Neumann M269c #5595 (Vintage)

A variant of the renowned Neumann U-67, the M 269c stands as a distinguished large-diaphragm, multi-pattern tube condenser microphone, born out of Neumann's ingenuity to cater to the specific requirements of the German broadcast market.

To adhere to these standards, Neumann implemented key modifications to the foundational U-67 design:

Tube Replacement: The original EF86 tube in the U-67 was exchanged for an AC701 (aka AC701k) triode vacuum tube, aligning with the broadcast voltage specifications.

Pattern Selection Innovation: The conventional "Omni" and "Figure 8" positions on the pattern selection switch were replaced with a remote-control feature labeled 'F.' This innovation allows for the remote control of the microphone's pickup pattern through the switch on the power supply, offering continuously-variable pattern selection.

RF Shielding Enhancement: The M 269c incorporated RF shielding into the plug for improved performance.

The microphone features two Cardioid modes: one selected directly on the mic, and another accessed by setting the mic switch to 'F' and the PSU switch to Cardioid. The mic-switch "Cardioid" mode disconnects the rear diaphragm of the K67 capsule, reducing the mic's voltage requirement and allowing compatibility with a PSU intended for Neumann's "miniature" microphones. This Cardioid mode exhibits a 4dB higher sensitivity than the remote-selected Cardioid mode.

The K67 capsule, introduced specifically for the U-67 just two years prior, marked a milestone as Neumann's first dual backplate capsule. Unlike its predecessor, the K47 capsule, which employed a single shared backplate, the dual backplates of the K67 facilitated independent tuning of the two diaphragms before their integration into a unified capsule.

Featuring a special circuit within the amplifier, the M 269c uniquely attenuates all frequencies below 30Hz, while faithfully reproducing frequencies above 40Hz linearly. For those seeking an extended low-frequency response, the microphone amplifier's capabilities can be expanded to below 20Hz by adjusting the jumper "S-2" within the amplifier itself.

Manufactured from 1962 to 1973, the Neumann M 269 remains an enduring testament to precision engineering and technological innovation in the realm of professional audio equipment.