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This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. Compatible with both MM and MC cartridges. It offers connection for two turntables plus two selectable line outputs and a con

Pro-ject Tube Box DS2 Silver Preamplifier

Other features include input capacitance for MM cartridges and switchable subsonic, that prevents your amplifier and speakers of ultra low rumble below 20Hz. All components including tube output and polypropylene capacitors are audiophile-grade and guarantee a breathtaking sound experience. A perfect upgrade for ambitious vinyl lovers!

Selection between 2 phono inputs & 2 line outputs

Dual mono circuitry for optimized channel separation

Selectable input impedance (for MC: fix or variable)

Sandwich alu/metal casing protects from vibrations and electromagnetic interference

Input Impedance: Variable 10-1000 Ohms, fix 47 k

Ohms Capacitance: 100 / 220 / 320 pFGain MM / MC 40 / 45 / 50 / 60 / 65 dB

Output Voltage: Typically 500 mV/1kHz at 5mV/1kHz (at 40dB)

RIAA Curve Accuracy: +/- .2dB/20Hz - 20kHz

DC Power Consumption: max 490mA DC / < .5 watt standby

Dimensions WxHxD:8.11 x 3.58 x 8.94 in (Black/Silver)

Weight (without power supply): 3.64 lb (Black/Silver)

This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. Compatible with both MM and MC cartridges. It offers connection for two turntables plus two selectable line outputs and a continuously variable selection of input impedance for low output MC cartridges while playing a record! 

Analog Audio(RCA) Output:

Signal to Noise Ratio:

Color:

Pro-ject Tube Box DS2 Preamplifier-Black with tube output and high-end sound

Pro-ject Tube Box DS2 Black Preamplifier

Premium phono preamplifier with tube output and highend sound!

This precision tube phono preamplifier benefits from outstanding circuit technology from Dr. Sykora and uses ultimate components. Compatible with both MM and MC cartridges. It offers connection for two turntables plus two selectable line outputs and a continuously variable selection of input impedance for low output MC cartridges while playing a record! Other features include input capacitance for MM cartridges and switchable subsonic, that prevents your amplifier and speakers of ultra low rumble below 20Hz. All components including tube output and polypropylene capacitors are audiophile-grade and guarantee a breathtaking sound experience. A perfect upgrade for ambitious vinyl lovers!

Pro-ject Tube Box DS2 Preamplifier-Silver with tube output and high-end sound

Pre Box S2 Analogue features three line level inputs, two pairs of RCA sockets as well as one separate 3.5 millimeter input. Three individual analogue signals can be passed on to a power amplifier, such as Amp Box S2 or other Pro-Ject Box Design power amp

Pro-Ject Black Analog Preamplifier

The 3.5mm fixed line level output can pass the signal on to an additional amplifier, such as a Head Box S2. A 12V trigger output can remotely turn on other products with trigger input for improved comfort and convenience. The incredibly low harmonic distortion levels guarantee a listening experience which has never been available in this pricerange! The housing is made of an aluminium/metal sandwich construction for highest aesthetics and to protect against unwanted electromagnetic interference and vibratios. Pre Box S2 Analogue comes in silver or black and can be powered by any 5V powerbank or the supplied power supply.

Advanced circuitry with premium components

Neutral sound with superior low noise floor

Low output impedance for low loss with long cables

Remote control for on/off, input select, volume

Trigger outputs for Amp Box S2 and Switch Box

Alu/Metal casing protects against vibration and interference

*Black Only. Silver Color for visual purposes only.

Pre Box S2 Analogue features three line level inputs, two pairs of RCA sockets as well as one separate 3.5 millimeter input. Three individual analogue signals can be passed on to a power amplifier, such as Amp Box S2 or other Pro-Ject Box Design power amplifiers, via the RCA pre-output!

Frequency Response

Noise Floor

Gain

Pre-Outputs

Line-Level Inputs

Input Impedance

Fix Output

Outboard Power Supply

Power Consumption

Replacement Battery Remote Control

Dimensions W x H x D

Weight

This ultra low noise and distortion preamplifier is made for the audio conniosseur and offers not only breathtaking performance but is capable to adapt to virtually any phono cartridge through variable impedance control. Impedance adjustment can be done w

Pro-Ject Phono Box Silver Preamplifier

Due to use of best parts, like SSM2019 from Analog Devices as input stages and Linear Technology LT1010 as high current buffer stage, Phono Box RS delivers ultra low levels of distortion and noise. Its very low output impedance makes it insensitive to selection of interconnect cables and lengths.

Fully passive RIAA and DECCA equalization is selectable. Phono Box RS offers fully balanced circuitry and both XLR and RCA inputs and outputs. All in all vinyl playback will never have sounded as clear, detailed and smooth, than with this superlative phono stage!

Balanced XLR & unbalanced RCA In & Outputs

Unique continuously variable input impedance loading, matches every cartridge (adjustment even while playing)

Metal casing protects against vibration and interference

*Back Is For Visual Purposes Only, Black is Sold Separately.

