Rep Power: 310

Sounds like you haven't actually put your ear to them yet, Lud? Just curious, if you are going on specs, word of mouth or if you've actually heard them. I've never heard OF them but you've got me interested if you're putting them against CLs.

 
Rep Power: 0

word of mouth on caraudioforum.com
check elitecaraudio.com , this guy cheapboy on there did a full test of them

 
Rep Power: 0

So if I had a 4 channel amp, and bridged two channels for the subwoofer. Those bridged channels are only stable up to 4 ohms. Then I would have to buy an IDQ DVC 4 ohms and wire it in series? That would make an unbridged channel see 8 ohms, but the bridged channel will see 4 ohms, which is what I want. Is that right?

 
Rep Power: 310

You got your math right. However, if you haven't already bought any equiptment, there is no reason why you can't look for a 4 channel amp thats stable to 2 ohms. Depending on your budget you may want to look into a 2 channel, mono amp setup where the 2 channel runs the fronts and the mono runs the sub. Thats a great solution too. I run JL 300/2 to the components and the 500/1 to my subs.

 
Rep Power: 0

Okay, you and whiterabbit are telling me two different things.

 
Rep Power: 310

What is he telling you differently than me? Explain. I don't even see a single post in this thread by him.

BTW, Adwag I hope you don't mind this thread was hijacked . . . ?

 
Rep Power: 0

Okay, I just bought the Lightning Audio X1.800.4 from Alex053. I plan to bridge two channels for the subwoofer. It is only stable at 4 ohms when bridged. I'm planning to get an IDQ12, but according to you. I will need a DVC 4 ohm.

I've been PMing with whiterabbit asking a subwoofer suggestion with the 400 watts of bridged power I'm getting. He realizes that it is only 4 ohm stable mono. He told me that I will need a DVC 2 ohm. I just want to make sure before I buy the sub.

 
Rep Power: 338

any amplifier is stable to half the impedance its stable to, stereo.

thus, an amplifier that is 1 ohm stable stereo is 2 ohm stable mono. not just 4, and definitely not 1!

when running mono, it really doesnt make a difference what the amplifier "sees" stereo, since its a mono load, and its mono stability is whats important!

In this specific case, I believe the amplifier was 2 ohm stable stereo, and thus 4 ohm stable max, mono. So, no matter what, thats the lowest load the amplifier can handle, mono. therefore, his single subwoofer should be 2 ohm DVC or 4 ohm SVC. (or 1 ohm QVC, or 4 ohm QVC.... etc)

anyways, if it is really important, the reason an amplifier is stable to half the impedance mono is that it runs the channels effectively at half the load. notice how if an amplifier is 50 rms at 4 ohms stereo, its twice that, or 10 rms at 2 ohm stereo, then FOUR times that, or 200 rms bridged 4 ohms mono? with a 4 ohm load mono, the amplifier technically sees a 2 ohm load on each channel. but since each channel is working to power the same device, its really a moot point. but that explains where the power comes from.

 
Rep Power: 0

Thanks for clearing this all up.