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-   -   X-over on Mono amp (https://www.caraudioforumz.com/general-discussion-10/x-over-mono-amp-187866/)

Jazz 11-22-2009 05:45 PM
X-over on Mono amp
 
Hi

I completed my install yesterday and i have a question. On my momo amp, i set the x-over to the highest setting because i want to use the HU x-over and my amp does not have a "flat" option.

When i adjust the x-over on my HU, the higher i put the frequency, the deeper and louder the bass becomes. For example i had initially set it to 30Hz and i found it was ok but things were not really shaking. After playing around with it, i set it to 120 Hz and BOOM, more bass, louder bass, deeper bass. Does this sound right? I always thought that it was the opposite for some reason...seeing that i am new to all this i was probably wrong.

J

Jazz 11-23-2009 11:33 AM
I figured this would have been a very easy answer for those with experience. Was my question unclear maybe?

Thanks
J

420guy 11-23-2009 07:59 PM
What you are adjusting is the low pass filter. Set at 30hz it is only letting 30hz and lower get to the subs. This should be set around 80-100hz ideally.
Nick

Jazz 11-23-2009 08:08 PM
Originally Posted by 420guy (Post 525220)
What you are adjusting is the low pass filter. Set at 30hz it is only letting 30hz and lower get to the subs. This should be set around 80-100hz ideally.
Nick
thanks for the reply. after tinkering with it for a bit i figured that was the case. I do have another question though, the specs for my sub say 30Hz-400Hz, so if a frequency lower than 30 is passed, will it damage the subwoffer or will it just not be reproduced?

Thanks

Jazz 11-23-2009 08:43 PM
Originally Posted by hanzuozuo1984 (Post 525231)
Car DVD GPS Player can play MP4/ DivX/ XviD/ DVD/ CD /VCD / CD/ CD-R/ CD-RW / MP3 with GPS TV FM RDS DVB-T Bluetooth SD Card Amplifier can show the best route to your destination can help you save a lot of time ,especail when you in strange city

Chrysler 300C Car DVD Player with GPS Navigation System 3D Screen Steering wheel control

Product Description:

Touch screen 5.0 Inch 2-DIN TFT LCD Monitor with DVD Player/TV/4*45 amplifier/AM/FM/GPS Built-in/CDC/USB/SD Card
3D menu Operation
ipod ready
Steering wheel control
DVD/VCD/MP3/MP4/DIVX/CD/CD-R/CD-RW/DVD-RW Formats
Dimmer function for night driving
DVD/VCD/CD changer control interface
Multi-channel auto EQ
Auto reverse function when parking
Car clock function
AUX input
Bluetooth build-in
Warranty：One year
huh? :dunno:

Jazz 11-25-2009 08:10 PM
Originally Posted by Jazz (Post 525222)
thanks for the reply. after tinkering with it for a bit i figured that was the case. I do have another question though, the specs for my sub say 30Hz-400Hz, so if a frequency lower than 30 is passed, will it damage the subwoffer or will it just not be reproduced?

Thanks
I think that i figured this out. After reading the manual on my momo amp, it states in the specifications that there is a "fixed" subsonic filter of 15Hz.

J


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