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Pro-Ject Audio Systems Speaker Box 3 E Carbon
Compact audiophile speaker
- 2-way bass reflex principle
- Audiophile flat frequency response
- Fiber glass carbon woofer
- Highly detailed sound stage
- Non-resonating MDF cabinet
- Magnetic speaker grills included
*Wall mount sold separately
Size doesn‘t matter.
The Speaker Box 3 E Carbon proves that a small speaker can sound big. Due to its compact size, the speaker is ideal for use as a desktop monitor, but also for home cinema systems. Wall mount brackets are available separately.
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Compact Pro-Ject Speaker Box 3 E Carbon delivers a refined nearfield sound with clear, detailed mids and smooth highs from its silk-dome tweeter, plus a carbon-fiber driver that tightens low end. Marco Lisi praised its precise imaging and build; the rear-ported design yields tight, controlled bass that favors accuracy over deep extension.
Pros
- Smooth, refined treble and clear mids driven by the 0.75-inch silk-dome tweeter, offering low-fatigue detail for vocals and acoustic instruments.
- Well-engineered E Carbon cabinet and carbon-fiber/glass bass-mid driver deliver premium fit-and-finish and controlled impulse response for the class.
- Focused, precise imaging and compact nearfield presentation make these ideal for desktop listening and small home-cinema setups.
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Cons
- Limited bass extension (specified to ~83 Hz); bass is tight and controlled but lacks deep low-end authority without a subwoofer.
- Modest 85 dB sensitivity and 4-ohm nominal impedance mean the speakers benefit from a capable amplifier to reveal full dynamics and slam.
Sound Quality
81/100
Bass
76/100
Small 3" carbon-fiber bass/mid driver in a rear-ported cabinet limits low-frequency extension; the stated response to 83 Hz confirms modest bass reach. Porting helps a bit for perceived weight, but the combination of small driver, 3" woofer and 85 dB sensitivity means bass will be tight rather than deep and benefits from a sub for full-range listening.
Mid
84/100
A dedicated 3" cone handling bass/mid and a silk-dome tweeter point to clear, present mids with good timbral detail for vocals and acoustic instruments. Expect a generally neutral-to-warm midrange that will convey body well within the speaker's bandwidth.
Treble
86/100
0.75" silk dome tweeter and a specified 20 kHz top end imply smooth, non-fatiguing treble with decent air and extension. The silk dome and compact cabinet should favor refinement over bright or aggressive top-end presentation.
Soundstage Imaging
82/100
Compact sealed footprint with small drivers tends toward a focused, intimate soundstage rather than a very wide one. Expect good center imaging and instrument placement for nearfield/listening-desk use, with some room and placement sensitivity affecting perceived width and depth.
Dynamics
78/100
Rated sensitivity of 85 dB and 4-ohm nominal impedance mean the speaker benefits from a capable amp to unlock punch. Within its size it should offer controlled microdynamics, but absolute macro headroom and slam will be limited compared with larger monitors or floorstanders.
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Build Quality
86/100
Pro-Ject's 'E Carbon' construction and use of carbon-fiber/glass drivers point to solid engineering and premium materials for the price. Compact, well-finished cabinets and lightweight build suggest good fit-and-finish and driver quality for this segment.
Features Connectivity
80/100
Passive single-post bookshelf speaker: passive baseline applied. No deduction for lacking DSP/streaming — standard terminal arrangement expected for this class.
Value for Money
72/100
At ~€/$299 the Speaker Box 3 E Carbon offers attractive materials and refined treble/mid performance, but limited bass extension and modest sensitivity temper the value proposition. Compared with other compact monitors near $300, it trades deeper low end for refinement and brand cachet.
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