The ab

ove l













EP-4.3 Loudspeaker


  • Description
  • Features
  • Specifications

The new EP4.3 is the big brother to our top selling CS3 MK2.

It is the CS3 MK2 with a 15" open baffle woofer for extended bass response and the ability to run without a subwoofer.

It also comes with our $US600.00 Special Edition midrange/tweeter crossover. EP4.3 Efficiency is the same 95db as the CS3 MK2 but bass response now extends to 28Hz in a small open baffle design that will fill any reasonably sized room with Emerald's unique "almost live" sonic signature.

And just like all EP speakers the EP4.3 removes most of the rooms sonics so they will work in virtually all rooms. With its new Emerald Physics designed 12" point source professional midrange/tweeter driver system, the EP4.3 is a true 3-way, bi-amplified, dipole, controlled directivity speaker.

Cutting edge sonic performance establishes a new level of realism & dimensionality.

This new EP4.3 model does not share a single part from the original CS2 series products. It has new outboard Special Edition crossovers, DSP crossover/EQ, drivers, upgraded baffle, connectors and much improved cosmetics of the older CS series

The new Emerald point source midrange/tweeter offers amazing imaging and sound-staging.

The innovation continues in the Bass range with our unique Aperture Bass Propagation Technology.

This proprietary system is used for the custom Emerald 15" dipole woofer, improving low frequency power and linearity, while improving on the speed and articulation of the original CS2.3.

The new custom designed Emerald 15" woofer moves 80% more air than the original CS series woofers so a single 15 gets us almost as much bass as the dual 15's of the older models.

DSP equalization and active crossover functions are provided by the included Emerald Physics DSP2.4 Digital Processor and the upgraded included $US600.00 passive Special Edition crossover uses custom Emerald Physics caps as well as many other upgraded parts & internal OCC long grain wire

EP4.3 Specifications * :
System Type: 3-way, Bi-amplified Dynamic Dipole - DSP equalized
Frequency Range: 28Hz–22kHz -1dB/+.5dB from target curve
Frequency Linearity: +/- 1dB from 100Hz-20kHz from target curve
Impedance: 8 Ohms nominal bass / 8 ohms midrange/tweeter
Max Power input: 150W RMS, 300W program
Sensitivity: 95dB 1.83V @ 1M @ 1kHz
Drivers: High Frequency:  Custom Emerald Physics 1 inch exit Titanium compression driver
                Mid Frequency: Custom Emerald Physics 12 inch paper cone coaxial
               Low Frequency: Custom Emerald Physics 15 inch paper cone
Crossover: Special Edition Mid/high –Passive outboard 3rd order acoustic filter @ 900Hz.
                    Low/Mid –External DSP Asymmetrical active network @ 200Hz/250Hz.

Frequency contour: Digital equalization – Emerald Physics DSP2.4


Standard Finish: Matte Black  

Optional Finishes: Automotive 8 stage Tri-coat finishes in 5 colors $US1200.00
Ancient Cocobolo and Santos Rosewood faux wood Tri-coat $US1800.00
Dimensions: 38.75”H x 22”W x 3”D (Baffle) (15” with rear base)

Weight: Net: 65 lbs each, Shipping: 80 lbs each

*Specifications subject to change