Specifications

7. ADJUSTMENT OF THE CONTROL FUNCTIONS

7.5 SUBSONIC CROSSOVER FREQUENCY ADJUSTMENT FOR THE SUB-

WOOFER

Ideally, the subsonic highpass frequency should be set according to the size and function principle of

the subwoofer system, installed in this system configuration. The higher the subsonic crossover fre-

quency is set, the higher the mechanical power handling of the subwoofer system will be. The trade-

off is reduced low end extension, since nothing comes free! So turn up the volume of your head unit

and set the subsonic (highpass) frequency to fit your own taste and requirements, in a way you reach

a good compromise of power handling and convincing low end reproduction. There are no specific

recommendations…

7.6 ADJUSTMENT OF THE INPUT GAIN CONTROLS

To reach a maximum in dynamic response from each individual head-unit/amplifier/speaker combi-

nation, it is important to set the respective input sensitivity controls ("GAIN") of all channel pairs cor-

rectly.

Before you start, you MUST set all tone controls (Bass, Mid, Treble, Loudness etc.) and the fader

on the head unit to their neutral or center positions.

Now turn all three input gain controls (CH1/2, CH3/4 and CH5/6) on the amplifier anti-clockwise to

their minimum positions. The REMOTE LOW PASS LEVEL BOOST of the remote unit shall be set to its

minimum position too.

SUBWOOFER CHANNELS

Set the volume control of your head-unit to approximately 3/4 of full volume, while playing a dyna-

mic track of music. Slowly increase the input gain control of channels 5/6-CH by turning the control

knob clockwise, until you can just about hear distorted sounds from your subwoofer. Reduce the main

volume level on your head-unit to a medium listening level.

CHANNELS 1/2-CH

Slowly increase the input gain control of channels1/2-CH by turning the knob clockwise until you

reach a good tonal balance, with a slight emphasis of the bass range. Aim at a full bodied bass

response.

REAR CHANNELS / FRONT KICKBASS CHANNELS

Now slowly turn up the input gain control of the channel pair 3/4-CH, until you have either reached

a good balance between the front and rear satellites, or the front satellites and the kickbass woofer

units. In case of a front door installed kickbass system, a slight emphasis on the kickbass range is

recommended, as this will be compensated later by normal driving noises.

FINE TUNING OF ALL CROSSOVER FREQUNCY POINT SETTINGS

Finally you can attempt to fine-tune the HP, BP and LP cross-over frequencies on your amplifier, to

reach the maximum tonal balance and channel integration of all loudspeakers connected to your

EA4100-500.

EA 6-CH Manual 12.03.2002 13:32 Uhr Seite 17