Headphone Amps · JDS Labs
Objective2 DIY Kit Headphone Amplifier
DIY kit requiring soldering. Gain is 2.5x (~7.96 dB) and 6.5x (~16.26 dB) selectable. Max output is 613 mW into 33 ohms. THD at 1 kHz into 150 ohms: 0.0016%. Noise: -105 dB ref 400 mV. Crosstalk: -65 dB at 15 ohms. No enclosure, batteries, or power adapter included. Power via battery (2x 9V NiMH) or 14-20VAC adapter. Input and output jacks are 3.5mm TRS.
Inputs
lineTRS
Input impedance: Unknown(impedance bridging check skipped)
Sensitivity: Unknown(gain staging check skipped)
Max input: Unknown(overload check skipped)
Outputs
headphoneTRS
Output impedance: 0.54 Ω
Max Vrms: Unknown(headphone drive check skipped)
Max current: Unknown(headphone drive check skipped)
Gain: Unknown(system gain structure check skipped)