LDR Active Preamp - does it exist?

The Burson has a 6db gain, although it isn't obvious from the literature. It also has no volume control, so you would continue to use the Lightspeed LDR.

It's called out here:

http://www.partsconnexion.com/t/Index/bur_buf160.html

And also implied by looking at the specs for maximum input voltage and maximum output voltage. Somehow it got more out than in, so it has to add it in between.

It is different than the Dodd Buffer Preamp which has no gain, does buffer, and has a volume control.

The only one I know of that's not $40k is the old Melos SHA Gold. There's one on listed here now if it hasn't been sold. I've had an LDR for years. Wouldn't swap it for anything. I'd change amps first. Also, you may want to check with Uriah Dailey on the DIY Audio forum to see if he can offer a solution.

Check out Hornshoppe's 'The Truth'. Active. No gain. Sounds astonishing.

Great idea, except gain is exactly what he's looking for.

Using Lightspeed, I can get the sound level at average 90 dB with high sensitive speaker 98 dB. The dial is near to max, position between 2 PM - 3 PM. Low volume tracks are the problem.

In anycase, I would like to optimize our system using the amps that I have in hand. It seems that these amps are not best choice. The main reason I am going with 845 output tube is the power 27 Watt that 300B SET can not provide. It seem low sensitivity defeats the purposes.

The Truth is an interesting concept. It does not seem to be popular in audiophile community.