JL 450/4v2 vs JL 600/4 HD

[Sierra08! 10+ year member]

Looking to upgrade my 300/4v2 for some more power need at least 150 RMS for front comps and at least 75 RMS for real fill, what amp do yall suggest, I get some good deals on JL thats why Im going with JL!

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[rtiid22 10+ year member]

I was recently in the market for a 450/4v2 to upgrade from my 300/4v2 but I was told by 3 different JL dealers that the 450 slash amp was discontinued. So I went with the JL 600/4 HD.

 

[Sierra08! 10+ year member]

How much do you like the 600/4, did you notice any difference in noise from the slash, since this is a class D amp?

 

[rtiid22 10+ year member]

I never had any sort of noise from the 300/4v2 amp and the HD600/4 sound about the same to me but my speakers do really like the extra 75 watts and I have a fuller sound with deeper midbass from my speakers.