Paladin79
Previously MOT: Cables For Less
LOL the word meter comes from the Greek word metron meaning to measure. It is hard to use a meter and not measure something.
Anyway the meters measure current and I believe the Crack puts out around 333 mw at 300 ohms with clipping at around 10v rms. Since current equals power divided by voltage the meter would show about .03 amp, safely within the range of the meter. Impedance does vary with frequency and you can probably use headphones down to about 100 ohms with this amp so I figured a .5 amp current range would be a good place to start. I can adjust the meters down to a .1 amp range if need be. YMMV but this is what I considered when looking around for VU meters.
Anyway the meters measure current and I believe the Crack puts out around 333 mw at 300 ohms with clipping at around 10v rms. Since current equals power divided by voltage the meter would show about .03 amp, safely within the range of the meter. Impedance does vary with frequency and you can probably use headphones down to about 100 ohms with this amp so I figured a .5 amp current range would be a good place to start. I can adjust the meters down to a .1 amp range if need be. YMMV but this is what I considered when looking around for VU meters.