LDR Passive Preamps & Buffers
A few note-ables
Light Dependent Resistors
We do not use conventional volume control technology. Tortuga Audio uses photoresistor based light dependent resistors (LDRs) Not just different audio. Better audio. Hear the light!
Affordable High End Performance
For a little over $1k your system can achieve a level of performance that rivals high end systems that cost thousands of dollars more. One of the best values in audio today.
Many customers decided to sell their existing $10k+ world class high end tube preamps after auditioning our LDR preamps. Yes, they're that good.
No Gain - No Pain
Most audio systems do not need gain (volume boost) in the preamp. Tortuga Audio's LDR preamps provide excellent attenuation with little or no actual gain in order to minimize harmful manipulation of the audio signal.
Full Range Dynamics
No shortage of dynamics and punch here! Our LDR passive & active preamps deliver truly impressive bass plus clear, clean & balanced mid/highs with no grain or harshness.
Rather Do It Yourself?
Tortuga Audio also sell components and kits for those who enjoy the satisfaction of building their own gear while saving quite a lot of money in the process. We support the makers movement.
About Light Dependent Resistors
Our preamps use LDRs for attenuation (volume control)
What’s an LDR?
An LDR is an analog light emitting diode combined with an analog photoResistor in an integrated package
Even though LDRs pose unique challenges to the designer, we believe LDRs simply sound better than all other volume control technology
A Few Recent Articles
Tortuga Audio had a great time and a fantastic sounding room at the inaugural Florida Audio Expo in Tampa, Florida in February 2019. Here are some comments and pictures from that show. The show went off without a hitch, was well attended and the organizers can be quite proud of all the hard work that
A High Performance Stepped Attenuator Tortuga Audio is developing a variant of its LDR (light dependent resistor) based LDR.V25 Preamp Controller as a drop-in replacement for practically any stereo audio volume control potentiometer or stepped attenuator. We are calling it the LDRPot since it uses LDRs and is a direct replacement for a typical stereo
Tortuga Audio plans to release its new LDR300.V25 Buffered Preamp on August 28. The LDR300 is a remote controlled, singled-ended, active preamplifier that combines Tortuga Audio’s popular LDR (photoresistor) attenuation technology together with a powerful JFET output buffer to deliver robust sonics that will satisfy the most discerning audio enthusiast. …. Read More >>