LDR | light dependent resistor

Learn about how LDRs work and how they are used in audio volume control.

Tortuga Audio preamp owners can initiate self-calibration of their installed LDRs on demand in order to maintain optimal performance and initialize any new replacement LDR.

Tortuga Audio's LDR preamp attenuators & controllers have the unique ability for users to change their input impedance to optimize their performance.

Tortuga Audio LDR stepped attenuators allow for user adjustment of input impedance from 1k-100k to optimize preamp performance.

LDRs can fail yet are easily identifiable and replaceable with socketed plug-in LDR modules.