fill35U

I think this could get mighty complicated: What kind of long-term damage are we trying to avoid? If used and stored indoors in a climate controlled environment, temperature (and rapid changes) and humidity (and rapid changes?) aren't an issue. The other culprits are UV light(sunlight or manmade), oxygen(especially ozone!), and migration of plasticizers. So we want the substance we apply to form an oxygen barrier, prevent plasticizers from leaving(and/or replace them), and block UV light if necessary. Perhaps suntan lotion would work? I've used it on automotive vinyl for these reasons, FWIW. Even then, dozens of formulas to choose from. Different mink oil formulations as well, as mentioned above. What might be the negative effects? If the additive softens the surround, it might change the compliance(Vas). The additive could harm the adhesive used to glue the surround to the basket or diaphragm. Or it may cause the surround to swell, dissolve, or weaken to where it's easily damaged. One substance that seems universally despised for all plastics and elastomers is Armorall! The Sunfire subs are around 15 years old now. Has anybody heard of a cracked, dry rotted, or otherwise failed surround? I'd guess hardly anybody applied mink oil to their surrounds as instructed. Maybe Sunfire or Bill Flannery have some data on failures and if mink oil helped? If we knew for sure *what* the surround(and adhesives) and particular "mink oil" consisted of, we could make some better guesses or even experiment.

Received in the mail today. Thanks, Mark! Just finished listening, both disks correct in all tracks. Unfortunately my gf has a migraine tonight, so I can't crank it like I want. The dog perked his ears up on some tracks, though! My old player decided to die (again) last night, I've got (an even older) one coming from Kev. The stand-in is an old ultra-cheap no-name with no digital out, so I'm reserving critical listening until I get the replacement installed. But so far, I'm highly impressed! Good job everybody!

Wow, look at the Q's on that honeycomb woofer! I knew they were high-Q for Bob's open baffle to work, but a Qes of 6.49? Qts of 3.29? And a Vas of 12.5 ft³ ? Zoiks! I've considered aluminum honeycomb material for DIY passive radiators. Anybody have details on the material Orevox used?

I'm not a guru, but if Sunfire wasn't any help, Nick at Stereo Integrity might sell you a similar surround. Maybe the folks at Speakerworks.com ?

Good to know, Rod! From what I've heard, undiscovered cat urine is one of the most destructive substances to *unprotected* leather! Which brand of mink oil do you use? I hate to speculate on the fate of a feline that marked its territory on a speaker belonging to an audiophile...

I have no idea as to what Bob said or whether it could be good or bad. But I did research Mink Oil a couple of years ago when I was looking into preserving leather. Turns out there's not much of a consensus on what it *is* these days. I remember when the popular formulation was mainly lanolin, but I've seen lots of other mixes since. So the question becomes: Which brand? Or which active ingredient? Do we want the *real* weasel juice? (I ended up going with Obenauf's and the ever-yummy Huberd's)

Arrived today: Want a bass test? The "Blow" track with Ludacris and Rocko has steady 25 Hz notes.

"...misunderstandings and neglect create more confusion in this world than trickery and malice. At any rate, the last two are certainly much less frequent." - Goethe

Cool news, Dan! The thread on AVSforum is HERE . That driver looks like it's all surround! 70 lbs, $389 each. Mms is 626g! It would make things *very" interesting if SI started offering compatible passive radiators...

This is for CT-Seven:

Thank you for all your effort, Mark!

"Music washes away from the soul the dust of everyday life." - Berthold Auerbach

In honor of Thanksgiving dinner with family...

Welcome to theCarversite, Bill! That's a sweet setup you've just acquired! Good to see another old Carver pro amp doing well in a home. Looking forward to seeing pics of your gear.

"After silence, that which comes nearest to expressing the inexpressible is music. " - Aldous Huxley

If this doesn't get your toes tapping, you need to check your pulse!