Linear Tube Audio - Audiophile Tube Amps & Headphone Amps

The Linear Tube Audio Difference

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Low Maintenance

Auto-biased tubes, long tube life, and advanced protection circuitry make our tube amps easy to own and enjoy.

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Long Tube Life

Tubes last 2–3 times longer and run much cooler than in traditional tube amplifiers.

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Wonderful Warranty

3-year transferable warranty on all products. Tubes are covered for a full year.

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Friendly Support

Reach real humans quickly — often within minutes — via phone or email.

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30-Day In-Home Audition

Try any LTA product in your system for a full month — risk-free.

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American Craftsmanship

Hand-built by skilled technicians and music lovers in Takoma Park, Maryland.

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Award-Winning Sound

Honored by Stereophile, The Absolute Sound, and Part-Time Audiophile.

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Extended Burn-In

Every product is burned in for 168 hours — sounds great right out of the box.

Featured Products

MicroZOTL Preamplifier Level 3

A high-performance preamp with ZOTL technology for unmatched clarity and linearity.

From $5,950.00

Aero DAC

High-resolution digital-to-analog converter with audiophile-grade components.

From $3,950.00

Z40+ Integrated Amplifier

40 watts per channel, ZOTL design, perfect for high-efficiency speakers.

From $7,650.00

Velo Headphone Amp / Preamplifier

Dual-function amp with exceptional dynamics and transparency.

From $2,900.00

ZOTL40 Reference+ Amplifier

Reference-grade power amplifier with extended bandwidth and ultra-low noise.

From $6,800.00

LPS+ Linear Power Supply

Dedicated linear power supply for cleaner power and improved dynamics.

From $650.00

Z10e Electrostatic Headphone Amp

High-voltage amplifier designed for electrostatic headphones.

$6,950.00

Ray 6SN7 Tube Upgrades

Premium vacuum tubes for enhanced performance and longevity.

From $552.00

View All Products

What is ZOTL?

Linear Tube Audio’s amplifiers are based on David Berning’s patented ZOTL (Zero Hysteresis Output TransformerLess) technology — an output transformerless design that delivers unmatched transparency, realism, and bandwidth.

For a technology to be patented, it must be “new, useful, and non-obvious.” ZOTL achieves what traditional tube amplifiers cannot: the liquidity and linearity of tubes, combined with the detail and speed of solid-state.

“The quietest amp I have ever heard; not the quietest tube amp, but the quietest amp.” — The Audio Beatnik

Learn more about ZOTL technology →

Crafted with Passion in Maryland

Every Linear Tube Audio product is designed and hand-built in our workshop in Takoma Park, Maryland, by a team of technicians who are also musicians, audiophiles, and music lovers.

Our chassis are designed by the award-winning industrial design firm Fern & Roby in Richmond, Virginia, featuring low-resonance aluminum construction, brass touch buttons, and precision-machined panels.

We believe in building products that not only sound incredible but are built to last — supported by a 3-year warranty and a 30-day in-home audition.

3-Year

Transferable Warranty

30-Day

In-Home Audition

168h

Factory Burn-In

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Made in USA

Frequently Asked Questions

What does ZOTL stand for?

ZOTL stands for "Zero Hysteresis Output TransformerLess," a patented amplifier design by David Berning that eliminates the output transformer for greater clarity and bandwidth.

How long do the tubes last?

LTA tubes typically last 2–3 times longer than in traditional tube amplifiers due to optimized operating conditions and advanced circuitry.

Do you offer a warranty?

Yes. All LTA products come with a 3-year transferable warranty. Tubes are covered for one full year.

Can I audition equipment at home?

Absolutely. We offer a 30-day in-home audition on new gear so you can experience it in your own system.

Get in Touch

Have questions about our products or want to schedule a demo? We're here to help.

Call us: +1 301-448-1534
Email: hifi@lineartubeaudio.com
Visit: 7316 Carroll Ave., Takoma Park, MD 20912

In-person visits by appointment only. UK & EU customers: contact paul@sooraudio.com via Soor Audio.

Visit Official Website