This ultra low noise and distortion preamplifier is made for the audio conniosseur and offers not only breathtaking performance but is capable to adapt to virtually any phono cartridge through variable impedance control. Impedance adjustment can be done while playback!

Load Capacity Switchable

Output Impedance

Gain, MM/MC

Signal To Noise Ratio

RIAA Accuracy

Subsonic

Inputs

Outputs

Power Supply

Dimensions W x H x D (with sockets)

Pro-Ject Phono Box Black Preamplifier

Pro-Ject Black High End Preamplifier

The Pre Box RS2 Digital is the bigger brother of our award winning and ground breaking Pre Box S2 Digital. It uses the same excellent sounding DAC chips as the S2 version, proving once again that the Pre Box S2 Digital was already at the very top of high-end DACs and absolutely beyond its competition. Based on the same core-design principles, the feature set is extended and driven to new heights. The result is a fantastic sounding and very versatile box. The perfect partner for the cream of the crop of high-end amplifiers and speakers alike!

Pro-Ject Silver High End Preamplifier

The Pre Box RS2 Digital is the bigger brother of our award winning and ground breaking Pre Box S2 Digital. It uses the same excellent sounding DAC chips as the S2 version, proving once again that the Pre Box S2 Digital was already at the very top of high-

The Pre Box RS2 Digital is a DAC and preamplifier that uses a dual-mono configuration of the highest-class D/A converters from ESS Sabre. ESS9038Q2M chips provide the highest sound quality in price-affordable, high-end circuits. Unlike most of DAC´s in this price range, the Pre Box RS2 Digital includes dual DACs and separate signal paths for the left and right channels. Also thanks to these converters, the Pro Box RS2 Digital supports up to 32-bit / 768 kHz files in PCM and DSD formats (up to DSD512) via USB, covering any digital file you can buy or stream.

The analog output is a buffer that is both solid state and high-quality tube. Thus, the customer can choose which of the option is preferred. The Pre Box has eight digital filters. One of them is the proprietary optimal transient digital filter from the MQA creators. With these filters, the listener can customize the sound to suit their own preferences. Pre Box RS2 Digital comes with full HW and SW support for MQA technology (Master Quality Authenticated).

In the Pre Box, the USB input signal is processed by a powerful multi-core XMOS microcontroller with advanced Multi-Core RISC architecture. The CPLD MAX II (Complex Programmable Logic Device) Altera is used for re-clocking, which together with the XMOS microcontroller brings high-quality processing of both classical and MQA technology. For the ideal use of this technology, it is best to connect the Pre Box to our Stream Box S2 Ultra in conjunction with the TIDAL service. You can also enjoy MQA quality by linking it with our new revolutionary CD transport, the CD Box RS2 T. The CD Box RS2 T can be connected to the Pre Box by reliable I²S differential bus via the HDMI connector where the Pre Box RS2 Digital also provides the master clock (16.9344 MHz).

The headphone amplifier is the ultimate design. No compromise. No coupling capacitors. Not even on the output. All of the the amplifier is DC coupled. A very fast DC servo assures no DC voltage on the output. Its output power is suitable for all kind of headphones.

A premium full aluminum remote control is included in the packaging and the Pre Box RS2 Digital is available in a high-quality silver or black aluminum case. The big display screen on the front shows all relevant information in an easy to read, clean and structured way. Navigating the menu is very responsive and fast, allowing you to set up the unit to your preferences in seconds!

High Quality optionally selectable upsampling of PCM and/or MQA content with propriatory filtering

High quality full Aluminium remote control included

Advanced re-clocking powered by new XMOS chip with Mulit-Core RISC architecture

9 digital inputs: i²S HDMI, AES/EBU, Toslink, S/PDIF coax, Bluetooth v4.0

Analogue: Pre-out XLR/RCA/headphone, RCA input

Output stage switchable between 6922 tube & solid state

New high-quality display with responsive and fast UI design

Pro-Ject Silver Phono Preamplifier

The Phono Box RS2 is the ultimate phono preamplifier of the highest class. It is fully balanced from the input to the output. Electronics are fully discrete, no op-amps are in use and it uses split passive RIAA and DECCA equalization.

Phono Box DS2 is a highly adjustable phono pre-amplifier suitable for all common MM and MC cartridges. With the ability to switch easily between input impedance and capacitance, as well as gain on front it becomes one of the most user friendly phono stage

Pro-Ject Black Phono Preamplifier

Premium class phono preamplifier with MM & MC capability

Phono Box DS2 is a highly adjustable phono pre-amplifier suitable for all common MM and MC cartridges. With the ability to switch easily between input impedance and capacitance, as well as gain on front it becomes one of the most user friendly phono stages at this price point. It features one pair of RCA inputs for your turntable and one pair of RCA outputs which will be connected to your pre-amplifier or integrated amplifier. The casing is made of a durable aluminum metal sandwich construction, which not only will effectively protect it against electromagnetic interferences and vibrations, but will also please the eye with its simply and elegant esthetics. Phono Box DS2 features a very linear circuit design to deliver the best possible sound from a minimalistic PCB. With its high value sonics and low cost price it becomes an audiophile bargain!

