How to Avoid over powering speakers?

[Automission]

Originally Posted by Pelican170

do you have towers? if not, then they should definately be set to small, then do the hz also...

Towers for front left and right only. Rest are bookshelf and a centre. Sub too of course.
Thing is, i cant see the onkyo manual giving a "small" option, just Hz. So I'l ideally need to find out what small means to hz. I can't really risk going with any number.

[Pelican170]

Originally Posted by Automission

Towers for front left and right only. Rest are bookshelf and a centre. Sub too of course.
Thing is, i cant see the onkyo manual giving a "small" option, just Hz. So I'l ideally need to find out what small means to hz. I can't really risk going with any number.

well, you really should be going off your speaker specifications... if you have towers, im pretty sure you would be safe with crossover set at 80 for your fronts... my onkyo doesnt have a small/large speaker setting either...

[Automission]

Originally Posted by Pelican170

well, you really should be going off your speaker specifications... if you have towers, im pretty sure you would be safe with crossover set at 80 for your fronts... my onkyo doesnt have a small/large speaker setting either...

Did you check my first post? It has a link to my speakers and their spec, surely you could theorize on the correct hz from that. I would, but as you can tell I know jack ****ing shit and will severely struggle with setup.
How do i go off the speaker specs? What numbers do I look at, and how does that help me work out the correct hz?

[Pelican170]

Originally Posted by Automission

Did you check my first post? It has a link to my speakers and their spec, surely you could theorize on the correct hz from that. I would, but as you can tell I know jack ****ing shit and will severely struggle with setup.
How do i go off the speaker specs? What numbers do I look at, and how does that help me work out the correct hz?

Ok, i looked quickly. The specs on these towers look nice. Seems like they can handle pretty low frequencies. Here is what you look at, so you know for the future.

33 Hz - 30 KHz

Which means, your speaker specifications claim they can do 33 hz (the low frequency) through 30 KHz (which is actually 30,000, being the high end frequencies). When you do your crossover, you want to set it so that anything under 33 hz is sent to your subwoofer to handle. Now, 33 hz is really low for a tower to put out, IMO. So, i would try crossing over at 45 give or take, and sit and listen to them. you can play with the ranges by putting the crossover at whatever you like, whether it be 35 hz - 80 hz (is what i would do) and see what you prefer and how your speakers handle those lower frequencies.

[Steve]

I just skimmed over most posts, so forgive me if someone already brought this up. The Onkyo 606 is rated at 6-16 ohms, but the BR6 towers specify 4 ohms. Not a huge difference, but you may run into trouble trying to power those speakers with that receiver.

[Automission]

So Ohms factor into it now? ....Anyone want to buy this shit, so i can go back to stereo? My head is gonna explode at this.

so, Towers with crossover at 45hz. The same for the rest, near enough? This Ohms situation. Can I not adjust the settings on the Receiver to output at the right ohms? Obviously the sub has no need for a cross over rate, right? As it will be taking all the low frequencies, it won't need lowering, etc.

[Audiophile_At_Birth]

Try to find an 8ohm speaker. A 4ohm speaker on your Onkyo will fry it!!! The Onkyo is simply not efficient enough to drive those speakers in a stereo mode let alone a 5.1 setup.

[Pelican170]

Originally Posted by fireman325

I just skimmed over most posts, so forgive me if someone already brought this up. The Onkyo 606 is rated at 6-16 ohms, but the BR6 towers specify 4 ohms. Not a huge difference, but you may run into trouble trying to power those speakers with that receiver.

Yea, i forgot to mention that. i noticed this when looking at the specs. its probably going to be hard to power them fully...

[sheedoe]

Pelican +1. My tower has a 8" woofer and a powerful emotiva amp, and I still set my front tower to 80hz. Ask yourself one question, what can handle the low frequency (<80hz) better, a mid size speaker or a subwoofer designed ONLY to handle those lows?? Also, setting your speakers to small gives it a nice overhead to handle the high-frequency signal better, so you will hear more "crisp" sound coming from your front speakers, and deep bass coming from your subwoofer.

