Universal Audio UA Bock 251

UA Bock 251

Sound without compromise

UA Bock 251 is our flagship wide-diaphragm tube condenser microphone, offering the smooth, airy sound of the iconic ELAM 251,* considered by many to be the greatest vocal microphone ever made. Each microphone is handcrafted in Santa Cruz, California, to the exacting specifications of renowned microphone designer David Bock.

Add the magic of a handcrafted microphone to your studio

UA Bock 251 is David Bock's passionate interpretation of the classic 251 microphone, which he studied and maintained for two decades as chief technical engineer of the world's top recording studios. Hand-built in the UA Custom Shop in Santa Cruz, California, the UA Bock 251 microphone brings sonic excellence back to the center of your recordings.

Full valve sound with a modern twist.

Thanks to the German-made CK12 capsule and large output transformer, UA Bock 251 offers extended low-frequency response down to 10 Hz and ability to withstand higher pressures than vintage 251 microphones.

Built to deliver an uncompromising recording life

Hand-wired with premium components, each UA Bock 251 is built and tested to David Bock's rigorous specifications. With its vintage-inspired case, sturdy shock mount and accessories, this microphone is built to last a lifetime.