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Innovative Miniature Sized Phono Preamplifier With Tube Output And High End Sound!
Tube Box S2 is our very first product to feature a fully discreet circuit design without using any operational amplifiers (OpAmps). It also is the first product to come with replaceable tubes for tube rolling and sound-shaping. This gives the customer many options to pick from and alter the sound signature to his preference. Tube Box S2 will give a full and relaxed laid back sound with lush mids, just like you would expect it from a much bigger high end tube phono pre-amplifier. It offers support for both MM and MC cartridges and comes with many gain settings to be switched on the front panel. Five variable input impedance settings are available to adjust to any MM cartridge, the 47k ohm input impedance setting is fixed and suited for high output MC cartridges. The aluminium/metal casing is adapted to our DS2 line in looks and protects against vibrations and electromagnetic interferences for superior sound.
A true high end solution in a much smaller package!
Features:
- Suitable for MM and MC cartridges
- Precise RIAA equalisation in two parts, passive/active
- Fully discreet circuit design without OpAmps
- 2x ECC83 tubes (replaceable)
- Front-sided Subsonic filter button
- Front-sided Gain control
- Ultra low noise circuitry with FET input stage
- Dual mono circuitry for optimized channel separation
- Polystyrene capacitors used where possible
- Gold-plated RCA in- and outputs
- External power adaptor and multiple internal power supplies
- Well-filtrated high-voltage anode power supply
- Sandwich alu/metal casing protects from vibrations and electromagnetic interference
Specifications:
- Tubes: 2 x ECC83 (12AX 7A)
- Input impedance: 10 ohms, 100 ohms, 1 kohm, 2 kohms
- Input capacitance/impedance: 47pF, 147pF, 267pF, 367 pF, 487 pF and 587 pF* / 47 kohms, Together with other input impedance settings without any influence!
- Input gain: 40 dB, 43 dB / 50 dB, 60 dB und 63 dB
- Noise floor: 80 dB (A weighted) at 40 dB input gain, 75dB (A weighted) at 50 dB and 63 dB input gain
- THD: <0.02% at 40 dB input gain <0.05% at 50 dB and 63 dB input gain
- RIAA-equalisation curve accuracy: Abweichung max. 0.4 dB/20 Hz - 20 kHz
- Subsonic filter: at 20 Hz with 18 dB/octave
- Input: je 1 Paar RCA/Cinch-Buchsen
- Line-level output: 1 pair RCA/phono sockets
- Outboard power supply: 18 V / 1.000 mA DC, suitable for your country's mains supply
- Power consumption: 470 mA DC, <1W in standby
- Dimensions W x H x D with sockets: 103 x 73 x 131 mm
- Weight: 410 g without power supply
Product Details
- Pro-Ject PJ71658588
-
Brand New : Factory Sealed
- EAN : 9120071658588
- EFLC : 9765
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Warranty
One Year Warranty
- Parts and Labour Warranty
- Canada-wide Coverage
- Pro-Ject Authorized
Returns
Easy Returns
- 14-day return window on eligible items
- Full refund issued in accordance with our return policy
About Pro-Ject
Pro-Ject focuses on sound-first products built for music and home theater listening, where clarity, balance, and real-world usability matter. We've been carrying Pro-Ject since 2016.
Explore our current Pro-Ject selection and best sellers. We offer both new and open-box items, and everything is clearly marked. Popular categories include Turntables, Product Hardware & Accessories, Phono Preamps.
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