JL Audio?

[TxFrog1999]

I went by a local audio shop to just see whats new in car audio over the past two years, and I came across a set od digital amps from JL Audio. Do these amps really deliver a better signal and cleaner sound than the analog amps? Also does anyone make a 6" sub to replace the ones in the doors of the Mach systems?

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http://www.cadenzadesign.com/images/64sig.jpg

Performance Red 2000 GT Vert (mine :D)
Atlantic Blue 2000 V6 (wife's)

[jbullerjr]

What was the model of the amp? Was it one of the mono amps for subs (ie 250.1, 500.1 or 1000.1)?
And yes, there are many different 6-6.5 inch subs made that you can put in your car.

James

[TxFrog1999]

Originally posted by 89lx5.0:
What was the model of the amp? Was it one of the mono amps for subs (ie 250.1, 500.1 or 1000.1)?
And yes, there are many different 6-6.5 inch subs made that you can put in your car.

James


Thanks for the response James, I think the model was the 500 model. I don't know much about these new amps, but I'm not interested in being loud unless its musical, and the guy at the store said JL amps and subs are the way to go.

BTW James what shop do you work for in Arlington, I have some time this week and I'd like to stop by and check it out.



[This message has been edited by TxFrog1999 (edited 06-28-2001).]

[jbullerjr]

OK, here is the deal on D class amps.
Most amps are class AB, the signal is very clean but they are not very effecient, usually around 50-60% the rest goes up in heat.
Class D amps are very effecient usually around 70-75%, but they are not as clean as AB amps.
The difference in signal quality is very small though: AB .0005% D .005%
Class D JL amps also only are designed to work only from 20-500 hz, which is fine for subs.
JL Audio makes very good product and even though I don't carry the product, I got one of the amps from a jl dealer and put it in a customers car, pretty impressive.
I work at Mobile Electronics in N. Arlington, 2274 N. Collins 817-265-1298 I will be here on Sat. from 9-5
James

[This message has been edited by 89lx5.0 (edited 06-28-2001).]

[EW]

Put a 500/1 on 4-12W08's and a 300/4 on two pair of MB Quart speakers. That 500/1 FN BOOMS!

[EW]

Not "digital", Class D.

[thuma]

I just got a brand new 12w6v2 and a jl 1400d amp. I got everything hooked up and worked fine for a while. then the amp started to send it'self into protection as soon as the speaker starts to do some flexing. so i sent it out to get it fixed. they sent it back and i got it all hooked up again and still does the same thing. is there somthing that i may have done or am doing wrong that's causing this??? or is there somthing i can try, to fix it.

[Zarathustra]

I just got a brand new 12w6v2 and a jl 1400d amp. I got everything hooked up and worked fine for a while. then the amp started to send it'self into protection as soon as the speaker starts to do some flexing. so i sent it out to get it fixed. they sent it back and i got it all hooked up again and still does the same thing. is there somthing that i may have done or am doing wrong that's causing this??? or is there somthing i can try, to fix it.


x2

[ThreeFingerPete]

x2


Bad grounding, short in the RCA, temperature problem, low resistance in one of or both of the coils, etc. What are the gains set at, what type of input are you using?

[EW]

I just got a brand new 12w6v2 and a jl 1400d amp. I got everything hooked up and worked fine for a while. then the amp started to send it'self into protection as soon as the speaker starts to do some flexing. so i sent it out to get it fixed. they sent it back and i got it all hooked up again and still does the same thing. is there somthing that i may have done or am doing wrong that's causing this??? or is there somthing i can try, to fix it.
Where did you buy it? Take it back to them and let them check out your install.

[thuma]

i instal my stuff myself. but i did replace the ground on the amp and it seemed like it fixed it. so i got everything back together cranked it up a bit and then it blew the fuse next to the batterie not the amp's actual fuse on the power block. so i put a new fuse in and fixed the problem. but 10 mins later the subs cut out and now both amps are doing the same thing. so i replaced both rounds and turned it up a little bit and it did it again. so i don't know what to do there. i have 8 gague wire to the speakers (power and ground) and then 4 gague off the blocks. so is it possible that the 4 gague wire from the ground block went bad or somthing?? would uping the ground size for the amps help???? oh and the gain is set about 2/3 with rca wire connection.

[EW]

If you buy the amp from an authorized dealer but install it yourself, you have a 90 day warranty. If you buy it from an authorized dealer and have them install it, you would have a 2 year warranty. Online = no warranty.

[ram57ta]

Did anybody notice that the original thread is like 5 years old?

[thuma]

i'm not worried about the warranty. i just was wounderin if i possibly have done somthing in the wiring to cause this or what??

[black02mustang]

Thats why you don't use jl. My friend had a $5000 system put in by car toys i can't even count the times his amps of subs screwed up even blew a few of his jl subs with the monster 500 jl amp.

[aceman85turbo]

Thats why you don't use jl. My friend had a $5000 system put in by car toys i can't even count the times his amps of subs screwed up even blew a few of his jl subs with the monster 500 jl amp.

if a $5000 system included a 500/1, your freind is a fucking moron.

