The sonic signature of the MP-1B is defined by this chameleon-like adaptability. With the NFB set low, the MP-1B excels at intimate jazz vocals and solo classical guitar, where the decay of a cymbal or the breath of a singer needs texture and space. The midrange is gloriously liquid, avoiding the "glare" that plagues lesser solid-state designs. Conversely, with high NFB engaged, the preamp transforms into a reference-grade tool for large-scale orchestral works or complex rock mixes. Bass becomes authoritative and taut, treble extends without grain, and the soundstage snaps into laser-focused focus. Few preamps at any price can toggle between "euphonic" and "accurate" with such fluidity.
| 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 |
Typically utilizes a combination of 12AX7 and 12AU7 tubes, which are widely available for "tube rolling" (swapping tubes to customize the sound).
The MP-1B uses a hybrid driver stage. A typical unit ships with:
Audio Space Mp-1b Updated Official
The sonic signature of the MP-1B is defined by this chameleon-like adaptability. With the NFB set low, the MP-1B excels at intimate jazz vocals and solo classical guitar, where the decay of a cymbal or the breath of a singer needs texture and space. The midrange is gloriously liquid, avoiding the "glare" that plagues lesser solid-state designs. Conversely, with high NFB engaged, the preamp transforms into a reference-grade tool for large-scale orchestral works or complex rock mixes. Bass becomes authoritative and taut, treble extends without grain, and the soundstage snaps into laser-focused focus. Few preamps at any price can toggle between "euphonic" and "accurate" with such fluidity.
| 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 | audio space mp-1b
Typically utilizes a combination of 12AX7 and 12AU7 tubes, which are widely available for "tube rolling" (swapping tubes to customize the sound). The sonic signature of the MP-1B is defined
The MP-1B uses a hybrid driver stage. A typical unit ships with: Conversely, with high NFB engaged, the preamp transforms
