Headphone Transducers or HOT for short, is the new UEF headphone filter that dramatically improves headphone / amplifier performance.

Nearly one year in development, HOTs were voiced with Audeze LCD-3 and Sennheiser HD 800 stereo headphones. Amplification included a Luxman P-700 solid-state amplifier and numerous tube based headphone amplifiers. When HOT is used with your favorite cans you hear sound that gets out of your head as well as smoother more articulate highs with improved bass. If you¡¯ve been looking for more holographic sound with smoother highs and increased resolution, you¡¯ve gotta try HOT!

HOT632
Synergistic Research HOT – Headphone Optimized Transducer

Nothing beats a HOT set of cans:
Whether you¡¯re a seasoned headphone fanatic or an open air two-channel audiophile looking to explore the magic of personal audio, HOT maximizes your enjoyment with increased resolution and smoothness in the world¡¯s most holographic headphone experience.