PHONO BLOCK Refined
The PhonoBlock was introduced almost 10 years ago. It performs
beautifully and continues to please music lovers all over the world.
Then came an opportunity to make it even better.
The circuit remains essentially the same. Improvements focused on
providing a better environment to more fully realize its potential.
The best environment for delicate analog audio signals is LESS
environment. A compacted area for the circuit with minimal distance
between components is a big advantage. The musical signal will have the
tightest, shortest and purest connection from one component to the next.
Another performance necessity is a low impedance, low noise power
source for the amplifiers. That would be a bank of multiple film and
electrolytic capacitors. Ideally, they would be paralleled with very wide
copper traces and a very short distance from the amplifiers.
That´s a challenge. How to have a compact layout for the signal path AND
a large area for multiple power supply capacitors AND shortest distance.
Fortunately, there is an alternative to compromise. ONLY signal path
components are placed on the top side of the circuit board. With no power
supply capacitors on the top side, and a disciplined layout strategy, the
signal path is optimally short and direct. A large bank of power supply
capacitors is located on the bottom of the circuit board. All of the copper
area on the bottom side is dedicated to forming a robust power plane that
is located right under the amplifiers.
The tighter signal path gives uncluttered purity and the robust availability
to power gives effortless ease to dynamic expression. These
improvements bring the listener even closer to the music.