Hello From Ireland

[JOHN FICKEL]

Those specs are with only both channels driven. Not all channels. So with all driving at the same time, your power will definitely decrease. I would probably say stay with 8 ohm speakers.

 

[JOHN FICKEL]

I'll research the speakers. I'll let u know

 

[JOHN FICKEL]

I can't find anything on those speakers. Can you please take a pic? A good quality one so we can read the back specs.

 

[aoluain]

hi all thanks for all the info. Here is a larger image

 

[markw]

OK, you got me. What I see there makes absolutely no sense but I can say this is from an inexpensive unit that probably won't long survive being connected to a "real" receiver.

 

[JOHN FICKEL]

Yea, Iv never see a speaker with two separate impedances. It's not like there is two seperate runs of the back of the speaker. Can anyone explain why there is two ratings ?

 

[aoluain]

thanks for the info, i thought i read online they were powered. Anyway sorry for the misleading original post. Ill be walking away from them so.

 

[markw]

Good idea. If you were to connect both top and bottom to the same amp, you'll have a nominal impedance of about 3.4 ohms. Not a good thing for most amps.

 

[markw]

Yea, Iv never see a speaker with two separate impedances. It's not like there is two seperate runs of the back of the speaker. Can anyone explain why there is two ratings ?

Perhaps they are "bi-amped" at the main unit.

 

[JOHN FICKEL]

Yea, thanks for the response.

 

[PENG]

Yea, Iv never see a speaker with two separate impedances. It's not like there is two seperate runs of the back of the speaker. Can anyone explain why there is two ratings ?

They could have meant the BL53 was 6 ohms and the BL56 was 8 ohms, i.e. WNBL53/WNBL56, 6/8 ohms.

 

[JOHN FICKEL]

Good idea. If you were to connect both top and bottom to the same amp, you'll have a nominal impedance of about 3.4 ohms. Not a good thing for most amps.[/

They could have meant the BL53 was 6 ohms and the BL56 was 8 ohms, i.e. WNBL53/WNBL56, 6/8 ohms.

yea you have to be right. But what I was curious about was, would it be like running a six and an eight ohm speaker in parallel On one side ? I guess every speaker would be that way. But it seems like every manufacture just puts one impedance Rating on the back.. Like for my RF-7, it just says 8 ohms compatible. But the horn and the 2. 10 inch Woofers, all have a separate impedance obviously because their separate speaker. It must be that his manufacture just didn't Rate one solid impedance, instead they just gave you two seprate ratings for the two separate drivers

 

[markw]

john, nobody here has any friggin' idea what these are. When it stated high and low impedances I ASSUMED there were two leads coming out, one for each part, thereby indicating a bi-amp situations. Some shelf systems do actually have this.

Now, if that were the case and he was to connect them to one amp, that wouldn't be LIKE connecting two speakers in parallel to the same amp. That WOULD BE connecting them in parallel to the same amp.

Of course , if there's only one set of leads coming out, then I have no idea what they are and I would treat them like a 6 ohm speaker.

Now, no offense, with your inability to grasp this simple concept of impedance and it's importance in this hobby, I must seriously question your abilities and/or experience as an audio salesman,

 

[JOHN FICKEL]

I understand impedance. It was a simple question. I didn't realize u had assumed there maybe two separate leads coming out of the back. I know Impeadance. I have been told by almost every manufacture, that the Impeadance rating on the back of a speaker means nothing! Everyone knows Impeadance constantly changes with frequency. I don't think I'm so smart I can't learn something new. Sorry I asked the question

 

[everettT]

Good rule of thumb : if the speakers have the leads soldered internally, run away.

 

[JOHN FICKEL]

I agree.

 

[markw]

I understand impedance. It was a simple question. I didn't realize u had assumed there maybe two separate leads coming out of the back. I know Impeadance. I have been told by almost every manufacture, that the Impeadance rating on the back of a speaker means nothing! Everyone knows Impeadance constantly changes with frequency. I don't think I'm so smart I can't learn something new. Sorry I asked the question

Then why did you say this?

Yes, The rated nominal impedance, on the back of the speaker, is usually the lowest point at which a speaker will go.

 

[herbu]

Then why did you say this?

I think this guy's presiding attribute is his enthusiasm. He is clearly interested in audio and has found a place to interact, learn and teach. He'll post 4 consecutive snippits to increase his post count. He'll state as fact something he thinks is right, or has heard is right, without verifying.

He has not realized how easily he can harm his own reputation, and to a degree the reputation of the site by giving bad advice. I'm still hoping he'll learn that enthusiasm untempered by wisdom is good for graveyards, rednecks, bloopers and "Dumbest" videos. Not so much for a respectable forum.

 

[aoluain]

guys, sorry about this but I should have mentioned they have 2 wires going into the rear board.
pics attached. I assumed the label would be enough to go on.
i have decided not to go with these speakers but hopefully the mystery can be solved!!
apologies again.

 

[PENG]

Now, if that were the case and he was to connect them to one amp, that wouldn't be LIKE connecting two speakers in parallel to the same amp. That WOULD BE connecting them in parallel to the same amp.

Of course , if there's only one set of leads coming out, then I have no idea what they are and I would treat them like a 6 ohm speaker.

I think you are right, take a look of the pic in the link below.

http://produto.mercadolivre.com.br/MLB-738973662-caixas-acustica-aiwa-modelo-sxwnbl53-novas-na-caixa-original-_JM

You can also download the service manual for the sxwnbl53/56 and the schematic does show separate outputs for the high and low frequency drivers.

Regardless, those speakers are more like ghetto blaster type, just higher end but still not suitable for real/separate receivers.