emphaser ECP-G4 Lautsprecher Komponenten system Instruction Manual

emphaser ECP-G4 Lautsprecher Komponenten system

Specifications:

• Models: ECP-G4, ECP-G5, ECP-G6
• Designed and Engineered in Switzerland, Made in China
• Recommended Cable Cross Section: 2.5 mm2

Product Information

The GRAVITY-series component system includes woofers, tweeters, and crossovers designed for high-quality sound reproduction in vehicles. The system is designed to be installed by authorized dealers or self-installed by customers following detailed instructions.

Product Usage Instructions

• Mounting :
  Choose the best mounting locations for the tweeters and mid/woofers. Consult your authorized EMPHASER dealer for assistance if needed.

• Tweeter Placement:
  Ensure tweeters are angled correctly and not directly pointing at the listener to avoid side-biasing.

• Crossover Mounting and Connection:
  Connect all speaker cables to the crossover with correct polarity. Reversing the polarity of tweeter cables may improve sound quality.

• Cable Cross Section:
  Use good quality speaker cables with a minimum cross section of 2.5 mm2 for optimal sound quality.

FAQ:

• Q: Can I self-install the GRAVITY-series component system?
  A: Yes, you can self-install the system following the detailed instructions provided. For any queries, contact your authorized EMPHASER dealer.

• Q: What is the recommended cable cross section for speaker cables?
  A: The recommended minimum cable cross section for speaker cables is 2.5 mm2 to ensure optimal sound quality.

Congratulations!
And thank you for purchasing this high quality component system from our GRAVITY-series. If you plan on installing the system by yourself, please read the following instructions carefully before you attempt the installation. For any further information about this product, please contact your authorized EMPHASER dealer.

ABOUT THIS LOUDSPEAKER SYSTEM

The components used in this GRAVITY system have been carefully selected and precisely matched: Due to its high damping and rigidity, the CrystalGrain compound cone of the woofers is ideally suited for the detailed and natural sound reproduction quality in the intended application range. The 25 mm tweeter with fabric dome convinces with its pleasant sound image and the ability to bring out even the finest musical details. The easy-to-install crossovers have been developed in extensive tests with the aim of achieving the best possible phasing of the tweeter and woofer in the crossover area. The result is an immersive musical experience with authentic voices and instruments and their precise positioning on the imaginary stage with an impressive spatial depth. EMPHASER wishes you much pleasure with this outstanding speaker system.

KEY FEATURE WOOFER

• Aluminum diecast-basket with optimized temperature management
• Strontium-ferrite magnet motor
• CrystalGrain cone with inverted dust cap
• Butyl-rubber surround
• Two layer copper voice-coil, wound on temperature resistant aluminum voice-coil former
• Long-living Connex-spider with woven tinsel leads
• Gold-plated screw terminals

KEY FEATURES TWEETER

• 25 mm fabric dome
• Neodymium magnet motor
• Housing with low mounting depth
• Grill with large hexagon holes for high sound permeability and low reflection
• Mounting adapter for the installation in two angles

KEY FEATURES CROSSOVERS

• Separated crossovers for tweeter and woofer for convenient installation
• Use of high quality air coils, MKP capacitors and MOX resistors in the direct signal path
• 12 dB/Oct. Tweeter / 12 dB/Oct. Woofer
• Two-level tweeter volume attenuation

BOX CONTENT

• 2 x Woofer
• 2 x Woofer crossover
• 2 x Tweeter
• 2 x Tweeter crossover
• 2 x Mounting adapter
• 1 x Manual

RECOMMENDED EMPHASER ACCESSORIES

• Speaker grilles:
  • SP-GR4 10 cm cover
  • ESP-GR5 13 cm cover
  • ESP-GR6 16.5 cm cover
• Damping material:
  • ESP-DM1 Butyl mat+absorber
  • ESP-DM2 Butyl mat+absorber Starter pack
  • ESP-DM3 Fleece mat
  • ESP-DM4 butyl mat bulk pack
• Speaker cable:
  • ESP-RS15 15 m 1.5 mm2
  • ESP-RS25 15 m 2.5 mm2
  • ESP-RSL6 15 m snakeskin sleeve
  • ESP-RSL8 15 m snakeskin sleeve

MOUNTING

The first step of a successful install is to choose the best mounting locations for the tweeters and mid/woofers. Usually, cars come with factory speaker openings for mid/woofers. If you cannot mount the mid/woofers to an existing factory cutout, the alternative is to buy a set of car specific speaker mounting adapters, to provide a stable platform for the mid/woofer mounting. In such a case, we recommend that you consult your authorized EMPHASER dealer to ask for his assistance.

TWEETER PLACEMENT

• The placement of the tweeters has a profound influence on the front staging of your component system. Depending on the orientation and the relative height of the mounting location of the tweeters, different loudness levels in the treble region will result and there are also different frequency responses due to the directional characteristics of the tweeters. In addition, the installation location of the tweeters also has an influence on the spatial imaging of the systems. Due to the different distances of the sound, there can be differences in the sum of the individual sound components of tweeter and bass-midrange speaker around the crossover frequency. Therefore, if possible, care should be taken to ensure that the distances between the ear and the woofer/tweeter are approximately equal. The volume of the tweeters can be adjusted via the two different output cables of the crossover.
  • To determine the best tweeter location, it may be necessary to carry out short listening tests with the tweeter mounted to different locations inside the vehicle. For this, double sided tape can be used.
  • Set all tone controls, i.e. pre-EQ, treble / bass and loudness functions of your head unit to the neutral position first, before you attempt listening to the speakers installed in your car.
• The influence of the tweeter mounting location on the front staging is profound – and care must be taken to achieve a good compromise between unobtrusive mounting and good sound quality.

