Home Theater Forum and Systems banner

1 - 4 of 4 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter #1
On the jamo website, I see S809 has Power Handling 120w/240w with impedance 8 ohm. Is that the power needed per channel? If so, I see most receivers under $1000 will have RMA output below 120w per channel. Like "Pioneer VSX-LX304" and "Yamaha RX-A2A" both have a price tag of around $800, but both receivers only rated output power of 100 W (8 ohms, 0.06% THD) (20Hz-20kHz, 2-ch driven) what is smaller than 120W what this S809 need. Does that mean even an $800 receiver will not be powerful enough to push a $350 speaker? That doesn't make sense to me.


Here are the products and spec I mentioned above:
 

·
Registered
Joined
·
62 Posts
It really depends on several things. First is what is called the sensitivity of the speakers. This is determines how loud the speaker will be for a given input. The more sensitive the speaker is the lees power it will take. Second is the size of your room.

That being said, small changes in power will not produce large changes in sound levels. For example say you drive a speaker at 90 watts. doubling that power to 180 watts will only increase your sound level by 3 db.

I would say that in most cases any for those AVRs would drive your speakers without problems.
 

·
Registered
Joined
·
1 Posts
I have speakers that have a program/peak recommended power input of 220/400 watts at 4 ohms.
I drive them with an amp that can do 200 into all 5 channels or 350 into one and I have never wanted more.
Try and get at least above your program power level. Peak is not so important, but it reduces the distortion at near maximum levels.
 

·
Premium Member
Joined
·
63 Posts
As "dschlic1" and "the_clangers" have said, efficiency of the speakers are the greatest determinant of db's of sound per power watt output. If you currently have a amp/receiver capable of 8 ohms output try it with your new speakers. I used to have a old amp with analog dials for wattage output and with the speakers I had at the time when I got around 1 watt output it started to get uncomfortably loud. If the speakers are rated at 200 watts, that is usually the amount of sustained power they can take before starting to self destruct. I don't think you would enjoy listening to speakers driven to their full capacity. Now days, it is hard to find any amplifier / receiver with output under 50 watts per channel. With the correct impedance matching, I'm pretty sure any of your choices would bring satisfying results. Enjoy!
 
1 - 4 of 4 Posts
Top