JL Audio 300/4 amp
06-03-2002, 09:31 AM
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Re: JL Audio 300/4 amp (dc24me)
US Acoustics USX-4085 - I bought this one instead of the JL a few weeks back. Crutchfield has them on sale for $189.99.
There isn't much difference as far as I could tell besides the JL name (big deal lol).
There isn't much difference as far as I could tell besides the JL name (big deal lol).
06-04-2002, 09:45 AM
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Re: JL Audio 300/4 amp (SinkingJar)
There isn't much difference as far as I could tell besides the JL name (big deal lol).
06-04-2002, 09:53 AM
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Re: JL Audio 300/4 amp (TKBLAZER)
Yes it has the RIPS system...it means constant power at both any load between 1.5 and 4 ohms as well as between 11.5 and 15V
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06-04-2002, 12:53 PM
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Re: JL Audio 300/4 amp (4gvtec)
any heard of precision power -power class??????????? jl is the **** for d class performance! mids highs ppi all day long!!!!!
power is power is power. as long as 2 amps make the same amount of clean power, youll never be able to tell the difference between them. an amp doesnt have SQ, all it does is amplify the signal its given. anyway...
The 300/4 is a fine 75x4 amp, but a little more pricey compared to alot of other amps that make the same amount of power.
06-04-2002, 12:55 PM
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Re: JL Audio 300/4 amp (TKBLAZER)
There isn't much difference as far as I could tell besides the JL name (big deal lol).
well i think believe the JL is a digital amp with wat they call RIPs or something that puts out a consistant amount of power no matter wat ohm load.
well i think believe the JL is a digital amp with wat they call RIPs or something that puts out a consistant amount of power no matter wat ohm load.
06-04-2002, 06:58 PM
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Re: JL Audio 300/4 amp (RodeoSS)
um no....
power is power is power. as long as 2 amps make the same amount of clean power, youll never be able to tell the difference between them. an amp doesnt have SQ, all it does is amplify the signal its given. anyway...
The 300/4 is a fine 75x4 amp, but a little more pricey compared to alot of other amps that make the same amount of power.
power is power is power. as long as 2 amps make the same amount of clean power, youll never be able to tell the difference between them. an amp doesnt have SQ, all it does is amplify the signal its given. anyway...
The 300/4 is a fine 75x4 amp, but a little more pricey compared to alot of other amps that make the same amount of power.
06-04-2002, 08:12 PM
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Re: JL Audio 300/4 amp (rcurley55)
um no....
power is power is power. as long as 2 amps make the same amount of clean power, youll never be able to tell the difference between them. an amp doesnt have SQ, all it does is amplify the signal its given. anyway...
The 300/4 is a fine 75x4 amp, but a little more pricey compared to alot of other amps that make the same amount of power.
Have you been listening to Richard Clark again...if that were the case then put together a road gear system and win IASCA...there's more to it then just power.
power is power is power. as long as 2 amps make the same amount of clean power, youll never be able to tell the difference between them. an amp doesnt have SQ, all it does is amplify the signal its given. anyway...
The 300/4 is a fine 75x4 amp, but a little more pricey compared to alot of other amps that make the same amount of power.
Have you been listening to Richard Clark again...if that were the case then put together a road gear system and win IASCA...there's more to it then just power.
06-04-2002, 08:36 PM
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Re: JL Audio 300/4 amp (4gvtec)
ever heard of dampening factor?
the question is, have you ever heard of "dampening factor"...
06-04-2002, 08:49 PM
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Re: JL Audio 300/4 amp (rcurley55)
Richard Clark is a dumbass. It was funny seeing Eric Holdaway ripping him apart asking about supposive modifications to the GN his claimed to have done himself in Carsound.com
His a/b amplifer test is full of **** too. I heard you're supposed to listen to the two amps with pink noise or something.
[Modified by dc24me, 12:50 AM 6/5/2002]
His a/b amplifer test is full of **** too. I heard you're supposed to listen to the two amps with pink noise or something.
[Modified by dc24me, 12:50 AM 6/5/2002]
06-04-2002, 08:53 PM
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Re: JL Audio 300/4 amp (dc24me)
Richard Clark is a dumbass. It was funny seeing Eric Holdaway ripping him apart asking about supposive modifications to the GN his claimed to have done himself in Carsound.com
His a/b amplifer test is full of **** too. I heard you're supposed to listen to the two amps with pink noise or something.
[Modified by dc24me, 12:50 AM 6/5/2002]
His a/b amplifer test is full of **** too. I heard you're supposed to listen to the two amps with pink noise or something.
[Modified by dc24me, 12:50 AM 6/5/2002]
06-04-2002, 08:55 PM
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Re: JL Audio 300/4 amp (RodeoSS)
I've read his rules, and they are so stacked in his favor he can't lose.
check this out:
So take a look at a few of the rules, and tell me if that is in fact a real world test of what happens in a car. It's not. The above are all reasons we buy amplifiers and why we would like to use them...how many of us use the internal crossovers on an amp? Most of us probably...half? Until the advent of heads w/built in x-overs I would say most. The quality of that crossover important to you? It's design? Not it's features, or tweakability, but it's design. Turn on/off thump...humming, noise, etc..sound like cheaper amps.
