Warm Audio WA-47JR Fet Condenser MicrophoneWARM AUDIO WA 47jr Like Father. Like Son. The WA 47jr is an FET transformerless version of the highly renowned classic 47 microphone that has been used on countless hit records for the last 50+ years. The WA 47jr utilizes the same "true '47" k47 style capsule found in our flagship WA 47 tube condenser microphone. The WA 47jr is fully discrete, has 3 polar patterns and is designed for pro studio, home studio, live, and broadcast applications. The WA