Memphis 1000.1 or a JL 1000.1 which is a better amp i was going with the JL

any reason that you are choosing either one of them? i've done installs with both and i would say the JL has a VERY SLIGHT edge in performance, but the memphis is a nice small amp and very good overall, if it's the same model that i speak of. Still, there are many competitive 1kw monoblocks on the market right now in that price range or for less

EDIT, the JL does have a regulated power supply, so it will provide rated power to a wide range of VC configurations, the memphis is rated at 1 ohm i believe. So if you need to power a 1 ohm final load get the memphis because i have heard that the JL doesn't like 1 ohm. If it is 1.5 or above, go for the JL

Edited November 3, 200816 yr by manbeer

I like the JL better based on just amp for amp and it's flexibility, but am curious why only those two as well.

EDIT, the JL does have a regulated power supply, so it will provide rated power to a wide range of VC configurations

That is actually incorrect. Regulated power supplies routinely double rated power for every halve in impedence. What regulated power supplies do is provide a constant output no matter what the input voltage is. So that JL 1000/1 is going to put out 1000 watts no matter if your car's voltage is at 14, 12, 10, etc. It will just pull more current when the voltage is low to keep the output power the same. An unregulated power supply, on the other hand, changes output power in relation to input voltage. So that memphis may put out 900 watts at 10 volts, 950 at 12 volts, and 1000 at 14 volts.

the jl is not stable below 1.5,

but is indeed 1k from 1.5 ohms to 8 ohms i think it is...

ive seen that memphis 1000.1, very good lil amp and i think it puts out a lil more than 1000 because it blew 2 p2 12's

EDIT, the JL does have a regulated power supply, so it will provide rated power to a wide range of VC configurations

That is actually incorrect. Regulated power supplies routinely double rated power for every halve in impedence. What regulated power supplies do is provide a constant output no matter what the input voltage is. So that JL 1000/1 is going to put out 1000 watts no matter if your car's voltage is at 14, 12, 10, etc. It will just pull more current when the voltage is low to keep the output power the same. An unregulated power supply, on the other hand, changes output power in relation to input voltage. So that memphis may put out 900 watts at 10 volts, 950 at 12 volts, and 1000 at 14 volts.

I stand corrected then

EDIT, the JL does have a regulated power supply, so it will provide rated power to a wide range of VC configurations

That is actually incorrect. Regulated power supplies routinely double rated power for every halve in impedence. What regulated power supplies do is provide a constant output no matter what the input voltage is. So that JL 1000/1 is going to put out 1000 watts no matter if your car's voltage is at 14, 12, 10, etc. It will just pull more current when the voltage is low to keep the output power the same. An unregulated power supply, on the other hand, changes output power in relation to input voltage. So that memphis may put out 900 watts at 10 volts, 950 at 12 volts, and 1000 at 14 volts.

I stand corrected then

To get even more specific, it does 1000 watts between 1.5 and 4 ohms, and between 11 and 14.4 volts. It's called the R.I.P.S. system, and that stands for REGULATED Intelligent Power Supply. Technically you were both wrong

Well, don't have to believe me. But maybe you'll believe http://www.bcae1.com/. Click on item 101 on the right side and scroll down to the paragraph starting "If, in a regulated power supply....." JL modified from the traditional designs so that the 1000.1 would put out that power at all ohm loads. It's not the most typical thing. That way they wouldn't have to design a different amp to handle the impedences all their subs can run at. They can say "A W7 with single 3 ohm coil? JL 1000/1! Two W6's with a 4 ohm load? JL 1000/1! Two W3s with a 2 ohm load? JL 1000/1!"

Well, don't have to believe me. But maybe you'll believe http://www.bcae1.com/. Click on item 101 on the right side and scroll down to the paragraph starting "If, in a regulated power supply....." JL modified from the traditional designs so that the 1000.1 would put out that power at all ohm loads. It's not the most typical thing. That way they wouldn't have to design a different amp to handle the impedences all their subs can run at. They can say "A W7 with single 3 ohm coil? JL 1000/1! Two W6's with a 4 ohm load? JL 1000/1! Two W3s with a 2 ohm load? JL 1000/1!"

Well I'm just getting technical on you. LOL

I put those two up b/c I know someone selling a Memphis and someone selling a JL wondered which one would be better. Both for the same price.

For the same price, the JL is a no brainer IMO. Better resale for later, capability to drive different loads if you change your setup. They shouldn't be the same price, the JL should be more so either the JL is underpriced or the Memphis overpriced.

And just for information sakes. I swapped out a JL 1000/1 for a Sundown 1000, because my subs could be wired to 1 ohm, and I figured I'd save the JL for subs that required 2 ohms, as I didn't have any amps that could do 1000 @ 2 ohms. Well, the Sundown was audibly louder in a direct swapout with the JL 1000/1. Dunno why, but it was plain, and a shocker to my friend, who swears by JL.

So if you can run your subs at 1 ohm, I'd suggest a Sundown if it's cheaper than what you're being offered for the 2 above.

And just for information sakes. I swapped out a JL 1000/1 for a Sundown 1000, because my subs could be wired to 1 ohm, and I figured I'd save the JL for subs that required 2 ohms, as I didn't have any amps that could do 1000 @ 2 ohms. Well, the Sundown was audibly louder in a direct swapout with the JL 1000/1. Dunno why, but it was plain, and a shocker to my friend, who swears by JL.

So if you can run your subs at 1 ohm, I'd suggest a Sundown if it's cheaper than what you're being offered for the 2 above.

Not that I doubt the Sundown puts out more power, but I would like to understand how you set the gains in both scenario's.

:)

And just for information sakes. I swapped out a JL 1000/1 for a Sundown 1000, because my subs could be wired to 1 ohm, and I figured I'd save the JL for subs that required 2 ohms, as I didn't have any amps that could do 1000 @ 2 ohms. Well, the Sundown was audibly louder in a direct swapout with the JL 1000/1. Dunno why, but it was plain, and a shocker to my friend, who swears by JL.

So if you can run your subs at 1 ohm, I'd suggest a Sundown if it's cheaper than what you're being offered for the 2 above.

Not that I doubt the Sundown puts out more power, but I would like to understand how you set the gains in both scenario's.

I'm guessing the input level switch had alot to do with it hehe, we'll see

It was about the same on both, around 90%. No bass boost on the Sundown. I've heard you cannot hear an audible difference between 200-400 watts, but we both noticed the audible increase by switching, it wasn't dramatic, just noticable. I'm hoping I wasn't missing a setting on the JL, cause I still have one but haven't had a need for more than 1 ohm so far yet.

It was about the same on both, around 90%. No bass boost on the Sundown. I've heard you cannot hear an audible difference between 200-400 watts, but we both noticed the audible increase by switching, it wasn't dramatic, just noticable. I'm hoping I wasn't missing a setting on the JL, cause I still have one but haven't had a need for more than 1 ohm so far yet.

"about the same" lol