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Linear Tube Audio
High-fidelity tube amplifiers & DACs based on David Berning’s patented ZOTL technology. Made in Takoma Park, MD.
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Linear Tube Audio (LTA) designs and hand-builds high-fidelity tube amplifiers and DACs in Takoma Park, Maryland. Since Mark Schneider founded LTA in 2015, our mission has been to create exceptional, exciting audio products that put you “in the room” of the original performance. Every LTA product is built around David Berning’s patented ZOTL (Zero-hysteresis Transformerless Output) technology. ZOTL gives you tube magic and realism together with the detail, transparency, and control you’d expect from solid state. It’s not your grandfather’s tube amp. What we offer: DACs: the Aero+ and Aero+ SE, our R2R tube-output DACs Integrated amplifiers: Z10e, Z40+ Integrated and ZOTL Ultralinear+ Integrated Headphone amps: Velo and Z10e Preamplifiers: Velo, MicroZOTL Preamplifier Level 3 and our flagship Century Balanced Preamplifier Power amplifiers: ZOTL40 Reference+, ZOTL Ultralinear+, and our flagship Century Monoblocks The LTA difference: Built by hand: our experienced team designs and builds each unit by hand in the Maryland, working collaboratively with David Berning. Burned in for a week: every product runs for a full 168 hours before it ships, so it sounds great right out of the box. Backed by us: every product has a 3-year warranty and a 30-day in-home audition. Easy on your tubes: ZOTL runs tubes at low currents, so you can skip the frequent retubing of traditional tube amps. Recognized: Stereophile, The Absolute Sound, and Part-Time Audiophile have given our products top honors.