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Swordlordboy1234

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Posts posted by Swordlordboy1234

  6. New Album - PSYPH MORRISON - THE DIAMOND IN THE MUDD (edit: Now on Itunes & Rhapsody!) Links inside

    in Tunez - All things music related

    Posted

    Downloaded 320 version from wccaraudio nice and easy, thanks Steve. Commented on psyphs YouTube channel to tell him personally how dope his album is.

    Currently raping the reply button on tracks 2,3,6,12 but all are pretty sick. Deff not a 1 hit wonder, those beats are sick, thanks chp, and psyph better have some more hits soon! Nothing better then the "awesome album that no one has herd while driving down the beach boomin" feeling

    • Like (+1 Rep) 1

  7. problems....

    in General Audio - Can't find a category for your question? Ask here.

    Posted

    I was under the impression that zero bass boost with a track 5 DD1 tune was best. Tuning by ear, using bass boost, and guessing where to set crossovers are the best ways to make amps clip. I proved this to myself once by giving myself 15 minutes to adjust a bass amp as best as I could to be as loud and clean as possible. After 15 minutes, it was okay... But when I used the DD1 I found that I was clipping badly, causing the amp to overheat, and also I was losing some of the lower notes because of the clipped signal. Also I guessed what volume the head unit clipped and found out I was working with a distorted signal before I even touched the gain.

    The result.

    After 15 minutes I did my best to get a clipped signal that sounded maybe 6 of 10 on a rating scale.

    With the DD1 it took about 45 seconds to find the max unclipped volume on the head unit, and another 20 seconds once I got to track 5 (the compromise between sq bass setting and spl setting) to find the proper gain setting.

    What's not to love about the DD1?

    There are too many variables to do it properly as a human with only a screw driver. Your guessing where the head unit distorts, your probably not using clean tracks to start with, your ear can't hear distortion until it gets past some obscure number like 8% distortion unless your a trained audio file and then it's like 3% distortion. And this isn't even accounting for the output voltage of your head unit. If 2v then your gain will be higher, if 5v your gain might not even be half way up.

    Props to Steve for making me seem like a pro when tuning systems for head units, mids highs, and bass. People are always like "nah it's tuned by a professional shop" and I hop on there and show them how it's really done properly... Yet it's so easy to use.

    Moral of the story. If you want it right, spend the 140$ or whatever it is... And save the doubt and headache. The machine is better then the human ear in this instance.

  8. double rms on mids/highs

    in Mid's and highs

    Posted

    Dial the amp down to run rms power. Mids and highs will burn up really fast once they start to stink

    Ohms law: power = v2/r where v is ac voltage, and r is the resistance

    See now i understand what you said more clearly. the 14.4 is the DC voltage. Not AC. the AC voltage is after the amplifier amplifies it and the gain knob controls how much it is amplified. meaning i use a DD1 to insure zero distortion... and i set my amp up on 2 channels... and i use the volt meter on the the speaker outputs to measure 18.4 v...

    Now will doing it this way give me any benefits? Since you had to guide me into understanding how my own amp works (i feel like a student being guided by a teacher lol) ... can you or someone else explain the benefits of it? does it have something to do with "headroom" that i keep hearing about? ...

    Will it make the amp work less hard, giving it better SQ or better efficiency or something?

  9. double rms on mids/highs

    in Mid's and highs

    Posted

    I would be careful clamping your amp in 2 channel with your mids hooked up. Unless you start with your gains all the way down and burp for like 1 second, which makes it really hard to get an accurate reading. I bridged my 4-channel ran it to my components, voltage without any speakers hooked up was 34v. Hooked up speakers to see what i got under load, and in the time it took to get a god reading i cooked my mids. Was doing 120-130 watts a 1khz to 90w rms speakers. I should have just left well enough alone because on music they were doing fine, probably seing around 100-110 watts. And i had everything set with the 0db tone using the dd-1.

    You may not have the same problem but then again, you want to risk it?

    Thats what i was hopeing i wouldnt do. Because these mids were not exactly cheap for my budget that i can replace them tomorrow if needed... but at the same time i was like... DARN... what to use the other 2 channels for... lol

  10. double rms on mids/highs

    in Mid's and highs

    Posted

    Where are you getting 14.4 from?

    125w=v2/2.7ohms

    125*2.7=v2

    337.5=v2

    v=18.4v

    So now hook up your dd-1 and a vol meter to the output on your amp, play 1kHz -5db and adjust your gain so your amp puts out 18.4vac, making sure that the dd-1 doesn't indicate distortion.

