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PRO-JECT Sub Box 50
Compact Audiophile Subwoofer.
Power: 50 W RMS / 100 W peak
Woofer: 100 mm (down-firing)
Frequency: 65 Hz - 200 Hz
Inputs: RCA (low level) and speaker (high level)
Crossover: Adjustable in 9 steps
Design: anti-resonant MDF, glossy finish (white, black, red)
Functions: Auto power on and standby
Ideal for stereo and home cinema systems. Precise bass, compact format.
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Pro-Ject Sub Box 50. Compact Subwoofer with Audiophile-Grade Performance
The Sub Box 50 marks Pro-Ject's debut in the subwoofer category—delivering rich, punchy, and immersive low-end performance in an elegant and ultra-compact form. Designed for modern audiophiles with limited space but uncompromising expectations, it seamlessly enhances stereo and home theater setups with depth and precision.
Compact Form, Big Sound
Despite its discreet footprint, the Sub Box 50 packs a serious punch. The down-firing 100 mm woofer ensures even bass dispersion, creating an enveloping low-frequency response that fills the room with a natural sense of weight and presence.
The solid MDF anti-resonant cabinet reduces unwanted vibrations and coloration, while the sleek, high-gloss finish in black, white, or red adds a stylish touch to any room—whether minimalist, classic, or contemporary.
Smart Connectivity for All Systems
Designed for universal compatibility, the Sub Box 50 integrates effortlessly with a wide range of audio systems:
Low-level RCA input (stereo/mono)
High-level speaker inputs: Ideal for amplifiers without dedicated subwoofer outputs
Adjustable crossover frequency: 9-step tuning to perfectly match your main speakers
Auto power on/off: Activates on signal detection and enters standby after 10 minutes of inactivity
Technical Specifications
Output Power: 50 W RMS / 100 W Peak
Frequency Response: 65 Hz – 200 Hz
Woofer Driver: 100 mm (4"), down-firing
Total Harmonic Distortion + Noise (THD+N): 0.015% @ 1 W
Signal-to-Noise Ratio: 72 dB
Input Sensitivity:
140 mV (low-level input)
3.5 V (high-level input)
Power Consumption:
Standby: 0.4 W
No signal: 10 W
Max output: 101 W
Dimensions (W × H × D): 205 × 280 × 205 mm
Weight: 6 kg
A Perfect Match for Bookshelf Speakers
The Sub Box 50 is the ideal low-frequency companion for compact speakers such as the Pro-Ject Speaker Box 5 and 10, adding body and depth to both music and movies. Its elegant design, smart connectivity, and dynamic performance make it the go-to Hi-Fi subwoofer solution for modern, space-conscious audiophiles.
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