YBA Genesis PH 1 Phono Pre-Amplifier

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Genesis PH 1 Phono Pre-Amplifier

Most modern amplifiers today do not have the necessary circuitry built in to drive a turntable. As a consequence a necessity arises to use a phono preamplifier. What this does is to boost the level and correct the frequency response of the output from a moving magnet (MM) or moving coil (MC) cartridge. It will then be compatible with standard line level inputs on the amplifier. Therefore the volume should be approximately the same as other components in the system – i.e. CD player.

The PH1 caters for MM, low output MC and high output MC cartridges. You will note that the selector control on the front panel of the PH1 has only two options (MM or MC) even though this phono preamplifier accepts high output MC. The circuitry has been designed so that it will automatically sense which type of moving coil cartridge is being used and settings will adjust accordingly provided the correct selection is made from the toggle switch on the rear panel.

The power supply of the PH1 is provided by 10 NCR18650 batteries charged via a 24V power adaptor. The power adaptor can remain connected and switched on at all times. When the unit is fully charged it switches off internally. It will automatically switch on when required. Keeping a full charge is ideal.

If you choose to disconnect or switch off the adaptor, be aware of the battery level displayed on the front panel.

YBA manufactures its own MC transformer.

Moving coils are known for their dynamic qualities, definition, wide bandwidth, coupled with great realism of reproduction. These qualities are attributable to the same principle of operation of moving coils that make them ideal generators. This explains their continued success with demanding users.

But their operation is very critical and depends mainly on the charging impedance and adapter, the characteristics greatly influence the electrical behaviour of the cartridge and therefore the quality of the sound reproduced. Any information lost or distorted during this coupling is irretrievable.

The realization of a transformer rather than a pre-preamplifier meets the need to avoid additional distortions, mainly by harmonic 3, specific to electronic sources that can fatigue. On the other hand, the output level of the moving coil is lower by 20 – 30 db than a conventional moving magnet.

It is for this reason that the signal delivered is dangerously close to the noise level of pre-preamplifiers (fuzzy distortion), which masks a part of very low amplitude signals, such as echo, reverb and micro information needed to spatial localization of sound objects.

This phenomenon does not exist with the processors.

The YBA transformer was developed following the usual concept, namely the creation of extraordinary uncompromising product. The research was focused on the synthesis of different original technical principles based on long plays.

Transformer specification required that it:

(1) Ensure a job universality.

(2) Forward all information issued by the phono-player

(3) Be free from any coloration and

(4) Reproduce exceptional dynamics.

Because of its design, the YBA transformer is uniquely suited to meet the different characteristics of moving coil cartridges. It allows for the finest details of a reading to be highlighted at a very high level.

Technical Specifications:
  • Cartridge Impedance: 3Ω to 100Ω
  • Output Impedance: 47kΩ
  • Bandwidth: 10 HZ to150 KHZ
  • Gain: 26 dB
  • Shielding full mu-metal: Double
  • Moving Magnet (MM)  Input impedance 47kOhm 45dB Gain
  • Moving Coil (MC)  Input impedance 2 – 100 Ohm 65dB Gain
  • High Output Moving Coil Input impedance 47kOhm 50dB Gain
  • SNR 90dB (A weighted @ 40dB input gain)
  • THD < 0.005%
  • Outputs 1 RCA and 1 Balanced
  • Inputs 2 RCA Analog Signal Outputs
  • Display LED
  • Finish Black brushed aluminum and acrylic
  • Power supply 10 pcs NCR18650 with 24V DC power adaptor
  • Dimensions (mm) 215 x 335 x 115
  • Weight 4 kg
You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.