alpine quality in jeopardy?

[SQBubble 10+ year member]

Headroom means.. *L* it means how well or gracefull and amp goes into clipping, how well it handles transients "however ya spell it" and just simply how it behaves when pushed over the limit. Most new amps with there crappy powersupplies hit a brick wall and let the smoke out when overdriven, while older amps with no features but a powersupply capable of double the amps output can melt a vc and usually put out twice it's rated power "clipping of course" and survive, speakers usually did not! Usually just getting hot enough to melt your carpet //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

hmmm, so when u say pushed over the limits.. that means the gain at the max? and what exactly is clipping, i neverrr really understood what it was really...is it when speakers starts to distortt when setting the gain?

 

[desertheat 10+ year member]

Here ya go, see ya in a few hours. Will be good edumacation for you //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

http://www.caraudio.com/forum/showthread.php?t=61853

 

[Slaugh 10+ year member]

hey dude, i have a alpine mrv-f407 and i use for my component kit using the 3WAY active xover from my hu... i like it a lot, has all the protections i need, sounds GREAT and retailed for a VERY high price (like 550 dollars or something... i paid like 190 thou LOL)... it even has a subsonic filter, which doesn't seem to work when i tested it, but maybe that's because i do the cuts straight out of my head unit and by having this amp on FULL PASS mode it should have it shut down... other impressions are definetely only the greatest... sound quality must be mentioned again (clean as any alpine of the good ole days must be), solid construction, somewhat flashy (if that matters to you)... negative aspects are that the Battery and the ground bornes should be bigger so you shouldn't have to use terminals on it (the bigger cables you can fit in them are 8mm² cables if you're lucky with soldering)...

this is a picture of me when i had just arrived home after ebaying it lol

(yeah im defintely an ugly fsck LOL)

i also took pictures of it's insides and sent the pics to AmpGuts.com... i've rarely seen an amp well built as it http://ampguts.realmofexcursion.com/Alpine_MRV-F407/

but this amp was made in Korea, im sure the ones built in China will have a lower grade built level...

hope i've been helpful to you ... btw i LOVED the thread, will read it again later...

 

[FoxPro5 5,000+ posts]

oh well... it is kinda fun talking to u guys..haha !! thats a nice forum really!

It's all good bro

One thing we can all agree on...and there is no contesting this...is that amps "sound" different becuse they all have different abilities to do what they are designed to do - AMPLIFY!!

Also, we have all owned Alpine products here...some of us many times and many types...and we have all had good experiences with them and not so good experiences with them. This does not mean the Alpine does not make quality products....it just means that we all have different perceptions of what we believe the poduct is supposed to deliver. And IMO, Alpine is not delivering like they used to in some of their products. I for one have never seen a negative review on any F#1 Status product....but that could be me.

 

[SQBubble 10+ year member]

It's all good bro
One thing we can all agree on...and there is no contesting this...is that amps "sound" different becuse they all have different abilities to do what they are designed to do - AMPLIFY!!

Also, we have all owned Alpine products here...some of us many times and many types...and we have all had good experiences with them and not so good experiences with them. This does not mean the Alpine does not make quality products....it just means that we all have different perceptions of what we believe the poduct is supposed to deliver. And IMO, Alpine is not delivering like they used to in some of their products. I for one have never seen a negative review on any F#1 Status product....but that could be me.

I fully agree with you dudee, and its the same for any compagny! There is no perfect compagny.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[SQBubble 10+ year member]

but hey i dont understand this:

Clipping: The distortion that occurs when a power amplifier is overdriven. This can be seen visually on an oscilloscope, when the peaks of a waveform are flattened, or "clipped of," at the signal's ceiling.2

how can u know if the amplifier is overdriven without an oscilloscope?

 

[LowZ24 10+ year member]

hey thanks for your opinions guys(just got up.....time for work)//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

thanks for those pics slaugh(nice).

wish i could see many more pics like that of other amps

hey but thats another thread

off to work i goooo:crying:

LowZ24

 

[imaspaceguy90 10+ year member]

I still think alpine decks and the subs still have great quality for the price.

 

[imaspaceguy90 10+ year member]

hey dude, i have a alpine mrv-f407 and i use for my component kit using the 3WAY active xover from my hu... i like it a lot, has all the protections i need, sounds GREAT and retailed for a VERY high price (like 550 dollars or something... i paid like 190 thou LOL)... it even has a subsonic filter, which doesn't seem to work when i tested it, but maybe that's because i do the cuts straight out of my head unit and by having this amp on FULL PASS mode it should have it shut down... other impressions are definetely only the greatest... sound quality must be mentioned again (clean as any alpine of the good ole days must be), solid construction, somewhat flashy (if that matters to you)... negative aspects are that the Battery and the ground bornes should be bigger so you shouldn't have to use terminals on it (the bigger cables you can fit in them are 8mm² cables if you're lucky with soldering)...
this is a picture of me when i had just arrived home after ebaying it lol

(yeah im defintely an ugly fsck LOL)

i also took pictures of it's insides and sent the pics to AmpGuts.com... i've rarely seen an amp well built as it http://ampguts.realmofexcursion.com/Alpine_MRV-F407/

but this amp was made in Korea, im sure the ones built in China will have a lower grade built level...

hope i've been helpful to you ... btw i LOVED the thread, will read it again later...

Your not ugly, you just look like that butler from the movie Clue and rockie horrror picture show.

LOL JP

 

[fosgate140 10+ year member]

Your not ugly, you just look like that butler from the movie Clue and rockie horrror picture show.



LOL JP

lol. long time no see spaceman

 

[imaspaceguy90 10+ year member]

I kno man, we should chat again some time, Im ya buy some of yo shit. lol

 

[FoxPro5 5,000+ posts]

but hey i dont understand this: Clipping: The distortion that occurs when a power amplifier is overdriven. This can be seen visually on an oscilloscope, when the peaks of a waveform are flattened, or "clipped of," at the signal's ceiling.2

how can u know if the amplifier is overdriven without an oscilloscope?

Well your HU is the sound signal source, right.....and that drives the amp....the amp amplifies....and your speakers react. So you can go to the source (most likey the volume is too high) or the end product which is distortion played by the speakers.

Clipping is not always "bad"...some might even say slight clipping is prefered...pop in Nirvana's Nevermind album and you will know what I'm talking about...it was recoded with the signal ~20% clipped //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif

 

[SQBubble 10+ year member]

omgg i got -16 point cuz of this thread!!//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif wtf lolll

 

[SQBubble 10+ year member]

//content.invisioncic.com/y282845/emoticons/woot.gif.aaa6090e619a97b6090d16dd863c5a69.gif thx alot FoxPro5:yourock: loll

 

[Slaugh 10+ year member]

omgg i got -16 point cuz of this thread!!//content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif wtf lolll

//content.invisioncic.com/y282845/emoticons/laugh.gif.48439b2acf2cfca21620f01e7f77d1e4.gif it would seem like alpine fans are striking back