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CROSSOVER ADJUSTMENTS
In most car audio installations, there is a tendency for a “midbass boom.” Because of their interior
dimensions, most cars will resonate or ring at these midbass frequencies. If we design the system so
there is less musical information in this region, the final response is very smooth and natural sounding.
The Reference705s incorporates a continuously variable staggered asymmetrical electronic crossover.
The high and low pass portions of the crossover can be adjusted independently of one another.
Follow the procedure below to adjust the crossover.
Staggered Asymmetrical
Crossover
24 dB/octave low pass,
12 dB/octave high pass
12 dB/octave band pass
NOTE: You may find it necessary to readjust the crossover after listening to the system. The correct
settings are a combination of the capabilities of the equipment and your listening preferences.
INSTALLATION STEP 8
1.With the crossover activated, set the frequency adjustments to the 12 o’clock position.
2.While listening to music, adjust the high pass frequency control. Select a frequency high
enough to prevent damage to the speakers, yet low enough that you are able to retain
midbass in the front speakers.
3.Adjust the low pass frequency control in the same way as the high pass. This time, listen
to the bass. You should find a setting that will give you a solid sound with minimum “boom”
from resonating frequencies.
24 dB/Oct. Low Pass
12 dB/Oct. High Pass
12 dB/Oct. Band Pass
AIRBASS™ ACCESSORY OPTION
Soundstream's new AIRBASS™ feature can be added to the REFERENCE705s amplifier. This
feature allows wireless RF remote control level adjustment of the REFERENCE705s' subwoofer
NOTE: The AIRBASS™ accessory operates the subwoofer channel only.
AIRBASS™ does not control the level of channels 1,2,3 & 4.
Installing AIRBASS™ involves removing the bottom plate of the amplifier, adding the AIRBASS™
circuit board, and flipping a switch. The switch is labeled on the amplifier's main circuit board. DO
NOT set the AIRBASS™ switch to the "IN" position unless the AIRBASS™ module has been added.
DO NOT move the AIRBASS™ switch while the amplifier is "ON". Doing so may damage your
speakers. (Please refer to the AIRBASS™ owner's / installation manual for more details.)