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Ok. Here is the first of the SVS charts. Should be self explanatory and is interesting how the two subs combine in the room. Link Removed -=Bob=-

Well, the frequency response without the BFD is pretty ragged. Biiger bumps and deeper dips than with the Sunfires. I'm still moving and measuring without the BFD in right now. Back with a graph in a little while.

Just posted this in another thread re: my new SVS subs:

Talked to Behringer US and no insight, but 1-6 weeks to repair depending on parts. So called my dealer and he will exchange it for me. So, may never know what the problem is/was. Just a head's up to all BFD owners that this can happen. I hope it was a one in a million fluke. -=Bob=-

I *think* I just discovered a problem with my BFD. A little background: The other day I was tweaking (it never ends :) ) and playing the Stryke disc at about 80dB through my DVD player, pre/proc, BFD, powered subs. The level jumped about 20dB. I quickly shut ebverything down and tried to figure...

Its true! Even after Ebay and PayPal fees and shipping, I made over $300 on the deal. That's going to go to either new mains stands or better room treatment. You can be sure there will at least be a graph of the non-BFD'd room the day UPS shows up. I think I am going to EQ each SVS on a...

Well guys, both sunfires sold in about 18 hours on Ebay. Just ordered 2 SVS PCi25-31's tuned to 22 Hz. Watch for new graphs in a few weeks :) -=Bob=-

Thanks, Bruce. I'm off to go read about Servo 15's :) -=Bob=-

Bruce, Brian just sent over this graph of his SVS RAW data. He also commented, and I agree, that the extension is probably either the reason or a big contributor to the effect of U571, but even the kick drums in Hell Freezes Over and Steely Dan had an excellent quality on the SVS that I can get...

I'm out of rack space and would prefer the Pci's. But then again, I *could* wait for the Pc+, that would probably add 50% or so to my budget. So, the Pci's seem like the logical choice. Maybe:) -=Bob=-

Bruce, I tend to agree with your assessment. I turned the Sunfires up another 6dB today "just to see" and it was better, but not like the SVS at Brian's. I've been chatting in email with Tom V and I think I have arrived at the point of decision that a pair of 25-31's are the way to go for...

Brian, I just played U571! I had to check to make sure the Sunfires were on. I was embarrassed. For the rest of you, I had not heard this DVD and Brian played it on his system for me. Then loaned it to me to take home. Wow.I even turned the subs up a few dB and still no go. The bottom just is...

Well, guys, I think I mentioned that someone about 12 miles away had read this thread emailed me with a kind offer to come over and hear his SVS 25-31. I took him up on that this afternoon. Now he has a small and difficult room. And where I will place my speakers within a 1/4" of symmetry, he...

Hi Sonnie, Nice to see you back here. And don't forget, I couldn't have gotten to this point without you guys!!! It is sounding the best it has sounded. What I have noticed since my last post is that a -5dB from reference level, it sounds very good. But at -12dB from reference, where I...

Bruce, Great stuff. I wish you had posted about your house curve solution BEFORE my last 10 or 15 hours of tuning;) Btw, someone reading this forum who happens to live 10 or 12 miles away and owns an SVS sub invited me over to listen. I'm looking forward to hearing the difference and seeing...

Hi Brian, You know, the question is: do I want the house to shake?? I can easily turn up the Sunfires and have pictures fall off the walls, but that isn't accurate reproduction. On the other hand, if I am missing bottom bottom frequencies that would make a difference without raising the sub...

Its not. Just follow Sonnie's tutorial. You'll be amazed how quick you get to understand the device. But, in a bad room such as mine, it is tedious to get it tweaked. And I am a perfectionist. Best tip I can give anyone here is that I have found that the bandwidth setting always works better...

Ok, another 4 or so hours into this today. I started by re-graphing the bypassed FR since I had adjusted levels last night. Also tried graphing just one sub and amazingly, discovered my bypassed response is MUCH smoother with 2 subs rather than one. (These are in both front corners, btw) They...

Hi Bruce, Actually, this is the same technique I used in the other position. I lowered the peak at 31.5 to match the peak at 22, then lowered the resulting peak with the filter broadly centered at 28. The shelf, at that point, is about an octave wide. I'll play with the software, and repost...

Well, as promised, I spent about 5 hours today playing with the subs and the BFD. The first thing you might notice is I moved them and you'll see the resulting room curve with the BFD in bypass mode. I am getting quicker with using the BFD :D The room curve and house curve look good to me and...

Well, haven't tinkered much since my last post, but I am not happy still with the results. I'm thinking maybe it is time to sell off the Sunfires and buy a pair of SVS subs that everyone here seems so happy with. Those that have followed my story - do you think this might fix the "bloom" and...

Just thought I'd keep current here and post this week's observations. Its not there yet. What I am finding is that kick drum, in some cases like Hell Freezes Over or even Steely Dan Gaucho, has what I might call "bloom". It sounds a little like a tympani and has ring and overshoot, lack of...

Thanks Sonnie. Wes, I agree with a lot of what you say. I have been following other discusions and things like the THX exploding ball, the Matrix helicopter crash, the Pearl Harbor attack, etc just don't sound like I hear other people describing them. Thy're good, don't get me wrong, and MUCH...

Thanks, Wayne. Lot of work to get here and sincerely appreciate all the help and suggestions. How does it sound? Honestly, I haven't listened enough yet to tell.As I said, intial reaction is that I am missing a little bit of slam and perhaps have a little too much bloom. Hard to describe in...

Ok, I'm done for awhile ;) This is the last of about 18 charts today. Getting very close. Missing just a tad of slam, but I'm going to live with this for a week and see how it all "feels". Always appreciate your suggestions. -=Bob=- Link Removed

Ok, I've got another 4 hours so far into this today and making progress. I'm going to kill all the graphs above and post a new one in about an hour. You'll notice a new curve without the BFD in as the gain has been raised and that excites the room a little differently. Back soon... -=Bob=-

Hi Sonnie, Thanks so much for your thoughts. Absolutely no problem on the flashing dashes. I just needed to check in here to see if maybe my unit was defective. I have put the project on hold since my last posting. I was getting worn out. I probably had 60 or 70 curves on my desk and was...

Just a note to say that I have played with sub level and it makes a BIG difference now. But raising the level has thrown a lot of things out of whack. Dips and bumps are now more pronounced and I'm afraid I have mucked things up a bit. Ran out of time yesterday, but will start now with a new...

Not sure I understand, Wayne. This curve looks the smoothest overall to me. It is flatter, and I am beginning to believe in the House Curve theory, but why would you say this is rougher? As to House Curve, do you believe it needs to rise from 100 down or would 50 down suffice or even be...