fosgate hx2 &1500w amp

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Platinum - Posts: 5,352

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Joined: November 01, 2003

Location: Alberta, Canada

Posted: January 21, 2004 at 5:15 PM / IP Logged

The 401S is a 2 channel amp that is not stable at 2ohm mono for any extended period of time, it is not a good choice for you. Make sure the amp is 2 ohm mono stable, most mono sub amps are. Lightning Audio B2.350.1 is also a really good mono sub amp to consider.

Top Secret, I can tell you but then my wife will kill me.

walty220

Copper - Posts: 75

Joined: January 15, 2004

Location: United States

Posted: January 21, 2004 at 6:34 PM / IP Logged

thats amps what the guy at custom audio concepts, inc suggest to me, the 401s

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Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: January 21, 2004 at 6:39 PM / IP Logged

Sounds like a commission sales person at work, it may be that this is the only amp he has left that will come close to what you need, trust us, it is not the right amp to drive one dual 4ohm HE2 or HX2 subwoofer. (dual 2ohm - different story)

Top Secret, I can tell you but then my wife will kill me.

walty220

Copper - Posts: 75

Joined: January 15, 2004

Location: United States

Posted: January 21, 2004 at 6:44 PM / IP Logged

I'm not doubting you, it may be dual 2 ohm though. He said this is a common set up they sell, whats the case if its a dual 2 ohm?

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Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: January 21, 2004 at 6:58 PM / IP Logged

If it is a dual 2 ohm, you are good to go. Wire the sub in series to achieve a 4 ohm mono load. This means to hook one voice coils positive to the other voice coils negative, this leaves you with one positive and one negative to go to the bridged outputs of the amp, in this case the 401s.

Top Secret, I can tell you but then my wife will kill me.

walty220

Copper - Posts: 75

Joined: January 15, 2004

Location: United States

Posted: January 21, 2004 at 7:02 PM / IP Logged

Thanks, do you know how many watts i'd be pushin with a dual 2 ohm on the 401s??

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Platinum - Posts: 5,352

Joined: November 01, 2003

Location: Alberta, Canada

Posted: January 21, 2004 at 7:07 PM / IP Logged

The HE2 is usually stamped as a 400w rms sub and the amp as a 400w rms @ 4 ohm mono amp. Count on the amp producing more power than it states and the sub can handle more than it states, how much more, well it really depends on a lot of factors. How loud though, this depends on the efficiency of the amp, the input voltage the amp sees from the cd player, the source material being played, the type of sub box used.... there are a lot of factors that can make it sound good and sound loud.

Top Secret, I can tell you but then my wife will kill me.

wvsquirrel

Gold - Posts: 1,237

Joined: July 27, 2002

Location: Florida, United States

Posted: January 21, 2004 at 7:32 PM / IP Logged

Alright, I may have missed something, but I don't remember seeing if you originally wanted (1) Power HX2 or (1) Punch HX2. The Power HX2's only come in 2ohm DVC (RFR31xx), while the Punch HX2 comes in both 2ohm (RFD21xx) and 4ohm DVC models (RFD22xx).

I saw Beberman reference the RFD (Punch series).

You could run (1) 4ohm DVC Punch HX2 from an RF Power 500bd or Power 501bd at a 2ohm total load (wired in parallel). The sub is 500 RMS, and the amps are both 500 x 1 @ 2ohms. It's a perfect match.

You would be A LOT happier with 1 Punch HX2 versus 1 Punch HE2.

Squirrel

"No more Cpt. Kirk chit chat"

If its too loud, then you're too old

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wvsquirrel

Gold - Posts: 1,237

Joined: July 27, 2002

Location: Florida, United States

Posted: January 21, 2004 at 7:36 PM / IP Logged

BTW, for 10's and 12's...

Power HX2 is 1000 RMS 2000 Peak

Punch HX2 is 500 RMS 1000 Peak

Punch HE2 is 400 RMS 800 Peak

The specs for 8's, 15's and 18's are a little different

Squirrel

"No more Cpt. Kirk chit chat"

If its too loud, then you're too old

Donate to the12volt.com

wvsquirrel

Gold - Posts: 1,237

Joined: July 27, 2002

Location: Florida, United States

Posted: January 21, 2004 at 7:44 PM / IP Logged

Here's the Rockford DVC Manual that covers the Punch HE2's, Punch HX2's, and Power HX2's for more info

Squirrel

"No more Cpt. Kirk chit chat"

If its too loud, then you're too old

Donate to the12volt.com

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