20.1 daily?

[mikeyboc 10+ year member]

If you only have an 80 amp alt....forget the 20.1 end of story.

x2, the 20.1 will eat your alt for breakfast and go loking for more.

 

[hawaiian5 10+ year member]

i already have a 20.1, just not installed. i planned on getting a ho alternator, battery, big 3. how else can i make my electrical system solid?. what do u guys think i should do? sell the amp? buy a sub that can go lower in ohmz? also its my only car so i dont want the amp to screw my electrical system.

 

[mannyb18b]

it will do 1800+ at 1ohm

 

[phyphoestilic 5,000+ posts]

I think u should be fine, if u have the amp u might as well try it. How many amps is the HO alt ur getting putting out? because with a 2nd battery and big 3 u should be pretty good already. They recommened a 200 amp fuse for the 20.1 so Im guessing it wont be pulling mroe than that at most.

 

[hawaiian5 10+ year member]

im looking for a ho alternator that will do 200 amps minimum. also im not to keen on using a second battery because its a family car. my wife will be using it and i have a 6yr old son ridding along. not sure where i would put the battery. any options. any recomendations on alternator?. can a to big of an alternator also hurt my electrical system?

 

[Chevyaudio 5,000+ posts]

No...read the sticky in the electrical forum. I have a 250 Amp HO alt on my 04 silverado, and it loves it.

 

[phyphoestilic 5,000+ posts]

im looking for a ho alternator that will do 200 amps minimum. also im not to keen on using a second battery because its a family car. my wife will be using it and i have a 6yr old son ridding along. not sure where i would put the battery. any options. any recomendations on alternator?. can a to big of an alternator also hurt my electrical system?

There was a whole thread on that, the answer is no. Most people put the 2nd battery in the trunk. 200 amp HO will be more than enough, because it's probably 200amp max draw (at like .25 ohm or something) I doubt regularaly it'll draw more than 150. Dont forget to do the Big 3, u should be set than. I dont know where to tell u to go for ur alt.

 

[Chevyaudio 5,000+ posts]

Looks like Nick is lurking so an official response may come soon.

 

[hawaiian5 10+ year member]

yeah, i sent him a message. so i guess that a ho alternator with a optima g31 and the big 3 will be ok with this amp for daily. correct?

 

[hawaiian5 10+ year member]

yeesss. nick got back to me. well, he said it was made for everyday driving and they wouldnt spend alot of money on a amp for only competetions. ( just what i needed to sooth my soul) lol. ill still upgrade my electrical though just to be safe. ill run my massive audio dmx stage2 with the amp until i.a. releases the warden, than ill change the setup again. thx for all the help and infough guys. aloha

 

[bigbassman Premium Member]

the 20.1 will run daily @ .5 nominal with no electrical upgrades.. and depending on actual impedence... do 1600-2100 watts

at .5 nominal, efficiency is around 68-70%..

with upgrading wiring, and 2 big batteries.. you'll be able to maintain 12v pretty easily, even with demanding content..

near 12volts with plenty of current.. 20.1 will do between 2400-3kw @ .5 nominal, again depending on actual impedence..

in my car during our little test session, I measured burst current demands of over 320 amps with a couple different bass heavy tracks @ 12volts..

with a sine wave.. 317 amps of continous draw at 11.7 volts ( car wasn't running, and the amp was in use for over 3 hours before power testing //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif )

Loyd L.

 

[hawaiian5 10+ year member]

thx for the info, i wish i could go down to .5 ohm but my sub is dual 2 ohm so i can only go down to 1 ohm. when the warden comes out, hopefuly i can change that.

 

[PatFitz9 10+ year member]

go for it. i had mine running at 1 ohm on a stock electrical system in a 93 explorer. that thing was wangin my 18xxx at around 2k no problem and no dimming at all. when i was running 1k watts on a different amp, i was getting dimming. so yeah, i would say it's pretty good for daily. and if you can afford it, why not? it's always good to have that ability to change subs and never need a new amp.

 

[hawaiian5 10+ year member]

instead of a second battery, would it be ok to put a xstatic batcap in the rear?

 

[BassAddictJ 5,000+ posts]

with a sine wave.. 317 amps of continous draw at 11.7 volts ( car wasn't running, and the amp was in use for over 3 hours before power testing //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif )

Loyd L.

yiiikes......

ill be running .35 daily soon enough and i think my alty will be taking a shit soon enough........ maybe if i keep the gains down and not do 3000w daily it'll prolong the life of the alty.......i cant wait to try this amp