[black02mustang]

if a $5000 system included a 500/1, your freind is a fucking moron.

Well i will partly agree there (his parents paid for it). But He got a new cd deck, full dynamat (floor, doors, etc), door speakers, speakers in the dash, 4 channel jl amp powering those, jl 500 powering 2 jl 12's in a custom box to go under his back seat, amp kit, carpet, and speaker wire etc. so with car toys' ridiculous mark up, plus expensive as hell labor for the dynamat, box, etc. $5000 comes pretty easy. Waste of money if you ask me in a truck that was worth about $6k - $8k. Sounded decent though.

[ThreeFingerPete]

if a $5000 system included a 500/1, your freind is a fucking moron.

I disagree.

[DFWminis]

How long is your ground?? and where do you have it grounded to? is it a clean ground on bare metal.....

[EW]

Thats why you don't use jl. My friend had a $5000 system put in by car toys i can't even count the times his amps of subs screwed up even blew a few of his jl subs with the monster 500 jl amp.
:rolleyes:
I find it interesting that some of my customers never tear up equipment, and others destroy the same equipment on a daily basis.

[Tiny Tim]

I disagree.

x2

[black02mustang]

:rolleyes:
I find it interesting that some of my customers never tear up equipment, and others destroy the same equipment on a daily basis.

I agree, but I don't know anything compared to most of you guys and I've installed all of my stereos and have yet to blow a sub up. I couldn't get a jbl 1200.1 to even distort my 4 cheapo rockford he's(200 watts rms/piece) wired down to 1 ohms. I just wonder how does one blow up several pairs of subs, after a "professional" installation from say...car toys?

[ThreeFingerPete]

I agree, but I don't know anything compared to most of you guys and I've installed all of my stereos and have yet to blow a sub up. I couldn't get a jbl 1200.1 to even distort my 4 cheapo rockford he's(200 watts rms/piece) wired down to 1 ohms. I just wonder how does one blow up several pairs of subs, after a "professional" installation from say...car toys?

well, *I* have seen alot of professionally installed systems tampered with, sometimes before they even leave the parking lot. There is a reason that they offer extended warranties, and if you've seen some of the equipment that I've seen, you'd be amazed that people's vehicles run at all, the way they treat their property.

[ThreeFingerPete]

Also, there are always people who want more than they paid for, so they get back there, and figure that if the amp has dials on it, and they're at the 1/2 position, they'd probably work better all the way clockwise.

[black02mustang]

Also, there are always people who want more than they paid for, so they get back there, and figure that if the amp has dials on it, and they're at the 1/2 position, they'd probably work better all the way clockwise.

Well can't agree with you more on that. Nothing like someone telling you they turned the "level" or "gain" up on their amplifier to make it louder.

[ThreeFingerPete]

Well can't agree with you more on that. Nothing like someone telling you they turned the "level" or "gain" up on their amplifier to make it louder.

if I only had a nickel for everytime I heard that.


People think it's a fucking volume knob.

[thuma]

I need a four channel that's very powerfull. i'm looking for somthing aroud (250-400)X4 anyone know where i can find somthing like that??

[ThreeFingerPete]

Mind if I ask what you're trying to use it for?

[LMPChris]

I have a 500/5 in my viper it works great....

Chris

http://i14.photobucket.com/albums/a326/dentista/IMG_0519.jpg

[needsastang80]

jl amps are good for subs, i dont like the four channels and the rips power supply
the power supply feed both front and rear so if the ohm load isnt even front to rear you dont get full power output. most install this doent matter but for some one who is a little bit crazy when it come to building a stereo (ex. me) it dosnt work well. beside a 300/4 you can cook a egg on under normal listen which isnt good to me either but just a opion dont wanna get flammed just my expreince with these amps

[LMPChris]

jl amps are good for subs, i dont like the four channels and the rips power supply
the power supply feed both front and rear so if the ohm load isnt even front to rear you dont get full power output. most install this doent matter but for some one who is a little bit crazy when it come to building a stereo (ex. me) it dosnt work well. beside a 300/4 you can cook a egg on under normal listen which isnt good to me either but just a opion dont wanna get flammed just my expreince with these amps


No flames... I don't know s**t about stereos that is why I take it to the shop to have this stuff installed. Ask me about a King Air or 421B and things like that I can help you out.

The only thing I was saying is the JL seems to work in my car.

Chris

[EW]

jl amps are good for subs, i dont like the four channels and the rips power supply
the power supply feed both front and rear so if the ohm load isnt even front to rear you dont get full power output. most install this doent matter but for some one who is a little bit crazy when it come to building a stereo (ex. me) it dosnt work well. beside a 300/4 you can cook a egg on under normal listen which isnt good to me either but just a opion dont wanna get flammed just my expreince with these amps
Maybe you should've gotten 450/4 or two 300/2. The Alpine MRV-F545 would also be a great choice! The 300/4's do run warm but we never have anyone bring them back complaining that they shut off.