# CANTA 0.3.1

## Integrated and stereo power amplifier

**The power amplifier no longer trips OVER CURRENT when it is switched on.**
Turning the power supply on charges the large capacitors on the power-amp boards,
and that brief rush of current was being read as a fault, so the unit went
straight to the over-current alarm on every power-on. For the first second after
the power supply switches on, the current is no longer judged. The speakers are
still disconnected for that whole second, and the over-temperature protection
stays active throughout.

Each power-on now records the size and length of that inrush in the console log,
so the one-second allowance can be tightened from real measurements.

**The current limit can now be set up to 20 A**, and is 20 A by default. The
Integrated and the stereo power amplifier use the same power-amp boards and share
the same limit. It can still be lowered in the CANTA utility, which previously
would not go above 12 A.

A unit that is already in use keeps the limit it has stored. To use the new
limit, set **PA Max Current** in the CANTA utility after updating.

## Display and front-panel LED (every model)

**The display no longer flickers on LOW brightness from cold.** LOW is slightly
brighter than before, enough to stay steady on a cold unit. MED is a little
brighter too, so the three levels are still evenly spaced. HIGH is unchanged; it
was already as bright as the backlight goes.

**The front-panel LED is dimmer.** HIGH is now what MED used to be, LOW is a
touch dimmer, and the new MED sits between them.

## Notes

Settings are preserved across the update. Other than the current limit above, no
configuration changes are required.