Amplifier Load Graph

How apparent power, current draw, and input-power reference lines describe amplifier demand.

Direct answer

The amplifier load graph shows apparent power demand over frequency and can optionally show RMS current draw.

What it measures

• Apparent power in VA over frequency.
• Optional RMS current draw series.
• Input power reference lines for the visible simulations.

Why it matters

• It gives a more realistic view of amplifier stress than watts alone.
• It connects impedance behavior to current and apparent power demand.
• It helps compare designs that have similar SPL but different electrical loads.

How to read it in 00 Simulator

• Inspect peaks and low-impedance regions alongside the impedance graph.
• Enable current draw when amplifier current capability is the concern.
• Use input power reference lines to separate real demand from the configured drive level.

What good, warning, and bad usually look like

Good

The apparent power and current demand are within the intended amplifier capability.

Warning

Demand rises sharply in a narrow region that may matter at high output.

Bad

The design requires an amplifier load the real system cannot supply safely.

Common false conclusions

• VA is not the same as acoustic output.
• A design with lower apparent power is not automatically better if it misses output goals.
• The graph assumes the configured driver, wiring, and series resistance are accurate.

App behavior notes

• The UI graph id is `amplifier-load`; the internal graph key is `apparentPower`.
• The optional current series uses the internal `currentDraw` value.