Genalex
Gold Lion ECC81 / B739 / 12AT7 Preamp Vacuum Tube
$115.58 USDFeatures
Among the rarest vacuum tube types available
Produces a large, detailed soundstage
Features an expressive midrange reproduction
Delivers deep, tight bass response
Provides smooth extended high-end performance
Includes balanced sections for optimal performance
Gold-plated pins for superior connectivity
Faithfully recreates the sound signature of the original vintage tubes
What's in the Box?
Original Genalex Gold Lion ECC81/B739 vacuum tubes are considered the best 12AT7 preamp tube types ever made. They are also among the rarest types available. They exhibit a large, detailed soundstage characterized by an expressive midrange, deep tight bass, and a smooth extended high end. The reissue Genalex Gold Lion ECC81/B739 recreates the sound signature of the original. This tube features balanced sections and gold-plated pins.
Moon Audio Tube Testing Process
Our high-end audio systems achieve sonic purity through the use of carefully selected NOS vacuum tubes. We take time to search for NOS tubes, understanding their unique potential for audio reproduction. Each tube is rigorously tested using legendary HICKOK 800K 600K Dynamic Mutual Conductance Tube Tester and TV7-A/U Vacuum Tube Testers to measure critical parameters, including mutual conductance, emission, and gas levels. By precisely matching tubes based on these measurements, we deliver balanced, dynamic, and lifelike audio that elevates your listening experience to an art form.
| Parameter | Specification |
|---|---|
| Physical Specifications | |
| Tube Type | Preamp, dual triode |
| Tube Equivalents | 6922, E88CC, 6DJ8 |
| Construction Specifications | |
| Pin Construction | Gold pins |
| Interior Plating | Gold plating on tube's interior for improved performance |
| Performance Specifications | |
| Sound Characteristics | Gentle, slightly relaxed top end without excessive sparkle Great bass and low noise and microphony |
| Testing Parameters | Noise, microphonics, and triode balance |
| Grading Options | Platinum-grade or gold-grade options available |
| Matching | Available with precision matching for enhanced performance in phase inverters and balanced amplification |
| Application Specifications | |
| Suitable Applications | Various preamplifier and audio amplifier circuits Especially where low noise and balanced amplification are desired |
| Specialized Use | Phase inverters and balanced amplification circuits |
