Pro-Ject Tube Box DS3 B
- Free Mainland UK Shipping on orders over £100
- Official Hi-Fi Retailer since 1973
- Usually in stock and dispatched in 1-5 working days
We offer free delivery on all orders over £100 to mainland UK. Orders under £100 are subject to a £6.50 shipping charge.
Delivery is available across mainland UK. If you are located outside mainland UK and would like a shipping quote, please get in touch before placing your order.
We aim to dispatch in-stock items as soon as possible provided that we physically have the stock - but please note that sometimes we have to order from our supplier for certain products, in which case delivery should take place within 1-5 working days of the order being placed.
Tracking details or estimated delivery timescales will be provided once your order has been processed. If there are any delays due to stock availability, we will contact you as soon as possible with the option to wait or receive a full refund.
Please note that certain products may be subject to specific distance selling or delivery regulations. If you are unsure about a product or its delivery terms, we recommend contacting us before purchase.
You can cancel your order within 14 days of receiving your goods, in line with UK distance selling regulations. Once you’ve notified us, you have a further 14 days to return the item. Please contact us by email, phone or in writing before sending anything back.
Items must be returned in original condition and packaging, including all accessories, manuals and any promotional items. The cost of return is your responsibility and we strongly recommend insuring the goods, as refunds cannot be issued for damaged or incomplete returns. If items show excessive handling, are missing components, or cannot be resold as new, a reasonable deduction may be made.
Please note that used headphones (for hygiene reasons) and custom or special-order items cannot be returned. If you need assistance arranging a return, we’re always happy to help.
Product Summary
The Pro-Ject Tube Box DS3 B is a premium phono stage for customers who want the musical character of valves combined with the lower-noise potential of balanced vinyl replay. It is designed for more ambitious analogue systems, giving you a serious upgrade over entry-level phono stages while still offering the flexibility to work with both moving magnet and moving coil cartridges.
A big part of the appeal is the way it combines adjustability with genuine system-building potential. The Tube Box DS3 B offers balanced and single-ended inputs and outputs, adjustable gain, selectable capacitance and continuously variable impedance loading for MC cartridges. That makes it much easier to fine-tune the phono stage to your cartridge and system, rather than settling for a one-size-fits-all setup.
It is also built to help you get more from a high-quality turntable over the long term. The dual mono layout, precision RIAA equalisation, low-noise circuitry and tube output stage all contribute to a more refined, spacious and expressive presentation, while the front-panel controls make setup changes far more convenient than on many rivals. For customers wanting a more sophisticated phono stage with real upgrade flexibility and a richer, more engaging analogue sound, the Tube Box DS3 B is an outstanding option.
Key Benefits
- Balanced input and output options give you a clearer route into lower-noise, interference-resistant vinyl replay
- Valve output stage is designed to bring greater richness, space and musical involvement to your record collection
- Works with both MM and MC cartridges, making it easier to match into a wide range of serious turntable systems
- Continuously variable impedance loading helps you fine-tune MC cartridge matching more precisely during playback
- Adjustable gain and capacitance make it easier to optimise performance for your cartridge and partnering equipment
- Dual mono design helps preserve channel separation and supports a more spacious, controlled presentation
- Front-panel settings make system changes and cartridge matching much more convenient than hidden switch designs
- Solid aluminium casing helps shield the sensitive audio circuitry from outside interference
- 2 years manufacturers warranty, extended to 3 years if registered with Pro-Ject within 4 months of purchase
Technical Specifications
Phono Stage Details
- Product Type: Dual mono balanced tube phono preamplifier
- Tube Assembly: 2 x E88CC / 6922
- Compatible Cartridge Types: Moving Magnet (MM) and Moving Coil (MC)
- Input Impedance: Stepless 10 - 1000 Ohms, fixed 47 kOhms
- Input Capacitance: 50 / 150 / 300 / 400 pF
- Gain: 40 / 45 / 50 / 55 / 60 / 65 dB (+6 dB using XLR output)
- Output Voltage Typically: 500 mV / 1 kHz at 5 mV / 1 kHz (at 40 dB)
- Signal to Noise Ratio: Greater than 87 dBV, A-weighted
- THD: Less than 0.03%
- RIAA Accuracy: +/- 0.5 dB / 20 Hz - 20 kHz
- Subsonic Filter: 20 Hz with 18 dB per octave
- Inputs: 1 x 5-pin mini XLR, 1 x pair XLR, 1 x pair RCA phono
- Outputs: 1 x pair RCA, 1 x pair XLR
- Power Supply: 18 V / 1000 mA DC
- Power Consumption: Max 750 mA DC / less than 0.5 W standby
- Colour Options: Silver or black
Weight & Dimensions
- Dimensions: 20.6 x 7.0 x 19.4 cm (W x H x D)
- Weight: 1.56 kg without power supply
What’s in the Box
- Pro-Ject Tube Box DS3 B phono preamplifier
- Power supply
- Product documentation
