SKU: 50219855241

Universal Audio Bock 251 Tube Condenser Microphone w/PS

Sale price$3869.55 Regular price$4299.50
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

Universal Audio Bock 251 Tube Condenser Microphone w/PSSpecial Order Universal Audio Bock 251 Tube Condenser Microphone w PS Reach Sonic Nirvana The UA Bock 251 is our flagship large diaphragm tube condenser mic, giving you the smooth, open tone of the iconic ELAM 251,* considered by many to be the greatest vocal mic ever made. Each microphone is handmade in Santa Cruz, California, to the exacting specifications of worldrenowned mic designer David Bock. Add Handmade Magic to your Studio The UA Bock 251 is

Special Order

Universal Audio Bock 251 Tube Condenser Microphone w/PS

Reach Sonic Nirvana

The UA Bock 251 is our flagship large-diaphragm tube condenser mic, giving you the smooth, open tone of the iconic ELAM 251,* considered by many to be the greatest vocal mic ever made. Each microphone is handmade in Santa Cruz, California, to the exacting specifications of world‑renowned mic designer David Bock.

Add Handmade Magic to your Studio

The UA Bock 251 is David Bock's loving interpretation of the classic 251 microphones he studied and maintained as chief technical engineer of the world's top recording studios for two decades. Handbuilt at UA’s Custom Shop in Santa Cruz, California, the UA Bock 251 mic puts "golden unit" sound at the heart of your recordings.

Rich Tube Mic Sounds, with Updated Sonics

With its German-made CK12 capsule and large output transformer, the UA Bock 251 gives you extended low‑frequency response down to 10 Hz and higher SPL capabilities versus vintage 251 microphones.

Built for a Lifetime of Harmonious Recording

Handwired using premium components, each UA Bock 251 is built and tested to David Bock's exacting specifications. With its vintage-inspired case, robust shock mount and accessories, this mic spares no expense to last a lifetime.

 

Large-diaphragm tube studio condenser mic, lovingly handmade at the UA Custom Shop in Santa Cruz, California

Iconic, "golden unit" mic sounds with modern enhancements by David Bock

Switchable omnidirectional, cardioid, and Figure-8 polar patterns

German-made CK12 capsule and Cinemag transformer

Frequency Response: 10 Hz - 18 kHz, ± 2 dB

Max SPL: 118 dB SPL, 1% THD

NOS ECC85 tube

Requires included UA Bock 251 PSU true linear power supply

Premium vintage-style suitcase

 

Polar Pattern

Switchable Omnidirectional, Cardioid, and Figure-8

Capsule

1” diameter
Dual asymmetrical backplate
Dual diaphragm CK12 type

Tube

New Old Stock ECC85

Maximum SPL

118 dB SPL, 1% THD

Adjustable Controls

Polar pattern selector

Frequency Range

10 Hz - 18 kHz +/- 2 dB

Sensitivity

-34 dB (19 mV) ref 1V at 1 Pa, 1 kHz

Output Impedance

150 Ohms

Recommended Load Impedance

> 1.2K Ohms

Dynamic Range

100 dB

Signal-to-Noise Ratio

76 dB

Power

UA Bock 251 PSU true linear, 115V (default) or 230V operation

Connectors

Tuchel (mic), 3-Pin XLR (power supply)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 50219855241

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AZAKELS
Natrona Heights, US
★★★★★ 4
Sleek and Stylish
SUPER HAPPY. ARRIVED FAST, CONFIDENT IN IT'S LOOK. DESIGNED WELL, FIT IS CORRECT TO SIZE, SERVES TO BE IN MY TOP OF APPAREL BUYS FROM AMAZON. COMPLIMENTS BLUE JEANS AND MY BLUE EYES VERY WELL. WITH THE ITALIAN LONG SLEEVE WHITE DRESS SHIRT I'M OPTIMIZED...ALSO A SOLID BLACK SHIRT UNDERNEATH GOES WELL TOO. FOR THE PRICE THIS WAS A PERFECT CHOICE.
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Reviewed in the United States on October 25, 2023
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Amazon Customer
Waukegan, US
★★★★★ 5
Great product and value for money
Size: XX-Large, Color: Army Green
Value for money is great. Coat really absorbs cold. Just need to test if it water resistant. Laundry / cleaning of the product is also easy with instruction on the label.
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Reviewed in the United States on June 2, 2025
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Natalia García
Phoenix, US
★★★★★ 5
Igual a la foto
Era para mi pareja, y le quedó muy bien, tuve que pedir M, porque la L era muy grande.
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Reviewed in the United States on February 5, 2026
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RODERIC CAREY
Boise, US
★★★★★ 1
To small
Not true too size. Too small
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Reviewed in the United States on February 5, 2026
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Reluc Amazon Customer
Massapequa, US
★★★★★ 3
Strange fit - Returned quickly
MEDIUM: sleeves very tight for a man, shoulders roomy, waist TINY and hips even tighter
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Reviewed in the United States on March 23, 2026

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