The Moon Simaudio 400M Power Amplifier is extremely powerful with a delicacy and articulation of the best amplifiers available, taking on virtually any loudspeaker you connect it to. Delivering a bottom-end slam, with authority and weight to the foundation of the music, it will transport you into a live concert environment. On the top end of the musical spectrum, the400M delivers finesse, detail and refinement that can challenge your perception of reality vs. recorded music.

This item is available in-store only. Please inquire to purchase. Black currently in stock.

• Fully balanced differential circuitry
• Precision matched proprietary MOON Bipolar output transistors for improved bass response and accurate sonic reproduction
• An oversized power supply using a custom proprietary toroidal transformer design
• A high damping factor yielding superior musical dynamics, improved signal speed & refined timbre accuracy
• “Class A” output to 10 watts for greater efficiency
• Optimized selection of very high quality electronic components

• Output Power at 8Ω 400 W
• Output Power at 4Ω 650 W
• Input Sensitivity 800mV RMS
• Input Impedance 47,500Ω
• Gain 36dB
• Signal-to-noise Ratio 106dB @ full power
• Frequency response (full range) 10Hz – 125kHz +0/-3dB
• THD (20Hz – 20kHz @ 1 W) 0.02%
• THD (20Hz – 20kHz @ 400 W) 0.05%
• Intermodulation distortion 0.02%
• Shipping weight 33 lb / 15 kg
• Dimensions (width x height x depth) 16.9 x 3.5 x 14.0 in (or 42.9 x 8.9 x 35.6 cm)

The following accessories should be included inside the box with your amplifier:

• AC power cable
• Owner’s manual
• Warranty and product registration information (USA and Canada only)