Brandonblank Posted July 21, 2020 Report Share Posted July 21, 2020 so a wile ago i bought 2 T1D215's and 2 DES1000.1d's and installed it with a buddy of mine blah blah blah. basically, I am only using one T1D215 and a DES1000.1D. I have tried a tone of times to fine test/review information on both and cant find much(nothing for the amp, diamond audio elite 1000W monoblock. I feel like im allways trying to re-tune the amp. I thought i was a 1ohm sub until tonight i used my ohm meter and read 2 ohms on the sub(1000w rms sub), i can only use the mutimeter methed (for now). My head unit says its a 2v pre-amp out(FH-S501BT) my amp is a 5v max input sensitivity and i dont really know my max volume for it (guessing 55). Can someone please help me tune this crap correctly so that i can finally (for now) stop screwing with it. currently i have it set to 31-ish volts output, I am going to try adding 15v (45v total) output to the amp in morning. Also what Hz tone should i be using and why? Link to comment Share on other sites More sharing options...
slowfkncar Posted July 21, 2020 Report Share Posted July 21, 2020 Wait so your just trying to run 1 sub & amp correct? Your woofer should be reading 1 ohm, if not you could have a bad DMM or wrong/defective sub. T1's have the impedance printed on the jumper above the terminals, maybe take it out and take a look? Also the smd dd1 is nice for setting gains, Find someone or a shop? Link to comment Share on other sites More sharing options...
slowfkncar Posted July 21, 2020 Report Share Posted July 21, 2020 Also due to so many different combinations of systems, the LPF is dependent on your install and ears. A system like that, id probably start somewhere between 60-100hz. Link to comment Share on other sites More sharing options...
Brandonblank Posted July 21, 2020 Author Report Share Posted July 21, 2020 Yeah, I have a seconed T1D215, but i dont have a seconed amp, and my one amp i dont think will have enough power to properly push both(cant find and amp tests/reviews). I did RE-tune the system today, i think when i was setting the gains i had the head unit volume to high so when i played my music it wasnt gain matched properly (i set the head unit to 55 before, this time i set it to 44(out of 62). I did REcheck the subs Ohms and it was 1ohm, so if my math is right i set my gain on my amp output to a little less than 32Vs (31.6 i believe). I want the DD1 SOOOOO bad ha but for now im too broke. i also want eather a DSP or a new head unit and RF PEQ combo. but im also dealing with the issue of having a high powerd sub, and shitty ass stock speakers.... but besides my whining, i think i partially solved my shitty SPL issue on my sub. now im trying to hone in the tonality of the sub. So are you saying to use 60-100hz test tone for the sub/amp tuning cuz i used 40hz today, i was using 80hz tone before. Link to comment Share on other sites More sharing options...
slowfkncar Posted July 21, 2020 Report Share Posted July 21, 2020 I think you would be surprised comparing 2 woofers in a slightly bigger box vs one off the same power. For what its worth, the DES series still puts out near rated at 2 ohms. Sorry, i thought you were talking about the woofer LPF, if your setting gains by ear with a test tone, the frequency is a bit irrelevant without an oscope/dd1 or magic ears. Those DES amps are current hogs so i would try to find access to a DD1 or an oscope for setting your gains. Link to comment Share on other sites More sharing options...
Brandonblank Posted July 21, 2020 Author Report Share Posted July 21, 2020 hmmm, well now you have me thinking. i still have a dual Qboom ported box in storage. I use a multimeter to set gains. Im going to try and buy a Lummy Oscope. whe you say there current hogs, how so, i do have a seconed battry wired up in the back all grounded to factory grounds. Link to comment Share on other sites More sharing options...
slowfkncar Posted July 21, 2020 Report Share Posted July 21, 2020 The design of a fully regulated power supply is pretty awesome but generally aren't the most efficient, it also puts out 1000 wrms from 1-2 ohms, 750 at 4 ohms. While your system is playing music, your impedance jumps up and down (impedance rise), an amplifier that puts out rated from 1-4 ohms for example, will have a higher average current draw than one that isn't fully regulated of the same power, thus making them a current hog. JL AUDIO, RF BDCP, DIAMOND DES, EARTHQUAKE to name a few. Link to comment Share on other sites More sharing options...
slowfkncar Posted July 21, 2020 Report Share Posted July 21, 2020 With a fully regulated design, its pretty easy to smoke your gear by clipping. Link to comment Share on other sites More sharing options...
Brandonblank Posted July 22, 2020 Author Report Share Posted July 22, 2020 ok, sorry i think i understand what you saying. but i dont understand what you mean by fully regulated... my bad i dont mean to waist you time with noob questions lol 😂 Link to comment Share on other sites More sharing options...
Brandonblank Posted July 22, 2020 Author Report Share Posted July 22, 2020 I do appreciate you taking your time to help and teach me tho haha Link to comment Share on other sites More sharing options...
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