QUOTE(ironcrowz @ May 7 2021, 04:04 PM)
Holy shoot just notice it's u who wrote the whole guide, thank u!
I think point 1.3.2 Nominal Impedance, 1.3.3 Recommended Power and 1.3.5 Sensitivity are the hardest to understand since they all are inter-related, after reading those 3 points again and again I'm still not clear on it.. The main concern is I worry about damaging the AVR and speakers by under or even over powering them due to lack of knowledge..
Can I say if I'm doing a 2.0 (2 channel driven setup), and I pair the Denon AVR-S960H which can do 90 W at 8 Ohms with the Wharfedale Diamond 12.2 which has nominal impedance of 8 Ohms and recommended power of 20~120W, there'll be no risk of under or over powering the speakers? Because the Denon is only doing 90W and 90W is within the range of 20~120W the recommended power of the speaker.
Here are the links for ur easy reference of spec:
https://www.stylelaser.com.my/product/denon...opened-box-new/
https://www.stylelaser.com.my/product/wharf...kshelf-speaker/
If in the future I expand the setup to 2.1, 5.1 or 5.1.2, there will be even less power since the power is now shared among more speakers, will it cause under power issue?
Also, if the 2 polar of the speaker cable connectors touch, it'll short circuit the AVR/speaker? I just found it out holy cow

You are misunderstanding how power works.I think point 1.3.2 Nominal Impedance, 1.3.3 Recommended Power and 1.3.5 Sensitivity are the hardest to understand since they all are inter-related, after reading those 3 points again and again I'm still not clear on it.. The main concern is I worry about damaging the AVR and speakers by under or even over powering them due to lack of knowledge..
Can I say if I'm doing a 2.0 (2 channel driven setup), and I pair the Denon AVR-S960H which can do 90 W at 8 Ohms with the Wharfedale Diamond 12.2 which has nominal impedance of 8 Ohms and recommended power of 20~120W, there'll be no risk of under or over powering the speakers? Because the Denon is only doing 90W and 90W is within the range of 20~120W the recommended power of the speaker.
Here are the links for ur easy reference of spec:
https://www.stylelaser.com.my/product/denon...opened-box-new/
https://www.stylelaser.com.my/product/wharf...kshelf-speaker/
If in the future I expand the setup to 2.1, 5.1 or 5.1.2, there will be even less power since the power is now shared among more speakers, will it cause under power issue?
Also, if the 2 polar of the speaker cable connectors touch, it'll short circuit the AVR/speaker? I just found it out holy cow
Volume is LOGARITHMIC, it is not linear. What does this mean for power? It means that power is dynamic in relevance to the volume you're trying to achieve with the speaker. Simply because the receiver is outputting 90w over 2 channels, it DOES NOT mean it is feeding 90w from 20db to 75db (as an example).
Let's take the Wharfedale D12.2 as an example, its sensitivity is 88db @ 2.83v over a 1 meter distance. This means it takes ONE watt, yes ONE watt to reach 88db of volume if you're standing 1m away from the speaker with no reflections (this is why specification numbers SHOULD NEVER be taken as a real world indication because speakers are spec'd in an anechoic chamber).
Trust me, your ears will give up first long before you even reach 90w of usage from the receiver.
So why do people want 500w per channel for a single speaker then? What's the point of mono blocks? Because in the real world, you don't sit 1m from your speaker unless you're doing a desktop setup. Then there are considerations of other drivers within a speaker. Bookshelves are usually 2 ways (tweeter - woofer), so not much needs to be said about them. But towers which are 3 way (tweeter - mid woofer - sub woofer)? Those need power and that's why towers are usually more efficient than their bookshelves counterparts due to coupling of drivers and crossover networks.
You should also understand that the higher the frequency, the less power is needed. This is because the human ears are most sensitive between the 800hz to 10khz region. Reaching 75db around these frequencies requires much less power than reaching 75db at say low bass frequencies in the 20hz region.
Power is a very long and complicated topic. As a beginner, all you need to know is that you shouldn't get caught up with all the hype around power. It's easy to get loss in it because humans always relate to bigger numbers = better.
QUOTE(ironcrowz @ May 7 2021, 04:27 PM)
Thank u! You helped a lot and now even stating the models, I'll see when I can go for a demo of those 2 models.
Q Acoustics 3020i also interests me as i read some good reviews, but the frequency response only goes down to 64hz but the 2 you suggested can go down to 43hz and 44hz. Maybe the bass sounds will better
I do not dare to search used units, as I'm not experience enough in checking it for potential defects. Maybe next time when I've learned enough from u all sifus
Ok I'm trying to understand what u mean, I know describing sound is not easy with just words, do u mean that a warm sounding speaker does not mean the highs/tweeters are weak, instead it means the mids/driver of the speaker is stronger/louder that it masks the tweeters sound, when the mids are absent, the highs should still sound bright, is that what u mean?
My opinion is always try and get a sub (well multi subs actually) to couple them with the bookshelves. Let the sub handle the bass and let the bookshelves handle the mids and upper frequencies.Q Acoustics 3020i also interests me as i read some good reviews, but the frequency response only goes down to 64hz but the 2 you suggested can go down to 43hz and 44hz. Maybe the bass sounds will better
I do not dare to search used units, as I'm not experience enough in checking it for potential defects. Maybe next time when I've learned enough from u all sifus
Ok I'm trying to understand what u mean, I know describing sound is not easy with just words, do u mean that a warm sounding speaker does not mean the highs/tweeters are weak, instead it means the mids/driver of the speaker is stronger/louder that it masks the tweeters sound, when the mids are absent, the highs should still sound bright, is that what u mean?
I've never liked to use the audiophile terms of describing sound. To me, it sounds very stupid. "Warm" for example is such a vague term because bass is from 0hz to 300hz. Which part of it is warm lol? It's more straight forward to describe the issue in the round number octaves of frequency range, rather than blanket it with a single term.
May 7 2021, 05:18 PM

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