The Ultimate Reference tube output preamplifier
Unique input switching and attenuator control without the use of any mechanical switches or specialized integrated circuits.
Differential Class-A tube output stage featuring ECC99 tubes and custom-made Lundahl output transformers wound with Oxygen Free Copper.
The most natural, detailed, and dynamic presentation.
DESCRIPTION
The PRE-GR is an all-hand-made boutique preamplifier designed for the most enthusiastic audiophiles who cannot settle for anything else but the absolute best.
From the input switching module made without using any mechanical contacts to the very dynamic and transparent differential tube output stage featuring ECC99 tubes and custom-made Lundahl output transformers, the PRE-GR offers a truly unique sound quality that is in a class of its very own.
FEATURES
Signal Processing
- Microprocessor controlled discrete attenuator module with precision 0.75dB steps.
- Memorized attenuator levels for each input.
- Differential tube output stage featuring ECC99 tubes.
- Zero Negative Feedback.
- Custom-made Lundahl output transformers featuring Oxygen Free Copper windings.
- Non-magnetic resistors of the highest possible quality.
- Internal wiring by Esprit Audio, France for the analog signal path.
- No mechanical switching devices on the signal path or on the power supply lines.
Power Supply
- Oversized Custom R-Core balanced power transformer wound with OFC.
- Super-large capacitor filter bank.
- High grade, specially selected rectifiers, and passive components.
- High quality power filtering choke made by Lundahl.
- Delayed High-Voltage power for increased tube life.
- Solid Oxygen Free Copper wiring for the power supply as well.
Convenience and mechanical
- Large FLD display made in Japan by Noritake.
- Custom selectable colors, Red, Blue or Green. Please specify when ordering.
- Average temperature display for internal temperature.
- Infrared Remote Control capable of controlling.
- Very solid All-Aluminum precision machined enclosure, same size as the DSD-GR.
Warranty
2-years warranty/6-months for the tubes with an available
3-year warranty extension, with the online product registration, excluding the tubes