Wunder Audio ELA M 251

Tube

The Wunder Audio ELA M 251 tubes are hand tested NOS GE 5-star 6072A:

• 6.3 volts DC filament voltage,
• 120 volts DC plate voltage

The GE 5 Star 6072A is one of the finest 6072 tubes ever made. In fact, the GE 5 Star 6072A’s are the only 6072 (12AY7 variant) tubes recommended in high-end applications. The primary special purpose of a 6072 is its super low noise and microphonics. That is why these tubes are important in microphones and first stages of high-end audio equipment. These special purpose dual triode tubes are equipped with spiral wound heater filaments to eliminate hum and have to pass rigorous screening for noise levels. Wunder Audio is using a super rare tube that was made in the 1960s for “Lear Aerospace” worth $500 on the vintage market. It’s a GE 6072 Five Star that was specially made, and hand-picked for this aerospace company. Wunder Audio has acquired a Master carton of 100 of these tubes and that’s why they are making their Elam clone limited to only 100 pieces.

Technical Data

• Frequency Range: 20 to 20,000 ± 2 dB
• Directional Characteristics (3 different positions):
  - Omni-directional.
  - Cardioid: better than 20 dB front-to-back ratio at 180° sound incidence,
  - Bi-directional: 20 dB front-to-back ratio
• Sensitivity: 1.0 mV/µbar (–60 dB re 1 V/dyne/cm2), unloaded (200 ohms)
• Equivalent Noise Level: less than 20 dB
• Tube Complement: 1 x 6072, 6.3 volts DC filament voltage,
• 120 volts DC plate voltage

See the Wunder Audio ELA M 251 product page for more detailed information.