Circle Labs
AS100
Related Content
HiFi Editorial
Circle Labs AS100: High-Precision Integrated Amplifier Focused on Sonic Accuracy
The Circle Labs AS100 is a high-fidelity integrated amplifier designed for exceptional sound accuracy and control.
Features a 63-step precise resistance ladder for volume control, ensuring channel balance and long-term stability.
Incorporates Burr-Brown J-FET transistors in the input stage and bipolar transistors in the output stage for signal purity and dynamic performance.
HiFi Editorial
Circle Labs AS100 and M500 Amplifiers Make Their Debut at Audio Video Show Warsaw 2025
The Circle Labs AS100 and M500 amplifiers debuted at the Audio Video Show Warsaw 2025, showcasing innovative audio technology.
Circle Labs M500 is a flagship two-channel power amplifier with hybrid design, delivering 180W/channel at 8Ω or 1200W at 4Ω as monoblocks.
It incorporates ECC88/6922 triode tubes in SRPP configuration with Mundorf Silver Gold Oil capacitors for signal clarity and distortion minimization.
HiFi Editorial
Circle Labs AS100 Amplifier: Bridging Advanced Technology with Superior Sound
The Circle Labs AS100 integrated amplifier delivers 75W RMS at 8Ω and 140W RMS at 4Ω with exceptional sound fidelity.
It employs a precision resistor ladder for volume control with 63 steps of 0.1% tolerance, providing superior signal accuracy.
The design features dual-mono topology, individual 400W toroidal transformers, and 200,000 μF capacitors for high power and low distortion.