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Kronos AV
Kronos AV
JE Audio
JE Audio was found in Hong Kong on 2007 by John Lam. The company has a strong commitment to design and manufacture the finest quality audio electronics. Our dedication to lifelike reproduction of music has led to many technical innovations, awards and great reviews. We are proud to be different. We have our own idea about what is imperative and how things should be done. We are obsessive about details, and would go the extra mile to develop new audio amplifying topologies and to select the most suitable components for the applications.

JE Audio Reference 1 Tube Line Stage Preamplifier
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  • Regular price £7,999.00
  • Available Worldwide Shipping

Reference 1 is the first reference class line-stage preamplifier offered by JE Audio. Reference 1 employs all-tube pure Class-A single-stage wideband balanced amplifier design. 6H30Pi vacuum tubes are used for signal amplification. No semiconductor devices are used in the signal path. Because of employing just one single-stage, Reference 1 has a lower phase shift compared with conventional multi-stage feedback amplifiers. Additionally, no global feedback is used so that the purity of the musical signals is preserved.

Reference 1 line stage preamplifier is equipped with a proprietary design digital potentiometer for volume control. The digital potentiometer is designed in such a way that it only attenuates the incoming signals but does not affect the signal integrity.

Reference 1 line-stage preamplifier presents lifelike musical quality in terms of transparency, dynamic and extraordinary imaging capability. It will meet any demands for high performance audio.

"if what you’re looking for, first and foremost, is great sound -- specifically, great tube sound -- give JE Audio’s Reference 1 a serious audition. It’s an incredibly good preamplifier for a reasonable price. Its build quality is excellent, its feature set very good, and its sound is out of this world. It’s my top recommendation for preamplifier pleasure for under ten grand." Doug Schnedier of SoundStage. Reference 1 preamplifier received the Reviewers' Choice award. (Click here to read the full review.)




(Click the icon to read the full review.)



Class-A single-stage wideband balanced amplifier

6H30Pi x 4

< 0.05% (@ 2V/100k ohm)

18dB (measured when the volume control is bypassed)

Total 99 steps
+0, -3dB from 10Hz to 500kHz
(measured when the volume control is  bypassed)                            

> 130k ohm                                                   


1.5k ohm

> 90dB

H=175mm, W=460mm, D=390mm

14.5 kg / 32 pound

• Come with a remote control
• Six XLR inputs and 3 XLR outputs
• Phase invert and non-invert selectable
• Volume control for L-Ch and R-Ch can be set independently
• Cumulated operation time of the preamplifier is
continuously stored and can be displayed

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