SQ Head Units

[Oak244 10+ year member]

The Eclipse 8053 is an older model but is considered one of the best sounding decks ever! I love the sound, and all the features it has as well, with the EQ, DSP, Crossovers, Time Alignment, ect. Its a great sounding deck, with great tweaking features!

 

[FoxPro5 5,000+ posts]

The Eclipse 8053 is an older model but is considered one of the best sounding decks ever! I love the sound, and all the features it has as well, with the EQ, DSP, Crossovers, Time Alignment, ect. Its a great sounding deck, with great tweaking features!

You are correct. Preout voltage matters and that's why it exists. It's not ALL marketing, but I do agree with Squak to a point. What is important is the quality of the preamp chips in the HU. Eclipse 8v put out 8v (or more //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif) at full volume. Denon 2v put out 2v at full volume. So if you don't run them at max unclipped volume many would say that it doesn't matter. I disagree because would you rather have 4v or 1v at half volume?? If two decks have equal sq and features, I'll take the higher preout voltage deck. Or wait, it doesn't matter that's right //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

 

[pwnt by pat 10+ year member]

As long as you don't have noise in either system, what difference would it make to have more voltage? (besides where your gain is set)

edit for clarity, this was a sarcastic remark to fox.

 

[Oak244 10+ year member]

I believe what set the 8053 apart from other Eclipse decks is it has 16Volt outputs.

 

[project f-150 10+ year member]

It honestly wouldnt matter about what voltage there is is in a sytem with no noise as long as the higher gain setting on the amp doesnt induce noice

(which i dont know of one that does). but on a system that has a slight noise issue thehigher voltage would help becaue you reduce yout gain on the amp (which in turn lowers noise amplification).

But one more thing higher pre-out voltage does not and i repeat DOES NOT make your amp not have to work as hard to reach the ame voltage!! id10t

 

[Oak244 10+ year member]

Higher Voltages would allow you to run your gains at higher setting without clipping. If one way to set your gains is to match the voltage comming into the amp, with the voltage comming out, then isn't it safe to say a amp with 2 volts will allow for a lower gain increase before clipping then would that of the same amp with 8 volts? With this being said, the amp with a higher voltage in, should be able to get more out of the amp if you set your gains properly. I am not an expert here by any means, but a logical person lol!

 

[FoxPro5 5,000+ posts]

Higher Voltages would allow you to run your gains at higher setting without clipping. If one way to set your gains is to match the voltage comming into the amp, with the voltage comming out, then isn't it safe to say a amp with 2 volts will allow for a lower gain increase before clipping then would that of the same with 8 volts? With this being said, the amp with a higher voltage in, should be able to get more out of the amp if you set your gains properly. I am not an expert here by any means, but a logical person lol!

Yes and that's why it's called a sensitivity adjustment.

I also find it interesting how some of the higher end amps on the market have up to 16v sensitivity (ex. MBQ Q series) but yet some only have 2.5v (Arc SE series).

And one more for Eclipse....55ohm output impedence....errrr wait it's just marketing again //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif What's Alpine's again??? 55,000??? You can take the signal leads from and Alpine deck and ground them to bare steel and that thing will just keep pumping craptastic music all day (my opinion - live with it!!) If you were to do that with an Eclipse (8053 especially) kiss that baby bye bye.

If anyone has any numbers of the market share on decks, please post it up.....I bet Eclipse has less than 5%

 

[DBfan187 5,000+ posts]

the thing with the Eclipse decks isn't the high voltage, it's the low impedance//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif it's key!(also, you'll only start getting the the higher voltages within the last few clicks of the volume knob)

You'll only get these voltages @ full volume with 0dB tones - which music isn't

 

[project f-150 10+ year member]

Higher Voltages would allow you to run your gains at higher setting without clipping. If one way to set your gains is to match the voltage comming into the amp, with the voltage comming out, then isn't it safe to say a amp with 2 volts will allow for a lower gain increase before clipping then would that of the same amp with 8 volts? With this being said, the amp with a higher voltage in, should be able to get more out of the amp if you set your gains properly. I am not an expert here by any means, but a logical person lol!

If you have a higher voltage output on your amp it does not allow you to set the gains HIGHER without clipping. Your amp is only going to produce X amount of power max. Now if you have a higher voltage amp you set the gain lower so the amp knows the signal is stronger and will not jump to its max power all the time and overpower the rest of your music. And if you have a lower voltage headunit you set the gain higher so that the amp will still be able to reach that SAME power output.

 

[squeak9798 5,000+ posts]

Higher Voltages would allow you to run your gains at higher setting without clipping.

Not sure what you mean. With either a low voltage or high voltage deck you'll be able to obtain full power without clipping. Gain setting doesn't really matter much here, as long as it's set appropriately for the input voltage.

If one way to set your gains is to match the voltage comming into the amp, with the voltage comming out, then isn't it safe to say a amp with 2 volts will allow for a lower gain increase before clipping then would that of the same amp with 8 volts?

The gains would be set differently, yes. But that's rather irrelevant as long as the amplifier has no noise with the lower input voltage. If there's no noise, you won't notice any difference in sound or power output.

With this being said, the amp with a higher voltage in, should be able to get more out of the amp if you set your gains properly.

You can not get any more out of an amplifier than it is capable of cleanly producing, regardless of input voltage. If the amplifier can only produce 500w RMS before clipping..then that's it. No more. And most amplifiers are designed to produce full power output with as little as .2V input (yes, two tenths of a volt). Which means if your HU is capable of .2V of output, then you will be able to obtain full power output from the amplifier.

 

[squeak9798 5,000+ posts]

You are correct. Preout voltage matters and that's why it exists.

You're right. It matters for proper gain setting.

Or wait, it doesn't matter that's right //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

Not a whole lot, no.

 

[project f-150 10+ year member]

Thanks squeak. You took exactly what I said but made it easier to understand!! My post kinda rambled on.

 

[FoxPro5 5,000+ posts]

You're right. It matters for proper gain setting.


Not a whole lot, no.

But, you digress //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[squeak9798 5,000+ posts]

And one more for Eclipse....55ohm output impedence....errrr wait it's just marketing again //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

Who said that?

By the way...Denon decks are low output impedance aswell. In some cases pretty close to that Eclipse output impedance, and in other cases lower //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

What's Alpine's again??? 55,000???

Not as far as I'm aware. They're not even close to that. Most amplifiers have an input impedance of around 10kohm-22kohm. You may not like Alpine, but they're not stupid enough to produce a HU with a higher output impedance than most input impedances.

 

[FoxPro5 5,000+ posts]

Who said that?

I did in an effort to make fun //content.invisioncic.com/y282845/emoticons/tongue.gif.6130eb82179565f6db8d26d6001dcd24.gif Don't take it literally Squak //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

AFAIK Alpine does construct their HU's with the self-installer in mind, and therefore does have high output impedance for that very reason. I do not know the exact figures. I'm not trashing Alpine at all...I think competition is very healthy and they have done very well in their respective markets.