Tube Box II vs Cambridge Audio Azur 651P
The Azur 651P's signal-to-noise is 86 dB against the Tube Box II's 84 dB, its mm gain 39 dB against 40 dB, its mc gain 55 dB against 60 dB, and its thd 0.005% against 0.050%.
AI-generated product photo — not official manufacturer imagery.
AmplifiersPhono Pre-AmpsDiscontinued
Estimated price (community-sourced)
$150
Around — community and catalog average, updates slowly
About the Tube Box II
The Pro-Ject Tube Box II is a high-quality phono preamplifier that enhances the listening experience with its warm and detailed sound. It features two ECC83 (12AX7A) vacuum tubes, providing a gain of 40dB for MM and 60dB for MC cartridges. The unit includes a switchable subsonic filter to reduce low-frequency rumble and an all-metal chassis for improved shielding against vibrations and electromagnetic interference. The external power supply helps minimize noise and interference, ensuring a cleaner audio signal.
Specifications
Analog Output
Analog signal output specifications
- THD
- 0.050%
- SNR
- 84 dB
- Output Voltage
- 0.3V RMS
Phono Preamplifier
Phono stage specifications
- MM Gain
- 40 dB
- MC Gain
- 60 dB
- Adjustable Loading
- No
- Adjustable Capacitance
- No
Physical Dimensions
Size, weight, and appearance
- Dimensions
- 103 × 76 × 125 mm (W × H × D)
- Weight
- 0.81 kg (2 lbs)
Specifications are community-contributed and may not be accurate or complete. Verify all details with the manufacturer before making purchasing decisions. Terms & Conditions