Flea M 251

Introducing the FLEA M 251, a stunning replica of the original 251, widely celebrated as one of the greatest microphones ever created.

Crafting this clone wasn’t just a project; it was a labor of love and dedication, requiring immense patience and deep passion due to the complexity and intricacy of its design.

Despite the challenges faced in its creation, the FLEA M 251 stands as a testament to our commitment to excellence. Every aspect of this microphone has been refined, even improving upon the original in certain areas.

Key Innovations:

  • Gold-Plated Components: All crucial connecting parts, pins, and terminals are gold-plated for enhanced conductivity and reliability.

  • Advanced Wiring: Following Andreas Grosser’s latest design improvements, the microphone boasts reduced noise, enhancing its already exceptional sound quality.

It comes equipped with:


  • Tim Campbell CT12 Capsule: A precise emulation of the CK12 capsule, known for its exacting sound reproduction.


  • T14/1 Transformer Clone: An identical replica of the original, ensuring the microphone retains the iconic sound of its predecessor.


  • Standard: 6072A Tube, carefully chosen for its contribution to the microphone’s tonal character.

Polar Patterns

  • Versatile with cardioid, figure-eight and omnidirectional options, accommodating a diverse range of recording scenarios.


  • Available in two colours – “vintage” (RAL 7032) as standard, and white as an option.

A True Masterpiece:

The FLEA M 251 isn’t just a microphone; it’s a masterpiece that encapsulates the spirit of its legendary ancestor. Experience the unparalleled clarity and warmth that this microphone brings to every recording.

Complete Set:

This exquisite microphone comes in a full set, including a flight case, a wooden box for safe storage, a power supply unit, a high-quality cable, and a yokemount for optimal positioning.


Directional Pattern

Cardioid, Omni, Figure 8

Frequency Range

20 Hz - 20 kHz

Sensitivity at 1kHz

18 mV/Pa

Rated Impedance

200/50 Ohms

THD at 1kHz at 1Pa


Maximum SPL

132 dB

Self Noise

10 dBa


Flea T14/1


CT12 (Tim Campbell)

Standard Tube


Optional Tube

GE6072A (+300€) or TAD6072 (+50€)

What's included in the microphone set

  • Microphone in wooden box
  • Power Supply
  • Mic – PSU Cable with swivel mount connector
  • Power Cord
  • Microphone Dust Cover
  • Printed Manual
  • All is packed in heavy duty flight case with foam insert

What Our Flea M 251 Owners Say...

FLEA ELA M 251, Rene Laflamme, Canada


“Just did a recording.It was a very real and beautiful sound with your mic’s.”

FLEA ELA M 251, Rene Laflamme, Canada


“I plug the 251’s this morning, oh man !! The sound in omni is mind

FLEA ELA M 251, Petteri Sariola, Finland


“Check the video featuring the FLEA ELA M 251”