[easy]

what is the difference between svc and dvc?? and does anyone have any good internet sites to get alpine subs??

 

[95_XE]

which alpine sub do you want?I might have one for sale, the type s, 200W RMS, 600W peak

 

[easy]

im looking for two 10's or 12's

 

[domm]

try www.thezeb.com right now alot of their alpine is on backorder but they are great for ordering stuff from. if you can find the same product anywhere else online they will beat the price (on my amp they beat it by like $10 so it basically paid for shipping) .

btw svc = single voice coil
dvc = dual voice coils

the dual is usually better and can handle a little more power (i believe)

 

[easy]

thx domm ill check them out

 

[TL]

the dual is usually better and can handle a little more power (i believe)

no, nothing inherently better with a DVC sub. They do offer two wiring options, compared to just one option on an SVC. A dual 4 ohm sub can be wired as 2 or 8 ohms, for better amp flexability.

 

[easy]

man tl you have the answer to everything. thx man. you really know your stuff

 

[Perfect Nissan]

DVC voodoo still lingers around(no offense to anyone)

 

[poisonfist]

Also, when connected in parallel, there will be a 6 dBgain in efficiency.

 

[Perfect Nissan]

why?
And 6db gain campared to what other wiring setup

 

[TL]

Poison, that depends on a few things..

you're right, P=E²/R, Running the sub in parallel will cut the impedance by 3/4.. meaning 4x the power. BUT it all depends on the amplifier, whether it can take the lower impedance load, and whether it is capable of the 4x power jump at the lower load..

 

[Perfect Nissan]

So your talking about 6db gain over series not a svc sub? I see what you mean, isnt the 3db gain for 2x the power theoretical? In the real world there are more factors.....

 

[poisonfist]

Poison, that depends on a few things..

you're right, P=E2/R, Running the sub in parallel will cut the impedance by 3/4.. meaning 4x the power. BUT it all depends on the amplifier, whether it can take the lower impedance load, and whether it is capable of the 4x power jump at the lower load..

Yeah, I agree. As for diferent wiring comparisons, it goes like this: compared to wiring a single VC, when you wire them parallel, 1/2QES, 1/2R, +6dB/2.83V/1m, 1/2LVC. series wired, 1/2QES, 2*R, no gain in dB, 2*LVC.
The electric damping factor increases (decreases in number) when wired either ways.

 

[TL]

The problem is, for a single sub setup, the vast majority of DVC subs are dual 4 ohm, and the vast majority of 2 channel class A/B amps can't handle a 2 ohm load. Also, the majority of those amps don't double power going from 8 ohms bridged to 4 ohms bridged. Most manage only 1.5x the gain..

 

[poisonfist]

The problem is, for a single sub setup, the vast majority of DVC subs are dual 4 ohm, and the vast majority of 2 channel class A/B amps can't handle a 2 ohm load. Also, the majority of those amps don't double power going from 8 ohms bridged to 4 ohms bridged. Most manage only 1.5x the gain..

I thought car audio amplifiers were increasingly becoming more popular to 2ohm stable operation?

 

[TL]

Most are stable to 2 ohm stereo (=4 ohm bridged).. High current amps are becoming more popular, but usually only for sub amp applications, since AFAIK only one company offers 2 ohm full range speakers..

 

[poisonfist]

I see.

 

[Perfect Nissan]

why do you think thats so TL, about most a/b amps not being 2ohm stable? I would think the companies would want to make them 2ohm stable.

 

[TL]

There's not really any need for it, at least for non-sub applications, since almost all speakers are 4 ohm.. and I guess that makes things easier anyway.. That Syopsis 50x2 is stable to .5 ohm per channel, but puts out more power at 1 ohm per channel..

Really only a plus if you plan to run a sub on it.. And for subs, I think high current, class D monoblocks are the way to go..

 

[wakeboarder89]

sorry to be stupid with this, but if i have one sub and one amp, what is the best way sub configuration to buy, 1 ohm, 2 ohm or 4ohm (with a budget in mind) what will 2 omh get me as opposed to 4 ohm, and so on.