---
product_id: 144366163
title: "Pro-Ject Phono Box S2 Ultra, Fully discrete MM/MC phono preamplifier (Black)"
brand: "pro-ject"
price: "VT133767"
currency: VUV
in_stock: true
reviews_count: 13
category: "Pro Ject"
url: https://www.desertcart.vu/products/144366163-pro-ject-phono-box-s2-ultra-fully-discrete-mm-mc
store_origin: VU
region: Vanuatu
---

# Fully discrete circuit design Adjustable impedance, capacitance & gain Solid metal casing for interference shielding Pro-Ject Phono Box S2 Ultra, Fully discrete MM/MC phono preamplifier (Black)

**Brand:** pro-ject
**Price:** VT133767
**Availability:** ✅ In Stock

## Summary

> 🎵 Elevate your vinyl ritual with precision-engineered purity.

## Quick Answers

- **What is this?** Pro-Ject Phono Box S2 Ultra, Fully discrete MM/MC phono preamplifier (Black) by pro-ject
- **How much does it cost?** VT133767 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/144366163-pro-ject-phono-box-s2-ultra-fully-discrete-mm-mc)

## Best For

- pro-ject enthusiasts

## Why This Product

- Trusted pro-ject brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Classic Meets Modern:** Includes a subsonic filter to eliminate low-frequency rumble and speaker flutter, a rare feature in today’s phono preamps.
- • **Pure Audiophile Signal:** Fully discrete layout with no op-amps ensures ultra-low distortion and pristine sound clarity.
- • **Tailored Vinyl Experience:** Customizable impedance, capacitance, and gain settings perfectly match any MM or MC cartridge for optimal playback.
- • **Interference-Free Listening:** Robust metal casing shields against electromagnetic noise, guaranteeing a clean, hum-free audio environment.
- • **Precision RIAA Equalization:** Split RIAA curve delivers unmatched accuracy, preserving the authentic vinyl sound signature.

## Overview

The Pro-Ject Phono Box S2 Ultra is a compact, fully discrete MM/MC phono preamplifier designed for audiophiles seeking the purest vinyl playback. Featuring adjustable impedance, capacitance, and gain, it adapts seamlessly to any cartridge, while its split RIAA equalization ensures precise sound reproduction. Encased in a solid metal housing to prevent interference, it also includes a subsonic filter to tackle low-frequency noise, making it a top-tier choice for discerning vinyl enthusiasts.

## Description

Shop Pro-Ject Phono Box S2 Ultra, Fully discrete MM/MC phono preamplifier (Black). Free delivery and returns on eligible orders.

Review: Excellent Phono Pre Amp - I chose this model because of a few reasons. Firstly it is well constructed and looking at the specs it has incredibly low distortion levels. It’s circuits are fully discrete high grade components and it’s a dual mono construction. These features can only be a good thing and are sure signs of good design and construction. Secondly it’s fully compatible with MM or MC so my cartridge choices are not limited in the future. This is also helped by the fact that the impedance, capacitance and gain can be adjusted by means of a series of dip switches on the underside of the unit. This allows the pre amp to be electrically matched to your cartridge choice. This will result in optimal results from your vinyl playback. Lastly it’s a made in Europe component as all of Pro-ject’s equipment is. In use this a very quite phono stage with regards to unwanted noise. I’ve set the impedance, capacitance and gain to match my cartridge and the results are very clear sounding records with no audible hum, even at reasonably high volume levels on my amplifier noise and hum is never heard beneath the music. The incredibly low distortion figures and accurate RIAA response mean that this component will not impart it’s own characteristics to the sound. What you hear is your cartridges interpretation of the record. This is a very good pre amp. Another nice feature to note is the inclusion of a subsonic filter to get rid of speaker cone flutter with warped records, or just to get rid of really low rumble. It’s not something I’ve felt the need to use yet, but it’s nice to know it is there should it be needed - as most modern vinyl playback equipment seems to dispense with this. I think it’s nice to have it included, once upon a time it was a standard feature on equipment so nice to see it here. The only thing that would have been better would have been to put this switch on the front rather then the rear. It’s not a massive issue as it’s easy reach the rear with your index finger (oo - er), but you can’t see at a glance if subsonic is activated or not. The unit is very compact and easy to find space for it’s footprint. It even lights up blue the same as my NAD integrated amplifier which is nice. All in all I’m happy with it and wouldn’t hesitate in recommending it.
Review: Compact descrete RIAA amp - Using this with my project RPM1 carbon with a 2M blue, and so far I’m very pleased with the result. Compared to my Rega a2d mini it has a bit more body and warmer sound. My speakers are Triangle Color floorstanders and TEAC ai1000 amp.

