The Pro-Ject MC Step Up Box DS3 B transformer allows for connecting MC cartridges to MM phono preamplifiers. The model features the option to choose between balanced or unbalanced connections. Pro-Ject MC Step Up Box DS3 B is made using Lundahl components in a "dual mono" configuration. The model stands out with excellent technical parameters and precise sound.
Features:
- Input impedance switch: 5-40 ohms / 20-150 ohms;
- Transformation ratio switch: 1:16 or 1:32;
- Gain factor: 24dB / 30dB;
- Transformer output load: 47 kOhm / 100 pF.
Connecting MC Cartridges
The output signal level from an MC cartridge is approximately 10 times lower than the signal from an MM cartridge. It requires a circuit with a higher gain factor, which can introduce its own noise and distortions. The optimal solution for connecting MC cartridges is to use a step-up transformer. It will increase the signal amplitude to a level sufficient for input to an MM phono preamplifier.
Step-Up Transformer
Thanks to the absence of active amplification elements, the signal from the Pro-Ject MC Step Up Box DS3 B has low distortion and noise levels. The sound when using a step-up transformer will be more vibrant, dynamic, and natural.
Balanced Connection
Pro-Ject MC Step Up Box DS3 B features both unbalanced and balanced inputs and outputs. Choose the type of connection based on the components of your Hi-Fi system. Input and output selection can be done using the button on the front panel.
Lundahl Transformers
The Pro-Ject MC Step Up Box DS3 B model is equipped with high-quality Lundahl LL 1678 transformers (Sweden). They are highly reliable and offer superior sound quality. The transformers are placed in mu-metal shields to protect against interference.
Adjusting Gain and Impedance
In the Pro-Ject MC Step Up Box DS3 B model, the transformation ratio (amplitude signal increase) can be changed for compatibility with different MC cartridges. The adjustment is done using the button on the front panel. Depending on the selected mode, the signal gain will be either 24dB or 30dB. The input impedance can be adjusted using the button on the rear panel of the Pro-Ject MC Step Up Box DS3 B.
Reliable Enclosure
Pro-Ject MC Step Up Box DS3 B is housed in a metal enclosure to protect against interference and vibrations. The exterior finish of the model is designed to ensure durability and an attractive appearance.
Made in Europe
The MC Step Up Box DS3 B transformer for MC cartridges is produced at the company's own factory in Europe.
Package includes:
- Step-up transformer
- Manual
















































