Icon Audio LA6TX Valve Pre Amplifier
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  • Regular price £6,599.00
  • Available Worldwide Shipping

Transformers sound best!

Well made audio transformers can provide perfect coupling in a hi fi system. Free from the “mechanical” sound of solid state and the deficiencies of output capacitors, they can make reproduction more vibrant and focussed.

The LA6tx uses four very special line level balanced input and output transformers, developed and manufactured in our laboratory over several years to give what we believe to be the finest sound.

Two are used for input and two for output. Enabling a true balanced signal path if required. This circuit also works equally well with single ended signals.

At the heart of the LA6tx is the WE designed 205D made by our colleagues at Psvane. Dating back to the early 1930s original versions now change hands for around $2,000 each. This venerable design has a unique “open frame” design and a sound quality which is like no other.

The LA5tx is designed for the very best transistor and valve power amplifiers where musical purity is required rather than starkness. 

Limited information was available at the time of going to press. More detailed information will be available in due course. 


A simple low gain pre-amplifier using transformers and the unique WE 205 valve where the emphasis is very much on the ultimate sound quality using transformers. Designed for the very finest systems where listening quality takes precedent.

  • Icon Audio custom output transformers
  • Icon Audio custom input transformers
  • All hand wired point to point
  • ALPs Blue motorised volume pot.
  • Stepped attenuator option
  • All Triode simple design
  • 2x WE 205D
  • 2x 6SN7 valves
  • 274B Valve rectifier (GZ34/5AR4)
  • Double Choke HT supply
  • DC heater supply
  • Signal to noise level TBC
  • Freq response 13Hz-20kHz +0 -1db TBC
  • THD typically less than 0.2% (1v output) TBC
  • Gain 2.6x, 8.3db
  • Max output level 12v for 4.6v input
  • Low output impedance of 250Ω TBC
  • Suitable for power amps 100mv-2v sensitivity
  • Audiophile metal film, & wire-wound resistors
  • Solen/SCR audio capacitors (Jensen option)
  • Silver PTFE audio cable
  • Gold plated Input terminals
  • Four line inputs (balanced and SE)
  • 220/240volts 75watts TBC
  • Comprehensive manual supplied
  • C E compliant
  • Size and weight TBC

(TBC = To Be Confirmed. Specifications subject to change)

Various valve and capacitor upgrades are available, contact us for more information.

(Specifications subject to change, errors & omissions excepted. General July 2018)


We are still delivering orders as normal. When your order ships you will still receive tracking details. For UK shipments, Our couriers have procedures in place to ensure deliveries are arriving as quickly & safely as possible. Drivers can now sign for your parcels, however will notify you that they have arrived, in order to ensure you receive your parcel. Signing for the parcel has now been stopped temporally for hygiene reasons. Drivers are also working with customer instructions, so you can ask them to leave the parcel in a safe place (doorstep etc...) if you prefer not to come into direct contact with the driver.

Express Deliveries

Express Delivery is FREE on all orders over £50. Express Delivery offers delivery in 24-72 hours from time of purchase. We use premium couriers for this service, mainly DPD & Royal Mail. DPD will offer you a one hour window for delivery to make sure someone is at home, or you can reschedule the delivery if no one is around. 

Standard Deliveries

Here at Kronos AV, we have vast experience with e-commerce sales. Making sure that your parcel arrives undamaged is a huge priority for us. That’s why at Kronos AV, we only use premium couriers for all our orders. All our parcels are shipped with DPD or Royal Mail and are always sent Signed For to make sure it gets to the right person. 

If for any reason your parcel does arrived damaged, please get in touch, and we will be happy to get everything resolved for you. We are always on hand to help!


Delivery is FREE on all orders over £50. In order to offer FREE delivery to UK customers, we use several premium couriers to ensure your delivery arrives safe.

Most large orders (over 2kg) ship using DPD or DHL courier and smaller orders (under 2kg) by Royal Mail signed for services.

The most appropriate courier will be chosen for the items ordered to ensure the quickest possible delivery.

We can offer very generous trade in offers across the majority of our product range. 

Why not ask and see how much you HiFi is worth!

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If you have any question, please feel free to call us on 03435236169 or email support@kronosav.com