Telefunken AR-51 in great/mint used condition, like new.

The Telefunken AR-51 is a premium large-diaphragm tube condenser microphone inspired by some of the most sought-after vintage European tube microphones ever created. Combining a hand-selected vacuum tube, custom transformer, and Telefunken’s renowned attention to detail, the AR-51 delivers a rich, open, and highly musical sound that has made it a favorite for vocals, acoustic instruments, drum overheads, piano, and professional studio recording applications.

This used Telefunken AR-51 offers the opportunity to acquire one of Telefunken’s most respected tube microphones at an attractive price while retaining the classic warmth, depth, and dimensionality that have made the AR-51 a modern studio favorite.

Designed for engineers, producers, and musicians seeking premium tube microphone character without sacrificing clarity and detail, the AR-51 provides a beautifully balanced combination of vintage warmth and modern precision.

Classic Tube Character with Modern Reliability

The AR-51 was designed to capture the depth and musicality of legendary tube microphones while providing the consistency and reliability required in today’s professional recording environments.

• Premium Tube Circuit – Delivers warmth, harmonic richness, and dimensional depth.
• Large-Diaphragm Condenser Design – Captures vocals and instruments with exceptional detail and realism.
• Custom Output Transformer – Contributes to the microphone’s smooth, musical character.
• Extended Frequency Response – Provides excellent clarity while maintaining a rich and natural presentation.

Exceptional for Vocals

The AR-51 has become particularly well known for vocal recording.

• Rich Midrange Detail – Helps vocals sit naturally in a mix.
• Smooth Top End – Delivers air and openness without excessive harshness.
• Controlled Low End – Adds warmth and authority without becoming muddy.
• Excellent Presence – Enhances vocal intelligibility and emotional impact.

Whether recording lead vocals, backing vocals, spoken word, or voice-over work, the AR-51 consistently delivers polished and professional results.

Versatile Studio Performance

Beyond vocals, the AR-51 excels on a wide range of instruments.

• Acoustic Guitar – Captures detail, body, and natural resonance.
• Piano – Reproduces harmonic complexity with exceptional realism.
• Drum Overheads – Provides depth and smooth transient response.
• Strings & Acoustic Instruments – Delivers warmth while preserving articulation.

Its versatility makes it an outstanding centerpiece microphone for project studios and professional recording facilities alike.

Features

• Used Telefunken AR-51 tube condenser microphone
• Large-diaphragm tube microphone design
• Premium vacuum tube signal path
• Custom output transformer
• Nine selectable polar patterns
• Rich harmonic character and tube warmth
• Exceptional vocal recording performance
• Suitable for professional studio applications
• Hand-assembled Telefunken quality

Applications

• Lead Vocals
• Backing Vocals
• Voice-Over Recording
• Acoustic Guitar
• Piano
• Drum Overheads
• Strings & Acoustic Instruments
• Professional Studio Recording

Technical Specifications

• Type: Large-Diaphragm Tube Condenser Microphone
• Capsule: Edge-terminated large-diaphragm condenser capsule
• Tube: Premium vacuum tube circuit
• Polar Patterns: 9 selectable patterns
• Output: Transformer-balanced output
• Power Supply: External tube microphone power supply
• Applications: Vocals, acoustic instruments, studio recording
• Condition: Used

Why Choose the Telefunken AR-51?

The Telefunken AR-51 has earned its reputation as one of the most musical and versatile tube microphones available. Offering a beautiful blend of vintage-inspired warmth, modern clarity, and exceptional craftsmanship, it delivers the kind of polished, three-dimensional recordings that engineers and artists associate with high-end studio productions.

For anyone seeking a premium tube microphone with outstanding vocal performance and exceptional versatility, the Telefunken AR-51 (Used) remains an outstanding choice.