2
5.1 SELECTING THE OPERATION MODE
The RODEK amplifiers feature an active crossover section with
full versatility and thus, offer different amplification modes,
which can be set by the operation mode slide switch(es). The
operation mode switch enables you to configure each stereo
channel pair to work in either fullrange, highpass or even band-
pass mode. Therefore - before you get started with the settings
of crossover frequencies and input gain adjustments - you
must select the appropriate operation mode for each channel
pair, depending on the speaker system that is connected and
driven by the amplifier. This will make sure that every speaker
system is only working in its proper frequency operation ran-
ge, for which the speaker was designed. For example select
HIGHPASS, if the speaker is a component- or coaxial type, or
BANDPASS in case of a kickbass or subwoofer system - and
finally FULL(range) if the passband frequency of the stereo
channel is already controlled by a head-unit with an integrated
DSP based active crossover.
5.3.1 HIGHPASS FOR COMPONENT AND
COAXIAL SPEAKERS
Before you start your adjustments, all tone controls (i.e. Bass,
Treble), fader/balance and the loudness function featured on
the head unit, must be set to their respective neutral or center
position.
Please take a look at the chart below, stating the recommended
high-pass cross-over frequency settings for coaxial- and compo-
nent speaker systems - and adjust the highpass control of each
channel pair that drives satellites speaker systems accordingly.
The most important factor for the individual adjustment of the
highpass cross-over frequency is the reproduction of mid-bass
frequencies and the resulting power-handling of the speaker
system. This setting is always a compromise. Try to find a high-
pass crossover frequency point, that will suit your personal
listening preferences and - at the same time - also considers the
physical (cone excursion) capabilities of your speakers best.
Satellite speaker system, front door mounted,
recommended highpass frequency
10 cm Coaxial- or Component System
90 - 120 Hz
13 cm Coaxial- or Component System
80 - 100 Hz
16 cm Coaxial- or Component System
60 - 90 Hz
Satellite speaker system, rear mounted, recommended
highpass frequency
10 cm Coaxial- or Component System
100 - 150 Hz
13 cm Coaxial- or Component System
120 - 150 Hz
16 cm Coaxial- or Component System
130 - 150 Hz
. CROSSOVER SETTINGS
Ro 1-2-4-CH ME def.indd 27
01.03.2006 10:55:38 Uhr
