passive preamp

Humming Along To The Pin 1 Problem

The original title to this article was going to be “The balanced audio “pin 1 problem” visits Tortuga Audio and how we hummed along with it – and then stopped.” Too much? I thought so too. There’s a particular recurring problem in audio design that’s such a perennial PITA that it even has its own website:  pin1problem.com That, I would argue, is some accomplishment. You would think that a […]

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LDR1B.V2 balanced passive preamp

LDR1B.V2 Balanced Passive Preamp

Single Input Balanced Passive Preamp March 15, 2015 – Tortuga Audio is pleased to release the LDR1B.V2 Balanced Passive Preamp. The LDR1B.V2 is the latest model in our LDR (light dependent resistor) based passive preamp product line and is our second model offering attenuation for balanced audio. Unlike its more expensive big brother, the LDRxB, the LDR1B.V2 has only a single XLR input with dual (parallel) XLR outputs. It uses the

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adjustable impedance matching

Adjustable Impedance In Tortuga Preamps

Adjustable Impedance March 1, 2015 – Tortuga Audio has released a major firmware update that adds adjustable impedance it its LDR Passive Preamp product line. Adjustable impedance allows the user to change the input impedance of their LDR passive preamp. This firmware update also includes an upgraded auto-calibration algorithm resulting in improved sound stage and stereo imaging. The Adjustable Impedance feature allows the user to set up 5 different

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LDRx/LDRxB Passive Preamp - Front VIew

Tortuga Audio October 2014 Newsletter

LDRx & LDRxB Passive Preamps Now Available  On September 1st we officially released the new LDRx/LDRxB passive preamps to manufacture. The LDRx is a single ended passive preamp with 3 inputs (optional 4th & 5th) and 2 outputs. The LDRxB is a balanced version with 3 XLR inputs, 1 RCA inputs (up converted to balanced internally) plus 2 XLR and 1 RCA output. The LDRx and LDRxB are our

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LDR3x Version 2 circuit board design

LDR3x.V2 Preamp Controller Board Coming Soon

Version 1 Sold Out & Discontinued As of 3.2.14 we are sold out of the Version 1 LDR3x Preamp Controller Board. Version 1 has been discontinued and thus we are no longer accepting orders for the V1 board. Version 2 Availability & Pre-orders The original LDR3x is being replaced by the soon to be released LDR3x Version 2 (LDR3x.V2). We are targeting release of the LDR3x.V2  by April 1st the first

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LDR3 Passive Preamp - Front, side and rear views

LDR3 Replaces LDR1 | LDR6 Price Reduction

LDR3: Based on input from current and prospective customers, we are retiring the LDR1 effective immediately and replacing it with the LDR3. The LDR3 is our “Goldilocks” passive preamp. Not too few inputs like the LDR1 and not too many like the LDR6. Just right with 3 inputs & 2 outputs. Pricing: We are  pleased to be offering the LDR3 at the same price as the LDR1 – $1195.

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LDR3x DIY preamp controller board

Tortuga Audio Releases LDR3x Preamp Controller Board for DIY Community (Aug 8th update)

As a follow-up to our original post below, we wanted to share some unsolicited feedback from a recent LDR3x customer. Note that the LDR3x board is our second generation LDR preamp board design that builds on the success of the original LDR1/LDR6 passive preamps. A pair of LDR3x boards will be the twin beating hearts of our  upcoming LDR3B Balanced Passive Preamp product. “Today I received the LDR3x board and

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ldr6 passive preamp front view

6moons Reviews Tortuga Audio’s LDR6 Passive Preamp

I’m pleased to announce that 6moons.com has published a very favorable review of our LDR6 passive preamp. It’s quite an extensive review including background on its development and an in depth description on what goes into the building of each of our LDR preamps. My favorite statement by the reviewer: The Tortuga Audio preamp equaled or surpassed all basic performance parameters against any contenders I had in house, passive,

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mono LDR passive preamps

Tortuga Audio Goes To Harvard With Dual Mono Preamps

The best part of being in the high value audio design and manufacturing business is working with customers who have more interesting ideas than you do. A recent example is when a full professor at Harvard University contacted us and asked if we could provide a pair of mono passive preamplifiers for his home audio rig. Dual Mono Preamps? Yes, mono preamps. As in a two single channel LDR

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