Examples of different tweeter mounting locations, and the results that are most frequently obtained, are explained below:

1. A-Pillar:
   Best option concerning the depth of image and overall sound balance of the component system. Not that easy to get right, i.e. excessive mounting effort.

2. Dash Board:
   Sometimes aggressive and overly brilliant treble reproduction caused by the horn loading effects of the front window. Setting tweeter to -3 dB may help.

3. Window Triangles:
   Bright sound combined with a high soundstage, sometimes sounding a bit “nervous” with side biasing.

4. On the upper end of the door panel:
   Balanced sound with good staging qualities, reduced sound staging and with side biasing.

5. Right on top of the mid/woofer:
   “Dull” sound, especially with a person sitting on the passenger‘s seat.

Attention: The main radiation axis of both tweeters should cross at a virtual point approx. in the center between front of passenger and driver’s seat. A direct “on-axis” installation of the tweeters, where they aim or point at the listener, is not recommended. The result of tweeters aiming too much in direction of the listener is called “side-biasing”. The sound seems to originate from the left front door instead of playing in the center of the dash board!

ANGLED MOUNTING OF THE TWEETER
The tweeter mounting adapter provides two bearing surfaces with two possible radiation angles. Inside the adapter you can spot two areas with implied holes for the cable and the fixing screws. Chose the area you want the way to mount the adapter and drill out the holes completely: 6 mm for the cable and 2.5 mm for the screws. Mark the location where you are going to mount the tweeters. Use the mounting adapter as a template and mark the holes with a 6 mm diameter for the cables and two 2.5 mm holes for the screws. Drill the holes and mount the adapter with two screws. Feed the wire through the bigger hole and connect it to the crossover. Lock the tweeter by pushing it down into the mounting adapter.

FLUSH MOUNTING OF THE TWEETER
After choosing the best mounting location, make sure there is at least 18 mm of clearance behind the mounting surface (cable is not taken into account!), before you start to mark or cut anything! Cut a hole with exactly 44 mm diameter into the mounting surface using a power drill and a circle cutter tool. Lock the tweeter by pushing it down into the hole. To definitely secure the tweeter in the hole you can fix it with hot glue or adhesive Butyl tape from behind. Attach the wire to the crossover.

CROSSOVER MOUNTING AND CONNECTION

• Find a suitable mounting location for the crossovers. The crossovers can be mounted in an existing cavity behind the door panel or below the dashboard. It is advantageous for adjustment work at a later time if the crossovers remain easily accessible. Connect the feed cables from the tweeters or woofers and from the amplifier to the respective cross-overs: the tweeter crossover is marked with TW for the connection to the tweeter and the matching tweeter plugs: red corresponds to the plus, black to the minus wire. The woofer crossover is marked IN for input and WF for woofer. The woofer wires are already prefabricated for trouble-free and safe connection on the terminal of the woofer.
• Observe the polarities indicated and make sure that everything has been connected correctly. All speaker cables must be connected to the crossover with correct polarity, i.e. plus to plus, minus to minus. The sound quality of speakers with the wrong polarity is often dramatically poor. Missing bass, squawky midrange or extremely diffuse sound are the result of unintentional polarity reversal of the cables.
• Pro advice: Even if the electrical phase of the speakers is correct, i.e. according to the connection diagram, the resulting acoustic phase can deviate from the desired result depending on the installation location and tweeter orientation. Therefore, you should definitely try whether reversing the polarity of BOTH cables of the tweeter leads to a more harmonious sound with better depth of soundstage.

CABLE CROSS SECTION
If longer distances from the amplifier to the crossovers have to be overcome, use good quality speaker cables with a minimum cross section of 2.5 mm2. Failure to do so will affect sound quality in a negative way.

CROSSOVER ADJUSTMENTS

• Finally, the tweeter level is adjusted to the given vehicle acoustics and your own taste. This volume level adjustment takes place via slide switch in the crossover and may also be changed later after the system has run in.
• 0 dB position is usually the setting that provides a good tonal balance for most installs. It is recommended for the most tweeter positions.
• -3 dB as a general rule of thumb, this position is best for tweeters that are mounted very close to the listener’s head like window triangles or top of the door panels.

TESTING OF THE INSTALLED SYSTEM
Slowly turn up the volume of your head unit and listen for distorted sounds. If everything appears to be okay and it just sounds right, check out the speaker balance of the left and right side by adjusting the balance control of your head unit. Shifting the balance to the left channel should provide you with sounds coming solely from the left speaker system, while shifting the balance to the right should do the same for the right speakers. If anything appears to be wrong, you must recheck the wiring of the x-overs, the amp or the mid/woofers.

WARRENTY CARD

EU LEGAL REPRESENTATIVE:
ACR S & V GmbH
Industriestraße 35
D-79787 Lauchringen, Germany
MANUFACTURER :
ACR, Brändli + Vögeli AG, Bohrturmweg 1 CH-5330 Bad Zurzach, Switzerland
Phone: (+41) (0) 56 269 64 64
Fax: (+41) (0) 56 269 64 65
mail@acr.eu , www.acr.eu Designed and Engineered in Switzerland, Made in China

www.emphaser.com

References

• ACR – Car HiFi, Multimedia und Navigation

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