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Kronos AV
Kronos AV

Serblin & Sons Frankie Plus Integrated Amplifier (OPEN BOX)
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  • Sale
  • £2,099.00
  • Regular price £2,990.00
  • Available Worldwide Shipping
  • Will be in stock after

 Tribute to Franco Serblin.

"In the wake of what was our first adventure, the integrated Sonus Faber Quid, I dedicate this series to Franco in vivid memory and with the indelible affection that I keep for him who was a mentor to me, a second father." Fabio Serblin.

The Frankie Plus features the exact same specifications as the Frankie, however includes built in streaming module, an USB OTG port ( to playback from
a memory stick or hard drive ) and two digital S/PDIF inputs while keeping the
same phono board of the original Frankie. 

Frankie's amplification module uses an original bipolar transistor circuitry developed and developed in our home.
The circuit, in mixed SMD / TH technology, is built on the heat sink to maximize thermal efficiency and 
minimize  signal paths containing parasitic inductances to the benefit of performance.
The compact module thus obtained is equipped with gold-plated connectors which allow it to be easily separated from the motherboard with a view to future updates or alternative arrangements.

The power supply is entrusted to a generous toroidal transformer equipped with 3 separate secondary windings to serve the various sections of the circuit without causing interference between them.
We paid extreme attention to the realization of the transformer to make it absolutely silent.
The choice of class II insulation, therefore without earthing, also makes it easier to insert Frankie into the audio chain by avoiding ground loops that sometimes afflict class I appliances.
Downstream of the transformer we have voltage regulators at discrete components with better performance than common commercial regulators in terms of noise and transient response.

Golden stairway
The delicate function of the volume control is entrusted to a passive network, a bank of fixed resistances switched by relay with a 127-step scale.
This solution offers superior audio quality to both analog and digital potentiometers.
A perfect tracing between the channels throughout the attenuation arc and the consistency of the performance in the long term is also guaranteed.

The PHONO preamplifier accepts MM and MC heads and offers a wide range of adjustments for the perfect adaptation of any model.
The MC input has a stage dedicated to discrete components.
The final power stage is protected by short circuit and overload by a precise and fast optical sensor which has no impact on the audio but intervenes, if necessary, only by disconnecting the load until the normal operating conditions are restored.

  • Output power: 2x 75w / ch 8 ohm, 2x 110w / ch 4 ohm.
  • Original circuit Phase / Serblin & Son.
  • Inputs: CD XLR, CD RCA, AUX (RCA and 3.5mm jack), PHONO.
  • PRE-OUT output.
  • Phono MM / MC with 24 combinations of resistance / capacity / gain.
  • USB-A 5V socket for powering external dongles.
  • Auto standby after about 20 minutes of absence of input signal.
  • Stand-by consumption <0.5w (compliant with the Ecodesign directive 2009/125 / CE).
  • Supply voltage (220-240v / 50-60hz).
  • Remote control on smartphone (any)
  • Dimensions mm: 430 x 317 x 78 (WxDxH) including protruding parts.
  • Net weight: 12kg.

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!

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