qjmoten Posted January 24, 2011 Report Posted January 24, 2011 Hello guys i have recently pulled all the factory crap out of my truck and ordered some things but i have a few problems. I bought a set of Cadence CVLT-35B tweeters along with a pair of Selenium St-200s i also purchased two pair of Alpine SPS-500(i know i could have gotten components just didnt want to) . The amp i have is a Hifonics HFi100.4 and the headunit is a Pioneer AVH-P5200BT. At the time of purchase i didnt know the seleniums needed a bass blocker of some sort so i searched and came across using an active crossover. My question is would i be able to use what i have listed with the addition of a crossover or should i buy a separate amp for the tweeters? The crossover i had in mind is the Kicker 03KX3. the vehicle is a 2door dodge ram. any input would be appreciated and if you think i should buy something else tell me.
95_1500 Posted January 24, 2011 Report Posted January 24, 2011 Just run your amp in an "active" setup, you dont need to buy any crossovers. Set the 100.4 to HPF for whichever two channels you use to power the tweeters and turn the HPF knob to about 2.5khz. According to the pic I found the knob adjusts from 60hz - 13khz so turning it between a quarter and a third of the way up should be fine since the ST-200s respond from 2 - 20khz. Original Build http://www.stevemeadedesigns.com/board/index.php?showtopic=24095
qjmoten Posted January 24, 2011 Author Report Posted January 24, 2011 Just run your amp in an "active" setup, you dont need to buy any crossovers. Set the 100.4 to HPF for whichever two channels you use to power the tweeters and turn the HPF knob to about 2.5khz. According to the pic I found the knob adjusts from 60hz - 13khz so turning it between a quarter and a third of the way up should be fine since the ST-200s respond from 2 - 20khz. thanks man. do you know if the crossovers really add that much of a difference to the clarity of the amp? also the pre outs on my headunit are 4v i believe. could i benefit from using a line driver to up the pre out voltage
95_1500 Posted January 24, 2011 Report Posted January 24, 2011 thanks man. do you know if the crossovers really add that much of a difference to the clarity of the amp? also the pre outs on my headunit are 4v i believe. could i benefit from using a line driver to up the pre out voltage The crossovers wont "add" clarity to it, setting them eliminates sending the wrong frequencies to the driver (in the case of tweeters usually anything lower than 2khz). A line driver wouldn't benefit, pioneer units generally put out their rated preout voltage at just below clipping volume (you will have to test and find out what volume that is for your unit) and since that amp takes from .2 to 6 volts input you will only have to adjust the gain about a quarter of the way up, if that. I said quarter because since its max input is 6 volts, if your headunit had 6v preouts you would not have to turn the gain up at all to have matching preout and amp input at your max unclipped head unit volume. Original Build http://www.stevemeadedesigns.com/board/index.php?showtopic=24095
qjmoten Posted January 24, 2011 Author Report Posted January 24, 2011 ok cool. Im understanding this now. Highs and mids are way more sophisticated imo than subs lol
95_1500 Posted January 24, 2011 Report Posted January 24, 2011 Glad I could help.. People make it seem harder to set mids/highs amps than it really is, I recommend learning how to use and set them with an o-scope just like you should with your gains.. But all of that can be done in good time, get your roots in the ground first. Original Build http://www.stevemeadedesigns.com/board/index.php?showtopic=24095
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