Not sure...
How you think you could make a quality linear supply with the necessary voltages and current for less than what the SMPS 600 costs?
Thanks for answering the question regarding linear PSU.
Is there a reason to use the switching PSU instead of linear? As the linear would probably be cheaper, would it be better?
How you think you could make a quality linear supply with the necessary voltages and current for less than what the SMPS 600 costs?
You don't need the regulated high voltage, just the low voltage (18V), right?
That's more of a compromise typically used for Class AB amps which draw current all the time. Class D will have more voltage sag as it is more efficient. A well-designed SMPS is fully regulated and can deliver clean power.
yeah...
But to deliver enough current with a linear supply, you are going to need some decent iron as well, quality diodes, quality capacitors. This stuff adds up pretty quick, especially if you are going to do dual mono supplies. A SMPS does not need the big iron, so saves parts costs in big ways...
But to deliver enough current with a linear supply, you are going to need some decent iron as well, quality diodes, quality capacitors. This stuff adds up pretty quick, especially if you are going to do dual mono supplies. A SMPS does not need the big iron, so saves parts costs in big ways...
So I have finally received my custom case and it is a beauty! I will show when its all done. Its a three channel case that is 2U and custom made to support three amps and power supplies, along with xlr only connections and bi amping for all three channels! And this time, it actually provides ventilation, unlike some other cases... My question is about the power application. I have purchased, in the past, molex connections for my custom connections, but now I am feeling a little bold and want to try direct soldering of the power supplies. Is it possible, there is any benefit, or is such an endeavor just all potential downside? Has anyone ever done this? If I did it, whats the best way to insulate the soldered connection?
Thank you
Thank you
Is there a reason to use the switching PSU instead of linear?
In addition to the factors others have mentioned, I have to add the obvious ones:
- size
- weight
- heat
- power consumption
People frequently talk of the bass improving, but it has absolutely nothing to do with the actual bass frequencies; it's actually the transients and higher harmonics being reproduced properly that creates the subjective impression of better bass.
I have an active system crossed over at 200 Hz. Even so, I experienced improvement in bass quality when I changed the woofer amps only. Transients and harmonics were not affected by this amp change.
Fair enough, it's just that I've seen comments so many times implying that the deep bass frequencies are somehow "better", when it's clear that that it's frequencies higher in the spectrum that are better behaved. Experiments have shown that people are enormously insensitive to distortion in the deep bass area, eg. 100% additional distortion is not detected. But if the woofer driver is producing less harmonic distortion above, say, 200Hz because the amp change is controlling it better then it would make sense ...I have an active system crossed over at 200 Hz. Even so, I experienced improvement in bass quality when I changed the woofer amps only. Transients and harmonics were not affected by this amp change.
An interesting experiment would be to disconnect all but the bass amps, and then compare the sound of the two amps when only that part of the spectrum is being reproduced.
Frank
I believe all, in the basses, lie on damping differences. As well as harmonic distortions stays low level enough.I have done that test in my system, and I could hear a difference. Listening to music that way is really strange... I XO at 200 Hz with fairly steep crossover slope. The bass sounds anything but "fast" and precise.... is all very muddy.
So did the better amp sound less muddy, did one amp have a "sharper" tone to it, for want of a better word? What words would you use to describe the difference?
Frank
Yes - the better amp sounded less muddy, that's a good way to describe it! There was also better "punch" in bass drum, even though the upper harmonics was absent.
Did the power supply was the same ?Yes - the better amp sounded less muddy, that's a good way to describe it! There was also better "punch" in bass drum, even though the upper harmonics was absent.
I think manufacturer has few to do in the matter, but power reserve of the PSU a lot !No. I had UcD 400's with SMPS400A400 and changed to NC400 with the SMPS600. But in a way you can say it the same PSU, since both are SMPS and designed by Hypex.
I mean, you can transform any amp with the filtering caps etc...
On my amp (2X 140W class AB), i tried a lot of transformers on my PSU. 1000VA was the point where no more improvements by increasing-it. I would double the PSU power vs any amp power consumption.
Peak ? During transients ?Well, I never go beyond 20W output, so in theory a 40W supply should suffice ....
I believe-you, i just try to understand...
(Of course you are sure not to be under the effect "Last baby is the best" ?)
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