Recent Review by

Audiophilia Review of the LDR1B.V25 Balanced Passive Preamp & TPB.V1 Tube Preamp Buffer

Tortuga Audio LDR3.V2 Passive Preamp - frontal view
TPB.V1 Tube Buffer - Rear View
"Impeccable clarity, transparency, and neutrality with a dash of smoothness (that made listening non-fatiguing)."
"... the Tortuga Audio LDR1B.V25 Passive Balanced is clearly among the very best—perhaps even the best—I have ever heard in my system.If you already have volume control built within your source and would like to explore an elegant/tasteful dash of tube euphonies, then by all means try out adding in the TPB.V1 to your system. And if in need of an active preamp with at most 2 inputs, check out the LDR1B.V25 together with the TPB.V1 buffer; they make a wonderful pair. As in Happy Together, by the Turtles, the two components indeed are happy together.Highly recommended."

Closer To The Sound of Music

Your search for the perfect preamp for your system could be over

customer reviews

Tortuga Audio preamp owners recently sent us these unsolicited comments...

"What an experience! Truly the best sound I've ever heard in my system. A layer of "mush" has disappeared.... More details and less harshness, especially in mid-upper-high range...  It is absolutely marvellous at low's all in perfect balance from 1 through 99 with a beautiful room experience, width and depth in the music."
"I am a classical musician, aged 68. In the audio hobby maybe around 30 years. Have heard no end of preamps and passives. Certainly 100s, maybe more. Yours is the best sounding - the closest to the sound of music."

By A Different Path

To make a better sounding preamp we took a different path

Our preamps don't use conventional volume control hardware.
  • No potentiometers ("pots")
  • No stepped attenuators (switched resistors)
  • No transformers
Why not? Because they don't deliver the best audio performance.
Our preamps use "light dependent (photo)resistors" or LDRs. Photoresistors are not new technology but they pose unique and difficult challenges to audio engineers. That is why preamps typically use conventional volume control hardware. We took on those challenges and solved them. Why? Because we wanted to design a better sounding preamp. So we did. 
light dependent resistors (LDRs)

A few notables

Our Most Popular Model

LDR3.V2 passive preamp - black anodized front panel

LDR3.V2 Passive Preamp | $1195

  • Superior audio quality | light dependent resistors
  • Single ended stereo | unity gain passive preamp
  • Cardas RCA jacks | 3 inputs | 2 output
  • Dual channel display (blue)
  • Fully IR remote controlled | Apple remote
  • Firmware/feature updates via USB port
  • 12 V trigger out
  • Front panel
    • Silver or black brushed anodized aluminum
    • Lacquered carbonized bamboo
  • Upgraded signal hookup wire (point to point)
    • Neotech ultra-pure continuous caste 26 AWG solid copper

Have Questions?

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