[Radio Wrangler]

The output impedance of the amplifier has no direct importance, so long as it's reasonably low.


But it does have an indirect effect. Designers of crossovers have to pin the tail on the donkey and pick a value they assume their speakers are going to work with. This then has an effect on how well they equalise the responses of their drivers (oh and damping factor just took another hit in the midrange and tweeter from the resistors they added to pad their relative sensitivities to match)

So it makes sense to get the amplifier output impedance into the ohm region, but going any further yields very rapidly diminishing returns.


I had a look at those boutique resistors and the others on the site. Not one had a spec for excess noise.....

David