Should I use Impedance 4 or 8?


Maybe someone out in Audiogon land can definitively answer a basic impedance question for me.I own Klipsch Lascalas paired to a Raven Audio Blackhawk. Obviously they are rated as 8 ohm and the Raven provides both 4 and 8 ohm taps. The impedance tests on Lascalas show the impedance going very low at certain frequencies. (Like 3 at some frequencies) I've tried the 4 ohm taps which does squeeze a tad of hum out of the tunes but it seemed flatter and duller.Any advice? Will I damage my amp? Why the downgrade in dynamics at 4 ohms?

allears4u

Try them both for a day or so, whichever one you like best. There is no right or wrong way.

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Any chance you contacted Raven Audio to just see what they say ??

I have had Raven Audio since 2019 and have been a very happy customer with them responding to every question I have asked..

Hope you enjoy the Black Hawk , I started with that for month then ended up with Osprey for 5 years now have Reflection with Corvus Speakers and luv the sound.

As you know, that lower-imp. tap is reserved for A+B, speakers connected in parallel or the speaker with lower nominal impedance. A good, issue-free amplifier should not deliver drastically different performance between two taps. When connected to 8 ohm rated speakers, the 2-3 ohm tap on my Parasound NC2125 actually generates less heat and performs more effortlessly than the 4-8 ohm tap.

Maybe this answers it but I'm still very confused about four versus eight ohms.

@viridian  does a great job in his second paragraph and the second paragraph has a lot of information in it.  Maybe some further clarification on this important paragraph. Thank you.

i Use the four ohm from my amplifier because I hear things may sound better when those ranges are explored by my speakers. Speakers tend to very quite a bit in the four and eight areas and this adds to the confusion in my tiny mind.