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  5. ECP-G4

ECP-G4

60 Watt

ECP-G4

Technical Highlights

  • Rated power 60 watts RMS, impedance 4 ohms, frequency 95 Hz-22 kHz.
  • Strontium ferrite magnet, CRYSTALGRAIN membrane, die-cast aluminum basket.
  • 25 mm fabric dome, neodymium magnet, two-stage level adjustment.
  • More technical details
€173.73
-13% €199.00 €173.73
2% discount with credit card

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ProductECP-G4

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1 year extra warranty

Every product purchased from Masori includes an additional year of warranty in the third year after purchase (months 25–36). We cover repair or replacement free of charge for covered warranty claims. Automatic and free – exclusively for Masori customers. Your statutory rights remain unaffected.

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datasheet
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€199.00 €173.73

The ECP-G4 from Emphaser is a 4-inch speaker set that impresses with innovative technologies. Key features include the CRYSTALGRAIN compound diaphragm of the woofer and the 25 mm fabric dome of the tweeter. The speaker set offers powerful strontium ferrite magnets and an Emphaser FlowMax aluminum die-cast basket for optimal sound stability. The crossover is specially designed to ensure the best possible phase alignment, while the two-stage level adjustment and high-quality components provide precise sound output. With a rated power handling of 60 watts RMS and a sensitivity of 84dB, the ECP-G4 delivers balanced sound performance in the frequency range from 95 Hz to 22 kHz. The package includes tweeters, woofers/midrange drivers, and crossovers.

The Woofer

The warmth of the GRAVITY sound is thanks to the new CRYSTALGRAIN compound diaphragm. It combines the high stiffness and damping effect of paper with the direct transient response of the quartz crystals applied on the top side. The diaphragm thickness is chosen to provide stability for powerful bass attacks and the necessary lightness for precise midrange. The durable surround ensures that the ECP-G4 does not lose any of its precise reproduction even at high levels and thus high diaphragm excursions. The clean, crisp bass foundation and its level capabilities are owed to the strong strontium ferrite magnets of the mid/woofer.

The carefully selected components are mounted on the minimally designed Emphaser FlowMax aluminum die-cast basket. The very open construction with delicate struts gives the rear-radiated sound maximum freedom and minimizes unwanted reflective surfaces that could affect the sound. Despite its delicate design, the construction offers maximum stability. Another innovation is the new Emphaser screw terminal: although very solidly built, it requires very little space and ensures secure signal transmission with its force-fit connection using massive hexagon screws and gold-plated contact surfaces.

The Tweeter

The 25 mm fabric dome tweeter impresses with its warm sound and can reproduce even the smallest musical details. The diaphragm geometry offers a uniform directivity pattern for excellent sound in various installation situations. Besides the low weight of diaphragm, surround, and voice coil, it is especially the deliberate omission of ferrofluid that makes the tweeter play so lively, spatial, and distortion-free. The protective grille offers high sound permeability and low reflections due to its very large opening area. The supplied mounting housing allows installation at two different radiation angles for perfect adaptation to the vehicle acoustics.

The Crossover

The components of the crossovers have been defined through intensive test series in the lab and in various vehicles to achieve the best possible phase alignment of the components with minimal space requirements. The result is authentic-sounding voices and instruments with precise stage imaging and impressive spatial depth. The crossovers are divided into a tweeter and woofer branch. This allows easy installation directly at the mounting location without the need to lay new cables across the vehicle.

Main Features Woofer

  • 4 inch midrange driver
  • Emphaser CRYSTALGRAIN compound diaphragm with inverted dustcap
  • Emphaser FlowMax aluminum die-cast basket with optimized temperature management
  • Strontium ferrite magnet
  • Butyl rubber surround
  • Two-layer copper wire voice coil wound on a heat-resistant aluminum voice coil former
  • Durable Connex centering spider with integrated voice coil lead
  • Emphaser screw terminal with gold-plated contact surfaces

Main Features Tweeter

  • 25 mm fabric dome with neodymium magnet
  • Housing with low installation depth
  • Protective grille with very large opening area for high sound permeability and low reflections
  • Mounting housing for installation at two different radiation angles

Main Features Crossovers

  • 12 dB woofer / 12 dB tweeter filter
  • Two-stage level adjustment for the tweeter
  • Separate crossovers for tweeter and woofer for optimal installation convenience
  • Use of high-quality air coils, MKP capacitors, and MOX resistors in the direct signal path
  • Pre-assembled connection cables

Technical Specifications

  • Rated power handling: 60 Watt RMS
  • Nominal impedance: 4 Ohm
  • Frequency response: 95 Hz – 22 kHz
  • Sensitivity 1W/1m: 84dB
  • Mounting diameter: 93 mm
  • Mounting depth: 45 mm

Scope of delivery

  • 2 tweeters
  • 2 woofers/midrange drivers
  • 4 crossovers
  • Optional speaker cover: ESP-GR4

datasheet

Open data sheet

Frequently Asked Questions about ECP-G4

What technical features does the ECP-G4 from Emphaser offer?

The ECP-G4 from Emphaser impresses with its 4-inch Speaker Set featuring a CRYSTALGRAIN compound membrane, known for its warm sound and precision. The 25 mm Tweeter with a textile dome surprises with holographic detail richness and vivid precision. The Speaker Set also offers powerful strontium ferrite magnets and an Emphaser FlowMax aluminum die-cast basket for optimized sound stability. The specially designed Crossover ensures the best possible phase alignment, projecting voice and instrument sounds photorealistically into the space. With a nominal power handling of 60 watts RMS and a sensitivity of 84dB, it enables a balanced sound performance in the frequency range of 95 Hz to 22 kHz.

