HU specs

[dannyz122001 10+ year member]

what are the necessary specs to consider when considering HU's? meaning, whats a good preamp voltage and number of outputs, etc. fairly new to CA and not sure what to look for. thanks

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[2002XLT 5,000+ posts]

what are you trying to do? As far as goals for your system. How many amps do you plan on running, are you going active? Whats your budget?

 

[dannyz122001 10+ year member]

well, i was thinking about getting the clarion MAX685BT. however, someone said last week that it only has 2V preouts??? not sure what it means. i will be running 2 amps, a ZX1500.1 and a ZX650.4. link for HU:

http://www.crutchfield.com/App/Product/Item/Main.aspx?g=168550&i=020M685BT&c=3&tp=75&avf=N&tab=review

 

[2002XLT 5,000+ posts]

Nice deck, but i would personally rather go with the alpine w200/205/ or 505 if you can afford it.

Otherwise, since you have 2 amps, you will need 2 preouts. Generally speaking the higher the preout voltage is, the lower your gain has to be on your amps, and the better they can sound, but realistically it wont make a huge difference so its up to you if you want to pay the extra money. If you are going for true SQ, i would suggest it though.

What kindof features are you looking for? time adjustment, eq, etc.

 

[dannyz122001 10+ year member]

i looked at the alpine's but they just didnt seem to do it for me asthetically. i've got a clarion VRX745VD flip out in my truck now; i've had it for 4 or 5 years and its still running great.

what voltage is usually the most desired?

as far as what i'll be using, i just want someone that will look great, have all the ipod touch controls, video capabilities, and NAV. other than that, just the basic functions.

 

[jco1385 5,000+ posts]

so you are looking for a screen? usually the higher the better as far as preout voltage.

 

[dannyz122001 10+ year member]

what is the highest voltage for preouts?

 

[2002XLT 5,000+ posts]

what is the highest voltage for preouts?

im sure they can get higher, but many of the top eclipses have 8volt.

i would get atleast 4 volt outs.

 

[jco1385 5,000+ posts]

what is the highest voltage for preouts?

depends on the HU. you can also buy a line driver to up the voltage. there is a risk of noise introduction if you go that route though

 

[dannyz122001 10+ year member]

so basically, the higher preout voltage, the better SQ and the less you have to set the gains on the amps?

will there be a large difference between 2V and say 4+ V?

 

[2002XLT 5,000+ posts]

so basically, the higher preout voltage, the better SQ and the less you have to set the gains on the amps?
will there be a large difference between 2V and say 4+ V?

large difference? depends on your ears and how much road noise your car has. lol

But if you are going for a sq system, i think it would be best to get atleast the 4 volt, it will be far easier later on.

 

[jco1385 5,000+ posts]

so basically, the higher preout voltage, the better SQ and the less you have to set the gains on the amps?
will there be a large difference between 2V and say 4+ V?

sq depends on the unit also, not the voltage. but it seems right with more voltage = better sq...???

2v and 4v you'll see a difference in where your gains are

 

[dannyz122001 10+ year member]

will both scenarios have the same effect:

1) 2V preouts with gains set relatively high, compared to the 4V preouts

2) 4V preouts with gains set relatively low, compared to the 2V preouts

any difference as far as SQ goes?

or should i just say screw this particular model and find one with 4V preouts and call it a day?

 

[2002XLT 5,000+ posts]

will both scenarios have the same effect:
1) 2V preouts with gains set relatively high, compared to the 4V preouts

2) 4V preouts with gains set relatively low, compared to the 2V preouts

any difference as far as SQ goes?

or should i just say screw this particular model and find one with 4V preouts and call it a day?

The amp output will probably be the same (should be the same anyway) but yes depending on how good your ears are, you may be able to hear a difference in sq, i doubt it will be a huge difference, but its a difference nonetheless.

I would personally try and find something with 4 volt outs, it really would make it easier on you in the long run. Better to do it right the first time. Whats your budget on your headunit?

 

[jco1385 5,000+ posts]

if you don't mind the gain being slightly higher, i say keep what you have, if you already have it.

what is the final goal of your system?