cartraveller
CarAudio.com Newbie
Hi,
I'm new on this forum. I'm from The Netherlands and have a Toyota Landcruiser 150 from 2018. The original speakers are removed and replaced by an installer. My new gear is:
- Exact HX20 tweeters for the highs
- Gladen Zero 130 for the mids
- German Meastro EV6908 woofers for the lows
- A Mosconi 130.4 DSP amplifier / processor is installed. Has 4 channels. 2 channels for the lows and two channels for the combined mid & highs.
When I measure the frequency curve of the German Meastro and the mid/highs separately (without EQ, filtering etc.), the result is very strange. See attached picture from REW.
I know that the original setup has a HUGE emphasis on bass (as you can see), so that doesn’t surprise me. But the German Meastro should be more or less flat untill 1 or 2 Khz at a minimum I guess (Can’t find in in the specs). The Gladen Zero 130 mid unit has a flat curve until 125 Hz according to the specs. The measurement doesn’t even come close! I have a huge dip in the mid area!
First I thought the mids were not connected (the frequency curve of the mid/high combined is almost the same as the natural slope of the tweeters alone ), but it seems they are connected. What could be reason for this strange behaviour? I can think of two options:
1) The original crossover filters have not been removed by the installer (although, the installers states that they always remove the crossover filters) à is there an easy way to check this? (I’m not comfortable to remove side panels in my car etc.)
2) The head unit is already filtering the signal à Is that ‘normal’ form head units? Apparently, it is also boosting the bass, so some kind of DPS processing must be going on inside I guess
3) ..... any other explanation that I didn't think off?
Hope you can help me out on this.
I'm new on this forum. I'm from The Netherlands and have a Toyota Landcruiser 150 from 2018. The original speakers are removed and replaced by an installer. My new gear is:
- Exact HX20 tweeters for the highs
- Gladen Zero 130 for the mids
- German Meastro EV6908 woofers for the lows
- A Mosconi 130.4 DSP amplifier / processor is installed. Has 4 channels. 2 channels for the lows and two channels for the combined mid & highs.
When I measure the frequency curve of the German Meastro and the mid/highs separately (without EQ, filtering etc.), the result is very strange. See attached picture from REW.
I know that the original setup has a HUGE emphasis on bass (as you can see), so that doesn’t surprise me. But the German Meastro should be more or less flat untill 1 or 2 Khz at a minimum I guess (Can’t find in in the specs). The Gladen Zero 130 mid unit has a flat curve until 125 Hz according to the specs. The measurement doesn’t even come close! I have a huge dip in the mid area!
First I thought the mids were not connected (the frequency curve of the mid/high combined is almost the same as the natural slope of the tweeters alone ), but it seems they are connected. What could be reason for this strange behaviour? I can think of two options:
1) The original crossover filters have not been removed by the installer (although, the installers states that they always remove the crossover filters) à is there an easy way to check this? (I’m not comfortable to remove side panels in my car etc.)
2) The head unit is already filtering the signal à Is that ‘normal’ form head units? Apparently, it is also boosting the bass, so some kind of DPS processing must be going on inside I guess
3) ..... any other explanation that I didn't think off?
Hope you can help me out on this.