PRE-GR

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