United Studio Technologies UT Twin48 – Large-Diaphragm Tube Condenser Microphone

A groundbreaking large-diaphragm tube condenser microphone that unites two iconic designs from the late ’40s and ’50s into a single, versatile tool. With Twin Mode operation, a custom UT K48 capsule, a high-performance power supply, and meticulously engineered components, the UT Twin48 delivers massive tube sound with unmatched tonal versatility, making it an essential addition to any professional studio.

exceptional design. This twin-mode large-diaphragm condenser microphone offers both 47-style and 48-style tonal characteristics, allowing engineers to tailor their recordings to perfection. Its Twin Mode operation features unique cardioid options – True Cardioid for open sensitivity and Active Cardioid for a warmer, more intimate sound – alongside Omni and Figure-of-8 patterns for ultimate flexibility.

Crafted with a custom UT K48 capsule and a NOS EF86 vacuum tube, the UT Twin48 captures bold, rich tones with vintage charm. The microphone includes a high-performance power supply with discrete regulation and premium components to ensure clean, noise-free operation. Every detail, from its nickel-plated solid brass body to the included Sommer Octave 7 cable and vintage-inspired briefcase, reflects United’s commitment to uncompromising quality. The UT Twin48 is a versatile and creative tool for vocals, instruments, and beyond.

KEY HIGHLIGHTS

Twin Mode Operation:

Switch between legendary 47-style and 48-style tonal characteristics for optimal flexibility.

Custom UT K48 Capsule:

Delivers smooth, vintage-inspired sound without harsh resonances.

Massive Tube Sound:

Features a NOS EF86 vacuum tube for bold, rich tones with harmonic depth.

Versatile Polar Patterns:

Includes 47 Cardioid, 48 Cardioid, Omni, and Figure-of-8 for diverse recording needs.

Premium Components:

High-performance power supply, custom transformer, and audiophile-grade parts ensure exceptional audio quality.

Complete Studio Solution:

Comes with a shock mount, premium 7-conductor cable, and a vintage-inspired briefcase.

FEATURES

• Twin Mode: Combines 47-style and 48-style tonal options in one microphone.
• Custom Capsule: UT K48 capsule with 24k gold-sputtered 6-micron Mylar for smooth, detailed sound.
• NOS EF86 Tube: Selected pentode vacuum tube provides authentic vintage harmonic richness.
• Premium Power Supply: Fully discrete design with US-made components for clean, maintenance-free operation.
• Custom Transformer: UT-BV8 transformer replicates vintage specifications for precise tone.
• Polar Patterns: Four selectable patterns – 47 Cardioid, 48 Cardioid, Omni, and Figure-of-8.
• Durable Construction: Nickel-plated, solid milled brass body for long-lasting performance.
• Complete Kit: Includes shock mount, Sommer Octave 7 cable, and vintage-inspired briefcase.

TECHNICAL SPECIFICATIONS

• Type: Tube condenser microphone.
• Capsule: 34 mm brass, single backplate K48 capsule.
• Diaphragm: 6-micron, 24k gold-sputtered Mylar.
• Polar Patterns: 47 Cardioid, 48 Cardioid, Omni, Figure-of-8.
• Frequency Response: 20 Hz – 20 kHz.
• SPL: 137 dB at 0.5% THD.
• Amplifier Type: Vacuum tube with NOS EF86 pentode.
• Output Impedance: 35 Ω.
• Connector: 24k gold-plated 3-pin XLR.
• Self-Noise: 11 dBA.
• Body Material: Nickel-plated, solid milled brass.
• Mounting: Suspension shock mount (included).
• Cable: Sommer Octave 7 conductor, 6 m / 19.7’.
• Power Input: 110-120 VAC or 220-240 VAC (switchable).
• Dimensions (Microphone):
  • Height: 26.5 cm / 10″
  • Diameter: 6.25 cm / 2.5″.
• Dimensions (Power Supply):
  • Height: 9.25 cm / 3.25″
  • Width: 19.5 cm / 7.5″
  • Depth: 18 cm / 7″.
• Dimensions (Briefcase):
  • Height: 17 cm / 6.75″
  • Width: 50 cm / 19.75″
  • Depth: 32 cm / 12.75″.

APPLICATIONS

• Vocals: Male, female, and group recordings.
• Fretted Instruments: Acoustic guitar and bass.
• Orchestral Instruments: Brass, woodwinds, and piano.
• Percussion: Cymbals and room capture.
• Broadcast: Radio, podcasting, and narration.
• Acoustic Environments: Room and hall capture.
• Miscellaneous: Sample capture for creative sound design.