2 ohm load into a 4 ohm amp?

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aventado69

Member - Posts: 2

Joined: September 17, 2006

Location: United States

Posted: September 18, 2006 at 12:03 AM / IP Logged

i have just aquired a 600 wattx1 channel bridged @ 4 ohm memphis amp and have a dvc @ 4ohm alpine type r which can be bridged @ 2ohm or 8 ohm. i can do the 8 ohm but can i do the 2ohm configuration into the 4ohm bridged amp? why or why not? 2 ohm load into a 4 ohm amp? - Last Post -- posted image.

2 ohm load into a 4 ohm amp? - Last Post -- posted image.

69boy

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black78ta

Member - Posts: 31

Joined: April 13, 2005

Location: United States

Posted: September 18, 2006 at 12:20 AM / IP Logged

If you have a mono (1-channel) amp, just check your manual and it should be stable at 2 ohms. If your amp is a 2-channel, odds are that it is not stable at 2 ohms if it is bridged. It could cause complications that will make the amp overheat and turn off. Otherwise, just hook up one voice coil to each channel and push it that way until you can get a mono amp that will suit your needs if you are not satisfied with how it sounds.

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bellsracer

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Joined: January 14, 2006

Location: United States

Posted: September 18, 2006 at 12:28 AM / IP Logged

We do not recommend hooking the sub up with both of its coils. Like black said, you can hook up just one coil, but do not expect the sub to hit hard. And do not keep it like that for too long. Get an amp that is stable at 2 or 8 ohms. If you can afford it, get one with enough power hit hard at 8 ohms (tend to be very pricey) but that will make it next to impossible to distort the speaker unless you send a clipping signal. 2ohms amp is fine too.

Good Luck!

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stevdart

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Posted: September 18, 2006 at 5:29 AM / IP Logged

8 ohms bridged. Your sub should see about 300 watts which should be plenty enough to bring it to full life. A solid enclosure on the plus side of the size range will further enhance the output.

You can't connect the sub at 2 ohms because that impedance load would be too low for the amplifier's limits. It specifies 4 ohm bridged as the lowest (not the only) impedance load allowed.

Build the box so that it performs well in the worst case scenario and, in return, it will reward you at all times.

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aventado69

Member - Posts: 2

Joined: September 17, 2006

Location: United States

Posted: September 19, 2006 at 1:46 AM / IP Logged

Thank you fellas for the feedback. i think i'll go with the 8ohm bridge and a bandpass box that is super thick and sturdy so it won't sound so echo'y for now. i think i'll change the woofer to suit the amp like a type s because i like the memphis amp and how it sounds, and i'm ok with the power. on a side note, what do you recommend to stop the hiss on my powered 12 band equalizer? should i ground the chassis to the car chassis, would this help?

69boy

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2 ohm load into a 4 ohm amp?

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