Introducing the O.P.R Plan 251 Transistor MP (Multi-Pattern)
Omnidirectional, Cardioid, and Figure-8 Polar Patterns 
Handcrafted in Melbourne, Australia.
Experience the Rich Audio of the O.P.R Plan 251 Transistor MP!
Unlock sonic clarity, warmth, and exquisite detail with the O.P.R Plan 251 Transistor MP. Designed to capture every nuance of your sound with unparalleled precision, this microphone lets you explore the full spectrum of your recordings like never before.
A Legacy of Excellence
The original 251 microphone, introduced in 1959, remains an icon of audio perfection. Revered for its indispensable role in recording history, the 251 continues to be regarded as one of the finest microphones ever made. The O.P.R Plan 251 Transistor MP honors this legacy while adding modern enhancements that deliver even greater fidelity.
The Capsule: A Nod to Iconic Sound
At the heart of every great microphone is its capsule – and the O.P.R OP12 capsule is no exception. Meticulously modeled after the legendary AKG CK12, this complex design set a new standard for audio fidelity during the golden era of sound. Even by today’s standards, its performance is unmatched – until now.
The Circuit: Classic Meets Contemporary
The circuit design is minimalist yet powerful, featuring a transformer-coupled, single-transistor setup inspired by the renowned U87i – the studio workhorse for over fifty years. With premium components throughout, the O.P.R Plan 251 Transistor MP delivers exceptional audio fidelity, faithfully capturing the sonic character of the original 251 while offering the immediacy and detail only a transistorized circuit can provide.
Portable Excellence in Sound
The O.P.R Plan 251 Transistor MP combines classic sound with modern convenience, offering incredible performance in a portable, phantom-powered format. Whether you're in the studio or on the go, this microphone delivers exceptional quality in any setting.
Includes:
Premium Shock Mount
Carry Case
Price excludes GST