Rsdc vs Xmax

jbob0124 · Post by **jbob0124** » Sat May 22, 2010 4:20 am

I've got a pair of Xmax 12's now, but I saw a pair of new RSDC's up for sale and thought of grabbing them as they are just over $200 shipped. What are your thoughts on these two?

Post by **Bfowler** » Sat May 22, 2010 8:52 am

some oldschoolers might try and hang me for this....but i think the rsdcs are better in every way. all the xmaxs got going is they can handle some power and are very responsive. which the rsdc has in spades too. the biggest difference is the rsdc will play much much lower. if you listen to classic or alternative rock...you probably wont care. if you listen to hiphop, techno, some metal, or something else with synthesized beats...it will be a big step up

Post by **Rold Gold** » Sat May 22, 2010 8:58 am

While I love the Xmax's, I'll agree with Brian... The RSdC is a better driver IMO. But I think the xmax still an awesome driver aswell....

MW3 · Post by **MW3** » Sat May 22, 2010 9:05 am

RSDc...

Xmax is a great driver but RSDc stomps it...

Ti is the next generation of RSDc. Dual spiders, more Xmax, longer throw motor!

jbob0124 · Post by **jbob0124** » Sat May 22, 2010 11:46 am

I figured you would all say that, now im going to have to buy them. Although I love my xmax's and will definitely be hard parting with them. Thanks for your inputs and I'm shocked to see Moe posting in one of my threads

EDIT: also one other question. I've had my xmax's since I bought them in 97-98 and never had a problem. Do you suppose the Rsdc's will hold up just as long?

waynehead · Post by **waynehead** » Sat May 22, 2010 12:08 pm

as long as you keep the signal clean any woofer should last that long. ive still got a sapphire 12 that sounds good

jbob0124 · Post by **jbob0124** » Sat May 22, 2010 12:16 pm

Just bought them, 2 Rsdc 124's $219 shipped. I've never messed with DVC's before, so I might need some input on how to set these up. These will be going on zpa's. Opinions?

todd217 · Post by **todd217** » Sat May 22, 2010 12:41 pm

well since the zpa's make the same power at 1 or 4 ohms unless you mod it. just wire them to 4 ohm mono load. coils in series then drivers in parallel. btw i dont think the zpa will run at 1 ohm mono in high power mode if you mod it.

Stryker · Post by **Stryker** » Sat May 22, 2010 3:19 pm

while all the above may be true... would the above fans take the RSdc 12's over Xmax 15's? I've been thinking about downsizing and running the twelve's for awhile now but cannot make up my mind

. my car has loads of output and goes fairly low as it sits,

but the curiousity in me says I need to try the RSdc 12's at 1200 watts a piece.

Post by **Bfowler** » Sat May 22, 2010 4:42 pm

i still would take rsdc12's over the xmax15's, even if space wasnt a factor

jbob0124 · Post by **jbob0124** » Sat May 22, 2010 4:53 pm

I'd take the 12's too, never been a fan of 15's. Although I obviously can't compare the 15's to the Rsdc's

Post by **smgreen20** » Sat May 22, 2010 5:05 pm

todd217 wrote:well since the zpa's make the same power at 1 or 4 ohms unless you mod it. just wire them to 4 ohm mono load. coils in series then drivers in parallel. btw i dont think the zpa will run at 1 ohm mono in high power mode if you mod it.

While designed to, it actually drops power at 2 ohms, in a test done on a 0.5 it did ~1110 watts X 1 @ 4 ohms, and ~850 watts x 1 @ 2 ohms. If you do the mod then it will go up in power at 2 ohms. I saw a report (been a while can't remember specifics) that it did in the neighborhood of 1600 watts x 1 @ 2 ohms modded. The review was done by Car Stereo Review. I had scanned and posted the review it the lit section here.

