In fact, class D doesn't have 'a sound'- the best current class D is extremely transparent, so much so that people call them clinical. They just never heard a truly transparent amp that doesn't take anything away and surely doesn't add anything to what the studio put in the source.
Jan
when did i say class D had a problem with 2 ohm loads???? who is the one embarrassing themselves here lmao i forgot how good 70’s class AB amps were at 2 ohm loads my bad
ive heard clinical amps that were good and clinical amps that were bad. class d has a sound if youre familiar with where it came from. its the same *** sound that comes from automotive head units. its the same *** sound that gave way to the rule of thumb that class D amps are used for subwoofers and never high pass duty/ door speakers.
have they gotten better? exceptionally yes and im looking forward to their further improvement and implementation when those improvements come, but for now class D has not been implemented properly to be an affordable replacement to a modern class A/ab options…
i think its very possible right now today but the companies that could, dont, because they want to make money and the companies that are doing so are probably not really making any money at all and their amp costs thousands
hahahahahahahahahaha one of those amplifiers you gotta find a dealer just to get a price on because its probably built to order. i GUARANTEE that thing sounds amazing but i would also imagine that amplifier is probably upwards of $6,000
Bottom line is cheap amplifiers are cheap amplifiers. I’ve heard my share of cheap class D, and yes, it sounds like a goddam 19.2K modem starting up with music riding on top of it. Measures “fine” in a 20KHz bandwidth, but all that ultrasonic garbage mixes with the tinnitus in my ears producing a cacaphony. Others sound fine until you start asking for real power, and then they don’t degrade gracefully at all. Those are the ones I have the biggest beef with because they dominate the market. The spendy ones do sound good.
At the same time, cheap class AB (or G, or H) have their share of problems. Some sound horrible. Others are completely “blameless”, until you try running two pairs of speakers with it. BANG - there go four output transistors, four emitter resistors, four drivers, and two bias regulators.
At the same time, cheap class AB (or G, or H) have their share of problems. Some sound horrible. Others are completely “blameless”, until you try running two pairs of speakers with it. BANG - there go four output transistors, four emitter resistors, four drivers, and two bias regulators.
Here:
Again: problems with 2 ohm load do not depend on class of operation!!!
So, according to you, which class of operation has problems with 2 ohm load???
Quote from that review: "Approximate number of US dealers: 130"
How about this $3350 LKV PWR-3 class D amplifier:
https://www.stereophile.com/content/lkv-pwr-3-power-amplifier-measurements
More than 500 W on 2 ohm load! And you don't need to hunt for the dealers - it is sold directly.
$3350 is too expensive for you? How about $140 Fosi Audio V3 class D amplifier:
https://www.audiosciencereview.com/...ds/fosi-audio-v3-mono-amplifier-review.53474/
348 W on 2 ohm load (236 W on 4 ohm and 122 W on 8 ohm)! For just $140 on Aliexpress or directly from Fosi Audio.
So, which class of operation has problems with 2 ohm load?
it wont let me quote the most recent post i dont understand why? thia guy is still entirely wrong i dont understand where youre connecting the dots that i was talking about class D?
AGAIN 2 ohm loads ENTIRELY dependent on class of amplifier per the time in history it was built and YOU ARE PROVING ME RIGHT
AGAIN 2 ohm loads ENTIRELY dependent on class of amplifier per the time in history it was built and YOU ARE PROVING ME RIGHT
you are DEAD WRONG. at no point did i say class D amplifiers have a problem with a 2 ohm load. you are proving me RIGHT by showing how a MODERN amplifier can EASILY handle a 2 ohm load. TRY THAT WITH ANY CLASS AB AMPLIFIER FROM THE 70’s!
what exactly is your problem? how are you this tunnel visioned on forcing your opinion of class d on people to where you are interpreting things so poorly?
class D SUCKS. ill stand by that until it doesnt suck anymore.
i NEVER said class d had a problem with 2 ohm loads. you just proved me right and your brain thinks you just proved me wrong? about something i didnt even say.
you need to maybe get offline for a bit
tell me right now how saying “handling 2 ohm loads is entirely dependent on class of operation PER THE TIME IN HISTORY IT WAS BUILT” is wrong?
are you saying 1970’s class Ab amplifiers could handle 2 ohm loads well? is that what youre saying?
thats laughable ive heard that bull $hit and it sucks. and yeah 3350 is too expensive for me and thats not even the amp i said probably cost upwards of $6000. what is your actual problem?
and schiit has better products for less money and they dont make you call to find out how much it is lmao what is your problem dude
And $3350 is way too expensive for a 350 watt amplifier with 0.2% THD right before the onset of clipping. For that price they should be able to do BETTER. It probably doesn’t sound bad. Just not $3000 good.
It is wrong on all levels.
I asked, and you didn't answer - which class of amp operation is troubled with 2 ohm load, PER THE TIME IN HISTORY IT WAS BUILT?
Lesson about amplifiers:
First class A audio amplifier was AT&T telephone line tube amplifier from year 1914.
First class AB audio amplifier was tube RCA Radiola Balanced Amplifier from year 1924.
As with all tube amplifiers, output transformer can be built for any load, without any other modification of the amp circuit: 16-ohm, 8-ohm, 4-ohm 2-ohms, 1-ohm, and so on... Often, output transformers have multiple taps for different loads.
So, class A or AB amplifiers, when they were first time introduced in history, were never troubled with 2-ohm load (or any other load)
Yes, that is exactly what I am saying! To name a few amplifiers from 1970's which handle 2-ohm load without problems: Bryston 4B, GAS Son of Ampzila, Hafler DH-200, Rappaport AMP-1, ...
