wiring onkyo-tx-nr838 to klipsch-rf82ii

[nick450r]

wow,....just had the worst nightmare ever with the "pro audio experts" at crutchfield. They assure me that bi-wiring my speakers would double the watts going to them...anyhow, here is my question. I have the onkyo TX-NR838 and a pair of klipsch RF-82ii speakers. I will be using this system ONLY for music listening, Will I need to bi-amp these speakers ?? Will it benefit me at all to do so? thank you

 

[markw]

He's full of it.

If you poke two holes in a bucket do you get more water out of it than you would get from one?

In any case, you have incredibly efficient speakers. Even if you could double the power, it would be a moot point. The increase you gain would be virtually inaudible, particularly at the level it would make a difference.

 

[fmw]

Just look at it with common sense. You can connect the "biwire" binding posts with the strap included with the speakers or you can connect them together at the amplifier binding posts by using two wires. Can you see any difference at all in that? Hopefully not, because there isn't any difference. The last place to get audio advice is from an audio dealer.

 

[nick450r]

I spoke to a klipsch rep. and he said that under powering these speakers will end up blowing the horns....well, sure enough I hook them up to a Yamaha stereo receiver with 80 watt r m s and a horn blows. so I explain this to a crutchfield rep and he sells me a avr pushing 95 watts. tells me to bi amp the speakers and it will send around 130 to 140 watts to each speaker...I call the klipsch rep back and he says that is wrong......I am really confused how to get 150 r m s to these speakers without spending $1500...??????/

 

[BoredSysAdmin]

Your klipsch rep is full it. Underpowering can only be potentially dangerous for tweeters only on really crappy and old amps and ONLY then they over driven WAY beyond their capacity.
Put in perspective with your onkyo and these speakers you can get upto 117-118 dB SPL -all within running Manufacture spec !
(I'm assuming speakers 2-4 feet near wall and your seat is 8ft away.)
It's only 2-3dB shy of sound level of 747 during takeoff.

Do you still honestly think you could possibly need more power

 

[markw]

You're not trying to get subwoofer type bass out of these, are you? They ain't made to do that. Trying to do so will most probably clip your amp and therefore kill the speakers.

Before speaker s blow, they start sounding like crap. That's a sign to turn 'em down. If you ignore that, then it's your bad.

Plus, to demand that kind of power you have to be driving them at stupid loud levels.

But, in your first post you say bi-wire and your next post you say bi-amp.

...the "pro audio experts" at crutchfield. They assure me that bi-wiring my speakers would double the watts going to them

I explain this to a crutchfield rep and he sells me a avr pushing 95 watts. tells me to bi amp the speakers and it will send around 130 to 140 watts to each speaker...

You do know there's a big difference, don't you? So, what are you talking about?

 

[fmw]

I spoke to a klipsch rep. and he said that under powering these speakers will end up blowing the horns....well, sure enough I hook them up to a Yamaha stereo receiver with 80 watt r m s and a horn blows. so I explain this to a crutchfield rep and he sells me a avr pushing 95 watts. tells me to bi amp the speakers and it will send around 130 to 140 watts to each speaker...I call the klipsch rep back and he says that is wrong......I am really confused how to get 150 r m s to these speakers without spending $1500...??????/

Why do you need 150 watts per channel? Few of us ever use more than 20 watts per channel, even less when there is a subwoofer . The second worst place to get audio advice is from a manufacturer. I mentioned above that dealers would be the worst. There is no such thing as underpowering a speaker. Speakers are damaged by overpowering.

 

[Mark of Cenla]

Speakers are damaged by amplifier clipping more often than not. As said above, there should be audible warning. I suggest hooking only two wires (+ and -) to your speakers. Peace and goodwill.

 

[TLS Guy]

I actually think those speakers would have their horns blown easily on a steady diet of compressed rock music even at levels not overly loud.

The diver of those horns now seems to be a small rather miserable tweeter in the mouth of a horn. This does not look remotely like a pro diaphragm compression driver.

The crossover is at 1400 HZ, far too low for a driver of that size and type.

So the power going to that small driver is going to be enormous, with a lot of power down as low as 700 Hz.

That is not a unit I would want to feed a diet of loud rock music to at all.

I see there are numerous outfits that seem to be doing a brisk trade in parts for those horns and I'm not surprised.

After repair I would say the OP needs to turn down the volume significantly, or else learn how to replace the diaphragms and keep lots of spares handy.

Yet another example of how the mighty have fallen.

The major problem here is very poor speaker design.

 

[Seth=L]

Under what circumstance did you blow the tweeter? Were you in the room when it happened?

 

[fmw]

Speakers are damaged by amplifier clipping more often than not. As said above, there should be audible warning. I suggest hooking only two wires (+ and -) to your speakers. Peace and goodwill.

Speakers have no idea whether an amp is clipping or not nor would it care if it did. All it cares about is that it doesn't draw enough current to fry the voice coils. However, an amp that is clipping could very well be overpowering the speakers thereby allowing them to draw more current than the voice coils can dissipate without damage.