TEQ4 Help!!! Output Question
TEQ4 Help!!! Output Question
So I got a new TEQ4 EQ and dont quite understand how to set the output of the gain. The manual says that it is capable of up to 8 volts. The adjustment on the top says "DB's" 0-30bd's How does this relate to volts? My input is gonna be 2 volts max, if that. Since its only capable of 8 volts do I just turn it up all the way? I just dont understand how "db's" equate to volts. I want 8 volts since I am running the xenon amps.
you need to tune the system per the ac output voltage...typically I do this with a scope and a multi meter....you tune it by ear...or you tune it just below the clip point.
for now, set the eq flat and turn the gain all the way down on the amp...use the gain on the eq and turn it up till you hear distortion and then take it back down a ways till you don't hear distortion. with a good line amp I rarely touch the gain on the amp...just as you generally would with the gain on the amp.
does the eq have both input and output gain control....if so you need to set the gain between the hu and the eq first....then continue down the line. I don't have any xenon amps here or I could tell you what ac voltage you should be good for.....
don't just turn it all the way up...all signal amps will have a clip point just as a hu does....
an eq is not used to produce a greater amplitude at any frequency...it is used to achieve tonal balance. You should have everything set flat to set the gain....then use the eq to take out any rise or drop at any point you desire...but not to make the system louder....
db is a measure of amplitude at any given frequency....increasing the db pitch at any given frequency will give you more power on the frequency you dial up...or back which equates to more power in that narrow window...or less....but you shouldn't have to take the it up or down far enough to effect the clipping point on the amp....if it does you probably need to adjust your x over points or utilize the variable q to cut or boost the width of the frequency around which you are having roll off or abnormal resonance.....
Does this help....I am sure I am not doing an adequate job of describing it....I tune my car per ac voltage if I can....if not I go by ear....
tune one channel one side at a time....so each speaker and start with the passenger side front as that will give you a reference point for balancing the rest of the system and that is the driver that would in theory be the loudest of the driver per the distance from the ear unless you have alignment ability in the system somewhere
for now, set the eq flat and turn the gain all the way down on the amp...use the gain on the eq and turn it up till you hear distortion and then take it back down a ways till you don't hear distortion. with a good line amp I rarely touch the gain on the amp...just as you generally would with the gain on the amp.
does the eq have both input and output gain control....if so you need to set the gain between the hu and the eq first....then continue down the line. I don't have any xenon amps here or I could tell you what ac voltage you should be good for.....
don't just turn it all the way up...all signal amps will have a clip point just as a hu does....
an eq is not used to produce a greater amplitude at any frequency...it is used to achieve tonal balance. You should have everything set flat to set the gain....then use the eq to take out any rise or drop at any point you desire...but not to make the system louder....
db is a measure of amplitude at any given frequency....increasing the db pitch at any given frequency will give you more power on the frequency you dial up...or back which equates to more power in that narrow window...or less....but you shouldn't have to take the it up or down far enough to effect the clipping point on the amp....if it does you probably need to adjust your x over points or utilize the variable q to cut or boost the width of the frequency around which you are having roll off or abnormal resonance.....
Does this help....I am sure I am not doing an adequate job of describing it....I tune my car per ac voltage if I can....if not I go by ear....
tune one channel one side at a time....so each speaker and start with the passenger side front as that will give you a reference point for balancing the rest of the system and that is the driver that would in theory be the loudest of the driver per the distance from the ear unless you have alignment ability in the system somewhere
I scoped my alpine head unit and it seemed to clip around 30-32 on the volume, thats out of 35 max, so I was planning on leaving the HU at 28 and using the volume on the EQ to adjust. I am not sure I am using my scope right tho, this is the first time using one, and its a small DIY scope that seemed to get decent reviews.
I was planning on leaving the gain on the amps all the way down.
I just dont get how the gain adjustment on the EQ relates to voltage for the pre outs. It says 8 max so I was thinking that at the 30 db it would output 8 volts max
The eq doesnt have adjustablity on the input only output voltage. I am familiar with the "Q" settings.
I was planning on leaving the gain on the amps all the way down.
I just dont get how the gain adjustment on the EQ relates to voltage for the pre outs. It says 8 max so I was thinking that at the 30 db it would output 8 volts max
The eq doesnt have adjustablity on the input only output voltage. I am familiar with the "Q" settings.
if it doesn't have input gain control you would just use the gain on the eq output and tune it as you would tuning the amplifiers gain....as long as your amps....or your drivers arn't clipping you should be okay. Check the clip points on the amps before you even install them so you will be checking the ac voltage on the amps speaker output just as you would without the eq..as you adjust the gain on the eq...you just take it to the ac voltage you know is kosher for the amp
if you find the clip point with the scope use your mm to measure that ac voltage on the speaker output....that is where you want to be....as long as your signal isn't clipping at any point in the signal path you should be able to get it pretty easy....if you have a scope and a mm you should have all you need to do this.....
if you find the clip point with the scope use your mm to measure that ac voltage on the speaker output....that is where you want to be....as long as your signal isn't clipping at any point in the signal path you should be able to get it pretty easy....if you have a scope and a mm you should have all you need to do this.....
that is pretty cool....unless your scope in calibrated you will want to use the dmm for your v measurements as the scope will be off...not on the clip point...you are just watching the wave on the scope. when you measured the clip point on the hu did you take the voltage measurement? Use a 60 hz sine wave when you do so....if you do that for each peice in line you will get a really good idea of what you should be looking for down the line in the car.....
the relation is the ac voltage....you don't measure to 8 volts....you want all the signal that you can get...without a hard clip....I need to show you...and I will....give me a couple days and I'll post up some photos and info for you
There are some good things to read in the car audio area tutorials....these may assist too.....
There are some good things to read in the car audio area tutorials....these may assist too.....
Pics would help out alot. Like I said I dont know much about scopes, but I thought that the little one seemed to do all i would probably need it to. It is small. I was told I need a 10:1 probe to measure some stuff so i still need to get one of those. I think I might need one to do this correctly with the amps output. For the price I think it was a good buy for me. I did buy the assembled one for $49 plus shipping, it took like 2 weeks to ship out at the time as they were flooded with orders and sold out at the time, but it arrived just fine.
here is the link http://www.seeedstudio.com/depot/digita ... p-166.html