ST-35 Tube Amplifier

• Positioning: An entry-level tube amplifier built for great sound in small setups and budget-friendly systems.
• Description: Features modern components like a new PA-774 power transformer and a built-in cathode follower bias circuit that delivers clear, controlled detail with minimal noise. Compared to the ST-70, MK III, MK IV, and MK VI, it offers simple, effective circuitry aimed at buyers needing affordability and compact functionality.

ST-70 Tube Amplifier

• Positioning: A mid-range tube amplifier that steps up performance with enhanced components for larger room use.
• Description: Incorporates upgraded coupling caps, a refined driver board with the classic Dynaco 6GH8A circuit, and a robust push-pull design for improved dynamic range and clarity. When compared to the ST-35, it provides better power handling and detail while remaining less complex than the MK series.

MK III Tube Amplifier

• Positioning: A well-balanced pair of monoblock amplifiers targeting a higher mid-range market for improved sound quality.
• Description: Uses premium parts such as a genuine Dynakit P-782 power transformer, multi-section capacitors, and a matched PC-1 driver board to deliver 60 watts per channel with exceptional stereo separation. Its enhanced power handling and refined tone set it above the ST-70 while still offering a straightforward design compared to the more advanced MK IV and MK VI models.

MK IV Tube Amplifier Pair

• Positioning: A premium monoblock amplifier set designed for audiophiles seeking superior channel separation and clean power.
• Description: Integrates upgraded coupling capacitors, individual power supplies for each channel, and advanced filtering that results in a smoother, more detailed soundstage for larger systems. In comparison to the MK III, it provides noticeable improvements in stereo independence and performance, though it remains less exclusive than the rare, high-powered MK VI pair.

MK VI Tube Amplifiers

• Positioning: A rare, high-end amplifier pair restored to original specifications for ultimate performance and exclusivity.
• Description: Stands out with its robust 120-watt output per channel, potted output and power transformers with multiple primary windings, and carefully matched NOS tubes that together deliver exceptional power and sonic clarity. Its vintage restoration and unique design place it at the top of the lineup, far surpassing the simpler ST-35, ST-70, and even the MK III and MK IV in both performance and rarity.