Maiking power at 4ohms

[Blown Camaro]

Been out of the car audio game for a long, long time. Mid 90's to be exact. Got back in a couple years ago and didn't really understand Class D amps or why people run subs at 1ohm or less now. Seems like a near dead short to me! LOL. We always bridged our amps and ran around a 4ohm load to one channel. Are there any NEW amps that make decent power at 4 ohms in Class D? Or do aI need a 2 channel AB and bridge it? I have some old school 8ohm Kicker subs I really want to use.

Would like to keep the sub amp

Thanks!

Click to read more...

 

[LosIsATool 5,000+ posts]

There are plenty of 2 channel class Ds. Zapco ST-2 is one to look at.

But 1ohm on a mono is perfectly fine. Even .5ohm with some amps.

 

[Boomin_tahoe 5,000+ posts]

Some people use Class D amps for subs.

The o/s Kickers...can't be anymore than what a few 100 watts for both?

Prob need a 200-300 watt amp.

 

[trumpet 5,000+ posts]

There are plenty of 2 channel class Ds. Zapco ST-2 is one to look at. But 1ohm on a mono is perfectly fine. Even .5ohm with some amps.

ST2, like the 5+ year old model?

 

[trumpet 5,000+ posts]

Been out of the car audio game for a long, long time. Mid 90's to be exact. Got back in a couple years ago and didn't really understand Class D amps or why people run subs at 1ohm or less now. Seems like a near dead short to me! LOL. We always bridged our amps and ran around a 4ohm load to one channel. Are there any NEW amps that make decent power at 4 ohms in Class D? Or do aI need a 2 channel AB and bridge it? I have some old school 8ohm Kicker subs I really want to use.
Would like to keep the sub amp

Thanks!

How much power are you looking for?

 

[Blown Camaro]

The subs are rated 400RMS each.

 

[Boomin_tahoe 5,000+ posts]

What size?

 

[Flipper245]

Kicker zx1200 should do 600watts or more at 4 ohms.

 

[trumpet 5,000+ posts]

The subs are rated 400RMS each.

I could get you Zapco power but $200 isn't enough. You're going to need a relatively big mono amp, a monster 2-channel amp, or a 4-channel amp to run bridged. The 4-ch and 2-ch route would get you a dash remote and Bluetooth capability, which can be defeated. The mono amp leaves you room to change subs and run at lower impedance for higher power.

 

[The_Quiet_One 10+ year member]

Look at JL audio or Fosgate's Constant Power amps...They can make ok power at higher impedances. If you don't mind buying used you should be able to find a decent deal. I picked up a Fosgate T1000-BDCP for 180 and it's rated at 700W @ 4 ohms. I've used it as my beater amp for at least 4 years now...If you're buying new....That gets a tad more difficult. Maybe look into Brazilian amps.

 

[LosIsATool 5,000+ posts]

ST2, like the 5+ year old model?

Idk how old they are. ST-2D - Zapco 2-Channel Class D Full Range Amplifier

 

[BOOMINGRANDPA 5,000+ posts]

since u new to the d class amp just look at the s/n ratio., if u want clean power get a a/b and bridge or find d class that has 90 s/n or better or get a class a/b mono amp but like they said u have to get a big one they all made to run 2 or 1 ohm.. I had orion hp dvc wire 8 ohm bridged off crossfire vr600.2 for 6-7 yrs until last week (sold it) worked great that amp has 720 watts or so at 14.4 4 ohm so had 350 rms at least to sub u could do exact same thing, if u running 2 8 ohm subs just find 2 channel a/b with like 400rms bridged if they 12's or bigger if they 10's u really don't need that much power to them they just comps..