Audio Space Mp-1b -
: Originally retailed for approximately ¥398,000 , with used pairs often sold for significantly less (e.g., ¥161,818) depending on condition. Comparison and Synergy
Technically, the MP-1B utilizes a combination of classic and modern tube types. It typically employs 12AX7 and 12AU7 dual-triode tubes, components known for their linearity and musicality. The circuit is a sophisticated implementation of a single-ended, pure Class A design. The adjustable feedback loop allows the user to vary the damping factor and distortion characteristics in real-time. With zero feedback, the preamplifier operates in its most "raw" state: the sound is open, harmonically rich, and slightly lush, with a touch of second-order harmonic distortion that the ear finds pleasing. As the user increases the NFB, the sound tightens; distortion drops, bandwidth widens, and transient attack becomes sharper. In essence, the MP-1B contains multiple preamplifiers within one chassis.
While specific versions may vary slightly, the MP-1B generally adheres to a classic tube architecture: audio space mp-1b
The Audio Space MP-1B is a single-channel microphone preamp that features a unique, proprietary circuit design. The preamp is built around a combination of discrete transistors and op-amps, which provide a high degree of gain and a low noise floor. The MP-1B has a maximum gain of 70 dB, making it suitable for use with a wide range of microphones, including dynamic, condenser, and ribbon models.
utilizes a configuration. This design is prized among audiophiles for its ability to deliver the "magic" of 300B tubes while providing more driving power than single-ended designs. : Originally retailed for approximately ¥398,000 , with
Here is the killer feature. Located on the top plate near the output transformers is a small toggle switch.
In the high-fidelity audio world, certain numbers carry a mystical weight: 300B, 2A3, KT88. Among these, the 300B direct-heated triode is often called the "King of Tubes" for its unparalleled midrange purity and holographic soundstaging. However, owning a 300B amplifier often comes with compromises—low power, high cost, and a need for extremely efficient speakers. The circuit is a sophisticated implementation of a
The world of audio engineering is filled with a vast array of equipment and tools that help shape and refine the sound of music, voiceovers, and other audio productions. Among the most revered and sought-after pieces of gear is the Audio Space MP-1B, a microphone preamp that has gained a legendary status among audio engineers and producers. In this article, we'll take a deep dive into the world of the Audio Space MP-1B, exploring its history, design, and sonic characteristics that have made it a staple in many professional recording studios.
| Feature | Audio Space MP-1B | Willsenton R300 | Line Magnetic 518IA | | :--- | :--- | :--- | :--- | | | $2,200 - $2,800 | ~$1,600 | ~$3,500 | | Rectification | Tube (5U4G) | Solid State | Tube (274B) | | Power Modes | Triode / UL | Single-Ended only | Pure Class A | | Bias | External adjustable | Fixed auto-bias | External adjustable | | Sound | Warm, Versatile | Lean, detailed | Lush, sluggish |