null Skip to main content

Ask an Expert

1-800-942-0220 Weekdays: 9am - 7pm EST
Audiophile Learning Center
Clearance Price Drop! Limited Quantities! Shop Now
Click on image to enlarge.

Share
SKU: PRTBS2-BLK
WARNING: for more information go to http://www.P65Warnings.ca.gov

Pro-Ject Tube Box S2 Phono Preamplifier - Black

Pro-Ject's Tube Box S2 phono preamplifier with a tube output stage offers unrivalled performance and unique flexibility at an incredibly affordable price.

Color
    $398.37 - $499.00
    $499.00

    You Save $100.63 (20%)
    Temporarily Out of Stock. Usually Ships in 5-7 Business Days.
    Share
    SKU: PRTBS2-BLK
    WARNING: for more information go to http://www.P65Warnings.ca.gov
    Have a Question? Ask Our Experts!

    High Quality Products Curated Offerings from top brands

    Green Practices Commitment to environmental Sustainability

    60 Days Return Satisfaction Guarantee

    Unrivalled Performance and Unique Flexibility

    Pro-Ject's Tube Box S2 phono preamplifier with a tube output stage offers unrivalled performance and unique flexibility at an incredibly affordable price. It's one of the most economical ways to enjoy the lush sound of vacuum tube phono gear that we know of, and the ultra-compact size means that the Tube Box S can fit almost anywhere.

    The sonic quality of Tube Box S2 is extremely impressive, offering a big improvement over Pro-Ject's great sounding Phono Box S. It makes a big improvement over the built-in phono stage on many amps and receivers and offers a perfect upgrade for most analog hi-fi systems.

    "Full Bodied, Natural and Warm"

    "The Pro-Ject Tube Box is a clear winner with the Koetsu Black" phono cartridge, reports Phil Gold in his review of the original Tube Box S for EnjoyTheMusic.com. "The sound is full bodied, natural and warm, with a surprising degree of detail… The sound is spacious and there is good width and depth to the image."

    Fully Discreet Circuit Design Without Op-Amps

    Tube Box S2 is Pro-Ject's 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 you many options to pick from and alter the sound signature to your preference.

    A Wide Range of Setting Parameters

    Tube Box S2 provides a full and relaxed laid back sound with lush mids, just like you would expect it from a much bigger high end tube phono preamplifier. 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 ohms input impedance setting is fixed and suited for high output MC cartridges.

    The aluminum/metal casing is adapted to Pro-Ject's DS2 line in looks and protects against vibrations and electromagnetic interferences for superior sound. This is all-in-all a true high end solution in a small package.

    Product Features

    • Suitable for MM and MC cartridges
    • Precise RIAA equalization in two parts, passive/active
    • Fully discreet circuit design without OpAmps
    • 2x ECC83 tubes (replaceable)
    • Front-panel Subsonic filter button
    • Front-panel 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
    • xternal power adaptor and multiple internal power supplies
    • Well-filtrated high-voltage anode power supply
    • Sandwich alu/metal casing protects from vibrations and electromagnetic interference
    • Finishes: silver or black

    Product Specs

    • Input impedance: 10 / 100 / 470 / 1000 / 2000 Ohms / fixed 47 k Ohms (MM)
    • Input capacitance: 50 / 150 / 270 / 370 / 490 / 590 pF
    • Gain: 40 / 43 / 50 / 60 / 63 dB
    • Subsonic switch: -12dB @ 20Hz
    • Signal-to-noise ratio: 77 dBA
    • THD: <0.0025%
    • RIAA deviance: Max. 0.4 dB / 20 Hz - 20 kHz
    • Dimensions: 4" wide, 3" high, 4" deep (4.5" deep with connectors)
    • Weight: 28.5 oz

    Product Warranty

    Parts & Labor 2 Years Pro-Ject Audio Systems Warranty Information

    Audio Advisor occasionally has fantastic deals on clearance items that are in excellent condition and we happen to have just one or two of.

    Demo: Photo samples, gear we auditioned, items returned for wrong color/wrong size, etc.


    Open Box: Contents briefly examined or inspected for promotional or internal purposes


    Factory Refreshed: Original-condition items repackaged by the manufacturer


    Cosmetically Blemished: A few dings or scratches, but functionally in original condition


    Used: May show some signs of use


    All clearance products are carefully inspected by our technicians before we offer the item for sale. All clearance products except Used items come with the original manufacturer warranty and are guaranteed to work and sound like new.

    RETURN POLICY & PROCESS

    NOTE:
    You may only return a product purchased within 60-days of the receipt date.
    The product must be in like-new condition and shipped in the original packaging (So SAVE THOSE BOXES!!!)


    1. Call 1-800-942-0220 to request an RMA number.
    2. Print the RMA number on the return shipping label.
    3. Please make sure the return shipping name and address are written in a note on the inside.
    4. Ship package to…

    Audio Advisor Returns
    5500 Executive Parkway SE
    Grand Rapids, MI 49512
    (PRINT YOUR RMA NUMBER HERE)

    NOTE: If a coupon was used in the ordering process, then the final value (recorded during payment) will be the price refunded.

    Returned products are inspected by our warehouse and refunds are issued within 24 hours of inspection. Please note: it may take 7-10 business days for your bank to show the refunded amount. If you do not see it then, please reach out to our customer service team at 1-800-942-0220.

    Audio Advisor will ship products anywhere in the United States, including Alaska, Hawaii, and U.S. Territories.

    DISCOVER EXPERT TIPS

    Audio Advisor Learning Center - Level Up Your Audio Education

    Customer Reviews

    Pro-Ject Tube Box S2 Phono Preamplifier - Black

    $398.37 - $499.00
    Select a Condition *
    Back to Top