Manual Emphaser ea 2500 d (page 13 of 32) (English, German, French)

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MAIN POWER CABLE ROUTING

Run the positive main power cable („+12 V“) directly from the positive terminal of the car battery to

the amplifier. For protection of your car audio system against electrical fire hazards, resulting from a

short-circuit of the main power cable to chassis ground an ANL fuse holder must be inserted within the

first 30cm of the positive main power cable. The applicable fuse value must be matched to the limita-

tions of your main power cable AND the current draw of the amplifier – therefore choose an appro-

priate fuse value.

Attach the ground cable to the amplifier. Try to keep the ground cable („-12V“) as short as possible,

i.e. to find a chassis contact very close to the amplifier. The ground power cable must have the same

cross-section as the positive power cable. The contact surface point on the car chassis must be solid

and clean, i.e. free from rust or paint!

Tighten both power input terminals of the amplifier, and double check for perfect fit.

7. ADJUSTMENT OF THE CONTROL FUNCTIONS

SELECTING THE OPERATION MODE FOR SATELLITE SPEAKERS

Before you power up your amplifier, you must select and set an appropriate operation mode first. The

OPERATION MODE is set, depending on the speaker system connected to the amplifier.

You must configure each stereo channel pair to work in either in fullrange, highpass, lowpass or even

bandpass mode. Select the appropriate operation mode for each channel pair, for example select

HIGHPASS, if the speaker system is a component-, coaxial- or triaxial- type, or BANDPASS in case of

a kickbass system, or LOWPASS if the channel pair will drive a subwoofer system respectively. If you

own a head-unit, that features an integrated DSP controlled active crossover, it is recommended to use

the DSP based crossovers – in this case you need to set the operation mode slide switch(es) to

FULL(range)!

In all other cases you MUST set the OPERATION MODE of each channel pair to the corresponding

HP,LP or BP setting, that corresponds to the function of the connected speaker pair! Otherwise, your

speaker system(s) might be damaged!

SELECTING A CROSSOVER FREQUENCY POINT FOR SATELLITE SPEAKERS

For satellite speakers, you must select the position “HP” on the OPERATION MODE switch. The “HP”

operation mode will take away unnecessary mechanical and electrical ‘strain’ from the connected coa-

xial or component speaker system. Depending on the actual cone surface, voice-coil diameter and the

rated power handling of the installed ‘satellite’ speakers, it is recommended to set the high-pass cross-

over frequency point between 50 and 150Hz, using the „HI PASS“ frequency control.

Note, that the appropriate setting should always be determined by ear!

Front Door Satellite Speaker System („HP” enabled, 1/2-CH) HP Cross-Over Frequency

13 cm 2-way Component System 80 - 110Hz

16 cm 2- or 3-way Component System 50 - 80Hz

EM Digital 4/5-CH Manual 2004 26.03.2004 11:39 Uhr Seite 13

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Emphaser ea 2500 d Manual

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