What would be in your view the ideal power an amplifier should have for today's offer of 2.0 or 2.1 passive speaker's system for home use or what do you think should be better instead of what's dominating the market today?
Bizarre question (on several levels)! 😵
1. a "2.1" system is a pair of spkrs plus a sub, right? Given the amp you are talking about will be driving a pair of passive spkrs (as the sub will be powered) ... the same amp would be used in a "2.0" system.
2. the amp that's required depends on what the spkrs are. For instance ... spkrs which:
* have an impedance curve which does not go lower than 8 ohms
* have a benign phase curve
* and are quite efficient
... will probably be driven quite happily by a 50w-into-8-ohms integrated.
But spkrs which:
* have an impedance curve which drops to 2 ohms
* have a wicked phase curve
* and are not efficient
... will require something like a Sanders Magtech, to make them deliver their best.
At the bottom of adason's post!
Andy
What kind of shoes are best? That is how vague your question is. You need things like room size, how loud, what speakers, and on and on.
Firstly I see nothing on Adason's bottom post.
Secondly...I know it's a bizarre question , but there's always an average prefference.
Thanks for pointing me to Sander's page...never heard of him, but have no regrets as I don't belive a iota out of his words or specs after seeing him advertising a 100% efficiency regulator.
In my experience I never saw a need for anything past 100watts rms /channel for even a conference room like Oxford's university one on 86 db SPLspeakers , but that's just my opinion and I'd like to be challenged on that with real numbers .
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In vague generalities, the largest amp you can afford within reason. No one ever said if I only had less power! If you need it you have it, if you don’t just don’t turn it up that far.
This may be interesting:
https://www.diyaudio.com/community/...h-voltage-power-do-your-speakers-need.204857/
https://www.diyaudio.com/community/...h-voltage-power-do-your-speakers-need.204857/
Thanks @MarcelvdG ! I'll try reading the 70 pages topic one of the weeks 🙂.
It reminded me of a Meyer old note on their PA amps able to sustain the prescribed output power for a minimum of 500ms and a NAD patent on delivering high output powers with limited resources for just the right amount of time for a normal musical program( probably not a House music test sound 🙂 ) whatever that "normal " may have been, but I'd really like remembering what the NAD patent was about.
It reminded me of a Meyer old note on their PA amps able to sustain the prescribed output power for a minimum of 500ms and a NAD patent on delivering high output powers with limited resources for just the right amount of time for a normal musical program( probably not a House music test sound 🙂 ) whatever that "normal " may have been, but I'd really like remembering what the NAD patent was about.
My signature page.
You would see it if you use computer. Perhaps your phone is not showing it.
http://edsaudiopages.blogspot.com/?m=1
I went into your max 10 watts plan and I went to compare it with my 8ddb spl 30va old speakers efficiency which I hardly considered loud enough then went into this: https://forum.speakerplans.com/power-factors-for-speakers_topic52128.html
And my final conclusion would be that I'm deaf...so no power would be enough for me 🙂
Well I remember the 35W grundig box 550 doing a great job in my 3/4/2.4m room but I haven't used speakers in my room since 2012...so I completely dumped all power amplifiers , went exclusively on headphones for a full decade , but if I go back into using speakers I might like an amplifier with some more resources in case I need to sell it later.In a way I'm attached to the 100 watts/ 8ohm figures based on my past experiences...Should I stick to it? I talk like a 4 ohm 50 watts Grundig guy, I walk like a 4 ohm 50 watts Grundig guy...therefore I must be a 50 watts 4 ohm Grundig home speaker guy...100watts in 8 ohm is 4 times that figures...maybe 50 watts in 8 ohm and 100 watts in 4 ohm would be my own figures.
Sounds good to me. Even your car has 9000 rpm max, it does not mean you have to drive it that hard. Things perform better when they are not pushed to the limit.
The calculations I posted are from an old article, and are correct. But these days people use even less efficient speakers than in 80ties. So more power is required.
60-100 watts per channel is all it takes with reasonable speakers and moderate level.
The calculations I posted are from an old article, and are correct. But these days people use even less efficient speakers than in 80ties. So more power is required.
60-100 watts per channel is all it takes with reasonable speakers and moderate level.
I measured the power consumption of my amp ( class d, driving both channels ) at less than one watt whilst playing music loud on inefficient omnis, but only a few feet away, how much that equates to as peak power per channel I have no idea. How much of a powerful amps sound comes from the power, or from the beefy power supply that they come with?
Doesn't his post look like this, to you?
Can I suggest that sometimes you actually have to experience something before you believe the numbers. 🙂
Andy
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It so very dependent on speakers, room and music genres. My guess is that for average speakers in a normal domestic space 60 WPC is plenty. But I've owned speakers and listening spaces where 200 WPC wasn't enough, and others where 5 WPC was plenty. Horses for courses, as they say. I'd still say 60 watts, although 100 WPC isn't much harder with today's tech.
For some reason I was never impressed with low spl dynamic speakers...they might be more linear, but I never liked that kinda sound and...I'm not too fond to subbase insane levels either...I can't stay in a disco for more than 5 minutes and I very rarely go to amplified concerts due to that...so maybe it's just me in my own equation, yet I wanted to know what sort of speakers dominate the market today.I supposed most of us would live in humble conditions not in very large apartments...but I might be wrong again not knowing what humble means to other people than me...
I'm not sure about today's market, although I used to go to lot of audio shows. IME the for decades the market has be dominated by speakers with an efficiency in the upper 80s. Given the size of the drivers, the size of boxes that people want, and some bass extension, that's where they end up. If you want bass and higher efficiency then the drivers and boxes get big. That's my favorite type of speaker, but they can take up a lot of room - usually not high WAF.
High efficiency speakers fit my style and I love them, however - I can't complain about the Magnepan products, I do like the way they sound. They tend to be in the low 80s for efficiency.
High efficiency speakers fit my style and I love them, however - I can't complain about the Magnepan products, I do like the way they sound. They tend to be in the low 80s for efficiency.
And the impedance & phase curves of the spkrs, I suggest. A 100w-into-8-ohms amp may not improve the sound, with a given pair of spkrs, over a 60w-into-8-ohms amp if both amps have a wimpy PS (so can't 'double down' into 4 ohms).
Andy