2. amps-preamps
  3. 192840-184484

What actually determines volume power? Is it watts?

I have a Yamaha AS-3200 amp. It sounds beautiful and has a really good open sound. The problem is I like my music loud since I live alone and typically I have the volume 70% and with some recordings it is not high enough. I need a amp that has more power/volume.

The AS-3200 is 200 watts at 8 ohms. I see many amps, even much more expensive ones (like the Yamaha M-5000), are also at around 200 watts per a channel at 8 ohms. I am going by 8 ohms for my speakers and also the worse case scenarios. Does this mean if I had a more expensive class AB amp like the M-5000 I would still be listening at 70% volume and getting the same power/loudness? If not, then what actually determines the volume power if not watts?

dman777
pureclarity
77 posts
 

For the money u spent on this amp, there are plenty of better options out there. Like the one mentioned , Hegel, Belles, Bryston, audio research all have plenty of current to drive speakers to sound full, at a lower volume. But all these people are right. Are you looking for music at levels that make your ears bleed? Most people in a standard room depending on speaker efficiency, couldn’t go past 20-30 watts. I mean one time with a pair of 4 ohm speakers with an efficiency of 90db I hit a peak of 60 watts and the spl was 110 db. Your talking hearing loss down the road. Just my 2 cents.

toddsyr's avatar
toddsyr
138 posts
 

I run older Harmon Kardon Citation 22 amplifiers. These are pretty loud, even through my 91db JBL L100t3's. But, I always wanted a little more than the amp could provide. So, I bought another one. Switches on the back enable me to use them as mono blocks. The two amps provide 800 watts total power which makes the music much louder than even I can stand and I'm not beating the hell outta them.

richardbrand's avatar
richardbrand
361 posts
 

@dman

If, as some suggest, you look at changing both your speakers and your integrated amplifier, could I suggest you look at powered speakers where the manufacturer has effectively done the matching for you?

The little KEF LS50s are the knockout class-leader in their price range and play much, much louder than their appearance suggests. Each active speaker includes a 260-Watt class D amplifier for the bass and a 100-Watt class A/B amplifier for the treble.  So you effectively get bi-amplification and monobloc operation.  A bonus is that these units have concentric bass and treble drivers, so they throw a coherent wavefront resulting in a massive soundstage and a much bigger than usual listening area.

There are much more expensive powered speakers in the KEF range worth considering as well.

As others have said, one important role of the power amplifier is to control the momentum of a dynamic speaker, so it actually stops moving in short timeframes.  Eliminating speaker wires allows the amplifier feedback circuit to directly interact with the speaker

audiorusty
294 posts
 

dman77

For every 3 db SPL increase in output volume requires a doubling of the amplifier watts being used. So if your speaker sensitivity is 88 db, which means that it takes 1 watt of amplifier power to drive that speaker output to 88 db at 1K Hz measured 3 feet away. It will take 2 watts to drive it to 91 db, 4 watts to get to 94 db, 128 watts to get to 109 db and 256 watts to get to 111 db and that is before we consider the effects of the inverse square law which states that you will loose 6 db of SPL for every doubling of distance from the source.

To answer your question more directly, it’s a combination of amplifier power, speaker sensitivity, source level, room size, music type (low frequencies will eat more power than high) and I’m sure there are other factors I don’t know about. A 200 watt amp is a 200 watt amp and will drive a speaker close to the same volume regardless of price, but a better amp may do it a little cleaner, with better low end or  better peak output, etc. etc.

daveyf's avatar
daveyf
2,989 posts
 

My 48 watts/ch tube amp creates the same amount of volume as my 250watt/ch ss amp ( that doubles down to 400 watts/ch at 4 ohms). The reason has to do with the ability of the transformers and the amount of current delivery to my speakers. Not wattage. 

More to discover