[Pelican170]

Originally Posted by Automission

So Ohms factor into it now? ....Anyone want to buy this shit, so i can go back to stereo? My head is gonna explode at this.

so, Towers with crossover at 45hz. The same for the rest, near enough? This Ohms situation. Can I not adjust the settings on the Receiver to output at the right ohms? Obviously the sub has no need for a cross over rate, right? As it will be taking all the low frequencies, it won't need lowering, etc.

your sub needs to be set to the highest low frequency lol. now that sounds strange. so, say your surrounds are 120 hz (being the highest of the lows, if every other speaker is under 120 hz). make sure your sub is set to 120 as well. Make sense?

[Automission]

so those speakers, with the onkyo 606, will fry the onkyo? ....I wish someone had pointed this out. Fat ****ing good it'l do me since I already have the Onkyo and have ordered the speakers. Excuse me.
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[Steve]

Originally Posted by Automission

so those speakers, with the onkyo 606, will fry the onkyo? ....I wish someone had pointed this out. Fat ****ing good it'l do me since I already have the Onkyo and have ordered the speakers. Excuse me.
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I'm sorry someone didn't point this out to your sooner, but most likely the Onkyo will not fare well with those speakers. I know that telling you this won't make you feel any better now, but in the future, it's ALWAYS better to pick out speakers first. This way, you can then be sure to pick a receiver or amp that's appropriate for the power/impedance ratings of the speakers.

[FIDDYPOP]

Most speakers blow from being underpowered.

[Pelican170]

Originally Posted by sheedoe

Pelican +1. My tower has a 8" woofer and a powerful emotiva amp, and I still set my front tower to 80hz. Ask yourself one question, what can handle the low frequency (<80hz) better, a mid size speaker or a subwoofer designed ONLY to handle those lows?? Also, setting your speakers to small gives it a nice overhead to handle the high-frequency signal better, so you will hear more "crisp" sound coming from your front speakers, and deep bass coming from your subwoofer.

yea i totally agree as well...

[Steve]

Originally Posted by FIDDYPOP

Most speakers blow from being underpowered.

Agreed. But mismatching impedance is a whole different animal.

Automission-I would suggest reading through this thread (or at least the 1st post) to get a better understanding of why impedance ratings (ohms) are important.

[pere]

Originally Posted by FIDDYPOP

Most speakers blow from being underpowered.

If that was true you could blow your speakers lowering the volume.

[Steve]

Originally Posted by pere

If that was true you could blow your speakers lowering the volume.

Not exactly. The issue comes when you have a receiver with power output equal to or less than what your speakers can handle, and you try to run things too loud. The receiver working at its limit starts to distort really badly and its power output becomes sporadic with huge peaks and lows and it's usually this distortion that blows your speakers. On the other hand if your receiver had more power than needed, then it could easily supply your speakers with their rated power, and that power would be nice and clean, with very little or no distortion, resulting in great sound.

[Automission]

Originally Posted by fireman325

Agreed. But mismatching impedance is a whole different animal.

Automission-I would suggest reading through this thread (or at least the 1st post) to get a better understanding of why impedance ratings (ohms) are important.

oh okay, excuse while i go to fcuking maths and physics school to understand what half of that bollocks means. I'l just assume number one must match number two, otherwise stuff go bang.
I'm hearing from people they ran 4 ohm speakers on a 6 ohm reciever, and it was fine anyway. Are you being too cautious? or am i being a retard again?

[Pelican170]

Originally Posted by Automission

oh okay, excuse while i go to fcuking maths and physics school to understand what half of that bollocks means. I'l just assume number one must match number two, otherwise stuff go bang.
I'm hearing from people they ran 4 ohm speakers on a 6 ohm reciever, and it was fine anyway. Are you being too cautious? or am i being a retard again?

Its tough to understand at first. Just figure that since your speakers are 4 ohms it takes alot to power them. Think of it somewhat like this, if your receiver is 100 watts x 7 @ 8 ohms, that running 4 ohm speaker would be like pushing out 50 watts x 7. its a horribly inaccurate analogy im trying to show you here but hopefully you can understand this..

Edit - After re-reading this, im not sure if that came out right. can anyone else help?

[sheedoe]

Originally Posted by Automission

oh okay, excuse while i go to fcuking maths and physics school to understand what half of that bollocks means. I'l just assume number one must match number two, otherwise stuff go bang.
I'm hearing from people they ran 4 ohm speakers on a 6 ohm reciever, and it was fine anyway. Are you being too cautious? or am i being a retard again?

Simply stated, a 4 ohm speaker will draw more power than a 6 ohm receiver is designed to provide thereby overheating the receiver (as well as other complications).