Universal Audio SP-1｜Professional Stereo Small-Diaphragm Condenser Microphone Pair｜UA Hemisphere Mic Modeling
The Universal Audio SP-1 is a precision-matched stereo pair of small-diaphragm condenser microphones, designed to capture instruments and live performances with natural depth and detail. Featuring UA’s Hemisphere Mic Modeling technology, the SP-1 reproduces the tone and character of legendary pencil microphones from AKG and Neumann, giving you studio-grade stereo sound for any session — from acoustic guitars and drums to pianos and ensemble recordings.
Record Through Five Legendary Pencil Mics
SP-1 uses the same advanced mic modeling technology found in UA’s award-winning Sphere series. With the included Hemisphere Mic Collection, you can access authentic tones from five iconic small-diaphragm condensers, including AKG and Neumann classics — giving your recordings pristine, professional sound quality.
Flexible Modeling That Works for You
The SP-1 and Hemisphere software work perfectly with or without UA hardware. Adjust filter, axis, and proximity in real time to find your perfect tone — whether you’re taming harsh highs on percussion, adding warmth to guitars, or creating the ideal stereo image for your mix.
Your Ideal Stereo Recording Partner
With a classic cardioid pattern and high SPL handling, the SP-1 excels in stereo recording setups. It delivers smooth top-end detail and natural imaging for drum overheads, acoustic guitars, percussion, or brass ensembles — ensuring clean, balanced stereo results in every environment.
Built to Last, Ready for Any Stage
The SP-1 features precision-matched capsules and rugged metal construction for consistent performance and long-term reliability. Its retro finish pairs timeless design with modern durability — perfect for both studio and live use, ensuring stable, professional results for years to come.
Key Features
- Matched small-diaphragm condenser pair for natural, detailed stereo recording.
- Cardioid polar pattern focuses on the source while rejecting unwanted noise.
- UA Hemisphere Mic Modeling recreates iconic tones from AKG and Neumann classics.
- Ideal for acoustic instruments, drums, piano, and live performance capture.
- High SPL handling with smooth frequency response for versatile applications.
- Rugged all-metal design ensures durability on stage or in the studio.
Included Hemisphere Mic Models
- SD-54: Classic nickel-diaphragm mic with clear mids and open highs — used by Larry Carlton, Yo-Yo Ma, and Eric Clapton.
- SD-56: Dual nickel diaphragm with AC701 tube for silky highs and soft lows — perfect for guitar, piano, and vocals.
- SD-84: Modern cardioid pencil mic known for detailed response, used worldwide by artists like Anderson .Paak and Mac DeMarco.
- SD-86: Dual KM84-style capsules offering crisp highs and smooth mids — a hallmark of countless Motown classics.
- SD-451: Modular design with bright, forward tone and switchable 75 Hz / 150 Hz low-cut filters for multiple instruments.
Technical Specifications
| Microphone Type | Small-Diaphragm Condenser Pair |
| Polar Pattern | Cardioid |
| Frequency Response | 20 Hz – 20 kHz |
| Sensitivity | -38 dB (12.6 mV) @ 1V / 1Pa, 1 kHz |
| Output Impedance | 200 Ω |
| Recommended Load | > 2 kΩ |
| Connector | 3-Pin XLRM |
| Maximum SPL | 142 dB SPL @ 1% THD |
| Phantom Power | 48 VDC |
| Included Accessories | 2 × Mic Mounts, Stereo T-Bar, 2 × Foam Windscreens, 2 × Thread Adapters |
| Dimensions | 128 mm × 23.5 mm (5" × 0.93") |
| Weight | 125 g (0.28 lbs) |
