Passive Preamplifier

A chain in one audio system is commonly consist of a source, pre-amplifier, power amplifier, and a pair of speakers.

Especially between the pre-amplifier and power amplifier, most owners demanding more simple setup like using only an integrated amplifier. This integrated amplifier is including variety of input selection and a volume control and a pre-amplifier circuit inside.

For the purest audiophile, the coloration from the pre-amplifier is avoided. That is why they prefer only using a power amplifier, minimizing extra components that can cause the coloration from it.

With this in mind, they are prefer to use a passive preamplifier to connect to the power amplifier.

Reisong A10 Single Ended Tube Vacuum Amplifier (Part 3) High Bias 6L6

In this part 3 of the Reisong A10 single ended vacuum tube amplifier, I will share the upgrade progress to make this amplifier sound better by replace all the vacuum tubes and increase the bias on them.

On the previous upgrade, I have changed this amplifier configuration from ultra-linear to triode. The triode is well known for better sound but has lower power output compare to the ultra-linear. This lower power output will become an issue if the speakers connected to this amplifier is having low sensitivity. But because this amplifier is intended to use for balanced headphone amplifier only, so the power output is not become my concern.

This amplifier is having so much potential, so keep reading for this final progress of this amplifier upgrade.