Sensitivity question

You seem to be mixing concepts. "hard to drive" is usually reserved for speakers with very low impedences in certain frequency bands that need very high current. Not the same as sensitivity

Low sensitivity needs more watts of power, but isn’t necessarily hard to drive.

High impedence means less amps required and generally requires less current for the same watts.

Now if you’re looking for a speaker to pair with an SET at low wattage, the only thing you really need to look at is sensitivity. Then check that it isn’t one of the "problem" speakers that has impedence dips. 4 ohm or even 3 ohm is fine for most amps (the amp manufacturer will warn you if it is designed for 8 ohm only). Infinity speakers, especially the Kappa’s are known to have very low impedence dips and thus require huge currents and are very "hard to drive’. Lesser amps tend to fry.

If you're trying to match to a 23 wpc amp, you might look for 90 and above but 88 may work.  Do you listen loud?  Check that the 88 is not a "problem" load.  

Jerry

It will work fine just will sound small and have limits on peak SPL. After all, you selected a small speaker and lower power. You picked your limitations.

Your 23wpc class A amplifier should have no problem driving a 10 ohm speaker. How loud the experience is dependent on room size and distance one sits from speakers. 

@johnk +1

Mike

@bluorion Wrote:

 

Sensitivity question

See article below:

Mike

https://geoffthegreygeek.com/understanding-speaker-sensitivity/