The ecp audio L-2 is a single tube, parafeed, "spud" amplifier for dynamic headphones. The L-2 uses a single high-mu, high-Gm tube for both amplification and output power. The L-2 does not merely use up-to-date parts, it is a thoroughly modern tube circuit design based on the culmination of...

The DSHA-1 is a solid state headphone amp quite unlike any other amplifier on the market. The differential topology uses Lundahl amorphous core input transformers to provide passive noise-free voltage gain selectable to 6dB or 12dB. The novel MOSFET based output buffer couples to the headphones...