The ECP-G4 from Emphaser is a 4" (10cm) speaker set that impresses with its innovative technologies. The main features include the CRYSTALGRAIN compound cone of the woofer and the 25 mm fabric dome of the tweeter. The speaker set features powerful strontium ferrite magnets and an EMPHASER FlowMax die-cast aluminum basket for optimum sound stability. The crossover is specially designed to ensure the best possible phase alignment, while the two-stage level adjustment and high-quality components ensure precise sound output. With a rated power handling of 60 W RMS and a sensitivity of 84 dB, the ECP-G4 offers balanced sound performance in the frequency range from 95 Hz to 22 kHz. The scope of delivery includes tweeters, woofers/midrange drivers and crossovers.
The woofer
The new CRYSTALGRAIN compound cone is responsible for the warmth of the GRAVITY sound. It combines the high rigidity and damping effect of paper with the direct step response of the quartz crystals attached to the top. The cone thickness is chosen to provide the stability for heavy bass attacks and the necessary lightness for precise mids. The durable surround ensures that the ECP-G4 loses none of its precise reproduction even at high levels and therefore high cone excursions. The Compos owe their clean, crisp bass foundation and level capabilities to the powerful strontium ferrite magnets of the mid/woofer.
The carefully selected components are supported by the minimalistically designed EMPHASER FlowMax die-cast aluminum basket. The very open construction with its filigree struts gives the sound emitted from the rear maximum freedom and a minimum of unwanted reflective surfaces that affect the sound. And despite its filigree design, the construction offers maximum stability. Another innovation is the new EMPHASER screw terminal: although very solid, it takes up very little space and ensures reliable signal transmission thanks to the force-fit connection using solid hexagon screws and gold-plated contact surfaces.
The tweeter
The 25 mm tweeter with fabric dome convinces with its warm sound image and can reproduce even the smallest musical details. The cone geometry offers a uniform directional characteristic for excellent sound in a wide variety of installation situations. In addition to the low weight of the cone, surround and voice coil, the deliberate decision not to use ferrofluid is the main reason why the tweeter plays so vividly, spatially and without coloration. The protective grille with its very large opening area offers high sound permeability and low reflections. The supplied surface-mounted housing enables installation at two different dispersion angles for perfect adaptation to the vehicle acoustics.
The crossover
The components of the crossovers have been defined in intensive test series in the laboratory and in various vehicles in order to achieve the best possible phasing of the components in the smallest possible space. The result is authentic voices and instruments with precise stage imaging and impressive spatial depth. The crossovers are divided into a tweeter and a woofer branch. This enables simple installation directly at the installation location without having to lay new cables across the vehicle.
Main features woofer
- 10 cm midrange driver
- EMPHASER CRYSTALGRAIN compound membrane with inverse dustcap
- EMPHASER FlowMax aluminium die-cast basket with optimized temperature management
- Strontium ferrite magnet
- Butyl rubber surround
- Two-layer copper wire voice coil wound on a temperature-resistant aluminum voice coil former
- Durable Connex centering spider with woven-in voice coil cable
- EMPHASER screw terminal with gold-plated contact surfaces
Main features tweeter
- 25 mm fabric dome with neodymium magnet
- Housing with shallow installation depth
- Protective grille with very large opening area for high sound permeability and low reflections
- Surface-mounted housing for mounting at two different beam angles
Main features of crossovers
- 12 dB woofer / 12 dB tweeter filter
- Two-stage level adjustment for the tweeter
- Separate crossovers for tweeter and woofer for the best possible mounting comfort
- Use of high-quality air-core coils, MKP capacitors and MOX resistors in the direct signal path
- Pre-assembled connection cables
Technical specifications
- Rated load capacity: 60 W RMS
- Nominal impedance: 4 Ohm
- Frequency response: 95 Hz - 22 kHz
- Sensitivity 1W/1m: 84dB
- Installation diameter: 93 mm
- Installation depth: 45 mm
Scope of delivery
- 2 tweeters
- 2 woofer/midrange speakers
- 4 crossover units
- Optional loudspeaker cover: ESP-GR4
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