Since this is a forum... Pictures or it didn't happen!
Feel free to use my forum if not enough on topic for here.
If he does that should drive a little more traffic to your forum.
OK guys, here she is....
And look - she has a friend too - do you think they share the rubber suit!
No wonder the Dark Knight rises huh?
LOL! Fabulous. Monosubmersiveitis.... priceless. :)
Have you tried it in a different location such as mid-wall? If so, does it sound better to you or worse? Is losing the 5dB boost the issue? Sometimes it is better to choose quality over quantity.
Do you have any measuring gear at all, such as OmniMic? If you do, measuring what is actually happening at both locations would be a good start I think - then you would see exactly what is going on and what needs attention. If you don't, I think that when one gets to the level of equipment characterised by Submersives, some form of measuring capability becomes essential. If you read the review of my dual F2s that I recently posted, you'll get some idea of the process I had to go through to get the best out of my subs - and I couldn't have done it without OmniMic.
AAMOI why can’t you use a XO lower than 100Hz?
Are you using any form of EQ? Sorry - it's been a long day and I think you mentioned you had Audyssey XT32 didn't you?
Have you tried varying the sub distance (delay) setting that Audyssey found? I would not usually recommend anyone do that if they don't have measuring facilities as it's shooting in the dark otherwise, but it might be worth making a note of the sub distance and then varying it a little in either direction while listening to some content with decent bass. This tweak allows you to improve the splice - Audyssey doesn’t seem all that reliable at setting the delay well. Also, have you tried the sub on the mid-wall and simply increasing the trim level by a few dB to give you back some of the oomph you lost by moving away from the corner? Some people are very good at localising above 80Hz (I am not, fortunately) and this may be compounding your problem there.
One good thing about having a SubM is that you know for certain that the sub, when properly set up, located and integrated is going to give you a world-class performance - so this means any problems or issues are not with the sub itself. And that means they can probably be fixed one way or another.
An OmniMic is a terrific investment, trust me. It makes it so much easier to resolve problems like this.
Incidentally, I cross my MK S150s over at 100Hz - it's not a problem and in fact Mark recommended I try that and I did and it measured and sounded better than 80Hz.
Seems to me that the mid-wall placement is giving you better bass quality and if you settle there for now and run the sub a little hot, you may have done all you can do, in the absence of measuring gear. I personally would always forego a few Hz at the very bottom end for greater quality higher up if I had to make that choice. There is a lot more real-world content from 20Hz up than there is from 20Hz down. Once you get the OmniMic you will be able to measure exactly what is happening and that will open up a lot more possibilities for getting the ULF and the quality. You know your SubM can deliver both quality and quantity, and very low ULF too, so it's going to be a question of having the right tools to unlock that. One of the biggest improvements I made was installing treatments, but you need a lot of WAF points for that :)
Will look forward to seeing those graphs! Sounds like a good result. You really do need measuring gear to get the best out of subs (and some form of EQ too IMO).
Sorry to hear of the problem but great news that it has been resolved so quickly and so well. One of my fears about ordering my two F2s was the risk of damage in transit because returning them from the UK would not be straightforward. Fortunately mine survived their transatlantic journey (via Fedex Freight) and arrived in perfect condition - as you say, the packaging is very robust. Mark's customer service is as good as his subs!
I have posted on AVS & Mark's forum as to how well Mark has treated me. I just wish that he could find the time to post more often.
Lately we are lucky if there is more than one post on either AVS or his forum & then only starting mid week. (His range of knowledge