Project Tube Box E Phono Stage
Experience warm, analogue sound with this entry-level tube phono stage, designed for vinyl lovers seeking rich audio and flexible cartridge support.
- Precise passive & active RIAA equalisation
- Fully discreet circuit design without OpAmps
- Ultra low noise circuitry with FET input stage
- Well-filtrated high-voltage anode power supply
- MM & MC Compatibility
- Dual-mono electrical design
- Solid metal casing protects from interferences

Elegant Design Meets Practical Engineering
The Tube Box E brings classic tube warmth to your turntable setup in a sleek, miniature form. Its all-metal enclosure shields against unwanted interference, while the finely machined aluminium front panel adds a touch of sophistication. Available in silver or black, it blends seamlessly into any hi-fi system.
Pure Analogue Performance, Made Simple
Inside, a fully discrete circuit design avoids operational amplifiers (OpAmps), resulting in ultra-low noise and accurate RIAA equalisation. This means your records sound clearer and more natural, with lush mids and a relaxed tonal character. Dual mono circuitry enhances channel separation, delivering a more immersive stereo image.
Flexible Features for Vinyl Enthusiasts
Supporting both MM and MC cartridges, the Tube Box E offers front panel gain control and a subsonic filter to reduce rumble. Loading options are easily adjustable underneath, allowing precise matching to your cartridge. Replaceable ECC83 tubes invite sound-shaping through tube rolling, giving you control over your audio signature.
- Input Impedance (MM): 47 kΩ
- Input Impedance (MC): Variable 10 - 2,000Ω
- Phono Stage Capacitance (MM): 47, 147, 267, 367, 487 or 587 pF
- Phono Stage Gain (MM): 40, 43, 50, 53 dB
- Phono Stage Gain (MC): 50, 53, 60, 63 dB
- Phono Stage Equalization Options: RIAA
- Subsonic Filter: at 20Hz with 18dB/octave
- RIAA Accuracy (20Hz - 20kHz): +/- 0,5 dB
- Valves: 2 x ECC83
- THD (MM Input): <0,03 %
- THD (MC Input): <0,07 %
- Noise Floor (MM): 77 dBA
- Noise Floor (MC): 65 dBA
- RCA Input(s): 1 x RCA Pair
- Fixed Analogue Output(s): 1 x RCA Pair
- External Power Supply Rating: 18V-1A DC
- Maximum Power Consumption: <1 W
- Additional Dimensions (W x H x D): With Sockets: 103 x 73 x 131 mm
- Dimensions (W x H x D): 103 x 73 x 115 mm
- Weight: Without Power Supply: 4.5 kg