We all know that amps are not supposed to "sound" like anything. But if all amps "sounded" the same, then why to highlevel brands exist? Simply for marketing sake...I don't think so. If this were the fact, companies would buy cheap *** over seas amps, pop them in pretty little heatsinks and slap a huge price tag on them.
He even equalizes the bias between channels...now if I want an amp, I want it to have perfectly matched channels. I'm willing to bet that a better built amp, with higher tolerance (read more expesive) components in it will do a better job out of the box.
It's not smoke and mirrors folks...there are fundamental differences between amps when they are used in an actual car that cause them to perform differently. I'm talking real world functioning, not a double blind a/b test in some room.
IMO...again, it's just mine, you get what you pay for. I'm sorry, but I don't buy into the challenge.
check this out:
2. Amplifiers will be powered from the same power supply at a nominal 14
volts DC. (any voltage is OK as long as it is the same for both amps)
volts DC. (any voltage is OK as long as it is the same for both amps)
5. That all amplifiers with signal processors have those circuits bypassed.
This includes bass boost circuits, filters, etc. If frequency tailoring
circuits cannot be completely bypassed an equalizer will be inserted in the
signal path of one (only one and the listener can decide which) of the amps
to compensate for the difference. Compensation will also be made for input
and output loading that affects frequency response. Since we are only
listening for differences in the sonic signature of circuit topology, the
addition of an EQ in one signal path only should make the test even easier
This includes bass boost circuits, filters, etc. If frequency tailoring
circuits cannot be completely bypassed an equalizer will be inserted in the
signal path of one (only one and the listener can decide which) of the amps
to compensate for the difference. Compensation will also be made for input
and output loading that affects frequency response. Since we are only
listening for differences in the sonic signature of circuit topology, the
addition of an EQ in one signal path only should make the test even easier
9. That neither amp has excessive physical noise or other indicators that
can be observed by the listener.
can be observed by the listener.
11. The amplifier power up and/or power down sequence will not be acceptable
for comparison. (The turn on/off noises of some amplifiers would give it
away.)
for comparison. (The turn on/off noises of some amplifiers would give it
away.)
We all know that amps are not supposed to "sound" like anything. But if all amps "sounded" the same, then why to highlevel brands exist? Simply for marketing sake...I don't think so. If this were the fact, companies would buy cheap *** over seas amps, pop them in pretty little heatsinks and slap a huge price tag on them.
He even equalizes the bias between channels...now if I want an amp, I want it to have perfectly matched channels. I'm willing to bet that a better built amp, with higher tolerance (read more expesive) components in it will do a better job out of the box.
It's not smoke and mirrors folks...there are fundamental differences between amps when they are used in an actual car that cause them to perform differently. I'm talking real world functioning, not a double blind a/b test in some room.
IMO...again, it's just mine, you get what you pay for. I'm sorry, but I don't buy into the challenge.
06-04-2002, 09:04 PM
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Re: JL Audio 300/4 amp (RodeoSS)
that challenge is fair.
the crossovers must be the same settings because that can be a dead give away. the 18db/octave isnt higher quality than the 12db, just different. also, most amps bass boost does it at different frequencies, which could be a give away. turn on noise, again that is a give away, and has nothing to do with the SQ of an amp.
so your tellin me an amp has "SQ", even tho u couldnt tell it from another amp on the same settings/ power levels? are you on crack?? you just have no foundation for anything your saying. many ppl like u believe that you get what u pay for, and that since u dropped more $ on an amp it will sound better than a cheaper amp that makes the same power. its all in ur head...
the crossovers must be the same settings because that can be a dead give away. the 18db/octave isnt higher quality than the 12db, just different. also, most amps bass boost does it at different frequencies, which could be a give away. turn on noise, again that is a give away, and has nothing to do with the SQ of an amp.
so your tellin me an amp has "SQ", even tho u couldnt tell it from another amp on the same settings/ power levels? are you on crack?? you just have no foundation for anything your saying. many ppl like u believe that you get what u pay for, and that since u dropped more $ on an amp it will sound better than a cheaper amp that makes the same power. its all in ur head...
