question about impedence

[sue bee 10+ year member]

so i have a ht receiver that produces power @ 3 ohms.

what are my speaker ohm/wiring options when it comes to get 3 ohms at every speaker?

Click to read more...

 

[sue bee 10+ year member]

hello

 

[Mr. C 10+ year member]

Are you sure it says 3 ohms and not 8 ohms?

Reason is I have never heard of any home speaker (other than home made) that has a nominal 3 ohm load.

If it really is 3 ohms, what brand is it and what power is it rated at 3 ohms per channel? Putting an 8 ohm speaker on each channel would be fine, but would be delivering significantly leaa power than it's 3 ohm rating to each speaker.

 

[sue bee 10+ year member]

jvc thc50. 3 ohms, yes.

 

[sue bee 10+ year member]

come onnnnn. how bad will it be if i get 4 ohm speakers? how much of those juicy 200 watts will i miss? it's def 3 ohms.

 

[Stel 10+ year member]

I'm seeing it listed as:

* min. RMS, driven into 3 ohms at 1kHz, with no more than 10% total harmonic distortion

** min. RMS, driven into 3 ohms at 100Hz, with no more than 10% total harmonic distortion

for 200watts. Thats alot of distortion, the new CEA ratings are using 1% distortion for max power. So it really isn't putting out a clean 200 watts. Anyway it's tough to say how much it will change from 3 to 4 ohms, some amps will double their output going from 4 to 2 ohms, some will not. It depends on the amp and I doubt you'll find those specs.

 

[sue bee 10+ year member]

that sucks. so 4 ohms? will distortion be less?

 

[djman37 5,000+ posts]

that sucks. so 4 ohms? will distortion be less?

probably, and so will power.//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[sue bee 10+ year member]

****

 

[joetama 5,000+ posts]

Unless you are running some seriously power demanding speakers 200 watts is excessive...

I would say look at speakers of pretty much any impedance and not worry about it that much...

 

[Scoobydoo 5,000+ posts]

Am I the only one who finds it very hard to believe that a $300 HTIB system is actually capable of 200x6 of real world power at 3ohms?

It seems the amps are in the sub whioch could mean they are pretty powerful, but the sub is 6.5" and the fronts and surrounds have 2-3" drivers. They are getting 200 watts each??? I highly doubt it.

I read some reviews on Crutchfield and they dont add up:

great for small room.. dont plan on rattling the walls with it tho.good unit for the price

This unit is perfect for a bedroom or small family room.

Seems really odd to me, I am thinking those specs are max power and rms is more like 50 watts each channel

 

[sue bee 10+ year member]

i paid $50 for the received brand new. i like jvc receiver wise, lot of features and decent power. distortion is kinda hard on them tho./

 

[Stel 10+ year member]

Am I the only one who finds it very hard to believe that a $300 HTIB system is actually capable of 200x6 of real world power at 3ohms?
It seems the amps are in the sub whioch could mean they are pretty powerful, but the sub is 6.5" and the fronts and surrounds have 2-3" drivers. They are getting 200 watts each??? I highly doubt it.

I read some reviews on Crutchfield and they dont add up:

Seems really odd to me, I am thinking those specs are max power and rms is more like 50 watts each channel

Yeah the 200 number was with 10% distortion (see my post above). They probably are less than 100 with reasonable distortion.