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MM and MC phono preamplifier
ECC83 tube phono stage
Adjustable gain
Adjustable charge and capacity
Manufacturer : PRO-JECT
379,00 €
In stock
Shipped within 3 to 5 working days Available within 1 or 2 weeks
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After the unquestionable success of the small Pro-Ject Tube Box S phono preamplifier, the Austrian manufacturer offers a newer version of its best seller.
At first sight, the Pro-Ject Tube Box S2 phono preamplifier is not very different from its predecessor.
However, one that has an eye for detail can immediately remark that the chassis has been changed. Indeed, the previous version had a brushed aluminium front panel (black or natural) mounted on a gray steel chassis.
Instead, the Pro-Ject Tube Box S2 phono preamplifier has an anodized chassis made out of an aluminium sandwich.
Therefore, it appears as a higher end aspect, which provides a better immunity against radio waves and electromagnetic perturbations.
The front panel has a power up button, as well as a button which enables to launch the subsonic filter (20hz with 12 dB/octave).
Compared to the old Tube Box S, there are 2 switches on the front panel which make it possible to select the 6 gain values (40, 43, 50, 53, 60, 63dB).
A part of the gain is obtained by ECC83/12AX7 tubes (one per channel). These tubes are replaceable by multiple models of different manufacturers to modify the sound of the preamplifier according to the tastes of each individual.
Its adjustable gains, load resistance, and load capacitance values make it possible to combine this Pro-Ject Tube Box S2 with multiple high end MM and MC cartridges. Indeed, the Pro-Ject Tube Box S2 phono preamplifier is totally compatible with all MM cartridges and the majority of moving coil cartridges.
On the back of the Pro-Ject Tube Box S2 phono preamplifier there are RCA inputs and outputs as well as a knob for the connexion of the mass.
The internal architecture is totally double mono, which makes it possible to obtain a more precise stereo reproduction and soundstage. The RIAA correction is made around a double circuit. One part is active and the other is totally passive.
The Pro-Ject Tube Box S2 phono stage is the first to be totally designed out of discrete components. Pro-Ject has not used any integrated circuits (Ops amplifiers).
“Fet” transistors dedicated to the input circuit have been chosen for their weak noise and absence of distortion.
All the condensers are out of Styroflex technology.
No chemical capacitance was used on the audio signal path.
The Pro-Ject Tube Box S2 phono preamplifier is powered by an external power supply which supplies a direct current of 18 V. There is no need of a rectifying circuit or filter circuit. However, several voltages are internally treated which are regulated for the different parts of the circuit.
The opening bars of this Pro-Ject Tube Box S2 phono preamplifier are relatively significant.
Like its predecessor, there is a good timber quality and definition. But the global transparency as well as the precision of the soundstage have been largely improved.
The Pro-Ject Tube Box S2 phono preamplifier demonstrates authority with a lot of nuances and finesse when it is necessary.
There is no frustration nor any aggressiveness without any limits in the high spectrum.
In terms of timber and harmony, the tubes perfectly play their parts without adding any coloration as this is often the case on this type of device.
The installation and setting of this phono stage is simple as long as you know the characteristics of the phono cartridge.
We highly recommend to wait at least 10 minutes after the power up of the device to appreciate` its qualities.
Careful not to increase the gain too much to try to obtain the same level as a digital source as the results will be an aggressive sound and maybe even a few distortions.
The Pro-Ject Tube Box S2 phono preamplifier is currently the best seller. It is a quality product and provides the same results as devices that are worth twice as much.
This product is our top pick!
FranckCompatibility: MM and MC
Tubes: 2 x ECC83
Load capacitance: 50, 150, 270, 370, 490, 590 pF
Load resistance: 10 ohms, 100 ohms, 1 kohm, 47 kohms
Gains: MM MC: 40, 43, 50, 53, 60, 63 dB
Signal-to-noise ratio: 80 dB
Distortion: < 0,02 % (at 40 dB), < 0,05 % (63 dB)
RIAA equalization : 20Hz - 20kHz / max. 0,4 dB
Subsonic filter: at 20 Hz with 12 dB/octave
Input: 1 per RCA set
Output: 1 per RCA set
Power supply: separated 18v DC / 500mA
Consumption: 470 mA, < 1w in standby
Dimensions: 105 x 73 x 131
Weight: 410g without power supply
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Customer reviews
Top !
J’ai une REGA RP6 + Exact et un Marantz PM8805 connecté à des Focal Aria 936. Je cherchais un mieux, un peu plus … le support de maplatine me propose un cet preampli phono pour « éviter » celui du Marantz jugé pas performant au regard de l’ensemble ! J’ai quelques doutes mais je fais confiance une fois de plus … le résultat est sans équivoque : plus de dynamique, de netteté et de définition ! Top ! Merci à l’équipe !
Grosse différence
Heureux propriétaire d'une Project Debut Carbon avec Stylus Ortofon 2M Blue, Ampli intégré Musical fideilty M2SI et enceintes Sonus Faber, Franck m'a conseillé le Project Tube Box S2 pour remplacer mon Project MM-DC. Dès la première écoute, la différence est très nette : tout est plus clair, plus précis, plus profond, je redécouvre la guitare de BB King et la contrebasse de Mingus ! ça donne vraiment envie de réécouter tous ses vinyles . Etonnant rapport qualité prix !
Merci à l'équipe maPlatine et à Franck, toujours au top.
Bluffant
J'étais un peu sceptique à la commande en me disant qu'un si petit boitier ne pouvait apporter autant au son de mon système vinyle. Je dois admettre que je suis bluffé. L'écoute est vraiment largement meilleure. Couplée avec une cellule Ortofon 2M Bronze c'est un régal.
Belle découverte
Ce petit pré ampli à lampe pro ject est vraiment une réussite, avec son prix maitrisé le résultat est stupéfiant. Je l'ai associé avec mon cambridge AX R85, une pro ject carbon et cellule ortofon blue, cabasse clipper 2. Je trouve la scène musicale encore plus précise et détaillée.
Je ne regrette pas mon investissement et merci pour les conseils de ma platine avant l'achat.