Looking for a 500wRMS x1 @4ohms amp, suggestions?

[td5turbo 10+ year member]

OK, I think the cadence would be a great amp...but its a class a/b. Doesnt that mean its going to pick up alot more of the music and make the sub sound differently because it will be trying to play what the smaller speakers should be playing?

Also, arent class a/b amps way less efficient than class d's?

So when the Lanzar's amp says "1ohm stable" then at 4 ohms its going to just be working less? So i take it if an amp saying that it works at 1, 2 or 4 ohms and its 2 ohm stable it work at 2 ohms fine, 4 ohms easy and 1 ohm working hard? Just trying to clear that up.

 

[td5turbo 10+ year member]

OK, the Lanzar OPTI1400D amp is $230 from amazon.com new...

Hmm, I think I will save $100 and go with the refurbished one? Is that a smarrt idea or and I setting myself up for complete failure? Like, is a refurbished amp really that bad?

It "says" it comes with a warrenty but who knows if that true or not..

 

[JasonPaul 10+ year member]

OK, I think the cadence would be a great amp...but its a class a/b. Doesnt that mean its going to pick up alot more of the music and make the sub sound differently because it will be trying to play what the smaller speakers should be playing?
Also, arent class a/b amps way less efficient than class d's?

So when the Lanzar's amp says "1ohm stable" then at 4 ohms its going to just be working less? So i take it if an amp saying that it works at 1, 2 or 4 ohms and its 2 ohm stable it work at 2 ohms fine, 4 ohms easy and 1 ohm working hard? Just trying to clear that up.

No a class a/b amp will not play any different then a class d across the frequency band. However a class D amp is usually about 20% more efficient then class a/b. Being that you are only looking for 600rms this should not be a issue for you.. The lower the ohm load on an amp the harder it will work..