

The pre-order period ended in December. They are in stock and available for order now through their site.

would not the limiter trim the ULF output at high levels?

bossobass posted about it recently



could this also contribute to the differences?