Audio wizard is a collection of audio related tools. It's very much a work in progress and will be updated frequently.

Requests, bugs, etc you can contact me via the support menu. Currently here is a list of what's available:

Acoustic power
Air absorption
Amplifier power required
Bracing
Ceiling speaker coverage
dB to Volts
Delay and frequency
Inverse square law
Ohm's law
Port volume
Power ratio
SPL (sound pressure level)
Volume
Subwoofer cone area
Thermal noise
Voltage ratio
Vent length
Speaker impedance calculator
Frequency to note
Time stretch
Loop length to BPM
Frequency wavelength

Step 1. Download Audio Wizard Pro - Calculators Mod (Paid for free Free purchase) APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Audio Wizard Pro - Calculators Mod (Paid for free Free purchase) APK will begin installing on your device. Simple.

Step 1. Download HappyMod APK file on HappyMod.com.
Step 2. Once it's downloaded, open Downloads, tap on the APK file, and tap Yes when prompted.
Step 3.Search Audio Wizard Pro - Calculators Mod, click Download.
Step 4: You can download 100% working mods on HappyMod with one click.