You see, I am old enough to remember all of them. Besides, I am graduated electronic engineer (Dipl.-Ing.) and I do know you are talking nonsense about amplifiers.
its not wrong at all, youre wrong on all levels. the 4b is not recommended for 2 ohm loads. more than 90% of class AB amplifiers in the 70’s could not do 2 ohm loads well this is a known fact and youre arguing with me even going as far as saying i said something i didnt say. class D amplifiers generally perform well with 2 ohm loads. class AB DID NOT in the 70’s and thats a well known fact.
companies like bryston or mcintosh dont exactly represent the majority of class AB amplifiers in the 70’s you absolute genius.
all you want to do is argue crazy unsolicited nonsense about class D when class D still sucks and theres not much you can do about it
i want you to get information on the 2 ohm performance of amplifiers from pioneer, marantz, kenwood, technics, yamaha, etc through the 1970’s up until 1980.
do it. dont come back here until you do.
it can be power amplifiers, integrated, or stereo receivers. take your pick and again i cannot stress this enough, do not come back here until you do that
thanks
Most of those old receivers and amplifiers did NOT like 2 ohm loads. A few did, but they were expensive, weighed 80 pounds and had fans that sounded like low flying planes.
My favorite part is when the (D)vangelicals start proselytizing about transparency and perfection like the dead ghost soldiers of the 70s thd wars…trying to explain how perfect sound comes from analyzers and charts. For many if class D doesn’t represent analytical perfection and therefore perfect sterile sound then their whole belief system is shattered. Be strong when the cult of the SINAD comes knocking on your door looking for you to sell your soul for a graph, let the warm glow and wonderfully distorted harmonics of your class A/tubes light your way.
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My friend designed class D amplifier and share it to local audio community. Almost of them are high power amplifier for audio pro application. It can handle 2 ohm load and have over current protection.
To understanding amplifier topology we need understand about physic and electronic engineering, not base on STATISTIC.
How many class AB amplifier can handle 1 Ohm load even 0.5 Ohm load? Very rare. But can class AB amplifier handle 0.5 Ohm load? Of course it can if you understand how to designed it. If you never know class AB amplifier that can handle 0.5 Ohm load, it does not mean it can not.
Why class AB amplifier mostly only can handle 4 Ohm load? Because most lowest speaker impedance is 4 Ohm, and it will more expensive to make amplifier that can handle lower impedance.
If you are not amplifier designer or at least engineer, please do not make opinion about amplifier design.
To understanding amplifier topology we need understand about physic and electronic engineering, not base on STATISTIC.
How many class AB amplifier can handle 1 Ohm load even 0.5 Ohm load? Very rare. But can class AB amplifier handle 0.5 Ohm load? Of course it can if you understand how to designed it. If you never know class AB amplifier that can handle 0.5 Ohm load, it does not mean it can not.
Why class AB amplifier mostly only can handle 4 Ohm load? Because most lowest speaker impedance is 4 Ohm, and it will more expensive to make amplifier that can handle lower impedance.
If you are not amplifier designer or at least engineer, please do not make opinion about amplifier design.
Dvangelicals… LMAO. I knew things were starting to sound like religion.
Ya’ll keep it up and it will suffer the fate of a cable thread.
Personally I have no use for monstrously high power amplifiers in the home. I have sanely powered ones which will handle the loads they are expected to and have negligible distortion. They are AB and H class. Some of them have tubes, others transistors. Why tubes at all? For the fun of it, pure and simple. The solid state ones are as good as I’ll ever need and I’m not out to better them.
Now I’ve been building PA equipment since the late 70’s. I gravitate toward G and H class since I hit a brick wall running on +/-127 volt supplies in AB. The current draw is just too much at war volume. Breakers nuisance trip and the plugs get all melty after a few hours. Yeah, class D would solve those problems, but making ones that big in class D is not straightforward. You don’t just turn it on and it works. I’ve built class H that DO.
No, they don’t run 1 or 0.5 ohm. But what they DO have to do is run two subwoofer or kickbin cabs in parallel in bridge mode, or tolerate two cabs per channel with the volume turned up to 15. Without blowing breakers or fuses, degrading sound quality gracefully when driven well beyond clip, not run transistors outside their SOA, and not overheat the transformer(s). Is any of this the last word in distortion? Heavens no. But when you get it down to around .05% at the onset of clipping it’s good enough in these applications.
Ya’ll keep it up and it will suffer the fate of a cable thread.
Personally I have no use for monstrously high power amplifiers in the home. I have sanely powered ones which will handle the loads they are expected to and have negligible distortion. They are AB and H class. Some of them have tubes, others transistors. Why tubes at all? For the fun of it, pure and simple. The solid state ones are as good as I’ll ever need and I’m not out to better them.
Now I’ve been building PA equipment since the late 70’s. I gravitate toward G and H class since I hit a brick wall running on +/-127 volt supplies in AB. The current draw is just too much at war volume. Breakers nuisance trip and the plugs get all melty after a few hours. Yeah, class D would solve those problems, but making ones that big in class D is not straightforward. You don’t just turn it on and it works. I’ve built class H that DO.
No, they don’t run 1 or 0.5 ohm. But what they DO have to do is run two subwoofer or kickbin cabs in parallel in bridge mode, or tolerate two cabs per channel with the volume turned up to 15. Without blowing breakers or fuses, degrading sound quality gracefully when driven well beyond clip, not run transistors outside their SOA, and not overheat the transformer(s). Is any of this the last word in distortion? Heavens no. But when you get it down to around .05% at the onset of clipping it’s good enough in these applications.