Watts per channel question.

[c413]

The receiver that i want to get for my sound system says that it can do 105 watts per channel, but the speakers i have are:

Frequency Response: 50 Hz - 20 kHz, Peak Power Handling: 125 watts, Sensitivity (1w/1m): 90 dB

and the sub is:

250 watts Peak Power Output

will this matter since the peak powers are higher than the watts per channel on the receiver?

 

[skizzerflake]

You should be fine as long as you don't push the receiver to "11". Most of the time an amp is idling along with a few watts until you hit the really loud parts. The worst speaker damaging distortion comes when you hit loud passages but they are usually short. You only need to worry if you play something with consistent loudness that persists and you push the loudness to the max. Cutting off the lows where the sub kicks in will give you a little more leeway because lows use the most power.

 

[c413]

but the sub is an active sub so it is its own, would that make a difference?

 

[sholling]

but the sub is an active sub so it is its own, would that make a difference?

What he was trying to say is that by crossing over to the subwoofer a bit higher than the speakers require you can take some strain off the receiver and put it on the subwoofer.

For example if you have a pair of speakers that are rated for 50-20,000hz. You could set the receiver's crossover at 50hz and let the receiver deal with everything over 50hz, or you could set the receiver's crossover at 80hz and let the subwoofer deal with the more power hungry frequencies.

 

[markw]

That sub amp is for the subwoofer only.

Your main speakers will never see the output from your sub amp. All they will ever see is the output of your receiver's amp.

 

[highfigh]

The receiver that i want to get for my sound system says that it can do 105 watts per channel, but the speakers i have are:

Frequency Response: 50 Hz - 20 kHz, Peak Power Handling: 125 watts, Sensitivity (1w/1m): 90 dB

and the sub is:

250 watts Peak Power Output

will this matter since the peak powers are higher than the watts per channel on the receiver?

How much power you need depends on how you'll use the system. If it will usually be at low levels, you'll have no problem with what you describe but if it's balls to the wall, all day and all night, you need something else. A slight difference in power rating between the speakers and receiver means nothing if the average listening level is at 1-10 Watts but it matters a lot at high power levels.

 

[JerryLove]

To put some perspecive on it, a 90db sensitivity: you'll hit 100w at 110db@1m. That's really loud.

 

[highfigh]

To put some perspecive on it, a 90db sensitivity: you'll hit 100w at 110db@1m. That's really loud.

In the mid-range, yeah but you know how some people just have to feel the music in order to really experience it.

 

[tom67]

Power

Your neighbors and the local police will stop you before you damage your hearing and your equipment if you intend to push the system to the limit in most cases....

 

[lsiberian]

The receiver that i want to get for my sound system says that it can do 105 watts per channel, but the speakers i have are:

Frequency Response: 50 Hz - 20 kHz, Peak Power Handling: 125 watts, Sensitivity (1w/1m): 90 dB

and the sub is:

250 watts Peak Power Output

will this matter since the peak powers are higher than the watts per channel on the receiver?

What you need to use to determine proper speaker/receiver matching is the impedance. Generally if you have a dual midrange speaker the speaker is truly 4 ohm and needs a more robust receiver. If you have only have on midrange then you can go with a cheaper one. Also be sure to run the speakers and receiver by us. We can probably point you in the right direction. There are some duds out there and we know what most of them are.

 

[c413]

well the receiver i want is:

http://www.newegg.com/Product/Product.aspx?Item=N82E16882105433&cm_re=home_receivers-_-82-105-433-_-Product

and the speakers are:

http://www.a1components.com/itemdisplayn.aspx?item=11974

and the sub is:

http://www.a1components.com/itemdisplayn.aspx?item=10985

 

[markw]

What's the impedance of those speakers?

As mentioned before, impedance is a fairly important consideration in selection speakers and amplifiers to drive them.

That fairly important spec seems to be missing from all the info I can find from either the site you mentioned or even CV themselves. Then again, I really didn't look too hard after the CV site let me down.

The fact that the Sony cannot handle four ohm speakers would suggest that you might want to explore this further.

FWIW, don't worry about that receiver putting out 105 watts. It ain't gonna happen.

 

[c413]

then i guess im still confused as to how i should go about looking for a receiver, and what i should be looking for.

 

[MidnightSensi]

Those Vegas are super sensitive, they'll play loud on any decent receiver. Wattage isn't super important to them, because those don't have high power handling and are an easy load to drive.

So, I'd decide on a receiver more based on features rather than power output. All the decent entry level receivers (Onkyo, Denon, Pioneer, etc.) are about the same.

 

[tom67]

Loud for less

If you are a young rocker, this could be just what you want and not break the bank...Not bad for HT either....

 

[lsiberian]

I'd suggest you get a pair of the behringer 2030p's(similar price point) due to their rave reviews of many owners around here. These speakers have measured well in off-axis response, Frequency response and distortion.

For subs I'm not a fan of the CW subs I've heard. I'd rather have a pair of Dayton sub 120s. If you've heard and love these speakers go for them. If not I'd go for something with broader appeal.

What's your overall budget? Listening preference(music/movies)

 

[c413]

well the sub and speakers are already purchased and now i need the receiver

 

[MidnightSensi]

I'd suggest you get a pair of the behringer 2030p's(similar price point) due to their rave reviews of many owners around here. These speakers have measured well in off-axis response, Frequency response and distortion.

For subs I'm not a fan of the CW subs I've heard. I'd rather have a pair of Dayton sub 120s. If you've heard and love these speakers go for them. If not I'd go for something with broader appeal.

What's your overall budget? Listening preference(music/movies)

The tweeters would be on his lap. Those are nearfield monitors.

 

[markw]

well the sub and speakers are already purchased and now i need the receiver

Again, how many ohms (impedance) are those speakers?

 

[lsiberian]

The tweeters would be on his lap. Those are nearfield monitors.

They measure much better than I thought they would. Chris has the measurements and they are just fine for most setups. They aren't JTR's though.