Palladium 879-584 speaker exchange

dubout

Member (SA)
I have a Palladium 879-584 I wanted to restore for a long time. After taking it apart, I made a hole in one of the midrange speakers ... I wanted to glue it but now I found small Quadral sattelites someone gave to me a while ago. Physically they would fit but I am unsure if the technical measures are compatible.

I understand that the original speakers with 3.2 Ohm can be swapped with the 4-8 Ohm Quadral speakers without damaging the amp? Would it improve or worsen the overall sound?

Also would I have to swap the small board from the original speakers to the Quadral speakers, too?
 

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floyd

Boomus Fidelis
I don't think the impedance is a problem but if you have a multi meter check the impedance at the speakers terminal to see the actual load. I would stay as close to the factory speaker as possible.
As far as the sound I'm not sure you will gain much but you never know until you try.
 

Superduper

Moderator
Staff member
Multimeters will measure ohms, not impedance, which is what speakers are rated at. You just need to understand that unlike DC ohms, speaker impedance will change with frequency. Frankly, going from 3.2 ohm drivers to 4 ohms won’t make an appreciable difference and your amps will be perfectly happy. Loudness is far more dependent on driver efficiency than ohms anyways, and a driver with 98db efficiency vs one with 82db will be night and day. As for sound, every speaker sounds different in each enclosure. Short answer, nobody knows. Longer answer; try it and see us the only way to know.
 

dubout

Member (SA)
Both answers are of great help, thank you. It‘s good to know I won‘t damage anything.

What about the resistor, does it have to be transfered to the new speaker, too?
 

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floyd

Boomus Fidelis
Both answers are of great help, thank you. It‘s good to know I won‘t damage anything.

What about the resistor, does it have to be transfered to the new speaker, too?
That board probably has filter caps and if it's on the original boombox speakers then you should probably use it with the new speaker.
 
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dubout

Member (SA)
Thanks guys, I will get back with the result. It might take a few months though because this is not the only project I am working on.