The new S200 Stereo. Where the PMG Signature journey begins — the full PMG Signature topology, scaled for real rooms and real systems. One hundred watts per channel into 8 ohms, doubling into 4, with 10 watts of pure Class A bias per channel, a state-of-the-art active power supply, and strikingly low overall feedback. Designed by Darren Myers and engineered by Bob Stadtherr in Boulder, Colorado.

Design

The S200 is proof that “entry-level” and “compromised” are not the same word. It is the full PMG Signature topology — Darren Myers’s low-feedback design and the same state-of-the-art active power supply architecture found throughout the line — scaled in output rather than stripped in concept.

Application

The S200 is a single stereo chassis built for real rooms and real systems. One hundred watts per channel into 8 ohms, doubling into 4, is ample for efficient and moderately demanding loudspeakers — bookshelf monitors, stand-mounts, and full-sized floorstanders — in small to medium rooms.

Class A Purity

Most of what we call “high-end” amplification is, in truth, Class AB: a small region of Class A operation at low power, and then a transition — a handoff between transistors — as the music grows louder. That transition is not free. At the crossover point, distortion artifacts appear, and the music briefly crosses a discontinuity it was never meant to encounter.

Active Power Supply

There is a reason the most uncompromising amplifiers have always been monoblocks: one channel, one chassis, one power supply, and therefore nothing for that channel to fight with. A stereo amplifier gives up that isolation by definition — its two channels share a single power supply, and a demand from one can disturb the other.

Output Stage

The final and most consequential choice in an amplifier’s design is how much negative feedback to apply around its output stage. Feedback is a correction loop: it watches the output, compares it to the input, and cancels the difference.

Specifications

• Power Output: 100W/ch into 8Ω, 200W/ch into 4Ω (1kHz, <1% THD)
• Class A Power Output: 10W/ch into 8Ω
• Frequency Response: <10Hz – 80kHz (±0.25dB)
• Input Impedance: 100kΩ single-ended; 200kΩ balanced
• Bandwidth: >500kHz · THD: <0.002% typical · Damping Factor: >240 at 8Ω
• Crosstalk: >90dB at 1kHz · Gain: 26.2dB · Sensitivity: 1.4V
• Inputs: RCA 1 pair, XLR 1 pair · Speaker Outputs: 4 pair binding posts
• Power: Auto 120/230VAC 50/60Hz · Idle 180W
• Weight: 56.2 lbs (25.5 kg) · Dimensions: 16″L × 17.5″W × 8″H