The Phono Box S is extremely flexible. Each cartridge performs best in the optimal electrical environment. The phono preamplifier can be finely adjusted to the requirements of the cartridge in terms of termination capacitance, termination resistance, and gain. Unusually for this price range, the device offers a variety of adjustment options for the termination capacitance of MM, Moving Iron, and High-Output MC cartridges, as well as the termination resistance for Low-Output MC cartridges. The gain can be set in four stages and is not tied to a specific operating mode. All settings can be used for both MM and MC modes.
The Pro-Ject Phono Box S2 Ultra is a phono preamplifier based on the Pro-Ject Phono Box S2, featuring a discrete circuit design in the signal path. Carefully selected components, such as polystyrene capacitors, ensure the finest sound quality.
For MM, MI, and MC cartridges
- Gain adjustable in four stages
- Resistance and capacitance adjustable
- Switchable subsonic filter
- Optional battery power supply
- External power supply reduces interference
Technical details:
- No ICs in the signal path
- Termination resistance: continuously adjustable 10 Ohm, 100 Ohm, and 1 kOhm (Low-Output MC cartridges)
- Termination capacitances/resistance: 100 pF, 200 pF, 320 pF, and 420 pF/47 kOhm (High-Output MC, Moving Iron, and MM cartridges)
- Gain: 40 dB, 43 dB, 60 dB, and 63 dB
- Switchable subsonic filter
- External power supply (included)
Upgrade option:
- Pro-Ject Accu Box S2 battery power supply for improved sound quality.
Housing data:
- Dimensions W x H x D (D with sockets): 103 x 37 x 104 (115) mm
- Weight: 340 g without power supply.