Magnetic side panels in eucalyptus, rosenut and walnut available separately

Phono Box DS2 is a highly adjustable phono pre-amplifier suitable for all common MM and MC cartridges. With the ability to switch easily between input impedance and capacitance, as well as gain on front it becomes one of the most user friendly phono stages at this price point. 

Phono Box ultra 500 is like no other phono preamplifier in its segment. The „500“ in the name as well as the general availability, worldwide limited to 500 pieces, celebrate the 500,000th Phono Box that Pro-Ject shipped in early 2018.

Pro-Ject Polished Chrome Discrete MM/MC Phono Preamplifier

Phono Box ultra 500 – Luxury and audiophilia combined!

Phono Box ultra 500 is like no other phono preamplifier in its segment. The „500“ in the name as well as the general availability, worldwide limited to 500 pieces, celebrate the 500,000th Phono Box that Pro-Ject shipped in early 2018. We took this milestone as an occasion to create a one-of-a-kind phono preamplifier:

The polished chrome surface outshines every competitor in this price segment and offers undeniable aesthetics. Underneath this surface we have used a copper body, which is known to have high qualities in protecting against high frequency interferences. The internal design has been reworked. We are now offering a fully discrete, OpAmp less, design, which enabled us to realize an incredibly harmonious sound.

On top of leaving out operational amplifiers we decided to use polystyrene capacitors, which significantly contribute to the high end sound Phono Box ultra 500 offers.

These capacitors are known amongst audiophiles as the holy grail for phono preamplifiers.

Switchable Subsonic filter –18dB @ 20Hz

A discrete circuit is composed of electronic components which are disparate, individual devices, also called discrete components. These can be “passive” components, like resistors, capacitors and inductors, as well as “active” components, which in our case are transistors. The opposite to this would be an integrated circuit, which uses operational amplifiers (Op-Amps) in the signal chain. Countless hours of listening tests and years of experience have shown us that even the very best Op-Amps do not tend to be so neutral, natural, dynamic or vivid. Standard phono pre-amplifiers with integrated circuits have a few tens or hundreds of components, but discrete designs will employ hundreds or thousands of components by comparison. That makes for an extended and more costly design process, but results in the best sound for your money.

The Phono Box RS2 employs a true fully balanced design principle. Balanced transmissions consist of a hot and a cold (also called + and -) signal. Both the + and – signal chains effectively carry the same musical information. A true balanced amplifier can now extract the final musical information out the +/- signals and subtract, remove, all noise that could potentially be added along the transmission. In a true, fully balanced amplifier, like the Phono Box RS2, the + and – sections of both the left and right channel are treated individually, which doubles the amplifier sections by 2 as a result.

The Phono Box RS2 uses split passive equalization for both of its RIAA and DECA curves. This is more costly to design and implement but ensures the most accurate representation of the ideal EQ curve. Split passive equalization allows for better impedance matching and lower deviation from the ideal RIAA or DECA curve.

No other phono-preamp in the world has such fine options of setting the gain like the Phono Box RS2. Very large ranges from 40dB (voltage amplification by 100x) up to 70dB (voltage amplification by 3690x) are possible.

Load impedance can be set continuously via potentiometer, a system invented by Pro-Ject Audio Systems. It allows you to seamlessly adjust the impedance during playback and immediately assess the impact of different loading options.

Cartridges, by nature, suffer from small imbalances between the left and right channels. To correct this the Phono Box RS2 introduces a new feature that is absolutely rare in this price category. A potentiometer allows you to adjust the exact center of the sound stage in ranges of 2dB to the left or right.

The Phono Box RS2 has a steel chassis which is covered by screwed aluminium panels. This construction brings very good rigidity and splendid isolation against interferences.

Power Box RS2 Phono – linear power supply upgrade

An outboard power supply with linear construction is even better, because it can offer much cleaner power. When you want to manufacture such clean and really high-end power supplies, you have to use a transformer with a very low core saturation and preferably with shielding between primary and secondary windings. Obviously, such a transformer becomes larger than one would expect. Also, much more expensive. That is why such a power supply requires a cabinet the size of the Phono Box RS2 itself. Our Power Box RS uni 1- & 4-way will be another step up for your Phono Box RS2 performance.

Fully discrete hardware design - NO Op-amps!

Unique continuously variable input impedance loading and channel balance control to match every cartridge to 100% (adjustment even while playing)

Preamplifiers & Processors

Pro-Ject Black Analog Preamplifier

Sale $249.00

Pro-Ject Black Phono Preamplifier

$499.00

Pro-Ject Black High End Preamplifier

Pro-Ject Phono Box Black Preamplifier

Pro-Ject Phono Box Silver Preamplifier

Pro-Ject Black Phono Preamplifier

$1,999.00

Pro-Ject Polished Chrome Discrete MM/MC Phono Preamplifier

$399.00

Pro-ject Tube Box DS2 Black Preamplifier

Pro-ject Tube Box DS2 Silver Preamplifier

Pro-ject Tube Box DS2 Silver Preamplifier

$1,199.90

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