Linear Tube Audio

Bring Music To Life

Appointed representative for Europe/Schengen territory


ZOTL 10 integrated.

CNET / Steve Guttenberg said about our Zotl 10 Integrated:
There's nothing vintage about the sound; to the contrary the Z10 is a high-resolution champ, big on transparency and presence.



Click a picture for more info.



"Many manufacturers claim that their products are “innovative,” but few merit that description more than the amplifiers designed by David Berning. His recent power amps have used a circuit he describes as a “unique Impedance Converter" that replaces the traditional audio power output transformer and greatly extends and improves amplifier performance. We call our technology ‘ZOTL’ for Zero-Hysteresis Output Transformerless. Operating at a fixed high frequency without traditional audio output transformers, the ZOTL Impedance Converter eliminates the frequency-dependent performance limitations inherent in all transformer-coupled tube amps."

“Berning amplifiers using the ZOTL technology exceed the performance of traditional OTL tube amplifiers by properly matching the tube impedance to that of the speaker. Berning amplifiers depart from traditional OTL amplifiers in that they do not require a large number of hot power tubes to supply adequate current for driving speakers.” Soundstage Ultra - Vade Forrester/2014

Our amplifiers is not just another traditional vacuum tube amplifier. The technology is unique. In more than one way we call it a "green" amplifier.

Why not read story told by the inventor himself - Mr. David Berning?

Click here and read about the amazing ZOTL technology.

Long tube life, low power consume, low weight, very low maintenance, wide frequency range, organic, dynamic and detailed sound signature - all packed in a beautiful case designed by Fern & Roby.
LTA's amplifiers are true icons designed to stay with you for years.



The auxiliary equipment we use in our company is chosen; not only because of their outstanding quality but also because

They have the user in focus.


We stand 100% behind these brands and will without hesitation give them our unconditional recommendation. Jump direct to our webshop for more info.

Or click the logos below.

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Question: "Which other equiptment do you use?" Reply: "Well we use a wide selection of gear that match the quality of LTA's amps and show their versatility. There are many good brands in the market and our selection changes from time to time. As an extra feature, we can change the acoustics in the demo studio so it emulates different home scenarios. If you by any chance is in our neighbourhood then please book an appointment. If you come from far away we can help you book accommodation at the beach hotel next door. Take a extended weekend, listen to some cool high fi and while you are here enjoy our city and beach. You are of course welcome to bring your own equipment if you need a reference of your own."

Question: "Is it possible to buy the gear you use in your demo studio?" Reply: "Yes it is possible for most of the brands. You get them factory new. Sometimes we sell some of our demo gear and you can find the items listed in our "Demo & Trade-in" section. There can be a couple of exceptions on non LTA products as ex. local country agreements. But let's have a talk about your wishes and requirements.

Currently we use the following gear: Analogue source - The Wand Master series 9" tonearm, Decca London Gold cartridge & Audio Technica AT-150MLX. Digital sources - streamers: Innuos ZenMini MK3 + LPS. User surface: iPad & Roon. Streaming service: Tidal & Qobuz. CD-Player: Marantz CD5000. Dac: Topping, Holo & MHDT. Speakers: Martin Logan Summit, Mirage M7-Si and Chameleon 152. Cables: Zonotone, Western Electric 16AG, Van den Hul, Tara Labs, Isoda, Monster Cable and mains wire. Power cables & filters: Ordinary “El cheapo” IEC, Puritan Audio Laboratories & Clef Audio Voltage Stabilisator.




In late 2018 Wow Factor started the representation of Linear Tube Audio for the Danish market. In January 2020 we expanded our co-operation to cover all countries in EU/Schengen. In the first part of our relationship with LTA we learned that issues and concerns like warranty, re-export to the USA for repair & upgrades, long-distance shopping, support etc. popped up frequently. It was customers from EU who found us on Google contacting us with these issues. Now with Wow Factor as the EU/Schengen representative, these concerns are now minimized. Wow Factor handle all issues and let you enjoy the music.

