Featured Facts or Fiction

[ThxOne Premium Member]

You are showing two ampS that are bridged together. Each one represented by the amplifier symbol in the diagram.
I'm asking about one amp when no other amp is present.

How do you bridge a mono amp when only one amp is present?

A step further: When you have a branded car amp that is sold as mono, how do you bridge that amp to make more power?

This is where you would have to be very specific with your questions. A mono amp with just one internal amp has nothing to bridge. It is also going to be a lower powered mono amp.

 

[RobGMN 5,000+ posts]

Not so, they typically do it easier. Higher compliance.

I thibnk we're jumping across things here.
Do paper cones play lower than poly, or do they just play the same frequencies at the same dB with lower power?

I assume by by "easier" you mean with lower power.

 

[ThxOne Premium Member]

I thibnk we're jumping across things here.
Do paper cones play lower than poly, or do they just play the same frequencies at the same dB with lower power?

I assume by by "easier" you mean with lower power.

I am sure they will play the same frequencies. Yes, sure... easier with less power. It was also written about in an MECP book that a car stereo shop owner had me read when I worked for him. It also spoke how paper cones responded better in large cabinets.

 

[RobGMN 5,000+ posts]

This is where you would have to be very specific with your questions. A mono amp with just one internal amp has nothing to bridge. It is also going to be a lower powered mono amp.

So you can't bridge A mono amp.
You can bridge mono ampS.

Precisely what i have been saying all along.

What about multiple mono amps that are already bridged and "boxed" to make a more powerful mono amp, such as a Rockford, Skar, B2, Taramps, etc?
How do you bridge one of those box amps?

And how would you make it with multiple channels, to run in (at minimum) a stereo configuration?

 

[ThxOne Premium Member]

So you can't bridge A mono amp.
You can bridge mono ampS.

Precisely what i have been saying all along.

What about multiple mono amps that are already bridged and "boxed" to make a more powerful mono amp, such as a Rockford, Skar, B2, Taramps, etc?
How do you bridge one of those box amps?

And how would you make it with multiple channels, to run in (at minimum) a stereo configuration?

It's actually not what you have been saying all along and now you will attempt to take over this thread by asking a bunch of pointless questions that you didn't get answers to in another thread.

 

[RobGMN 5,000+ posts]

I am sure they will play the same frequencies. Yes, sure... easier with less power. It was also written about in an MECP book that a car stereo shop owner had me read when I worked for him. It also spoke how paper cones responded better in large cabinets.

OK. So your original statement could lead to an ongoing debate about its validity, because it said something entirely different from what you are saying above.

You went from a statement that paper clones play lower than poly cones, to paper and poly will play the same frequencies, but paper will do it with less power.

That's a pretty big variation.

 

[ThxOne Premium Member]

OK. So your original statement could lead to an ongoing debate about its validity, because it said something entirely different from what you are saying above.

You went from a statement that paper clones play lower than poly cones, to paper and poly will play the same frequencies, but paper will do it with less power.

That's a pretty big variation.

I'm not interested in debating with you in every thread on the forum. Have some self control Rob.

 

[RobGMN 5,000+ posts]

It's actually not what you have been saying all along and now you will attempt to take over this thread by asking a bunch of pointless questions that you didn't get answers to in another thread.

You created the thread to discuss the very fiction that A mono amp can be bridged.
You then showed two mono ampS that are bridged in an effort to "prove" the fiction is not fiction.

And just to be clear. i never said a mono amp can be bridged, I even denied as much back in 2022, and was willing to bet money that no proof could ever be found that I did so.

So we are in agreement that a single mono amp cannot be bridged. It takes TWO or more to do so.

Are we also in agreement that a "boxed" mono amp (such as those sold by many manufacturers, like a B2 4500.1, or Rockford R2500X1) cannot be bridged by the user in order to make more power?

 

[ThxOne Premium Member]

You created the thread to discuss the very fiction that A mono amp can be bridged.
You then showed two mono ampS that are bridged in an effort to "prove" the fiction is not fiction.

And just to be clear. i never said a mono amp can be bridged, I even denied as much back in 2022, and was willing to bet money that no proof could ever be found that I did so.

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So we are in agreement that a single mono amp cannot be bridged. It takes TWO or more to do so.

Are we also in agreement that a "boxed" mono amp (such as those sold by many manufacturers, like a B2 4500.1, or Rockford R2500X1) cannot be bridged by the user in order to make more power?