My 0.5 is wired to 2 ohms x 1 and not modded and set at 1100 watts and the 550 watts to each TREO SSi12.22 sub is plenty, though I'm going to get a Ti2500.1 for them... at some point.

jbob0124 · Post by **jbob0124** » Sat May 22, 2010 5:09 pm

Yeah im still fuzzy on the set up. Not sure if im going to put them on one zpa .3/.5 or if im going to give each sub there own .3/.5

todd217 · Post by **todd217** » Sat May 22, 2010 5:20 pm

yes it drops its power at 2ohms but at 1ohm mono it makes full power in high current mode. how many zpa's do you have?

Post by **smgreen20** » Sat May 22, 2010 5:23 pm

Here's a link to the review. It's about 2/3's of the way down.

http://phoenixphorum.com/pg-scanned-lit ... 62-25.html

jbob0124 · Post by **jbob0124** » Sat May 22, 2010 7:14 pm

todd217 wrote:yes it drops its power at 2ohms but at 1ohm mono it makes full power in high current mode. how many zpa's do you have?

2 zpa 0.5's and 2 zpa 0.3's

MW3 · Post by **MW3** » Sat May 22, 2010 7:16 pm

Stryker wrote:while all the above may be true... would the above fans take the RSdc 12's over Xmax 15's? I've been thinking about downsizing and running the twelve's for awhile now but cannot make up my mind . my car has loads of output and goes fairly low as it sits, but the curiousity in me says I need to try the RSdc 12's at 1200 watts a piece.

Xmax15's will certainly have more output and impact. Kinda hard to compare apples and oranges....

We did some Xmax15's in vented boxes back in the day, wow, those things could hurt you....

Tiger · Post by **Tiger** » Sun May 23, 2010 1:32 am

The 15s can do some damage, yet still maintain a surprise amount of SQ. We had a show car down here in the south eastern suburbs of Victoria and I tell ya what, this thing sounded gorgeous! The 2 x V.2 15s were parallelled onto a Boston GT28 if I can recall correctly.

But back onto the discussion of 12" Xmaxs, I've got a pair myself. I'd only lose these if I could get my hands on 3 x 10s.

brenzbmr@sb · Post by **brenzbmr@sb** » Sun May 23, 2010 11:07 am

xmax 15 ftw! hey moe, i know what alignment u talking about too, yeah it was nasty.

just wanst for me.

I would say take the rsdc 12s

newer technology and I recall xmax 12s are picky woofers. kinda hit and miss.

i love mine, the ones im putting in my frineds car sound good but lack major output, but u can really enjoy this bass, detailed and has that distinct sound of an xmax.

jbob0124 · Post by **jbob0124** » Sun May 23, 2010 11:12 am

Well since the subs are in transit already, its a little late to change my mind

Unless of course I turn around and sell them. I don't have any doubt that the xmax's will hold up for quite some time as they have made it this long, but I do like the thought of having something that is new. Im sure I will be happy with the rsdc's.

brenzbmr@sb · Post by **brenzbmr@sb** » Sun May 23, 2010 11:46 am

keep us informed, what is your box size btw?

jbob0124 · Post by **jbob0124** » Sun May 23, 2010 12:24 pm

Right now they are sitting in a store bought sealed wedge box @ 1cf per sub. When they were in my truck I had them hooked up to a zpa.3 and it sounded pretty good without all the bells and whistles. When I actually getting around to doing a real install the rsdc's will be going in a fiberglass box with all the bells and whistles.

brenzbmr@sb · Post by **brenzbmr@sb** » Sun May 23, 2010 12:28 pm

oh darn u should have put those xmax in 2.5cubic ft each

they will wake up.

let us know when u get it all in there

12voltjunky · Post by **12voltjunky** » Mon May 24, 2010 2:37 pm

brenzbmr@sb wrote:oh darn u should have put those xmax in 2.5cubic ft each

they will wake up.

just out of curiosity, is this recommendation for
a sealed enclosure?

jbob0124 · Post by **jbob0124** » Mon May 24, 2010 2:46 pm

I think sealed is anywhere from .6cf for spl and 1.4cf for sq