At Wow Factor you buy LTA amplifiers on the same conditions as in the US and get them delivered right to your doorstep. Now as LTA's European/Schengen representative we have extend the warranty from 1 to 2 years on LTA amplifiers and 1 year on the tubes.

Like LTA in the USA we also handle additional brands. They can be purchased here either in our bundle offers or as single units. Sign up for our newsletter we will send you relevant offers and information in return. With Wow Factor you will benefit from our plus 30 years in the hifi and pro-audio industry. We have covered, and still do, all aspects from idea, design, research, production, acoustics and delivering true high-quality products that bring music to life. We pursue simplicity because to own a high quality sound system don't need to be complicated - it's a matter of making advanced technology to be the tool to enjoy music in an easy way.

“Simplicity is the final achievement. After one has played a vast quantity of notes and more notes, it is simplicity

that emerges as the crowning reward of art”


Frederic Chopin, composer

Born in 1810, Zelazowa Wola, Poland

Disease in 1849, Paris, France

Here at Wow Factor it is all about music. Let it be live concerts or beats and rhythm bouncing out of our speakers. Our mission is to spread the word about good quality hifi gear.

Everybody can join - no audiophile experience is necessary. Keywords - keep it simple, sublime sound, pleasant design and high quality vs. money. Easy right? It should be because we are not advocating all the technical hot air/snake oil typically found in this trade. We stick to the facts and trust our ears. Do you want to have a tech talk? - no problem - and you can also find detailed info at our website - but in the end, it's all about you and how you feel when listening to your favourite music. 

Exquisite reviews and customer testimonials back it all up.

All this is why we proudly to represent Linear Tube Audio here in Europe/Schengen.

LTA was established in 2015. The company has in its short lifetime gained tremendous success. LTA is today recognized to be in the absolute elite of high-performance audio. Hand-built in Washington D.C/Maryland/USA. Designed by Mark Schneider and David Berning.


The platform in these gems are the patented design named ZOTL- "Zero hysteresis Output TransformerLess".

The company build vacuum tube amplifiers not using the traditional and heavy output transformers. The ZOTL technology does not include the many downsides found in traditional OTL (Output Transformer Less) vacuum tube amps and traditional vacuum tube amps. LTA's amplifiers have the organic sound known and loved from vacuum tubes combined with the wide frequency area, speed and details from solid-state amplifiers. A match made in heaven.

Before Mark Schneider founded Linear Tube Audio in 2015. He came from an extensive engineering career that included management, manufacturing, and product design – including being the architect behind the fastest document scanner in the world – Mark was forced into early medical retirement. After a remarkable, multi-year recovery, he decided to commit himself to the passion that started a long time ago with a pair of 3-panel Magnepans, a Thorens turntable with an SME arm, and some SAE amplifiers. He opened Urban Hifi and here he sold amplifiers made by David Berning. The MicroZOTL or the nicknamed "Blue box" sold quite well. It was suddenly discontinued. After app. 8 years still in demand motivated Mark Mark Schneider to contact David Berning and not much later Linear Tube Audio was founded.

Linear Tube Audio debuted by introducing an improved version of David Berning’s original MicroZOTL named MicroZOTL2.0. For the amps following, Mark and David have worked collaboratively, with David designing the core amplifier circuitry to Mark’s specifications, and LTA creating the rest of the unit. 

Since the debut of ZOTL technology, no one else has been able to successfully manufacture David Berning’s complex designs. It was this uniqueness and complexity that attracted Mark to producing ZOTL amplifiers specifically, in addition to their spectacular sound. Each amplifier requires hours of hand-building, which is currently done by Mark and his team in their Washington, DC workshop.

David Berning personally reviews initial units to ensure that the build quality meets his extremely high standards.

Snap shots & another fun day at the office.
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