Live sound tools

For front of house, monitors, installs and the church or school PA: the numbers you need before you fly a box or power an amp.

Speakers and amplifiers

Speaker SPL calculatorHow loud at the back row, and how many watts it takes. Speaker impedance calculatorSeries, parallel and the amp's minimum load. Speaker delay calculatorTime-align delays, fills and subs. 70V / 100V speaker line calculatorTap load, amp headroom and wire loss. Ohm's law and power calculatorWatts, volts, amps and ohms from any two.

Signals, wiring and streaming

Audio connector pinoutsXLR, TRS, inserts, speakON, RJ45, DMX and DB25. Audio level converterdBu, dBV, dBFS and volts. Mic sensitivity converterOutput level and preamp gain for any mic. Loudness targets (LUFS)Livestream and broadcast levels.