Audio Buffers

ldr3.V25 passive preamp - black anodized front - side view

Tortuga Audio Releases LDR300.V25 Buffered Preamp

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 >>

passive vs active preamps

Active vs Passive Preamp Debate

In this article we take a closer look at what’s going on behind the active vs passive preamp debate and hopefully develop a better understanding so we can all make wiser choices. …. Read More >>

6922/6DJ8 tubes for tube rolling

Tube Rolling The Tortuga Tube Buffer

Designed around the excellent current production 6H30 tube, we’ve concluded that the TPB.V1 Tube Buffer is also compatible with the entire family of 9-pin 6DJ8 / ECC88 / 6922 / 7308 tubes which opens up a big wide world of tube rolling possibilities. And while the 6H30 is a great sounding tube for the Tortuga …. Read More >>

Tortuga Audio TPB.V1 Tube Preamp Buffer

Tube Preamp Buffer Released March 2017

Update – March 1, 2017 – The TPB.V1 Hybrid Tube Preamp Buffer has been released. A review of the TPB.V1 can be found here. …. Read More >>

simplied schematic of Tortuga Audio's tube preamp buffer

Is A Preamp Buffer Right For You?

What Is A Preamp Buffer? To answer the question “What is a preamp buffer?” let’s start with a preamp that has no buffer,  i.e. a passive preamp. At a minimum, a passive preamp provides volume control (attenuation). Optionally, a passive preamp can also provide input switching between multiple connected sources. Passive preamps control volume by …. Read More >>

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