I made this thread to get more traffic in the main part of the forum. Not to debate with you. I do not agree with you about anything you keep slipping into the conversation to boost your ego. You did however in the past demand a schematic of a bridged mono amp. I provided it, case closed. Move on, this is not your debate thread.

 

[RobGMN 5,000+ posts]

I made this thread to get more traffic in the main part of the forum. Not to debate with you. I do not agree with you about anything you keep slipping into the conversation to boost your ego. You did however in the past demand a schematic of a bridged mono amp. I provided it, case closed. Move on, this is not your debate thread.

OK. But since we are not in the Lounge, an effort should be made to not promote fictions that others, who are less informed about audio, may take as a truth because they read it from an old-timer.

 

[ThxOne Premium Member]

OK. But since we are not in the Lounge, an effort should be made to not promote fictions that others, who are less informed about audio, may take as a truth because they read it from an old-timer.

That is not what the thread is and it doesn't need a fact checker.

 

[Jimi77 5,000+ posts]

Back in the early 90s (may have even been late 80s), I had bridged mono amp. Really nice PPI amp - 800wrms class a/b stable into 4 ohms. Massive sucker. Picked up super cheap too. The muting circuit was defective on that series amps so the guy I got it off thought it was dead. PPI ended up repairing it for my under warranty. I'm sure it could have been run in stereo with some modifications. They probably had a stereo version of the same amp.

 

[1aespinoza 10+ year member]

I will start it off. I believe there are such things as "Bridged - Mono Amplifiers." Some would say you can't bridge a mono amplifier. Believe it or not, many mono amplifiers are bridged. Here is what I would present as proof.

Please feel free to insert your opinions, proof, disproof, facts or other.

Bridged-Mono Amplifier.

I believe what this shows is two mono amplifiers in a strapped configuration. Two monos but as a whole they are calling it "bridged".
A misnomer? Maybe, but electrically I think they are the same thing. When repairing my 2 channel US Amps 500a I noticed that the positive wire of the left channel was soldered in the negative through hole of the circuitboard. I asked the tech that was guiding me about this and he said it was common design. He said it is basically two mono amplifiers in one case.

 

[ThxOne Premium Member]

I believe what this shows is two mono amplifiers in a strapped configuration. Two monos but as a whole they are calling it "bridged".
A misnomer? Maybe, but electrically I think they are the same thing. When repairing my 2 channel US Amps 500a I noticed that the positive wire of the left channel was soldered in the negative through hole of the circuitboard. I asked the tech that was guiding me about this and he said it was common design. He said it is basically two mono amplifiers in one case.

That is exactly correct. The additional amp is there increase the rail voltage and make a more powerful mono amp. I linked the site where they discuss it. It is all the same circuit on the same board with 1 input and 1 output.

 

[ThxOne Premium Member]

Back in the early 90s (may have even been late 80s), I had bridged mono amp. Really nice PPI amp - 800wrms class a/b stable into 4 ohms. Massive sucker. Picked up super cheap too. The muting circuit was defective on that series amps so the guy I got it off thought it was dead. PPI ended up repairing it for my under warranty. I'm sure it could have been run in stereo with some modifications. They probably had a stereo version of the same amp.

I miss the old PPI stuff.

 

[Jimi77 5,000+ posts]

I miss the old PPI stuff.

The amp was before the Art series. The amps were so massive back then. 800wrms and the thing was probably 30 inches long. I don't have it my basement, so I must have sold it somewhere along the line.

 

[ThxOne Premium Member]

The amp was before the Art series. The amps were so massive back then. 800wrms and the thing was probably 30 inches long. I don't have it my basement, so I must have sold it somewhere along the line.

This JP77 is probably the longest amp I have owned.

 

[Jimi77 5,000+ posts]

This JP77 is probably the longest amp I have owned.

Nice amp. A little pricey, but that's a lot of power in one chassis.

 

[ThxOne Premium Member]

Nice amp. A little pricey, but that's a lot of power in one chassis.

Here is a nice fact, D4S has a lot of sales often. I got that amp cheap, got the JP63 cap bank cheap and the DSP. all were on sale at various times... oh and the JP13.

 

[Jimi77 5,000+ posts]

Here is a nice fact, D4S has a lot of sales often. I got that amp cheap, got the JP63 cap bank cheap and the DSP. all were on sale at various times... oh and the JP13.

Is D4S reliable? I have no experience with them.