Core Line Tube Preamplifier

A tube line preamplifier with an unusual design

Rugged stainless steel chassis.
High quality UI transformer and components.
Input selector for PHONO, CD, TUNER with the ability to select between FULL BALANCED
or UNBALANCED operation with a switch on the front panel.
Two switchable rotary VOLUME controls (LADDER mode 24 STEPS) one for each channel.
The ability to select between FULL BALANCED or UNBALANCED input and output with
a switch on the front panel.
The ability to select between NORMAL and REVERSE output operation.
Two LUNDAHL transformers for each channel, one LL1527XL for the input and one
LL1680 for the output.
Two tubes 6SN7 for each channel, one in SRPP configuration and the other as white buffer.
Separate power supply for each channel with UI shape transformer.
No capacitors in the signal root.
Zero feedback and unbelievable sound.