Articles from robrob

  1. Headphone Power Calculator Spreadsheet

    Here's a Headphone Power Calculator spreadsheet: You input your headphones' impedance and sensitivity (in either dB milliwatt or dB volt and it calculates the other sensitivity value). It also calculates the power and current at 1 volt rms. Input a target loudness and it'll give you the power, voltage and current required to get there using your headphones. You can also input an amplifier's Vrms rating and it'll give you the max headphone loudness and the power required to get there.  ...
  2. Headphone-to-Speaker-Amp Interface With Switched XLR + 1/4" TRS + 1/8" TRS

    The Robinette Box   Front panel features balanced 4-Pin XLR, 1/4" & 1/8" single-ended headphone jacks, 'Amp Mode Switch' and optional oscilloscope out BNC connectors.   The Robinette Box© is a headphone to speaker amplifier interface box which will connect just about any headphone with any amp (tube, solid state, balanced, single-ended). It's designed to electromagically match your headphones to a speaker amplifier's speaker output. Jump down to the Instructionsto see how the box...
  3. Headphone Resistor Network Calculator

    I have created a JavaScript webpage calculator and Excel spreadsheet that will help you optimize a headphone resistor network interface for your headphones and your speaker amplifier.  Instructions A headphone resistor network interface helps to electrically match a pair of headphones to a speaker amplifier's speaker terminals. The resistor network used on this page is the most commonly recommended headphone-to-speaker-amp resistor network interface. 1. Input your Headphone's Impedance...
Loading...