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Kronos AV
Kronos AV
The founder of Audiopax, Eduardo de Lima, began in audio in his teens with the production of his first loudspeakers and amplifiers, something that led him a few years later to design his first SET amplifier using a 300B tube. This achievement was, according to him, the main event of his career - the musicality and naturalness of that strange little amp exceeded all expectations, inspite of some limitations in the high and slow and poorly controlled bass (characteristics normally found in average 300B amplifiers) the midrange frequency band was simply magical. So, Eduardo de Lima spent the following years trying to explain and, mainly, control the elements that produce that magic, to achieve it without the limitations imposed by a single device.

AudioPax Model 5 (Gen 4) Preamplifier
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  • Regular price £7,599.00
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Audiopax preamplifiers redefine the role of these components in an audio system, materialising in a direct and controllable way the concept of “synergy” between its components. They are the only preamplifiers in the world to include the Timbre Lock® technology, allowing the you to set the minimal perceived distortion in a system as a whole and whilst listening, thus escaping from the conventional concept of measurement in individual components. Thus its inclusion in systems is often described as “magic”, revealing all the nuances, dynamics, intentions and emotions of the music and musicians, something usually only found in live performances.


Other features and innovations also contribute to the maximum performance of systems in which they are inserted: the absolute lack of feedback, an unprecedented and a unique MOSFET topology, where the component characteristics are effectively used to work very close to the valves (many customers consider the inclusion of Audiopax preamplifier as a “tube element” into their systems) and an innovative use of inductive loads (unlike conventional resistive loads), where the final dynamic perceived is raised to the levels difficult to achieve by any other preamplifier on the market. No wonder that the Model 5 accumulates an impressive number of excellent reviews, awards and “Best of the Show” in the world’s top audio shows.

Extended frequency response, exceptional low level resolution, dynamic and visceral tremendous immunity to load variations. Refinement and innovation raise our preamplifiers to the reference category.



Frequency response: 5 Hz – 90kHz (-3dB)

Distortion: 0.08% at 2V (Max gain)

Signal to noise ratio: > 90dB (A – weighted) Ref: 1V.

Gain: 23 dB (High setting) 12dB (Low setting)

Input impedance: < 45K ohms

Output impedance: < 1500 ohms (typical 500 ohms)

Input voltage: 110V, 127V, 220V, 240V.

Dimensions: 43cm x 12cm x 32cm (Chassis)

20cm x 8cm x 18cm (separate power supply)

Weight: Chassis 6kg

Power supply: 2kg.

Options: Balanced Input/output

Special Edition: SE

Finishes: (Sides) Piano Black or Bordeaux red.

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.

There has been no changes to deliveries with Brexit. All deliveries to the UK mainland, Northern Ireland and the Republic of Ireland are operating as normal. No VAT or charges are applicable. 

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