• 2 X 15″ (380 mm) Low Frequency Driver
  • 3.5″ (90 mm) Medium Frequency Driver
  • 1.75″ (44 mm) High Frequency Driver
  • Dual concentric design
  • High system efficiency
  • Point source reproduction
  • Phase coherent sound
  • High dynamic SPL
  • Low harmonic distortion
  • Exceptional transient response
  • Smooth and extended frequency response


The Pulz ESM4 3-Way Cinema Screen Speaker System has been specially developed as a cost effective solution for today’s competitive multiplex environment.

The system consists of 2 X 15” low frequency driver in conjunction with a unique coaxial Mid-High frequency driver. The 90°X 40° large format pattern control horn exhibits uniform Mid-High frequency response throughout the cinema auditorium.

The Mid-High coaxial driver has been specifically engineered to overcome the incoherency of the traditional 3-Way approach. It delivers exceptional dialogue clarity and sound imaging, superior to the conventional Mid-High configuration.

The dual 15″ drivers are independently loaded in a direct radiator bass-reflex enclosure. This technique avoids “sympathetic failure” and provides better interface options with the amplifiers. The large port area reduces turbulence at full power output and low frequencies. A heavy duty spring loaded push type terminals ensures secure connection to the LF driver.

The system can be conveniently bi-amped with the built in passive crossover between the Mid and High section and using the Pulz XO47 Active crossover. Full performance of the ESM5 system is achieved by an active tri-amplified configuration.

With its companion – the Pulz PZ 4820 power amplifier, the ESM4 is capable of of offering outstanding performance at an unbelievable price.

Frequency Response45Hz to 20kHz
Power RatingLF: 800W AES, 3200W peak;

MF: 150W AES, 1000W peak;

HF: 80W AES, 450W peak

SensitivityLF: 101dB @ 1W/1m;

MF/HF: 118dB @ 1W/1m

Maximum SPLLF: 130dB continuous, 136dB peak @ 1m;

MF/HF: 139dB continuous, 145dB peak @ 1m

Nominal ImpedanceLF: 4Ω; MF/HF: 8Ω
Recommended Amplifier600W to 1200W @ 4Ω
Low Frequency Driver2 X 15″ (380 mm) weather resistant long excursion woofer
Medium Frequency Driver3.5″ (90 mm) voice coil coaxial compression driver
High Frequency Driver1.75″ (44 mm) voice coil coaxial compression driver
Crossover500Hz Active, 6.5kHz Passive
FinishBlack impact resistant structured coating
ConnectorPush type binding post, cable upto 4 mm diameter
Enclosure18 mm MDF direct radiator vented enclosure
HornLarge format 90˚ horizontal X 40˚ vertical constant directivity horn
Dimensions (H X W X D)1534 mm X 726 mm X 760 mm  (60.3″ X 28.6″ X 30″)
Net Weight85 kg (187 lb)
Packed Weight92 kg (203 lb)