Does anyone know if the hu crossover is disabled when you use the preouts for amplification.
HU in Question is Alpine model CDA 9877 and 9823
Thanks
Mike THINK
Replies (8)
swez on 02/2/2008 19:42:06
Hey Mike,
If we use HU crossover presets, they handle internal and RCA signal crossover slopes as well. If we disable the HU crossover features, the amps used will need filters to select the desire pass or cut frequency bands.
Most Alpine HU X-over's cover both internal amps and RCA outs as well. Many prefer to use the amp crossovers when possible and use full range signals from the the HU RCA's.
However, if we are attempting to use Active Band Pass filter networks, we use both the HU and amp filters to accomplish this.
Say more bro?
Swez
cplkittle on 02/2/2008 19:50:09
Swez is dead on.
I use my crossover settings on my 9835 to controll all of my crossover frequencies except SS filters.
bamasaint on 02/2/2008 20:06:52
There are so many crossover possibilities with this head unit that Im having trouble coordinating the srttings between the HU and the amp.
Where to start?
cplkittle on 02/2/2008 20:16:58
For my mids and highs the component crossover takes care of seperating the tweet from midbass frequencies. On the amp, I set the HPF at 60Hz as a safety net. I normally have the radio crossover for the mids at 70 or 80Hz.
The sub amps only have a sub sonic set on them. I use the radio to set the LPF.
In short, set the amp filters as 'safety nets' and use the radio to tune according to the music.
bamasaint on 02/2/2008 21:46:42
Thanks Kittle,Swez.
Will adjust more tomorrow...my neighbors are not night owls but when I start I cant stop (obsesive compulsive freak).
Mike
cplkittle on 02/3/2008 12:23:48
I know that feeling! I always tell my wife "5 more minutes" and it takes 2 hours or more. If you don't finish and have to quit halfway through it, you lay in bed thinking about it all night and can't sleep.
swez on 02/3/2008 12:59:54
Ahhh, yes, remember those days well and now that I'm older, would put down the toys/projects sooner, come in the house and spent more time handing out compliments and hangin out with the wife and kiddos. (Am not kidding)
Funny, it's so easy to get all locked up in a silly little project and drive our mates into nagging and/or the silent treatment for days. (Admittedly, that's what I thought I wanted at times... "the silence was deafening" and sometimes golden.)
Looking ahead, the next meaningful relationship will get more of my time, attention and effort to connect and remain that way. Why? "If sweetie is not happy... Ain't nobody happy in the house"!
Yes, there are limits to be set, but at the same time... if we keep the home fires well-stoked, things go much better in all. Sadly, I learned that one a tad to late on the last go round and won't make the same mistake again. (Pay attention fellas... this is important)
If we want to act like single men, (Do our own thing at all times) then ignore the comments and you'll be single in just a matter of time. Single, broke and paying all her/kids bills too. We don't want or need that mess and best to avoid it at all costs.
The aging guru,
Swez
bamasaint on 02/3/2008 20:26:58
My wife knows me pretty well. She knows when I start a project of any kind that I develope tunnel vision and unless someone is losing
copious amounts of some kind of bodily fluid she will try not to bother me. She has always just let me do my thing as long as Im doing it @ the house.(HA HA)
Mike HAPPY
HU in Question is Alpine model CDA 9877 and 9823
Thanks
Mike THINK
Replies (8)
swez on 02/2/2008 19:42:06
Hey Mike,
If we use HU crossover presets, they handle internal and RCA signal crossover slopes as well. If we disable the HU crossover features, the amps used will need filters to select the desire pass or cut frequency bands.
Most Alpine HU X-over's cover both internal amps and RCA outs as well. Many prefer to use the amp crossovers when possible and use full range signals from the the HU RCA's.
However, if we are attempting to use Active Band Pass filter networks, we use both the HU and amp filters to accomplish this.
Say more bro?
Swez
cplkittle on 02/2/2008 19:50:09
Swez is dead on.
I use my crossover settings on my 9835 to controll all of my crossover frequencies except SS filters.
bamasaint on 02/2/2008 20:06:52
There are so many crossover possibilities with this head unit that Im having trouble coordinating the srttings between the HU and the amp.
Where to start?
cplkittle on 02/2/2008 20:16:58
For my mids and highs the component crossover takes care of seperating the tweet from midbass frequencies. On the amp, I set the HPF at 60Hz as a safety net. I normally have the radio crossover for the mids at 70 or 80Hz.
The sub amps only have a sub sonic set on them. I use the radio to set the LPF.
In short, set the amp filters as 'safety nets' and use the radio to tune according to the music.
bamasaint on 02/2/2008 21:46:42
Thanks Kittle,Swez.
Will adjust more tomorrow...my neighbors are not night owls but when I start I cant stop (obsesive compulsive freak).
Mike
cplkittle on 02/3/2008 12:23:48
I know that feeling! I always tell my wife "5 more minutes" and it takes 2 hours or more. If you don't finish and have to quit halfway through it, you lay in bed thinking about it all night and can't sleep.
swez on 02/3/2008 12:59:54
Ahhh, yes, remember those days well and now that I'm older, would put down the toys/projects sooner, come in the house and spent more time handing out compliments and hangin out with the wife and kiddos. (Am not kidding)
Funny, it's so easy to get all locked up in a silly little project and drive our mates into nagging and/or the silent treatment for days. (Admittedly, that's what I thought I wanted at times... "the silence was deafening" and sometimes golden.)
Looking ahead, the next meaningful relationship will get more of my time, attention and effort to connect and remain that way. Why? "If sweetie is not happy... Ain't nobody happy in the house"!
Yes, there are limits to be set, but at the same time... if we keep the home fires well-stoked, things go much better in all. Sadly, I learned that one a tad to late on the last go round and won't make the same mistake again. (Pay attention fellas... this is important)
If we want to act like single men, (Do our own thing at all times) then ignore the comments and you'll be single in just a matter of time. Single, broke and paying all her/kids bills too. We don't want or need that mess and best to avoid it at all costs.
The aging guru,
Swez
bamasaint on 02/3/2008 20:26:58
My wife knows me pretty well. She knows when I start a project of any kind that I develope tunnel vision and unless someone is losing
copious amounts of some kind of bodily fluid she will try not to bother me. She has always just let me do my thing as long as Im doing it @ the house.(HA HA)
Mike HAPPY
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