MOON 641

The MOON 641 represents the heart of any audio system, combining a preamplifier and power amplifier in a single chassis to deliver an integrated, high-level experience. This integrated amplifier, serving as the entry point to the North Collection, showcases MOON’s premium design and the latest audio technologies, naturally becoming the centerpiece of a modern home audio setup. Its dual-mono structure delivers 125 W into 8 Ω and 250 W into 4 Ω, providing power and control even with demanding speakers. The MDCA circuit operates outside the signal path to reduce distortion without using global feedback, while the M-VOL3 control ensures precise and stable gain adjustment even at very low levels. With a damping factor of 700, a signal-to-noise ratio of 109 dB, and a frequency response of 2 Hz to 90 kHz (+0/–3 dB), the 641 offers measured and reliable performance across a wide range of speakers. The 4.3” color display simplifies daily operation and system setup. Designed and assembled in Québec, it naturally takes the central role in a high-quality audio system.

Attention to detail extends to the internal structure, featuring a carefully arranged layout and vertical heatsinks for thermal and mechanical stability. Usability is enhanced by the display, local controls, and MOONLink connectivity, allowing easy coordination of the 641 with other North Collection components. Standby modes include a low-power option (2.5 W) for everyday convenience. The rear panel provides line inputs, a line output, and clearly organized speaker terminals for neat wiring. The included BRM-1 intelligent remote enables direct control of all functions. Whether used alone or paired with a dedicated source such as the MOON 681, the 641 delivers a clear and reliable listening experience, faithful to the North Collection philosophy.

At the core of the MOON 641’s performance is the MDCA + M-VOL3 combination, which sets it apart for precision and reliability. The MDCA circuit reduces noise and distortion, while M-VOL3 ensures accurate channel tracking and fine adjustment. The dual-mono topology and robust power supply preserve signal integrity from inputs to speaker terminals. Published figures — THD+N 0.003% at 125 W and crosstalk –109 dB — confirm stable performance at real listening levels. The 4.3” display simplifies access to all settings, while for digital playback and streaming, the MOON 681 is the natural companion, providing smooth coordination via MOONLink. The result is precise, long-lasting performance consistent with the North Collection identity and standards.

Technical specifications:

• Output power (Stereo 8 Ω): 125 W
• Output power (Stereo 4 Ω): 250 W
• Input sensitivity: 300 mV – 6 V
• Input impedance: 22 kΩ
• Gain: 40 dB
• Frequency response: 2 Hz – 90 kHz (+0 dB / –3 dB)
• Crosstalk: –109 dB
• Signal-to-noise ratio: 109 dB
• Total harmonic distortion + noise (@ 1 W): 0.008%; Total harmonic distortion + noise (@ 125 W): 0.003%
• Intermodulation distortion: 0.06%
• Damping factor: 700
• Power consumption: 38 W (idle); 37 W (full power standby); 2.5 W (low power standby)
• Shipping weight: 26 kg
• Dimensions (W x H x D): 48.1 x 10.2 x 46.5 cm