Roswell Pro Audio SDC-84 – Pencil Condenser Microphone
OVERVIEW
The Roswell Pro Audio SDC‑84 is a high-quality pencil condenser microphone inspired by the beloved vintage Neumann KM84 design. Unlike ultra-neutral microphones, the SDC-84 is voiced to emphasise musical character and warmth, making it a favourite for recording acoustic instruments and stringed sources.
The circuit subtly controls fast transients, gently compressing higher-SPL peaks to produce a smooth, musical response. This characteristic makes the SDC-84 especially effective on acoustic guitars, where it captures detail while maintaining a balanced, natural tone.
Hand-built in Roswell’s California workshop, the SDC-84 combines classic microphone inspiration with modern reliability and precision assembly, delivering professional studio performance at a far more accessible price than vintage alternatives.
“Although it’s not intended as a direct clone, the SDC-84 gets as close to the [KM84] sound as anything else I’ve tried… I don’t think I would be able to tell them apart in a blind test.” — Sound On Sound Magazine
KEY HIGHLIGHTS
Inspired by the Vintage KM84
The SDC-84 captures the warm, musical character that made the original KM84 one of the most sought-after small-diaphragm microphones.
Musical Transient Control
Its circuit slightly softens aggressive transients, creating smooth and natural recordings of acoustic instruments.
Perfect for Acoustic Guitar
The microphone’s tonal balance and transient handling make it particularly effective for capturing acoustic guitar.
Excellent for Overheads
Matched pairs work beautifully as drum overheads, delivering balanced stereo images and natural cymbal detail.
Hand-Built Craftsmanship
Each microphone is assembled and tuned in Roswell’s California workshop using premium components.
FEATURES
- Inspired by the vintage Neumann KM84 circuit design
- Character-focused voicing with smooth transient response
- Cardioid pencil condenser microphone design
- Ideal for acoustic instruments and overheads
- Hand-built in California
TECHNICAL SPECS
| Model: | SDC-84 |
| Acoustic Principle: | Pressure gradient transducer |
| Polar Pattern: | Cardioid |
| Circuit Type: | Transformer-based KM84-style design |
| Power Requirement: | 48V Phantom Power |
| Output: | Balanced XLR |




