Hay folks with Alpine 9813 or 9815, come here plz (and for chrissakes,THIS TIME HELP)

Slaugh
10+ year member

CarAudio.com Moron
(hi ill try to ask this again, the other times i only got stupendous retarded replies)

so i have this Alpine 9815 hu and 2 alpine V12 amps (MRV-F407 for the comps doing the bi amplification directly at the hu and a MRV-1000 amp for the subwoofar: Pioneer Premier 12" model TS-W126C)

well my question regards gains and bass... so i started messing with the gains since i built this system and still i have doubts and complaints about it... let me say what it is and how it affects me... i still can't get it to work properly

well the gains on the 4 channel sub for the comps isnt a very annoying problem, but i have to crank it up a lot (it's now nearly on nominal and was nearly on 0,5v before and i still didnt sound very loud) and it does not get loud... well i can easily go past 25 - which is actually 75% of my hu volume - and it does not get very loud as my friends pioneer (even thou they leave their gains at the minimum 4v)... but the gains for the sub is the worst.... let me say i leave the gain on the sub amp at nearly 0,5v.... and i still i dont have enough bass //content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif...

well the bass only comes strongly when i use the MX which totally blows my comps away (it makes them sound awful compared to when it's apcent)... well what should i do... the sub out must be near the +15 (which represents 0db actually) for me to even hear the sub... if i for example lower the sub out to +10 i can barely hear it at all even at louder volumes (well unless MX is on)... even if i put my hand on the sub cone i can feel it barely moves (again, without MX)...

my EQ is using +5db for the bass and +3db for the mid/bass (it's a lot high being +6db the maximum allowed on the hu)... doing the sub cuts from the internal hu xover (at -12db/octave starting from 63hz)

i've tried increasing the sub gains even more but it begins to sound weird and i become afraid of clipping...

so im asking ONCE again (let's see if this time you guys answer my **** question instead of retardly saying "GAINS IS LIKE UNDERWEAR, EACH PERSON HAS A DIFFERENT ONE FOR THEIR NEEDS" over and over again)... if no one gives me a good reply ill just shut up for good, this qustion is annoying me... i can't get my system to satisfy my needs because of this gain mayhem... so instead of *****ing why don't you just offer help ok?

 
i forgot to say when i play a test tone like 10hz, 15hz, 20hz or whatever, even without MX the sub moves a ****IN LOT even below volume 20 (note that at the same volume without messing with any settings and playing a music with bass like rap i can barely feel it //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif )... its even scary it looks like the sub is gonna jump out of the box lol... but when i play music there's barely bass //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 
rite //content.invisioncic.com/y282845/emoticons/mad.gif.c18f003ab0ef8a0d9c27ca78d77a6392.gif

f.a.g.s //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

 
There are some fundamental concepts at play here. I am not trying to insult you, but really go to your local stereo shop and have them set everything for you. Ask if you can watch and learn from the process and then go from there.

Some of this stuff is not as easy as "read it on the internet, so I know what I am doing"

I hope you take this seriously, as I detect a tone of a past flame war from previous comments.

I hope this helps.

 
ok i always thought my hu had faulty pre-outs, do you guys agree this is possible?

all i was about to ask (which i forgot) is where do you guys leave your gains at... and what eq and cross config do you guys use.. and that's all for real

 
ok i always thought my hu had faulty pre-outs, do you guys agree this is possible?
all i was about to ask (which i forgot) is where do you guys leave your gains at... and what eq and cross config do you guys use.. and that's all for real
There were plenty of complaints on the forums regarding the "weak sub pre outs" on that year's alpines(and even the year before). Your post hardly surprises me.

I remember a guy who had a 9815, then bought a 9835, and the FIRST thing he did was test the pre outs to see if they were stronger(both rated at 4V, but he found the 9835 to have stronger preouts).

 
Yer not helping him with this nonsense about weak preouts.. preouts have nothing to do with SHIET except where you have to have your gains set.

His original post doesnt even really make sense..

So many things could be wrong with his setup.. for all we kno he has his subs wired backwards in a box that is wayy too large.

read the sticky and set yer gains with a Digital Multi Meter....

Also what frequencies are you boosting with yer eq?? its definately going to sound like shit if yer boosting yer "bass" frequencies to +5... flatten it all out and then set yer gains.

Also never compare your setup to someone elses.. his could be louder for a million different reasons not just cause of preout voltage..

 
Yer not helping him with this nonsense about weak preouts.. preouts have nothing to do with SHIET except where you have to have your gains set.
His original post doesnt even really make sense..

So many things could be wrong with his setup.. for all we kno he has his subs wired backwards in a box that is wayy too large.

read the sticky and set yer gains with a Digital Multi Meter....

Also what frequencies are you boosting with yer eq?? its definately going to sound like shit if yer boosting yer "bass" frequencies to +5... flatten it all out and then set yer gains.

Also never compare your setup to someone elses.. his could be louder for a million different reasons not just cause of preout voltage..
//content.invisioncic.com/y282845/emoticons/word.gif.64b12e39f936af3b4fff38a1c0bd0244.gif

 
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Slaugh

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