Articles DHT Tubes Sound So Good A quick synopsis of Directly Heated Triodes. Why they exist, what makes them so unique and how they are used. Why Mass Matters in Audio Racks A solid foundation is key when dealing with vibration sensitive equipment like tubes and turntables. We will look at why steel and stone should be used for audio racks. LCR vs RC RIAA equalization Networks Two ways to get the same result, yet one just sounds better. Why?