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<blockquote data-quote="PhDDevice" data-source="post: 7934540" data-attributes="member: 642625">Hello forum!I was hoping you all could help me with this problem I&#039;ve been having.&nbsp; I feel that my subs are not hitting at their fullest potential.&nbsp; I have a pair of Fi SSD12s (H-QTS) in to separate sealed boxes I made (sealed with a cubic volume of 1.25 cuft [sub displacement included]), to power it I have a Hifonics Zeus ZRX2000.1d, 2 ohm load at subs; running it with Raptor 4 ga, and a Raptor 150A fuse (triple checked all connections).&nbsp; I was told by the people on this for and elsewhere that the ZRX2000 would be just fine on the subs, and I also thought that Hifonics was CEA-2006 compliant.&nbsp; I just don&#039;t feel the huge improvement I was expecting by upgrading the piece Audiobahn 10&#039;s I had, but they really aren&#039;t which tells me I must be messing something up.Should I run the subs at 1 ohm, do you think the amp could keep up?&nbsp; I was gonna get a hold of Hifonics and see if I could return it and get the ZRX3000 instead, get some more power with little money.&nbsp; Or maybe going with their Brutus line?&nbsp; Bigger enclosures?&nbsp; Any thoughts?This is all in a &#039;89 SedanDeville by the way.</blockquote>

[QUOTE="PhDDevice, post: 7934540, member: 642625"] Hello forum! I was hoping you all could help me with this problem I've been having. I feel that my subs are not hitting at their fullest potential. I have a pair of Fi SSD12s (H-QTS) in to separate sealed boxes I made (sealed with a cubic volume of 1.25 cuft [sub displacement included]), to power it I have a Hifonics Zeus ZRX2000.1d, 2 ohm load at subs; running it with Raptor 4 ga, and a Raptor 150A fuse (triple checked all connections). I was told by the people on this for and elsewhere that the ZRX2000 would be just fine on the subs, and I also thought that Hifonics was CEA-2006 compliant. I just don't feel the huge improvement I was expecting by upgrading the piece Audiobahn 10's I had, but they really aren't which tells me I must be messing something up. Should I run the subs at 1 ohm, do you think the amp could keep up? I was gonna get a hold of Hifonics and see if I could return it and get the ZRX3000 instead, get some more power with little money. Or maybe going with their Brutus line? Bigger enclosures? Any thoughts? This is all in a '89 SedanDeville by the way. [/QUOTE]

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