Amazon B-Lab Phono Amplifier
Free Gift

  • Sale
  • Regular price £4,975.00
  • Available Worldwide Shipping

B-lab is still a familiar brand name for all aficionados of the 80s scene when the B-lab preamplifier with included phono stage was a long-time reference device of the legendary German hifi magazine “Das Ohr” (“The Ear”), which was held in high esteem due to its objectiveness (free from manufacturer advertising) and occasionally highly critical reviews. Even then, the innovative circuit designs of Bernward Schulte, who studied both mathematics and physics, raised the eyebrows of those who embraced high-end music playback. Since then, Bernward Schulte has continued to improve his circuitry concepts based on his ingenious basic idea. The MC phono is the result of these efforts, and it is setting a new standard not least due to its solid aluminum case and finest components used. .

B-lab - the phono stage

The B-lab-phono stage combines excellent measured values, especially concerning the accurate adherence to the RIAA curve, with outstanding dynamics and an exorbitant sound stage in both width and depth.



MC-preamplifier board:

The preamp stage employs relatively few components and works in complementary symmetrical Class A mode and, thanks to the idle current concept of the input transistors, with an especially low noise level. It is worth noting that the preamp stage adjusts automatically to the connected MC cartridge by integration of its inductor parameters. In practical terms this means that the usual hunt for the optimal load impedance (e.g. resistors, DIP switches) is a thing of the past. The preamp stage always finds the ideal measurement – for every cartridge!



The incoming signal is equalized in two stages. At first, a parallel feedback circuit equalizes the “uncritical” time constants of t1=318 μs and t2=3180 μs. The following shunt feedback stage provides the equalization of the time constant t3=75μs which is critical for the four-dimensional quality of the sound stage. Both stages are carried out single-ended. Sandwiched between them, an external gain adjustment is accessible by means of DIP switches. It provides 12 stages of volume setting for adjustment to other line level sources (CD, tuner, aux).


Regulated power supply:

The power supply uses Schottky diodes as rectifiers (to minimize losses) and high capacity charging capacitors. Symmetrical voltages are created by two newly developed, discretely assembled voltage regulators, which use an extremely low-noise reference voltage source (Linear Technologies) and an optimized circuitry dynamic and are thereby significantly superior to conventional voltage regulators.


Cases and periphery:

The case is cut out of a single block of aluminum. This is primarily done for reasons of sonic quality, but the device’s visual and haptic appearance also benefit therefrom. The electronics are superbly protected against magnetic interference by the massive case with its separate chambers for circuit board and transformer – without the use of ferromagnetic materials! The electronics are perfectly insulated from microphonics (mechanical stimulation from airborne or impact sound) by means of the high-mass case, which functions together with the vibration damping supporting feet for additional effect. The input and output sockets (RCA) are made out of pure copper and gold-plated without any layer of nickel in between.

All ingoing and outgoing signal paths are realized with solid core pure silver conductors with cotton dielectric. Any required gain adjustment may be achieved by operating the DIP switches on the bottom without having to open the case. Purist design and meticulous workmanship illustrate to the beholder perfectly this product’s phenomenal inner qualities.


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!

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