Pro-Ject Phono Box S2 Ultra Discrete MM and MC Phono Preamplifier
The Pro-Ject Phono Box S2 Ultra is a unique phono preamplifier that stands in a class of its own. To celebrate its luxury design and incredible performance, Pro-Ject has created a circuit that is fully discrete, meaning it avoids the use of operational amplifiers (Op-Amps) entirely. This results in a sound that is exceptionally harmonious, fluid, and lifelike.
By utilizing individual electronic components, the Phono Box S2 Ultra delivers an audiophile-grade experience previously unheard of at this price point. It features high-end polystyrene capacitors and a precise RIAA equalization curve to ensure every nuance of your vinyl collection is captured. The solid metal housing protects against interference, ensuring that the only thing you hear is the pure, undistorted beauty of your music.
This item is available for local pickup. (Details) Authorized dealer. Sold with full warranty.


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Features:
- Fully Discrete Circuitry: Built without operational amplifiers to provide a more natural, warm, and detailed sound profile.
- Audiophile Polystyrene Capacitors: Uses high-quality components that contribute significantly to the unit's top-tier sonic transparency.
- MM and MC Compatibility: Offers flexible settings to perfectly match almost any Moving Magnet or Moving Coil cartridge.
- Precise RIAA Equalization: Ensures a highly accurate frequency response for faithful reproduction of the original recording.
- Switchable Subsonic Filter: Effectively removes ultra-low frequency noise below 20Hz to protect your speakers and amplifier.
- Aluminum/Metal Housing: The robust "sandwich" casing protects internal electronics from electromagnetic interference and vibration.
- Adjustable Gain and Impedance: Easy-to-use switches on the bottom allow for fine-tuning the preamplifier to your specific turntable setup.
Technical Specifications
- Input Impedance: 10 / 100 / 1k / 47k Ohms
- Input Capacitance: 100 / 220 pF
- Gain Settings: 40 / 43 / 50 / 53 / 60 / 63 dB
- Subsonic Filter: -18dB @ 20Hz
- Signal to Noise Ratio: 89dB (MM) / 79dB (MC)
- THD: 0.00052%
- RIAA Accuracy: < 0.4dB / 20Hz - 20kHz
- Input/Output: 1 pair RCA / 1 pair RCA
- Dimensions (W x H x D): 103 x 37 x 119 mm
- Weight: 570 g (without power supply)
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