Legacy Products (out of production)

LDR3000x.V3 High Performance Passive or Active Preamp
Price range: $1,495.00 through $3,295.00
The LDR3000x.V3 line has been discontinued as of July 2022 due to changes in the company business plan going forward. Tortuga Audio continues to develop, manufacturer and supply its core LDR stepped attenuation and preamp controller technology to other OEMs and the DIY community.

The LDR3000x.V3 is a flexible high performance, remote controlled, LDR (light dependent resistor) preamp available in 9 different configurations including as a passive, as an active solid state or as an active tube type preamp. Each type can be ordered as single-ended only (3 in | 2 out | RCA), balanced only (3 in | 2 out | XLR) or mixed RCA/XLR (6 in | 4 out). Each configuration can be remote controlled (Apple remote) or controlled from the front panel (rotary encoder) with a high contrast, white-on-black, interactive menu driven OLED display.

The sound quality of the LDR3000x.V3 is exceptional whether you opt for the passive or one of the active configurations. With 9 different configurations to choose from and the clear, natural proven sound of LDR attenuation, you will not be disappointed.

Select options This product has multiple variants. The options may be chosen on the product page
LDR3000T.V25 High Performance Tube Preamp
$2,995.00
The LDR3000T.V25 is no longer being produced and has been replaced by the LDR3000x.V3 High Performance Preamp which is available with an updated yet similar tube configuration at a comparable price.
- Remote controlled tube preamp with 3 XLR & 3 RCA inputs
- 100 step LDR attenuator
- Zero/low gain triode input/gain stage
- Class A solid state JEFT output stage/buffer
- Hi resolution OLED visual display
If you’re looking for high performance preamp we don’t believe you’ll find many preamps that sound better than the LDR3000T. Don’t take our word for it. Go ahead, buy one, and you’ll have 30 days to try it at home in your own system. If you’re not happy with the LDR3000T you can return it within 30 days for a 100% refund less your cost for return shipping.
Read more
LDRxB.V25 Balanced Passive Preamp
$2,695.00
Note: This preamp model is no longer available and has been replaced by the LDR3000P.V25 High Performance Passive Preamp

The LDRxB.V25 is a high performance balanced passive preamp that combines Tortuga Audio’s advanced LDR (light dependent resistor) attenuation technology with elegant contemporary styling designed to satisfy the most demanding audio enthusiast. The LDRxB accommodates up to 3 balanced XLR inputs and a single unbalanced RCA input. Dual (parallel) balanced XLR outputs are provided along with a single RCA output.

The LDRxB.V25 delivers clear, articulate and honest sound with a dead quiet background together with satisfying dynamics and surprisingly powerful bass.

If you haven’t experienced a high performance balanced passive preamp, find out what your’re missing with Tortuga Audio’s LDRxB.V25

Read more
LDRxB Balanced Passive Preamp
$2,695.00
The original LDRxB model is no longer being offered and has been replaced by the updated LDRxB.V25.

The LDRxB is an audiophile grade balanced passive preamp that combine advanced LDR (light dependent resistor) technology with elegant contemporary styling designed to satisfy the most demanding audio enthusiast. The LDRxB comes with 3 balanced XLR inputs and dual (parallel) balanced/XLR outputs. The LDRxB also accommodates a single RCA input and provides a single RCA output.

Read more
LDR3000P.V25 High Performance Passive Preamp
$1,995.00
The LDR3000P.V25 is no longer being produced and has been replaced by the LDR3000x.V3 High Performance Preamp which is available with an updated V3 controller and is available configured as a passive preamp at a comparable price.
- Remote controlled passive preamp
- 3 XLR & 3 RCA inputs | XLR/RCA outputs
- 100 step LDR attenuator
- True unity gain passive with dead quiet background
- Hi resolution OLED visual display
If you’re looking for high performance passive preamp we don’t believe you’ll find many passive preamps that sound better than the LDR3000P. Don’t take our word for it. Go ahead, buy one, and you’ll have 30 days to try it at home in your own system. If you’re not happy with the LDR3000P you can return it within 30 days for a 100% refund less your cost for return shipping.
Read more
LDR1B.V25 Balanced Passive Preamp
$1,895.00
Note: This preamp model is no longer available and has been replaced by the LDR3000P.V25 High Performance Passive Preamp.