How are the woofers of the ECP-G4 constructed?

The woofers of the ECP-G4 use the innovative CRYSTALGRAIN compound membrane, which combines the stiffness of paper with quartz crystals for quick rebound response. The strictly balanced membrane thickness maintains stability and lightness simultaneously, ideal for precise mids and powerful bass reproduction. Strontium ferrite magnets provide a powerful bass foundation, while the durable Connex centering spider keeps the voice coil perfectly centered. The robust Emphaser FlowMax aluminum die-cast basket offers optimized temperature management and minimizes reflective surfaces that could affect the sound. This is complemented by a solid screw terminal for reliable signal transmission with gold-plated contact surfaces.

What makes the tweeter of the Emphaser ECP-G4 so special?

The 25 mm tweeter of the ECP-G4 is characterized by its textile dome, which reproduces even the finest musical details with great care. The sound remains lively, spatial, and free from coloration, thanks to the conscious omission of ferrofluid. With a uniform directivity pattern, the membrane geometry ensures excellent sound even in varying installation situations. The neodymium magnet reduces overall weight and improves sound sensitivity. The housing allows for flexible mounting at two different radiation angles. A protective grille with a very large opening area guarantees high sound permeability and minimal reflections to present the original source material unaltered.

What role does the crossover of the ECP-G4 Speaker Set play?

The Crossover of the ECP-G4 is essential for the tonal and phase alignment of the speaker components, the result of lengthy laboratory and vehicle tests. With separate crossovers for the Tweeter and woofer, easy installation is enabled without running cables across the vehicle. The crossover uses high-quality air coils, MKP capacitors, and MOX resistors to create a direct and optimal signal path. The two-stage level adjustment for the Tweeter ensures that different acoustic requirements within the vehicle can be precisely adjusted. The remarkable spatial depth and precise stage representation make the crossover the heart of the speaker design.

How is the construction of the Emphaser FlowMax basket for the woofer optimized?

The Emphaser FlowMax aluminum die-cast basket is lightweight yet stable. Its open design with delicate struts allows maximum space for rearward sound emission, significantly reducing unwanted reflections. This leads to a cleaner sound profile. The basket design contributes to acoustic control by supporting cooling through optimized temperature management. These features work together to significantly enhance the performance and longevity of the ECP-G4 sets. The die-cast basket ensures high load capacity and durability, even under extreme conditions, allowing the low and mid tones to flow clearly and unobstructed through the space.

What tips are there for installing the ECP-G4 in a vehicle?

The installation of the ECP-G4 is ideally done in vehicles with a mounting diameter of 93 mm and a mounting depth of 45 mm. For optimal placement of the Tweeter, the included mounting housings are recommended, allowing adjustment at two different radiation angles. This takes into account the special directional characteristics and enables optimal sound experiences in the vehicle interior. The crossovers are compact and can be mounted directly at the installation site without extensive rewiring. This technique saves time and effort and additionally ensures that the already meticulously tuned frequency adjustment is not affected by installation errors.

How does the diaphragm of the woofer influence the sound quality in the Emphaser ECP-G4?

The CRYSTALGRAIN compound membrane of the woofer in the ECP-G4 is the heart that significantly contributes to sound quality. It combines the advantages of paper, which provides stiffness and damping, with quartz crystals that optimize the transient response. This specific material combination ensures clean, clear bass while achieving impressive precision at midrange frequencies. With its specially tuned thickness, the membrane can be stable and lightweight at the same time, making it perfect for musical precision, even at high volumes. This complex structure results in uncompromising reproduction without distortion, even in the dynamic range.

What frequency range do the speakers of the ECP-G4 set operate in?

The ECP-G4 Speaker Set from Emphaser operates in a frequency range of 95 Hz to 22 kHz, covering a wide range of tones. This bandwidth allows you to experience both deep bass frequencies and high tones with vitality and clarity. The use of high-quality components in the crossover design, as well as the special membrane geometry of the CRYSTALGRAIN composite, contribute to the efficient and even transmission of this large frequency range. This means that everything from powerful bass beats to fine high notes is transmitted clearly and authentically, creating a remarkable, balanced sound experience.

What components are included with the Emphaser ECP-G4?

The Emphaser ECP-G4 includes two tweeters and two woofers/midrange speakers, equipped with high-quality CRYSTALGRAIN compound membranes. Also included are four separate crossovers that can be flexibly mounted according to installation requirements. An optional accessory is speaker covers labeled ESP-GR4. These components are carefully coordinated to ensure optimal sound reproduction while facilitating the installation process. The clear structure provides you as a user the opportunity to achieve a convincing sound image without many additional adjustments.

Why does the tweeter not use ferrofluid?

The conscious decision to forgo ferrofluid in the tweeter of the ECP-G4 has several advantages. The absence of ferrofluid allows the fabric dome to sound lively and dynamic while minimizing coloration. This results in clearer sound reproduction with better spatial imaging. Additionally, the lightweight dome reduces the overall weight, which in turn contributes to the speaker's overall agility and responsiveness. The very large opening area of the protective grille ensures that high sound permeability is combined with minimal reflections to provide an enveloping, natural sound image that excels at both low and high levels.

Manufacturer information/responsible person

ACR Brändli + Vögeli AG
Roland Brändli
Bohrturmweg 1
5330 Bad Zurzach
Switzerland

EU responsible person:
ACR S + V GmbH
Industriestr. 35
79787 Lauchringen
Germany

Contacts: compliance@acr.eu

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