Capture studio-quality sound with unmatched tonal versatility and precision. This microphone combines the best of two legendary designs, offering selectable modes that replicate the classic U47 and U48 sonic signatures. Switching between these modes provides distinct cardioid, omni, and figure-8 polar patterns, enabling tailored recording setups for vocals and instruments with exceptional clarity.
The microphone’s custom UT Series 34 mm brass capsule features a single backplate K48 design and dual 6-micron diaphragms crafted from 24 kt gold-sputtered Mylar. This construction delivers low self-noise at 11 dBA and high sensitivity (-37 dB @ 60 V), capturing subtle nuances across a broad 20 Hz to 20 kHz frequency response. The capsule’s precise engineering reduces resonance and sibilance, ensuring natural sound reproduction.
Powered by a NOS selected EF86 pentode vacuum tube and a custom-wound UT Series transformer made in the USA, the microphone offers warm tube amplification with 137 dB SPL handling at 0.5% THD. The custom transformer employs high-nickel alloy laminations and a copper Faraday shield to minimize electromagnetic interference, preserving signal integrity in professional environments.
Durability meets refinement in a solid milled brass body with nickel electroplating, providing both ruggedness and aesthetic appeal. The microphone includes a suspension-type shockmount to isolate mechanical vibrations, ensuring clean recordings. Connectivity features a 24 kt gold-plated 7-pin XLR output and a custom Sommer 7-conductor 6-meter XLR cable for reliable signal transmission.
The external power supply supports 110-120 V or 220-240 V AC with switch-selectable input, delivering discrete and isolated voltage rails for filament, B+, and polarization. This design uses US-made discrete regulators and high-quality components to eliminate noise and radio-frequency interference, providing stable, maintenance-free operation. An inline EMI/RFI filter and selectable RF filter on the audio output further reduce unwanted noise.
Included accessories enhance usability and protection: a vintage-style briefcase for secure transport, a high-performance power supply, shockmount, and custom interconnect cable. The microphone’s dimensions—254 mm height and 61 mm diameter—balance presence and practicality in any studio setup.
With its historically accurate capsule, premium tube amplification, and advanced noise control, this microphone redefines professional recording standards. Designed for engineers and artists demanding authentic vintage warmth combined with modern reliability, it delivers consistently refined performance in critical audio applications.
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