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Kronos AV
Kronos AV
Pro-Ject Audio Systems
Pro-Ject Audio Systems are widely recognised as one of the finest turntable manufacturers in the world. Their mission is simply to produce the best sounding stereo analogue components at the most competitive prices possible. The current series spans a wide range of price points, with a variety of products targeted to key demographics or to accommodate the modern listener’s unique requirements.
In 2016, Pro-Ject marked their 25th anniversary year with the release of a turntable that combined traditional styling with modern technology; showing their innate ability to keep turntables fresh and interesting at a time when popularity of the vinyl format was at a previously unprecedented level. The Classic proudly sits in the middle of a multi-award winning range of turntables that manage to combine sound performance with the latest technologies and unrivalled style at every level.
Pro-Ject are also obsessed with the importance of stereo playback systems. With modern audio systems often bringing speakers either very close together or into a single enclosure, the real impact and importance of true hi-fi stereo is being lost. That’s why everything Pro-Ject create is made with pure stereo applications in mind; bringing back the true emotional importance of music to audio enthusiasts around the world.
Based in Vienna, Austria, all Pro-Ject Audio Systems turntables are made by a highly skilled workforce with great skill, care and attention in their central-European factory.

Pro-Ject Power Box RS Phono Power Supply
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  • Sale
  • Regular price £449.00
  • Available Worldwide Shipping

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Power Box RS Phono: Phonoklang on the highest level!

At Pro-Ject Audio Systems, we think that the power supply is a very important part of the audio chain and makes a significant contribution to the sound quality of an audio device. On the one hand to ensure the maximum reproduction quality and on the other hand the complete separation of the phono preamplifier from the mains, the Power Box RS Phono with battery power supply was created. The power supply quality is particularly crucial if the signals to be amplified are very small. A low-output MC pickup typically has an output voltage of 0.2mV = 0.0002V. Such signals are extremely sensitive to interference signals from the power grid.


How does the Power Box RS Phono work?

If the Power Box RS Phono is connected to the Phono Box RS and switched on, then only the battery connection to the Phono Box RS exists. Since the power supply unit and the charging unit are physically separated, faults from the mains supply can not be harmful to the sound. If the battery charge falls below a certain level, further playback could damage the batteries. Therefore, the charging electronics is automatically active, the charging status is indicated by LEDs on the front panel. The playback will continue, but the advantage of a complete disconnection from the power grid is not for the period of loading. Although this is the biggest advantage temporarily not exist, the battery acts as a filter and the sound quality is still far better than with the standard power supply. Once the batteries are fully charged.

  • Cleanest possible power supply for Phono Box RS
  • Prevents the entry of harmful interference from the mains into the Phono Box RS during playback
  • Advanced lithium polymer batteries (1 per channel each)
  • Playback time about 4 hours
  • Charging time about 4 hours
  • Optimized battery life thanks to intelligent microprocessor-controlled charging electronics
  • Status indication via LEDs on front
  • Available in silver or black
output voltage from +/- 14.8V to +/- 16.8V,
depending on the state of charge
Battery type and capacity Li-ion, 2000mAh
charging time about 4 hours
(longer if Phono Box RS in use)
Play time about 4 hours
Power supply included 20V / 3000mA DC (worldwide use possible)
Dimensions W x H x D 201 x 72 x 195mm
mass 2030 g without power supply

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. 

We have several deomonstation areas in both of our branches. Please give us a call on 03435236169 or email to enquire about hearing products at your local branch. 

Please always contact us before to make sure the product(s) are available

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!

To find out how much your HiFi is worth... Click Here

If you have any question, please feel free to call us on 03435236169 or email