noob question re 2ohm speakers with Denon 1713

[tallmike]

Hi,

I am a noob to AV receivers and speakers. Recently I bought a brand new Denon AVR 1713. I also had a old set of Sony HTIB speakers and they marked 2 ohms. I connected Front L&R and center to Denon 1713. After Audyssey setup, here is the parameters set by 1713.

Speaker config:
Frone: large
Center: Small

Levels:
Front L: -2.0 db
Front R: -2.5 db
Center: -4.5db.

Speakers worked so far however I heard that those speakers might cause issues to my Denon receiver.
Is my setup ok? Will my new receiver survive those HTIB speakers?

Thanks,

 

[Irvrobinson]

I've never seen a speaker rated at 2 ohms. Are you sure? If the system works fine and the Denon isn't overheating or sounding bad, you're probably doing no harm at all, no matter how the speakers are rated.

 

[tallmike]

How do I know? 2.7 ohm according to the labels.

 

[templemaners]

If they are HTiB speakers, I highly doubt they are worth being set as large for the front. And most receivers can't handle 2 ohm loads well at all.

Personally, I wouldn't use them, both because of the potential ohm issue as well as they are unlikely to be quality speakers. Time to go shopping for some new ones.

 

[twoeyedbob]

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[twoeyedbob]

2 ohm's is a bit weird for mainstream non exotic spkrs....
If it was me... i'd get my multimeter out and doublecheck things...


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[TLS Guy]

2 ohm's is a bit weird for mainstream non exotic spkrs....
If it was me... i'd get my multimeter out and doublecheck things...


Sent from my HTC Vision using Tapatalk 2

That will measure the DC (Re) and not the impedance (Znom)

 

[twoeyedbob]

Not if its set to res (ohms)

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[Grador]

Not if its set to res (ohms)

What TLSguy said is correct. With a multimeter you're measuring the DC resistance not the reactive impedance. The resistance can give you a vague clue of the impedance that the receiver will see, but it's not a very good measurement.

 

[markw]

HTIB speakers follow their own rules. They're made to work with one particular unit.

DC resistance will measure a bit lower than a speakers rated impedance, but two ohms is still low. In any case, many/most receivers aren't made to handle less than four ohms, if that even. Check your manual.

If it's working, consider yourself lucky, but don't be surprised if it shuts down when it's asked to breathe heavy

I'd keep the levels low and start looking to replace them ASAP.

 

[j_garcia]

I am guessing the speakers are easy to drive, as most HTIB speakers are. The low impedance is a "trick" they use in conjunction with an amp that is designed to operate at that load, along with a higher sensitivity speaker to "inflate" their wattage rating so it looks like you are buying a "1000W!!!!" amp when in reality it is like 25WPC driving a real world load. What that means is, even with that low impedance, they likely won't actually draw much current because they don't go low enough to do so. There are plenty of external amps that are 2 Ohm stable, but basically few, if any, receivers.

That said, as twoeyebob already said, the speakers are likely not great performers and I'd also be considering an upgrade.

 

[tallmike]

Thanks go to everyone for your inputs. You were right, the sound came out of those are so flat.

 

[PENG]

I don't think it is that uncommon for HTIAB speakers to be rated lower than 8 ohms but 2.7 ohms seem too low to be true. In any case I wouldn't worry about it because they 1713 should be capable of blowing those speakers up before it get itself in trouble. I mean you can have a tiny 1 ohm speaker that can only take 10W so it gets blown up before it gets to play loud and it is just not capable of damaging the amp. Think about it, those speaker were fine with your old Sony right, and that Sony most likely was weaker than your 1713.

What are the sizes and power ratings of those speakers anyway? I can't understand why the 1713 would set them to large if they are really tiny and weak. Did you follow instructions when running Audyssey? If you did everything right and Denon (not Audyssey) still set them to large then you should manually set them back to small.

 

[tallmike]

I don't think it is that uncommon for HTIAB speakers to be rated lower than 8 ohms but 2.7 ohms seem too low to be true. In any case I wouldn't worry about it because they 1713 should be capable of blowing those speakers up before it get itself in trouble. I mean you can have a tiny 1 ohm speaker that can only take 10W so it gets blown up before it gets to play loud and it is just not capable of damaging the amp. Think about it, those speaker were fine with your old Sony right, and that Sony most likely was weaker than your 1713.

What are the sizes and power ratings of those speakers anyway? I can't understand why the 1713 would set them to large if they are really tiny and weak. Did you follow instructions when running Audyssey? If you did everything right and Denon (not Audyssey) still set them to large then you should manually set them back to small.

Peng, thanks for your input. I am not sure why 1713 set them to large. I will change them to small. I cant find anything about their powers. I uploaded the tags here.

The speakers are Sony HTIB, I am able to find some pics from the net. It seemed to me only one in there even it looks tall.

 

[PENG]

Set them to small, xo to 150 hz and they will thank you. Those tiny ones can't hurt the 1713 regardless of their 2.7 ohm impedance. The 1713 can blow them like blowing a fuse.