The A200 is Circle Labs' current flagship integrated amplifier, with a minimalist ECC88 tube-based preamplifier paired with a Circle Power transistor amplifier.

The P300 preamplifier is a fully balanced design from input to output. The design of the P300 was guided by the idea of building a preamplifier as signal neutral as possible with the shortest possible signal path. Internal wiring was kept to a minimum.

Stereo power amplifier with the ability to work like a monoblock in fully balanced mode. ECC88 triodes coupled through Supreme Silver/Gold/Oil capacitors are responsible for voltage amplification. Power stages use the company's Circle Power circuit made for high power and current applications.

The V1000 is a high-end phono preamplifier for MC / MM cartridges, supporting two phono cartridges independently with fully adjustable impedance (10 - 1000 Ohms) and capacitance (0-320 pF). Built with a unique Step-Up Transformer using our own technology. We are one of the few companies that created from BASIC our own SUT design. Primary winding made of Lica consisting of 25 wires (each insulated from each other, all in Silk braid. Secondary winding made of high quality copper. All this made it possible to achieve a very low resistance (0.25 Ohm / 22 Ohm) to reduce signal loss from the cartridge.