Emerald Physics CS3 Infinite Baffle Speakers with Active EQ Box and REL Subwoofer


Open baffle, high efficiency, controlled directivity, digitally crossed-over and EQ’d, horn-loaded, time-coherent pair of loudspeakers. 

Now thats a mouthful!

The result is outstanding. Read all about it!.

This listing includes the speakers in their original boxes, an active EQ box (Emerald Physics DSP 2.4), REL Subwoofer, and a power cord.

The speakers are in great condition with no obvious sign of use. The sub has a few scuffs on the high gloss finish, virtually impossible to keep perfect.

• Type: 2-Way, Passive, Dynamic Loudspeaker
• Dipole below 900 Hz, Monopole above 900Hz
• Controlled directivity design, DSP controlled
• Concentric midrange/treble driver assembly
• Impedance: 8 Ohms
• Treble Driver: One 1 inch (25mm) exit professional compression driver
• Bass / Mid Driver One 12 inch (300mm) diameter Coaxial professional driver
• Sensitivity: 95 dB 2.83V @1M @ 1kHz
• Crossover: Mid/Treble: 900Hz - Internal Passive network
• Amp Configuration: Single stereo amplifier ( amplifiers not included)
• Signal Processing: Outboard 2 channel DSP (digital signal processing) unit Emerald Physics proprietary software pre-loaded
• Frequency Response: 40Hz - 22kHz -3dB (with DSP correction)
• Amplitude Linearity: 100Hz-20kHz +/- 0.5dB

• Height: 41 inches (1041mm)
• Width: 16 inches (406mm)
• Depth: 1.75 inches (44.5mm) Baffle 8 inches (203mm) Total Depth
• Net Weight: 40 lbs (18.15kg) each
• Shipping Weight: 100 lbs (45.4kg) 2 in cartons

Please click here for detailed specifics regarding our specialized packing process that separates us from the rest.



Original Boxes





Not Applicable



Physical Condition


Working Condition


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