EV Electro-Voice 12″ passive loudspeaker with 65º x 65º Constant-directivity Varipath horn – Sx300E


The Electro-Voice Sx300 is a 300W, 12″ two-way, high-efficiency, constant-directivity compact speaker system with Ring-Mode Decoupling for increased intelligibility. The high-frequency section of the Sx300 utilizes a molded-in, 65° x 65° constant-directivity horn. This unique pattern contributes to high intelligibility, delivering vocals that sound natural, yet cut through in reverberant, noisy rooms. The horn’s unique Varipath throat geometry helps driver output to the corners of the room, resulting in more uniform coverage. High-impact polypropylene structural foam provides a stiff and extremely durable yet lightweight enclosure. Molded into the cabinet are a carrying handle and stand socket for mounting on 1-3/8″ stands. Rubber feet that are attached to the bottom of the cabinet and mating sockets that are molded into the top provide a means of stacking systems. The trapezoidal-shaped cabinet, in combination with the uniform, 65° x 65° directivity characteristics, make the Sx300 ideal for use alone or in arrays.



12″ passive loudspeaker

  • Compact, portable sound reinforcement
  • Designed for use alone or in arrays
  • Cast-frame DL12BFH woofer
  • 1.25-inch DH3/2010A titanium HF compression driver
  • 65º x 65º Constant-directivity Varipath horn
  • Ring-Mode Decoupling (RMD) for increased intelligibility
  • Power handling: 300 W continuous, 1200 W peak
  • Dual Neutrik Speakon(R) high-current connectors
  • Trapezoidal black or white polypropylene enclosure
  • Rubber feet and mating sockets for stacking
  • Integral handles, pole mount
Frequency Range (-10 dB)50 – 20000kHz
Minimum Impedance
Nominal Impedance (Passive)
HF Transducer1.25-inch DH3/2010A
Speaker TypeFull-Range, Mid-High, Two-Way
Woofer Size12inch
Powered or PassivePassive
Max. SPL/1m (calc)²131/123dB (Low Z/100V)
Coverage (Nominal -6 dB) H65° (Const.-dir. horn)
Coverage (Nominal -6 dB) V65° (Const.-dir. horn)
LF Transducer12-inch DL12BFH
System Power Handling (Continuous/Program/Peak)300/1200Watts (Long-Term/Short-Term)
Crossover Frequency1500Hz
Enclosure MaterialCopolymer Composite
Available ColorBlack or white
Sensitivity 1 W/1 m99dB
Height23.07″ (586mm)
Width16.89″ (429mm)
Internal CrossoverYes
Depth12.28″ (312mm)
Weight Net39.02lbs (17.7kg)
Axial Sensitivity (SPL, 1 W @ 1 m)99dB
Input Connections2 four-pin Speakon
Directivity Index11.1dB (+2.4/-4.1 dB)
Chassis Size304.8 mm


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