Search:

Received a pleasant surprise over the holiday break.
Was notified that our LDR3.V2 Passive Preamp made The Absolute Sound's Editors' Choice Awards list for 2016.
Good way to start the New Year. ...

Check out the review of our LDR3.V2 Passive Preamp in the December, 2015 issue of The Absolute Sound.

See the review summary below and here's a link to the review itself:...

A very nicely done video review of the LDR3.V2 Passive Preamp by Ron Brenay at NewRecordDay.com
I think Ron is on to something with his creative video format approach to audio reviews....

Several customers have run afoul of the Adjustable Impedance feature - at least as it's currently designed/controlled - wherein they accidentally switch from the default impedance setting (#1 - 20k)...

Sometimes the point of all the discussion and info here kind of gets lost. So here, stripped down, are the top 5 reasons to choose LDR Passive Preamps to improve the performance of your stereo audio...

As you may know, Tortuga Audio not only manufacturers plug-n-play preamps but we also sell core parts for the DIY (do-it-yourself) audio enthusiast.

We get a large volume of inquiries from the...

Thanks to one of our customers, a Tortuga LDR preamp made it to the AXPONA audo show in Chicago this past weekend even though we were not able to attend this year ourselves

And it got heard!
...

Latest feedback from one of our preamp owners posted here with permission.


Interesting on a couple accounts. Another instance of our LDR preamps: 1) providing better volume control than...

Annnnddddd....we are back online with our new website!! http://www.tortugaaudio.com

We were down for about 3 days to overhaul and update most everything. What a panic!
Probably still some...

Subscribe to our newsletter and get 10% off on all purchases made going forward in 2015. Simply use the same email address you used to subscribe when purchasing anything through our website. Use the...

Here are pics of our latest offering, the LDR1.V2B. A single input, dual output balanced passive preamp. This unit sounds fantastic and since it's a single input design there is no input switching...

After a ton (perhaps a few tons) of work, we are pleased to finally release the latest version of our LDR preamp controller firware that was developed as part of the V2.1 version of the LDR3x Preamp...

Thinking about getting an LDR passive preamp?
Want to keep the costs down?
Willing to go the DIY route?
But don't want to search high and low for all the parts plus enclosure?
Consider the...

In January 2015 we released our latest LDR passive preamp, the LDR3.V2. It's a reintroduction of our earlier LDR3 model but with new front/rear panel/look, dual display modules (same as our bigger...

Here are some pics of our latest passive preamp, the LDR3.V2. Singled-ended 3 inputs plus 2 parallel outputs. Linear regulated wall-wart PS (115 VAC main only).
It's a re-release of our earlier...

We expect to release our new line of both unbalanced and balanced LDR passive preamps between July 31st and August 15th.

When released, the LDRx will replace our existing LDR3 and LDR6 offerings...

Our very first iteration (version 0) of LDR preamps followed this approach of simply matching series/shunt pairs of LDRs and then accepting whatever total input impedance that fell out as control...

I believe the letter was from the UK NMO (National Measurement Office) which is the UK market surveillance authority responsible for enforcing the RoHS regulations with the UK.

This affirmative...

We often receive inquiries similar to this one. If you're not ready to do surgery on your existing pre (Croft in this instance) then you can try putting the LDR both in front of the Croft or after...

I'll even pipe in on this one since it's a fair question and nearly nearly all of our existing customers currently have non-self-calibrating designs. You can expect very decent performance from an...

1/ they are impracticable for stereo use as they cannot make matching pair.
2/ if you do spend loads of time matching pairs then they drift with age and cock it all up again
3/ they are prone to...

In the case of our most recent ldr3x.v2 board, the input impedance is mostly fixed while the output impedance is typical of a nominal 20k potentiometer which is not fixed. More info on this including...

I concur with Chris's statement on the subject.

I looked into ROHS with respect to LDRs a while back and found ambiguous guidance at best. I contacted the LDR manufacturer (Silonex - now Advanced...

Hello. My name is Morten Sissener and I live near the gulf coast in southwest Florida in a town called Cape Coral. Originally from Norway, I've lived almost my entire life in the US near cities like...