need sub amp suggestions

Then why not type something to the effect of,

" I have to disagree with 1st, as an installer of 10 years I have found the JBL to be an excellent product being both reliable and powerfull. It may not be the best or most expensive but it will fit most peoples needs."

With something like the above i wouldn't even disagree.

By the way get your expeirence in your signature so everyone else can know your experience background.
 
maxxbling said:

better is a relative term. The bottom line is that everyone's needs are different. Some people view "better" as the most performance for the least amount of money.

You mean like this^?
 
maxxbling said:


You mean like this^?

Seems like you left alot form that post out of that quote.

Are saying you'd like to go back and change it for you?
 
Wow, I didn't think I would stir it up that much by suggesting JBL amps. I admit that I do not have the installation experience that others have, I just go by the reviews. JL and JBL are both good products. When I was searching for amps for my system, I read many reviews and forums on car stereo and the JBLs were highly recommended. I don't recall seeing any bad reviews on the amps. My question is, if you are not building a competition sound system, is it worth it to spend the extra on the JLs? Hell no is what I say.
 
Let me get into this discussion. I have an XTANT 3001A amp very similar to the JL amps as they produce same amount of power over a wide voltage range. I can Say for a FACT that my amp is putting out more power then the JBL600.1 CAUSE I had the amp and I can tell. Im powering a 12 inch kicker Solobaric L7. With the Xtant Amp it sounds louder and clearer with the JBL it is not as loud and has more distortion as it draws power and the power it produces drops.

So the JL IS indeed a Better amp. But then their is the factor of price. The JL IS MUCH MUCH more then the JBL.

But I can vouch on this discussion that the JL is better.
:)
 
So now pimprotege69 is saying that an Xtant 300@2ohm amp puts out more power than a JBL 600.1 which I have read puts out somewhere in the neighborhood 725W+@2ohm. Sorry, but don't want to piss anyone off, but that is :bs:

I am currently scouring the internet for tests or reviews that can show actual output for said amps. If anyone has some info to lend any truth to this power talk, please feel free to post it.
 
Well When I was powering I doubt I had 14.4 volts going into the amp thus bringing it down as it is not regulated. I would say the 600.1 was putting out between 350-450 watts at 12.6 volts or around there. The xtant all day will put out 300 pure watts at any voltage.

This must be settled some how. :D A showdown Perhaps? :cool:
 
A showdown will not prove much. What we really need is a test bench with a high current power supply and be able to test the actual outputs at different voltages of said amps. There is a magazine, Performance Auto and Sound, pasmag.com (can't get on their site right now) that test all of the amps they review on a test bench to get actual numbers. So we need actual test data to see how much better these amps are from the JBLs or just how bad the JBLs are. Anybody setup to do this test?
 
Even that is kind of a fke test though. Its in car where it matters. Many cars with large amps will drop below 12 volts. I also believe that different amps will respond differently from voltage fluctuations which can't be easily reproduced with power supplies.

Also a power supply that can handle 100 amps isn't cheap to come by nor is wattage testing equipment.
 
True on the power "in car" issue. But the issue here is whether or not the JBLs are comparable to JL amps at normal conditions. After all, it is not a competion car. Seeing as how most cars will run at about 12.5V when operating. the power output stats should be tested at that. If the Vehicle charging system cannot keep a constant 12.5V then it is a problem with the charging system and not the amp.

Now, I have yet to find info on the JBL 600.1 or the 1200.1 and what they actually put out, but for reference I did find a test on another JBL amp, the p180.2. Article is HERE

Output Power (resistive) minimum output (20 Hz to 20 kHz @ 1% THD+N all channels driven into 4 ohms):
120.6 w x 2 @ 14 volts
100.2 w x 2 @ 12.8 volts
65.7 w x 2 @ 10.5 volts
Output Power (resistive) minimum output (20 Hz to 20 kHz @ 1% THD+N all channels driven into 2 ohms):
191.6 watts x 2 @ 14 volts;
159.1 watts x 2 @ 10.5 volts;
102.3 watts x 2 @ 10.5 volts
Output Power (4 ohm IHF Reactive Load @ 1% THD+N @ 60 Hz bridged):
428 watts
Crosstalk @ rated output, 20 Hz to 20 kHz: 48.3 dB
Damping Factor @ 100 Hz: 174
Voltage for Rated Output: 252 mV to 3.9 volts
Idle Current Draw: .6 amps
Current Draw @ 1/3 Maximum Power: 28 amps
Efficiency @ 1/3 Maximum Power: 35%


