Bass Teen Posted November 21, 2013 Report Share Posted November 21, 2013 Hi guys, recently I hooked up a crunch 900.4 amp to an old 500 watt computer power supply unit I had. I know they are not the best amps out there but I am using it for mids. It works great, Power supply does not even get warm at a loud volume. Plus I have the psu fan firing towards the amp's heat sink. My problem is the channels, I can only use one channel and I have 2 10'' and 1 8'' (component speakers) with two tweeters. All 8ohms. I know attaching all those to one channel is gonna drop it below 2 ohms which is beyond the amp's capability. My second channel works but I have to switch my RCA wire around (switch the red input with the white) to get it to play. So basically I can't play on more than one channels. And for channel one to work I need to switch it around again. I see an input for 3/4 channel. Should I run another RCA cable to those inputs to get channel 3/4 to work. No matter what I do . I have messed around with the 234 switch at the back of the amp. ..So basically I'm limited to one channel . Can you help out a newbie . Should I run another pair of RCA Cable to the 3/4 input ? Just need another channel Greatly appreciate it . Car audio .......nuff said lol ... just jokingIm a teenager currently studying law but all i can think about is car audio.... Link to comment Share on other sites More sharing options...
hoit Posted November 22, 2013 Report Share Posted November 22, 2013 i'd start over with car audio personally...:-/ 2007 Chevy Aveo Ls sedan 2 Sundown Xv2 on scv4k @ .5 ohm 2 pair RE XXX 6.5 components on sax200.4 @ 2 ohm Big Three, Three runs 1/0 power from front to back, 1 ground front to back Two runs ground from rear bank to chassis XS power d3100 upfront, 3 Odyssey 2150s in bank Singer 220 amp alt Link to comment Share on other sites More sharing options...
goldeneye4564 Posted November 22, 2013 Report Share Posted November 22, 2013 does that amp need a remote turn on wire edit: also maybe the amp has a blown channel I RREEALLY ANGRY WIT U PHOTOBUCKET. HAD TO USE DROPBOX NOW HOLYYYYYY. Wanna ride bikes? Quote On 9/16/2017 at 3:28 AM, Jake Pace said: Oh i know how a 12v system works I did take 3 years of electronics in High school hands on and some in college and also worked on cars in college an always got A's to B's in each class. But oh well enough dealing with ppl who have probably not even lived as long as ive been into electronics! On 7/8/2013 at 4:01 AM, Banshee421 said: Do horns get low Link to comment Share on other sites More sharing options...
Bass Teen Posted November 23, 2013 Author Report Share Posted November 23, 2013 Oh ..guys.....thanks for the response I think i figured it out......The amp has a way of directing power to various channels......Bit tricky but i figured it out. Car audio .......nuff said lol ... just jokingIm a teenager currently studying law but all i can think about is car audio.... Link to comment Share on other sites More sharing options...
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