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Musical Surroundings Phenomena II+ Phono Preamp & LPS

$499.00
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  • 9/10 condition
  • All original packaging
  • Non-smoking environment
  • Free shipping

The Musical Surroundings Phonomena II+ paired with the Musical Surroundings Linear Power Supply (LPS) is a highly regarded, highly customizable audiophile phono stage combination designed by Michael Yee. This dual-mono discrete solid-state setup is celebrated for delivering class-leading flexibility and massive sonic upgrades over standard wall-wart power adapters. 
1. Musical Surroundings Phonomena II+ Phono Preamp
The Phonomena II+ serves as the core preamplifier unit, engineered to handle both Moving Magnet (MM) and Moving Coil (MC) cartridges.
  • Discrete Circuitry: It bypasses cheap, off-the-shelf op-amps in favor of an entirely custom signal path containing hundreds of discrete parts.
  • Dual-Mono Architecture: Features independent, isolated channels to maximize stereo separation and build a highly accurate soundstage. 
  • Extreme Adjustability: Equipped with a rear array of dual-channel DIP switches allowing you to tailor the unit perfectly to any cartridge profile.
    • 13 Gain Settings: Ranging meticulously from 40dB up to 60dB.
    • 17 Loading Options: Input impedance options ranging from 30 ohms to 100k ohms.
  • Form Factor: Features a compact steel chassis (8.5" W x 6" D x 2" H) handmade in California.
2. Musical Surroundings Linear Power Supply (LPS)
While the Phonomena II+ ships with a standard switching power supply, upgrading to the dedicated external LPS unlocks its full performance potential.
  • Eliminates Noise Floor: Eliminates the high-frequency switching noise inherent to digital wall adapters, resulting in what audio reviewers call a "blacker" background.
  • Premium Infrastructure: Uses a high-grade Tamura transformer (highly trusted in tube amplifier design) paired with large filter capacitors and rectifiers.
  • Precision Regulation: Implements Ultra-Low Noise Linear Technologies regulators to supply an ultra-clean, continuous +22.5V stream.
  • System Isolation: Keeps magnetic field emissions physically isolated from the delicate low-level audio circuitry.
Performance Profile
  • Sonic Characteristics: Known for a highly transparent, balanced, and dynamic signature that uncovers micro-details without sounding harsh or sterile. 
  • The LPS Impact: Adding the LPS yields immediately noticeable improvements in bass authority, transient attack speed, and space/decay between instruments.