JL 1000/1 VS. Alpine PDX 1.1000

[ent3rdadragon 10+ year member]

what do you mean by the regulated power supply will kill effeciencey? do you mean "kill" in a good way or bad way???
eddie

he means efficiency will **** azz

 

[kmu 10+ year member]

Being able to do 1,000 watts rms on 11 volts and @ 4ohms is what I call efficiency.

Show me another amp that can do that without being rated @ 2,000 rms...

 

[ent3rdadragon 10+ year member]

well from my experience with the 1000/1, it is very inefficient. That's why my cousin had to sell his jl. He was getting mad voltage drops where his sub would cut out. When he swapped in a sound magus 1500 rms amp, it did not cut out anymore.. It was a class D amp also. In my opinion it's pretty inefficient.

 

[CrossFired 10+ year member]

Hi there, Im currently runnning a JL audio 1000/1, its got all the power I want, but the only downside is that its very large and id doesnt fit right in my truck and I may benefit from a smaller footprint amp like the alpine.
Do you guys think its worth it to change from the JL to the Alpine?

Ive read reviews that state the alpine runs very hot and well my JL audio also runs hot, that it need alot of current which my JL does too.

What would the pros and cons be of making the change besides the footprint on the amp?

THX in advance

I've had time with both and I find the JL to be a better sounding amp, more control with a cleaner tighter bass.

If you just need volume smaller size and cooler running? the Alpine would work nice.

JL = SQ

Alpine = SPL

Both sound good and play loud.

 

[SirSyko 10+ year member]

Amplifiers have sound quality?

 

[pawn man 10+ year member]

the hotter the amp runs the less eff. it is. the dissapated heat is waisted power.

 

[BringDaBoom 10+ year member]

Hi there, Im currently runnning a JL audio 1000/1, its got all the power I want, but the only downside is that its very large and id doesnt fit right in my truck and I may benefit from a smaller footprint amp like the alpine.
Do you guys think its worth it to change from the JL to the Alpine?

Ive read reviews that state the alpine runs very hot and well my JL audio also runs hot, that it need alot of current which my JL does too.

What would the pros and cons be of making the change besides the footprint on the amp?

THX in advance

I don't know what you term" hot" but JL's slash amps are rated as one of the most thermally efficient in the market. I've owned them for 5+ years and never had more than warm to the touch after hours of playing.

Both are great amps. The main difference between the two if I'm not mistaken (besides the footprint) is the regulated power. No matter the volts or normal ohm load , the JL will put out 1000.

Not sure if the PDX is regulated. If it is, then it's just a matter of preference.

 

[pilyin 10+ year member]

Anyone have a birtsheet for an alpine PDX 150x2?

I have one on a 4.150. 176x4 is what it says. I'm at work though. It's at home.

 

[dipitydoo 10+ year member]

amps with regulated power supplies are inherently less efficient than non-regulated ones. as voltage drops, the regulated power supply increases current demand, which is required to maintain wattage. there are good and bad to each design, and what's better depends on your needs.

 

[kmu 10+ year member]

i just bought a new alpine pdx 4.100 so now Im looking for a alpine pdx 1.1000 to try them out...