VMPS Larger

vikesfan · « **on:** 19 Oct 2010, 06:57 pm »

Want to replace the drivers in my VMPS larger as the foam has started to rot. Suggestions on upgrading to the Megawoofers or not? What would be the cost?

John Casler · « **Reply #1 on:** 20 Oct 2010, 01:37 am »

Quote from: vikesfan on 19 Oct 2010, 06:57 pm

Want to replace the drivers in my VMPS larger as the foam has started to rot. Suggestions on upgrading to the Megawoofers or not? What would be the cost?

Both the 12" and 15" Megawoofers are $125 each.

The Passive Radiator should also be replaced and is $59

GO VIKINGS

vikesfan · « **Reply #2 on:** 20 Oct 2010, 02:48 pm »

Is there a place to order them on-line or a local dealer (I'm in Denver)? After further inspection, it looks like one of our cats got to the foam

Looks like it's time to put the guard back on...

blownrx7 · « **Reply #3 on:** 20 Oct 2010, 03:39 pm »

How about going to the OMG woofers desccribed here:
http://www.audiocircle.com/index.php?topic=84003.0

Maybe call them to see if they sell the drivers separately now. Can't see why not.

John Casler · « **Reply #4 on:** 20 Oct 2010, 08:46 pm »

Quote from: vikesfan on 20 Oct 2010, 02:48 pm

Is there a place to order them on-line or a local dealer (I'm in Denver)? After further inspection, it looks like one of our cats got to the foam Looks like it's time to put the guard back on...

I have PM'd you the info.

Cats love VMPS (and other speakers too) but can be a problem if they find the surrounds with their claws. Now of course your SUB's grill might also look like one of the best scratching posts available.

John Casler · « **Reply #5 on:** 20 Oct 2010, 08:48 pm »

Quote from: blownrx7 on 20 Oct 2010, 03:39 pm

How about going to the OMG woofers desccribed here:
http://www.audiocircle.com/index.php?topic=84003.0

Maybe call them to see if they sell the drivers separately now. Can't see why not.

OMG is BEYOND Wild as far as SUBS go.

With the LARGER, you'd need only the 15" OMG Driver and the Big BUMP PR.

You'd need to put a plate over the 12" opening.

But You would have a SUB that would blow the doors of most anything under $2k

The OMG (15" TC and 15" BBPR) is $479 plus shipping.

jwalker · « **Reply #6 on:** 22 Oct 2010, 04:39 pm »

Quote from: John Casler on 20 Oct 2010, 08:48 pm

OMG is BEYOND Wild as far as SUBS go.

With the LARGER, you'd need only the 15" OMG Driver and the Big BUMP PR.

You'd need to put a plate over the 12" opening.

But You would have a SUB that would blow the doors of most anything under $2k

The OMG (15" TC and 15" BBPR) is $479 plus shipping.

Is it possible to put the OMG 15" woofer and new PR into the Supertower IIa/r? It's bass driver arrangement appears to be very similar to the VMPS Larger.

Brian Cheney · « **Reply #7 on:** 22 Oct 2010, 04:59 pm »

Yes, the lowbass system on the IIa/R is the same as the Larger sub. You can plug in the TC 15" and Big Bump PR with no xover change.

jwalker · « **Reply #8 on:** 22 Oct 2010, 06:00 pm »

Quote from: Brian Cheney on 22 Oct 2010, 04:59 pm

Yes, the lowbass system on the IIa/R is the same as the Larger sub. You can plug in the TC 15" and Big Bump PR with no xover change.

Does plating over the existing lower 12inch woofer hole also apply for the IIa/R? Thanks.

Brian Cheney · « **Reply #9 on:** 22 Oct 2010, 06:16 pm »

No, this is not required on the IIa/R. It's not required on the Larger either, particularly if you substitute the 12" TC for the old lowbass driver.

John Casler · « **Reply #10 on:** 22 Oct 2010, 08:32 pm »

Quote from: jwalker on 22 Oct 2010, 06:00 pm

Does plating over the existing lower 12inch woofer hole also apply for the IIa/R? Thanks.

As Brian mentioned, unless you remove the 12" you don't need to cover the opening.

I'm not aware of anyone getting a LARGER with "BOTH" the 12" and the 15" OMG yet.

