JBL Px300.4 vs GTO75.4 II

[TxIceMan 10+ year member]

Oh sweet! Manual is out!

ftp://inform.kenwoodusa.com/manuals/DDX8019.pdf

 

[WhoSayWho? 5,000+ posts]

No, it's rated 104w x 4 @ 4ohm

oh thanks, so the rated power difference is less than 20 watts per channel.

 

[TxIceMan 10+ year member]

So would the crossover features on the 300.4 be redundant on my head unit or not?

 

[squeak9798 5,000+ posts]

That is a pretty horrible manual IMO...LOL

It apparently has a crossover network, but I can't tell what all of the features of that crossover network are other than it "highpass" the front and rear speakers.

Just from an initial guess, given the vagueness of the manual, is that the selectable slope on the amplifier wouldn't be redundant.

So, it really comes down to if you are willing to pay the extra money for the more advanced crossover features, slightly more power (which given the small difference would likely be inaudible), and slightly more "stout" build/quality of the PX300.4

I'm more than pleased with my GTO75.4II, for what it's worth. But if you think the PX300.4 is worth the price difference for your needs, by all means go for it.

 

[WhoSayWho? 5,000+ posts]

That is a pretty horrible manual IMO...LOL
It apparently has a crossover network, but I can't tell what all of the features of that crossover network are other than it "highpass" the front and rear speakers.

Just from an initial guess, given the vagueness of the manual, is that the selectable slope on the amplifier wouldn't be redundant.

So, it really comes down to if you are willing to pay the extra money for the more advanced crossover features, slightly more power (which given the small difference would likely be inaudible), and slightly more "stout" build/quality of the PX300.4

I'm more than pleased with my GTO75.4II, for what it's worth. But if you think the PX300.4 is worth the price difference for your needs, by all means go for it.

Well I don't know Squeak, before I had even installed my PX300.4 a guy who owns a car stereo store criticized my selection of an amp. He said it was "ok" but JBL amps "color" the music.

 

[squeak9798 5,000+ posts]

Well I don't know Squeak, before I had even installed my PX300.4 a guy who owns a car stereo store criticized my selection of an amp. He said it was "ok" but JBL amps "color" the music.

Next time just show him this list;

http://jbl.com/car/team_jbl.aspx?Language=ENG&Country=US&Region=USA

 

[WhoSayWho? 5,000+ posts]

Next time just show him this list;
http://jbl.com/car/team_jbl.aspx?Language=ENG&Country=US&Region=USA

Sweet. I think he is just the kind of guy that has to take a dig at anyone who is not running something he sells.

 

[WLDock 10+ year member]

Sweet. I think he is just the kind of guy that has to take a dig at anyone who is not running something he sells.

Isn't that the case with 99% of the car audio sales guys out there? I seriously doubt the guy did an A-B comparison under the right conditions to validate what he was saying.

Many times there are more important things to worry about than amps as many do a good job of it. Even the BEST amps have characteristics that may differ a bit from other high end amps....yet a good tuner with good tools can make the most out of any decent amp that you give them to work with. These guys that were linked here: http://jbl.com/car/team_jbl.aspx?Language=ENG&Country=US&Region=USA

...they have used all different brands of amps and all have done well over the years and have had better sounding cars than many cars that one might listen to at some of their local shops. I am friends with one of the guys on that list, Anthony Davis. I can tell you first hand that he is VERY picky and has a good ear. He has some pretty costly speakers in his car:

FOCAL Utopia Be Beryllium tweets,

FOCAL 3 W2 Be mid

SEAS EXCEL 8" midbass

JBL W15Gti subs

...that is about $4100MSRP worth of speakers(not that they pay that much). But the point is...these guys would not mess around with the JBL amps if they sucked...Sponsorship or not. He has about 3000 watts of JBL power!

http://img.photobucket.com/albums/v711/WLDock/Car%20Audio/DSC01204.jpg

I think we all need to move past the amp thing....I.M.O speakers sound WAAY different than amps. The GTO amps are good amps...go with them. However, if you have the money get the PX amps....They seem to have better internals and I like the fact that the mounting legs are Aluminum vs. plastic legs on the GTO amps.

 

[squeak9798 5,000+ posts]

and I like the fact that the mounting legs are Aluminum vs. plastic legs on the GTO amps.

That I would have to agree with aswell.

The one (and really, only) complaint I have with my GTO75.4II is that the mounting legs are a bit flimsy.

 

[jblpower 10+ year member]

I had them both in my car at one point. They were both good performers. I prefered the px300.4 I dont know why, but it seemed to have less noise at low volume, Also the power supply is built a little better plus better x-overs. But both are good amps. I have been meaning to try out one of those pg xenons. I tried a tru tech 4.65, but belive it or not I couldn't tell the diference in sound from my px300.4. the only diference was the jbl produced more power.

 

[TxIceMan 10+ year member]

At the site I'm thinking about buying one of these amps from...the price difference is only $40.

 

[squeak9798 5,000+ posts]

For $40 I would definitely go ahead and get the PX300.4

 

[toyotateknician 10+ year member]

Now is a good time to buy the Px300.4 if available in your state. I looked up Tweeter.com which has stores like Sound Advice here in Florida. They have a lot of clearance items which are open box, or display models. I purchased the Px300.4 for $108.00, a Bx500.1 for $158.00, and a pair of JBL C608Gti components for $98.00. Everything I bought was in mint condition, and you can even get a warranty for a little extra. //content.invisioncic.com/y282845/emoticons/greedy.gif.5a53e6246569d7ab79867170f3b06629.gif