## Features

- Fully discrete layout without op-amps
- Audiophile grade polystyrene capacitors used
- Split RIAA equalisation produces greater accuracy of RIAA curve
- Variable settings for impedance, capacitance and gain to match any modern cartridge
- Solid metal casing protects from interferences

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NFXRY2C |
| Best Sellers Rank | 33,442 in Electronics & Photo ( See Top 100 in Electronics & Photo ) 337 in Hi-Fi Receivers & Separates 10,306 in Hi-Fi & Home Audio Accessories |
| Item model number | Phono Box S2 Ultra |
| Manufacturer | Pro-Ject Audio Systems |
| Product Dimensions | 1 x 1 x 1 cm; 689 g |

## Product Details

- **Brand:** Pro-Ject
- **Item dimensions L x W x H:** 10 x 10 x 10 millimetres
- **Manufacturer:** Pro-Ject Audio Systems
- **Maximum supply voltage:** 18 Volts (DC)
- **Mounting type:** Surface Mount

## Images

![Pro-Ject Phono Box S2 Ultra, Fully discrete MM/MC phono preamplifier (Black) - Image 1](https://m.media-amazon.com/images/I/71urJlTz93L.jpg)

## Available Options

This product comes in different **Color** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Phono Pre Amp
*by M***B on 8 May 2023*

I chose this model because of a few reasons. Firstly it is well constructed and looking at the specs it has incredibly low distortion levels. It’s circuits are fully discrete high grade components and it’s a dual mono construction. These features can only be a good thing and are sure signs of good design and construction. Secondly it’s fully compatible with MM or MC so my cartridge choices are not limited in the future. This is also helped by the fact that the impedance, capacitance and gain can be adjusted by means of a series of dip switches on the underside of the unit. This allows the pre amp to be electrically matched to your cartridge choice. This will result in optimal results from your vinyl playback. Lastly it’s a made in Europe component as all of Pro-ject’s equipment is. In use this a very quite phono stage with regards to unwanted noise. I’ve set the impedance, capacitance and gain to match my cartridge and the results are very clear sounding records with no audible hum, even at reasonably high volume levels on my amplifier noise and hum is never heard beneath the music. The incredibly low distortion figures and accurate RIAA response mean that this component will not impart it’s own characteristics to the sound. What you hear is your cartridges interpretation of the record. This is a very good pre amp. Another nice feature to note is the inclusion of a subsonic filter to get rid of speaker cone flutter with warped records, or just to get rid of really low rumble. It’s not something I’ve felt the need to use yet, but it’s nice to know it is there should it be needed - as most modern vinyl playback equipment seems to dispense with this. I think it’s nice to have it included, once upon a time it was a standard feature on equipment so nice to see it here. The only thing that would have been better would have been to put this switch on the front rather then the rear. It’s not a massive issue as it’s easy reach the rear with your index finger (oo - er), but you can’t see at a glance if subsonic is activated or not. The unit is very compact and easy to find space for it’s footprint. It even lights up blue the same as my NAD integrated amplifier which is nice. All in all I’m happy with it and wouldn’t hesitate in recommending it.

### ⭐⭐⭐⭐⭐ Compact descrete RIAA amp
*by J***N on 6 October 2019*

Using this with my project RPM1 carbon with a 2M blue, and so far I’m very pleased with the result. Compared to my Rega a2d mini it has a bit more body and warmer sound. My speakers are Triangle Color floorstanders and TEAC ai1000 amp.

### ⭐⭐⭐⭐⭐ Quiet and great sound
*by C***N on 4 July 2022*

I’m extremely happy with this phono amp, it’s much quieter than my Duo and sounds great.

## Frequently Bought Together

- Pro-Ject Phono Box S2 Ultra Phono Preamplifier (Black)
- Monoprice 1.5ft Premium 2 RCA Plug/2 RCA Plug M/M 22AWG Cable - Black
- Pro-Ject Debut Carbon EVO, Audiophile Turntable with Carbon Fiber tonearm, Electronic Speed Selection and pre-Mounted Sumiko Rainier Phono Cartridge (High Gloss Black)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-03-05*