One can only imagine what that bad boy would be capable of.

doug s. · « **Reply #11 on:** 24 Oct 2010, 08:59 pm »

is it possible to update an older wertical-style larger sub w/the 12"/15"/passive? cost per pair? is the cabinet (w/original soundcoat option) up to it? any idea about db-rating w/this, at 1w/1m?

thanks,

doug s.

John Casler · « **Reply #12 on:** 24 Oct 2010, 09:08 pm »

Quote from: doug s. on 24 Oct 2010, 08:59 pm

is it possible to update an older wertical-style larger sub w/the 12"/15"/passive? cost per pair? is the cabinet (w/original soundcoat option) up to it? any idea about db-rating w/this, at 1w/1m?

thanks,

doug s.

Hi Doug,

As above both the 12" and 15" Megawoofers are $125 each.

The Passive Radiator should also be replaced and is $59

The cabinet should be fine, although you can add bracing if you like.

One of my customers even put the "ULTRA-MegaWoofer" in the Tall Boy and loves it.

I don't know about performance numbers. Brian might be more help there.

doug s. · « **Reply #13 on:** 24 Oct 2010, 09:13 pm »

hi john,

i upgraded my subs w/the megawoofers some years back. i was wondering about the 12"-15"omg/bbpr upgrade...

thanks,

doug s.

John Casler · « **Reply #14 on:** 24 Oct 2010, 09:39 pm »

Quote from: doug s. on 24 Oct 2010, 09:13 pm

hi john,

i upgraded my subs w/the megawoofers some years back. i was wondering about the 12"-15"omg/bbpr upgrade...

thanks,

doug s.

Got it.

It is $779 plus shipping w/return of your megas.

That would give you one of the most powerful and formidable musical subs in existance.

Keep in mind to produce the maximum performance and quality capable with that level of upgrade, you would need at least 1Kw and preferably 2Kw of sub amp.

Again, B would have to answer the specs if he has had time to measure or calculate, but you might want to tape the windows before the Telarc 1812 Overture's Cannon Shots.

Brian Cheney · « **Reply #15 on:** 24 Oct 2010, 09:40 pm »

With the TC Sound 15" the sensitivity is a little lower, 90dB/1W/1m.

doug s. · « **Reply #16 on:** 30 Oct 2010, 05:42 pm »

john, why would i need such megawattage? if the subs would be 90db-efficient, 130wpc would get me >110db per sub, for >113db for a pair. i can understand that more power would be nice in an auditorium or something!

thanks,

doug s.

Brian Cheney · « **Reply #17 on:** 30 Oct 2010, 06:20 pm »

I find the 1000W amp adequate and the 500W plate amp we offer a bare minimum. Nothing smaller has ever worked for me in the real world, but you're welcome to try.

John Casler · « **Reply #18 on:** 30 Oct 2010, 06:37 pm »

Quote from: doug s. on 30 Oct 2010, 05:42 pm

john, why would i need such megawattage? if the subs would be 90db-efficient, 130wpc would get me >110db per sub, for >113db for a pair. i can understand that more power would be nice in an auditorium or something!

thanks,

doug s.

I have always found mathematical computations of power to SPLs lacking.

While I think one would find a couple hundred watts satisfactory for light listening, the 1kw amp we offer is certainly far better for large orchestral works at LIVE listening levels, and the 2kw suggestion is for those brave souls who want maximum performance for HT.

So as Brian said in the "real world" the effortless response to bigger amps seems to have a quality to it that doesn't hold back.

Now days with the 1kw amp ($549 msrp) at $399 to AC members, it doesn't take too much to get there.

I might also add that your power needs may also depend slightly on how broad a frequency spectrum you dial in.

Best thing is to try your amp, and if it doesn't "cut the mustard", then move up.

Trying to think when was the last time I "cut mustard"

doug s. · « **Reply #19 on:** 30 Oct 2010, 07:44 pm »

thanks for the tips. w/my megawoofered larger subs, i have had good results w/my 75wpc (150 into 4 ohms) pair of electrocompaniet stereo aw75dmb's, one amp on each sub; each channel driving one woofer. tho not a lot of power, these amps will output ~80 amps of current; they did fine in a ~26x38x8.5 room. i know they're a bit more efficient than the latest drivers, tho.

if i wanted high power, at least it's not expensive when you aren't looking for finesse; which isn't needed for frequencies below ~80hz, imo.

doug s.