The LDR1B.V25 Balanced Passive Preamplifier is a remote controlled balanced audiophile grade passive preamp (attenuator). The LDR1B provides true balanced attenuation with independent attenuation of both phases in each stereo channel. Also, being a true passive preamp, the LDR1B is a unity gain preamp with no amplification or buffering.

The kit can now be ordered either with a single input & dual outputs or with dual inputs & a single output.

The LDR1B.V25 is an updated version of our popular LDR1B.V2 model and its design closely parallels our single-ended LDR3.V25. The updated LDR1B incorporates our new and improved V25 preamp controller that uses LDRs (Light Dependent photoResistors) for exceptional audio performance.

Enthusiasts who value a dead quiet preamp with a deep dark background between the notes, exceptional transparency, and pleasing dynamics, will find the LDR1B.V25 to be a very satisfying preamp rivaling many high end peamps at a fraction of the cost. And it comes with a simple remote control so you can relax and enjoy your music in comfort from your favorite listening spot.

The LDR1B.V25 comes in black or silver anodized front panel and uses high quality Neutrik XLR jacks with Neotech OCC solid copper point-to-point hookup wire.

Select options This product has multiple variants. The options may be chosen on the product page
LDR1B.V2 Balanced Passive Preamp
$1,895.00
The V2 model has been discontinued and replaced by the updated LDR1B.V25 model which can be found here.

The LDR1B.V2 Passive Preamplifier is a fully balanced audiophile grade passive (unity gain) single input, dual (parallel) output preamp/volume controller designed around Tortuga Audio’s third generation light dependent resistor (LDR) technology. The LDR1B.V2 is a single input, dual output balanced version of the LDR3.V2.

Select options This product has multiple variants. The options may be chosen on the product page
LDRx Passive Preamp
$1,795.00
The LDRx is an audiophile grade passive preamp that combine advanced LDR (light dependent resistor) technology with elegant contemporary styling designed to satisfy the most demanding audio enthusiast. The LDRx comes standard with 3 RCA inputs and dual (parallel) RCA outputs. An optional 4th and 5th input are also available.

Read more
TPB.V3 Tube Buffer
Price range: $1,495.00 through $1,695.00
Due to ongoing supply chain challenges, we have suspended production of this buffer, and are not taking new orders currently.

The TPB.V3 is a high performance hybrid buffer that combines a tube input stage with a solid-state JFET output stage to deliver robust dynamic sound with just the right amount of tube euphonics to breath new life into your music and your existing audio gear. Don’t be surprised if you find yourself enjoying your music collection all over again…and again!

The TPB.V3 is an ideal addition to both passive (Tortuga Audio LDR passives) and active preamps as well as any DAC or other audio source with its own volume control. The TPB.V3 comes in both single-ended (RCA) and balanced (XLR) models.

This buffer is built to order so please allow 5-10 days from order to ship date.

The TPB.V3 enclosure is identical to the LDR3000x preamp series shown in the pics here except the front panel will not have a knob or lens but will instead have a centered blue status LED. Images of the actual buffer enclosure will be posted when they become available.

Select options This product has multiple variants. The options may be chosen on the product page
TPB.V1 Tube Preamp Buffer
Price range: $1,495.00 through $1,695.00
The TPB.V1 has been discontinued is replaced by the newer TPB.V3 model.

The TPB.V1 is a high performance non-attenuated hybrid tube/solid-state active line stage that serves as an ideal addition to both passive (Tortuga Audio LDR passives) and active preamps as well as a DAC or other audio source with its own volume control.

Use the TPB.V1 to upgrade your system’s performance while keeping your existing passive or active preamp gear. We are confident you’ll be pleasantly surprised.

Sporting a lively hybrid triode tube input stage and solid state JFET output stage, the TPB.V1 delivers powerful and dynamic sonic performance with just the right amount of tube euphonics to breath new life to your music. Don’t be surprised if you find yourself enjoying your music collection all over again…and again!

Designed from the ground up for balanced audio, two triode tubes are employed with each tube dedicated to a stereo channel. Single ended systems benefit from the same dual tube design. The TPB.V1 is available in both balanced (XLR) and singled-ended (RCA) models.

The TPB.V1 can be ordered with numerous optional upgrades. This buffer is built to order so please allow 5-10 days from order to ship date.

Select options This product has multiple variants. The options may be chosen on the product page

Review Cart