Peluso Microphone Lab 22 251

Peluso 22 251 is a large-diaphragm tube microphone modeled on the iconic Telefunken ELA M 251, sharing its capsule and tube concept with the P-12 but built on a different circuit topology that delivers noticeably higher gain.

Same Capsule Family, Different Character Than the P-12

A dual-diaphragm 34mm capsule with gold-coated Mylar and a 6072A tube are shared between both models, but the 22 251 delivers roughly 7dB more gain thanks to a different circuit design — translating into a quieter noise floor and a stronger signal on quiet sources.

A Custom T/14 Transformer for the Classic Tone

A proprietary, hand-wound output transformer in a T/14 configuration builds the smooth, slightly darker tone associated with the original ELA M 251, favored on female vocals and acoustic instruments that need a natural, unforced top end.

The hand-wound T/14 transformer is a fully in-house Peluso component rather than an off-the-shelf part sourced externally — one reason the model's character is difficult to copy.

KEY FEATURES

• 34mm dual-diaphragm capsule (gold-coated Mylar)
• 6072A vacuum tube
• Custom T/14 output transformer
• 9 polar patterns
• Higher gain than the Peluso P-12 (approx. 7dB)
• Character inspired by the Telefunken ELA M 251

TECHNICAL SPECIFICATIONS

• Frequency response: 20Hz-24kHz
• Output impedance: 200 Ω
• Max SPL: 144 dB
• Noise level: 12 dB(A)
• Sensitivity: 14 mV/Pa
• Dimensions: 52 x 225 mm
• Weight: 620 g
• Capsule diaphragm: gold-coated Mylar
• Included: power supply, cable, mount, transport case