TK Audio DP2 User Manual

DP2 is a unique hybrid design including both vintage and modern circuits built around two SP501
modules. The midrange crunch of the germanium sound of the mid 60's, the low mid punch and thick
sound associated with British class-A from the early 70's as well as the more modern tone from the
80's and 90's.
The input stage is built around a high quality Swedish Lundahl transformer and a hi-gain input stage
followed by a selectable germanium circuit that adds more harmonics. Two different output stages can
be selected – either an electronically balanced stage, or a discrete Carnhill transformer-balanced class-
A stage. The vintage class-A mode produces a fat and punchy sound with mid-range character and a
warm top end, while the electronically balanced output stage is less colored and perfect for clean
amplification.
The major updates from DP1mk3 to DP2 are the sweepable HPF from 30Hz to 400Hz which allows
precision crafting of the low end, and a separate switch to activate the instrument input.
The power supply has also been updated to for lower noise.
Key Features:
• Hi gain input-stage, up to 80dB
• Selectable germanium circuit for extra harmonics
• Sweepable hi-pass filter, 30-400Hz, 12dB/oct
• Hi-Z instrument input
• Selectable transformer balanced class-A output
• Lundahl and Carnhill transformers
• Headroom meter with eight LED's
DP2
Dual class-A preamp
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