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Old 1st September 2012, 03:50 PM   #1
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Default Which is the most powerful Class D amplifier?

The following are Class D guitar amplifiers...which is the most powerful.....?....

-which consumes most power from the mains when on max power setting?
-Which is the loudest?

Blackstart ID:100TVP
ID:100TVP Guitar Amplifier - Blackstar Amplification

Fender Mustang IV
Mustang? IV by Fender Guitar Amplifiers
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Old 1st September 2012, 04:01 PM   #2
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The Fender, 2x75W stereo or 150W mono.

The specs are stated on both sites.
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Old 1st September 2012, 04:03 PM   #3
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Loudness has more to do with the efficiency of the loudspeakers then the power of the amplifier.

For example a 100 watt amplifier is only 3dB louder then a 50 watt amp. Connect a 98dB speaker to the latter and a 93dB to the former and the 50 watt combo will go louder.

Output power can also be defined in many different ways, ie at what level of distortion was the measurement taken, at what frequency and whether or not they are displaying a peak or continuous figure.

As to the maximum rated power the unit can draw from the wall, this is even more ambiguous as we don't know how efficient the internal parts are and we also don't know if the power supply has been designed to be able to deliver enough current for continuous maximum operation, or just a peak value.
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Old 1st September 2012, 04:06 PM   #4
Pano is offline Pano  United States
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Yep. What 5th said.
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Old 1st September 2012, 04:09 PM   #5
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Since I'm not really interested in which guitar amp can play the loudest, or has the most powerful amp section as that is completely and utterly irrelevant for a guitar player like me as there are hundreds more important things about a guitar amp than output, I'll just answer the question which is the most powerful class D amp at all. And it's probably PKN 3PHASE-40K. 4x10000W in a 1U rack is at least the most powerful amp I've heard off that is commercially avaiable. Interesting thing is that the PKN is in part designed by resident DIYaudio poster, Pafi (it's the P in PKN).
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Old 1st September 2012, 04:53 PM   #6
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Unfortunately is't not me. I'd be proud, but no. I'm Peter Sass, while one of the designers is Peter Papp. We are all Hungarians, I've met the PKNC designers, talked about power supply design, maybe I had a little influence on it, but I haven't designed any part.

Last edited by Pafi; 1st September 2012 at 05:08 PM.
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Old 1st September 2012, 05:52 PM   #7
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Quote:
Originally Posted by Pafi View Post
Unfortunately is't not me. I'd be proud, but no. I'm Peter Sass, while one of the designers is Peter Papp. We are all Hungarians, I've met the PKNC designers, talked about power supply design, maybe I had a little influence on it, but I haven't designed any part.
Terribly sorry for the confusion.
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Old 2nd September 2012, 09:18 AM   #8
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Quote:
The specs are stated on both sites.
I agree but what is the interpretation of the specs.?

..as 5th element says there are many different ways to measure power in amplifiers

The Fender Mustang IV says "150W" on its website, but has "350W" written on the chassis of the amplifier.

There should be a standard for class d power rating, as 5th element above alludes.

Since the lowest guitar note is 82Hz, i am surprised they dont just use that and say what max average power the class d can put into a speaker when playing 82Hz sine.
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Old 2nd September 2012, 12:18 PM   #9
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Quote:
The Fender Mustang IV says "150W" on its website, but has "350W" written on the chassis of the amplifier.
Isn't the 350W power consumption? Not output power (150W)
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Old 2nd September 2012, 04:21 PM   #10
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i think 350W is the apparent power drawn from the mains...but im not sure....there is no PFC in fender mustang IV
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