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- Available starting Friday 29 May, 2026
- Free shipping
- 1yr Manufacturer Warranty
- 5% Price Promise
Pro-Ject Tube Box DS3 B Balanced MM/MC Tube Phono Preamplifier SILVER
The Pro-Ject Tube Box DS3 B is a premium tube phono preamplifier designed for audiophiles seeking the warmth of vacuum tubes combined with the precision of balanced signal processing. Built on advanced circuit design and high-grade components, it delivers a refined, low-noise performance for both Moving Magnet and Moving Coil cartridges.
With fully balanced inputs and outputs, dual turntable connectivity, and continuously adjustable cartridge loading, the Tube Box DS3 B offers exceptional flexibility and control. Its symmetrical signal path reduces noise while preserving musical detail, making it an ideal choice for high-end analog systems that demand accuracy, depth, and tonal richness.
Features
- Tube-based phono preamplifier with balanced signal design
- Compatible with MM and MC cartridges
- Balanced XLR and 5-pin Mini XLR inputs
- Balanced XLR and RCA outputs
- Dual turntable connectivity with memory for input settings
- Continuously variable cartridge loading via front control
- Selectable gain levels from 40dB to 65dB
- Subsonic filter to reduce unwanted low-frequency noise
- High-quality polypropylene capacitors and audiophile-grade components
- Fully symmetrical signal path for improved noise rejection
- Front panel controls for easy system tuning
- Solid aluminum construction for reduced interference
Specifications
General
- Product Type: Tube phono preamplifier
- Cartridge Compatibility: MM and MC
- Tube Configuration: 2 x vacuum tubes
- Balanced Operation: Yes
- Subsonic Filter: Yes
- Adjustable Resistance Load: Yes
- Adjustable Capacitance Load: Yes
- Cartridge Loading: Variable
- Finish: Silver
Inputs & Outputs
- Inputs: 1 x pair RCA, 1 x pair XLR, 1 x 5-pin Mini XLR
- Outputs: 1 x pair RCA, 1 x pair XLR
- USB Output: No
- Optical Output: No
- Coaxial Output: No
- 3.5 mm Output: No
Performance
- Gain: 40 to 65 dB
- Signal-to-Noise Ratio MM: 102 dB
- Signal-to-Noise Ratio MC: 67 dB
Dimensions & Weight
- Carton Dimensions: 914.4 x 3302.0 x 182.88 mm
- Carton Weight: 2.27 kg
Power
- Power Supply: External AC adapter
- Plug Types Included: US, EU, UK
What’s in the Box
- Pro-Ject Tube Box DS3 B phono preamplifier
- 2 x vacuum tubes (installed)
- AC power adapter with DC cable
- Interchangeable AC plug inserts (US, EU, UK)
- User manual
Product Details
- Pro-Ject PJ29860291
-
Brand New : Factory Sealed
- EAN : 9120129860291
- EFLC : 16467
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Warranty
One Year Warranty
- Parts and Labour Warranty
- Canada-wide Coverage
- Pro-Ject Authorized
Returns
Easy Returns
- 30-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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