06-04-2002, 09:14 PM
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Re: JL Audio 300/4 amp (RodeoSS)
that challenge is fair.
the crossovers must be the same settings because that can be a dead give away. the 18db/octave isnt higher quality than the 12db, just different. also, most amps bass boost does it at different frequencies, which could be a give away. turn on noise, again that is a give away, and has nothing to do with the SQ of an amp.
so your tellin me an amp has "SQ", even tho u couldnt tell it from another amp on the same settings/ power levels? are you on crack?? you just have no foundation for anything your saying. many ppl like u believe that you get what u pay for, and that since u dropped more $ on an amp it will sound better than a cheaper amp that makes the same power. its all in ur head...
the crossovers must be the same settings because that can be a dead give away. the 18db/octave isnt higher quality than the 12db, just different. also, most amps bass boost does it at different frequencies, which could be a give away. turn on noise, again that is a give away, and has nothing to do with the SQ of an amp.
so your tellin me an amp has "SQ", even tho u couldnt tell it from another amp on the same settings/ power levels? are you on crack?? you just have no foundation for anything your saying. many ppl like u believe that you get what u pay for, and that since u dropped more $ on an amp it will sound better than a cheaper amp that makes the same power. its all in ur head...
The problem is that most people don't understand what RC is trying to do with his test...he wants to prove that a watt is a watt. Simple. I can agree with that - how about you? I just want to make sure that we are discussing the same thing here.
The problem enters as you insert other pieces into the signal path.
How do I have no foundation....Richard Clark takes a dynamic environment (a car) and makes it very static. For scientific testing purposes - this is fine, but this is the real world. Who can sit there and perfectly match channels....they are what they are out of the box for most people who purchase amps.
He will reequalize outputs to compensate for things placed in the signal path that can't be removed....that is a colorization that he removes from an amplifier!!! You couldn't sit down and do the same thing if you just unbolted one amp, and popped in another. Now we both said that colorization is what we don't want in our amplifiers.
For what he is trying to prove, he's right. Saying that all amps sound exactly the same - sorry, I don't buy it, and I don't buy his challenge.
Car audio is ruled by the law of diminishing returns.
06-04-2002, 09:20 PM
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Re: JL Audio 300/4 amp (RodeoSS)
Damping
The mechanical resistance that is applied to a speaker cone to keep it from resonating in the absence of an input signal. It is also the factor that is applied as a control voltage by the amplifier for the same purpose. These measures help reduce Harmonic Distortion. This also controls bass accuracy. Usually the higher the number, the better, although it is debatable if anything over 50 is audible. Damping factor is calculated by dividing the load (speaker) impedance by the output impedance of the amplifier. Thus, a given amplifier’s damping factor will decrease as the speaker’s impedance decreases. This means an amp optimized at 4 ohms will provide tighter bass than at 2 ohms.
so your telling me on say a jl 10w3 in a sealed encloser.with a jl 250.1 amp and a roadgear 250 watt amp,in sound quality between the two you could not hear the diff? you need help then........................
dont want to argue,but my best friends has had a shop for 6 years.he carries mtx,eclipse,mb quart,jl audio and clarion..
[Modified by 4gvtec, 6:23 AM 6/5/2002]
The mechanical resistance that is applied to a speaker cone to keep it from resonating in the absence of an input signal. It is also the factor that is applied as a control voltage by the amplifier for the same purpose. These measures help reduce Harmonic Distortion. This also controls bass accuracy. Usually the higher the number, the better, although it is debatable if anything over 50 is audible. Damping factor is calculated by dividing the load (speaker) impedance by the output impedance of the amplifier. Thus, a given amplifier’s damping factor will decrease as the speaker’s impedance decreases. This means an amp optimized at 4 ohms will provide tighter bass than at 2 ohms.
so your telling me on say a jl 10w3 in a sealed encloser.with a jl 250.1 amp and a roadgear 250 watt amp,in sound quality between the two you could not hear the diff? you need help then........................
dont want to argue,but my best friends has had a shop for 6 years.he carries mtx,eclipse,mb quart,jl audio and clarion..
[Modified by 4gvtec, 6:23 AM 6/5/2002]
06-04-2002, 09:21 PM
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Re: JL Audio 300/4 amp (rcurley55)
im unsure what ur saying. yes if use the bass bost on an amp that does it @ 40hz, it would make it sound different than another amp of the same power, that boost the frequency at 50Hz. but that is 2 different signals, not the same ones. what im saying:
2 amps that are amplifying the same signal (assuming same power output) will sound so closely to the same you wouldnt be able to tell the difference.
2 amps that are amplifying the same signal (assuming same power output) will sound so closely to the same you wouldnt be able to tell the difference.
06-04-2002, 09:23 PM
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Re: JL Audio 300/4 amp (4gvtec)
so your telling me on say a jl 10w3 in a sealed encloser.with a jl 250.1 amp and a roadgear 250 watt amp,in sound quality between the two you could not hear the diff? you need help then........................
[Modified by RodeoSS, 6:23 AM 6/5/2002]
06-04-2002, 09:25 PM
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Re: JL Audio 300/4 amp (4gvtec)
dont want to argue,but my best friends has had a shop for 6 years.he carries mtx,eclipse,mb quart,jl audio and clarion..
im not arguing, im straight up telling you that ur wrong. im not sayin road gear amps are good quality, they cant meet their power ratings, and im sure wont last very long.