900w@1ohm or 650w@2ohm. Can you hear diff?

[onnoff7 10+ year member]

i dont know whether to run my idmax at 900w@1oh or 650@2ohm.

was told that a nomal person cannot tell the difference in sounds. im doing this so theres not as much strain on my amp.

what to do????

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[rdzm50 10+ year member]

yes you can.... it probably won't be that big of a difference depending on the set up

 

[SplChoice- 10+ year member]

dont listen to him ^^

 

[InsaneKreationz]

I can hear a different in about 50 watts. Honestly. maybe less.

 

[onnoff7 10+ year member]

who am i gona listen to then?? is there much of a difference so that a normal person can tell?

 

[Raven 10+ year member]

If you're going from 25 to 50 watts there's an audible difference (100% = 3dB theoretical gain). Going from 850 to 900, you'd never tell in a blind comparison (6% = 0.153dB gain).

I'd say try both. In installs I've done sometimes the sub performs better at the higher resistance, sometimes it performs better at lower resistance. Depends on the sub, amp, and install.

 

[helotaxi 5,000+ posts]

What sub do you have that can be run at 1 or 2 ohms is what I want to know.

 

[perfecxionX 10+ year member]

i went from 4-500 to 8-900, and i cant say that i noticed any difference at all

 

[donpisto 5,000+ posts]

I had 500w on my DD 9515 and then put approximately 750w to it. I did notice a difference but I didnt realize how big of a difference it was. The term lab proved it to be 4.4dB louder. This was a legal scored with car off and everything sealed. However, the 500w amp was an RF Punch 500a2 and the other was a Treo SSX 1500.1. The RF had the gains cranked near all the way up while the Treo was barely 1/4 up. I would say with what you're dealing with you might be able to tell a difference, my guess is probably yes.

 

[donpisto 5,000+ posts]

What sub do you have that can be run at 1 or 2 ohms is what I want to know.

I'm assuming its gonna get a recone or somethin or he has the option of choosing voice coil config and will be running it on an amp he already has...I wish there was such a sub that could do 1 or 2 ohms...that would make life much easier.

 

[onnoff7 10+ year member]

The company where i bought my sub sent me wrong one. now just deciding to keep it or get the correct sub.