Impedance curves on Cabs

[funky8884]

Hi everyone,

I was wondering about what a ''Impedance Curve'' is ?

Is it the Impedance of a speaker changing in relation to volume or frequencies ? or something else ?

The reason I ask is that I am wondering if certain types of cab/speaker design are better suited to Tube/Valve amps ?


thanks for any help

[Bill Fitzmaurice]

Impedance is not a constant figure, it changes with frequency, ranging on average (with an 8 ohm cab) from 5 to 50 ohms. A sealed cab has a single impedance peak, a ported cab two impedance peaks. By and large tubes prefer lower average impedance loads, which is what sealed generally provides.

[funky8884]

Thanks Bill

[xgsjx]

Who are you calling a tube?!