    Yeah that was noob, i was thinking 14.4 volts lol. time to google some to help me understand the valuable info you just provided in a language i dont fully understand =]

  11. double rms on mids/highs

    in Mid's and highs

    Posted

    Dial the amp down to run rms power. Mids and highs will burn up really fast once they start to stink

    Ohms law: power = v2/r where v is ac voltage, and r is the resistance

    If this is true... then 14.4 squared is 207.36... 207.36 / 2.7 (actual resistance of my speakers at hand) is 76.8 RMS.. and since they can take 125 rms then i can run 2 channels on one set?

  12. double rms on mids/highs

    in Mid's and highs

    Posted

    No i will have 2 woofers and 2 tweeters total. 1 600-4 total. 128 x 4 @ 4 ohms or 395 x 2 @ 4 ohms (on birth sheet)

    My question is... is it beneficial to run my amp as a 2 channel (395 rms) but keep the gain super low (confirmed zero distortion with my DD1) or just run them on 2 of my 4 channels (128 rms)

    They will take a single channel of my amp full power no problem. But i was unsure of "headroom" and its principles. That maybe theres a benefit to giving the speakers way too much power but keeping the gains so they are not putting out Max RMS power (set using my DD1)

  14. double rms on mids/highs

    in Mid's and highs

    Posted

    So i ordered a brand new set of Polk MM6501 components, and i have a rockford T600-4... but i decided against rear fill for the moment. Is it possible to run my amp as a 2 channel on these mids? i realize 790rms is too much for 125 rms each side (250 total)

    Will keeping the gains lower give me more headroom or something to this effect? Or should i just run it as a 4 channel (128 rms) and leave the other 2 channels empty for now till i find a better use.

    I do have a dd1, i was thinking setting the gains on SQ setting as a 2 channel on my 600-4... maybe that wouldnt be too much as long as i have a clean signal from the HU and a clean signal super low gain on my amp?....

    Help please. Installing on tuesday

  15. Bump4life

    in Buyer / Seller Feedback

    Posted

    http://s1071.photobucket.com/albums/u503/Jeffrey_Hald/?action=view&current=428d0247.jpg

    http://s1071.photobucket.com/albums/u503/Jeffrey_Hald/?action=view&current=9d8ad2f0.jpg

    http://s1071.photobucket.com/albums/u503/Jeffrey_Hald/?action=view&current=a11affcd.jpg

    Got my package on time. Package was great, i didnt take pictures of it because the UPS guy tossed it in my yard and my dog had to mark what was new in the yard -_-. Anyways after i ditched that box the rockford box was fine, packing looked like it was new. Honestly everything was in GREAT used condition. A few scratches around the unit and one small dent on the metal part on the top of the amp.. But im sure he didnt exactly keep it in a glass case in his living room if you know what i mean. No complaints at all.

    Hopefully he will want to part with his mids and highs soon :D. When i can i will be buying from him again; very honest and helpful. Maybe meet him at a future show and trade some demos? Cool guy, if he has anything you want for sale. Id put him top of the list.

    If only he had the rest of my future equipment! lol id really hate to find out that other guys selling stuff on SMD are not as great as he is.

  17. 4 SMD 340a Yellow Mechmans - WOW

    in MechMan Alternators and 12v Accessories

    Posted

    Why not just get a few more AQ 3500's? .335 ohms is just retarded low. Lol are you sure that's safe?

    I've seen some amps run at .175...

    But when it comes to electrical AMI knows his shit.

    Believe me i know AMI is a mad scientist/genius when it comes to car audio.. i follow all his videos and have had a few short chats with him on youtube PM when he answered my questions.

    I was just hoping AMI himself could donate 5 minutes and explain how its possible to (safely) push those amps that hard, and maybe a general rule to follow of Watts/electrical when you push your systems lower then 1 ohm.

    I love learning off him and a few others when i can because not only are they awesome at what they do, they dont mind teaching others which is awesome

  25. SSA ZCON "can they hang"

    in Subwoofers / Enclosures

    Posted

    Zcons are underrated in my opinion, but not half power under rated. Have fun popping that sub with the bc3500. Why not save up for a second zcon and then get the 3500 instead of trying to take short cuts and end up having just to re cone your first zcon and buy a second zcon so u don't over power it again.

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