Resistor Impedance Matching Question

[seaneee]

Not sure if this belongs here or in DIY....

I'm working on crossovers for Realistic Electrostat 2s and need to replace the resistors (speakers, not power supply). I'm having a hard time finding exact replacements in my stash. I'm trying to do this with what I have vs. ordering — the shipping far outweighs the cost of the resistors.

The first resistor I need is 2w 25ohm. What I have:

• 2w 27ohm
• 2x 2w 12ohm in edit: series
• 2x 2w 12ohm + 2w 1ohm edit: series

The second is 1w 6ohm, I have:

• 1w 6.2ohm with a fudge factor of 2%. Don't see this being an issue, but please chime in.

I'm still very much learning so any help would be much appreciated...

 

[WaynerN]

That would be 2 X 12 ohms in series = 24 ohms.......

 

[elnaldo]

! don't know the circuit, but I think 2 x 12 ohm in series (not parallel), will double the wattage rating of the resistors, and also I guess it's close enough.

The same with the 6.2, I'd use it in place of the 6 Ohm if the wattage is the same or exceed the specs.

Is your resistors are too small in size compared to the originals, check the working voltage of the circuit and the voltage rating of the resistors.

 

[seaneee]

Sorry for the omission- all the wattages match the originals.