Micromega AS-400 Integrated Amplifier
Best all-in-one solution for audiophiles seeking powerful, modern streaming performance.
Experience high-fidelity audio with the Micromega AS-400 Integrated Amplifier, a versatile one-box solution that blends powerful amplification with modern streaming. It delivers 200 watts per channel of clean Class D power, effortlessly driving demanding speakers. Enjoy seamless wireless streaming via its proprietary AirStream technology or connect traditional sources, including turntables, thanks to the built-in MM phono stage. With its integrated DAC supporting high-resolution audio and comprehensive connectivity options, the AS-400 offers exceptional performance and convenience for discerning listeners.
$4595.00
Owner Satisfaction
4.7
/ 5
Category Rank
421
/ 1719
#421 in Power Amplifiers
Price vs Category Average
-44%
Below average
Power Output
20084004
/ WPC into Ohms, WPC into Ohms
Who it's for
- Audiophiles driving power-hungry, low-sensitivity speaker systems
- Listeners prioritizing transparent, fatigue-free audio reproduction
- Collectors valuing premium build quality and long-term reliability
Who should skip it
- Budget-conscious buyers seeking high-value entry points
- Users with limited rack space or lightweight shelving
- Vinyl enthusiasts managing multiple legacy analog components
Performance breakdown
Power Delivery
Class D efficiency provides massive headroom for even the most demanding speakers.
Streaming Integration
AirStream technology offers a seamless, high-fidelity wireless experience for modern listeners.
Phono Stage Quality
Built-in MM stage provides a convenient, capable entry point for vinyl enthusiasts.
Digital Conversion
Cirrus Logic DAC delivers clean, detailed resolution for all digital source material.
Build Integrity
Substantial chassis weight reflects a premium, vibration-resistant internal construction.
System Versatility
Comprehensive inputs and expansion outputs make this a true all-in-one hub.
Key Specs
Power Output
200 WPC into 8 Ohms, 400 WPC into 4 Ohms
Amplifier Class
Class D Solid-State
DAC Chips
Cirrus Logic CS 4351 24-bit/192kHz
Weight
33 lbs
Inputs
Three line inputs, MM phono input, Analog iPod input
Outputs
Preamp output, Headphone jack, Subwoofer outputs
Connectivity
AirStream wireless protocol, Ethernet jack
Clock
Custom precision low jitter clock
Features
- Integrated amplifier, streamer, and DAC in one unit
- High-quality built-in MM phono stage
- Proprietary AirStream wireless streaming
- Drives inefficient speakers with ease
- Seamless input switching
- Clean, dynamic sound signature
- System expansion via preamp and subwoofer outputs
- High build quality
What customers say
Owners consistently praise the AS 400 for its exceptional build quality and sophisticated, minimalist design. The sound performance is frequently described as powerful yet transparent, delivering high fidelity audio that easily drives demanding speakers. Enthusiasts feel this amplifier represents a significant investment in long term listening pleasure, appreciating the robust engineering and refined aesthetic that elevates any audio setup. This combination of sonic clarity and premium construction defines the user experience.
Know before you buy
Yes, the AS-400 features a built-in moving magnet (MM) phono stage, allowing you to connect a turntable directly to the unit without needing an external preamp.
With 200 watts per channel into 8 ohms and 400 watts into 4 ohms, the Class D amplification is designed to provide high current and stability, making it capable of driving difficult or inefficient speaker loads with ease.
The AS-400 utilizes Micromega’s proprietary AirStream technology, which is compatible with AirPlay, allowing you to stream audio wirelessly from your devices over your home network.
Yes, the unit includes both preamp outputs for system expansion with an external power amplifier and dedicated subwoofer outputs for integrating a powered sub.
The integrated Cirrus Logic DAC supports high-resolution audio files up to 24-bit/192kHz, ensuring high-fidelity playback for your digital music library.
Yes, the unit features a dedicated headphone jack on the front panel, allowing for private listening sessions without needing additional equipment.
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$4595