Couple of things stand out to me. JBL rated this amp at 90x2 and at 12.8V it put out over 100x2 (111% or rated power). Which stands to reason that they are underrated. Now, using this logic on the 1200.1, probably an even more efficient amp, at 111% equals 1332@12.8V, for the 600.1 it might be more like 667W@12.8, but I have heard it was tested at closer to 725W (not sure of the parameter of the tests). Now, if in fact the JBL puts out that kind of wattage at 12.8V and the JL audio only puts out 605W@12.8V (TEST HERE), it stands to reason that for the money, the JBL is very comparable to the JL Audio amps.

Let's hear it!!! :rolleyes:
 
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Good finds!

THe damping factor is definitly a difference, JL's is 500 at 4 ohms but that is a sub amp and the tested JBL is not. Also don't forget the JL tested to 733 watts reactive which is what counts.

THe effiency is what seams weird.
It states 35% at 1/3 maximum power. DOes this mena that it will tend to be around 35% effiecent through out its range?

If so and if we are utilizing these numbers to be similar for the 1200.1 then the 1200 must draw 3600 watts to create the 1200 watts rms. MEaning it will need to draw 250 amps to deliver its rated power. To come near that this thing better have a direct 1/0 power input. Since it only has a 4 guage it stands to reason the 1200.1 is much more effiecent or the numbers are exagerated. Concidering a 250 amp draw would set 4 guage on fire.

Lets all keep looking to find some hard evidence on these exact amps.
 
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Keep in Mind that HUGE drop that occurs when you get below 12 volts. Its barely putting any power out. Cars do in fact get down to around 10-11 when pushing it hard. In this range the JL's will be crushing the JBL's ALL day.

True the JBL may be under-rated at 14.4 but it quickly drops. If we all had system's that stayed at a constant 14 volts things would be different but the acually output JL's will produce over a given range suceeds that of the JBL and for that I think it's a better amp.
 
The thing that impressed me with the JL was that it did 733 watts RMS thats a 50% underating at 500.

The other thing was that it wasn't efficient compared to most other mono amps.

The comparision between that JBL and the JL monos isn't realy fair to JBL since it is a 2 channel designed for full range use. We really need to see how the JBL 600.1 stacks up. I'm hoping the JBL mono amps have a better damping factor then the 2 channel used here.

For some good reading check out the review on the Alipine head unit and the JL 300/4 amp. Both had some very interesting things to say.
 
So what is a better amp, the JBL 1200.1 or the JL 1000/1?

I would most definetly have to say that the JL outshines the JBL in overall power and technology.
 
Alhtouhg I have no doubt the JL is, I would still like to see both amps test results.
 
Let's get one thing clear here. I am not saying that the JL is not a better amp, I am only saying that for the money (for the price of 1 JL 1000/1, you can get 3 JBL 1200.1) that the differences are negligable for the average install. If I was doing competitions, I would probably get something other than JBLs.

Now, I am still searching for some specs and have emailed JBL for more info.
 
JBL 1200.1= $549 retail
JL 1000/1 = $999 retail

How do you get 3 JBLs for the price of one JL again?

Did I mention that anyone working for a JL dealer gets the JL 1000/1 for $300 :D
 
well, I searched for some internet prices and I can get a 1200.1 for like 270 and the 1000.1 for like 900, so that is how I got 3 to 1. And if I worked at a Tweeter and got that kind of discount I would push the hell out of them too. Seriously, if I had know you could get them for that price, then I would have sent you 300 and we wouldn't have been having this discussion.
 
I can't get it for you, its part of JLs accomidations program for empluyees of dealers. JL rules in that everything is 70% off.

JL very strictly regulates the sale of there products which is why you can't find a low cost on the JL amp. not to mention the one you found on the internet will have none of JLs warrenty. They in no way allow internet sales.

Althouhg If I decide to chenge the system again or if I ditch the protege I'll let you know first to get first dibs on the JL 1000/1.
 
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