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this is a simple question. Is the power always there for class d. i have a feeling it isnt. but lets say you hold down pause and burp. Is that power going to be there when you unpause or does it take more than a second to get there. Im using a shredder for street and was considering switching amps. to a class ab.
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1 - pioneer 5900 hu 1 - pioneer 650x changer 4 - coaxial 1206 speakers 2 - id midbass im adding soon 2 - ?? woofers 1 - PHD2 (blown up currently) 1 - 160 a2 (278 watts) (blown up currently) 1 - pioneer avd - 505 monitor 3 - streetglow "15 2 - svr 80 batteries 1 - kikass sound guru helping me out all the time. You know who you are. all stinger pro series wire. ALL platium connectors fuse and dist's. Dream series RCA's ? - Real angry competiors when i see them in the lanes.
Posts: 1446 | From: chicago, il, usa | Registered: Nov 2000
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posted
The amp will have power right away as long as the remote terminal is on the whole time. If all you are doing is not putting a signal on the RCA output by pausing, as soon as there is a signal the amp will amplify it. The only delay will be the delay for the deck to unpause.
posted
I would also suggest breaking the path of the rcas with a momentary switch instead of the pause button. This will keep it from poping when the pause is turned on and off. (some decks are better then others on this)
posted
ok i dont think u guys are getting what im trying to ask. i asked to vague so il try again. what i mean is class d when it goes from drawing like idle current to Full out 180amp draw does the way class d makes power affect of how long it will take to get full out power like is there a delay until the amp thats class d can do full output. i know as soon as i unpause it will play but will the amp beable to run at full power right away???
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1 - pioneer 5900 hu 1 - pioneer 650x changer 4 - coaxial 1206 speakers 2 - id midbass im adding soon 2 - ?? woofers 1 - PHD2 (blown up currently) 1 - 160 a2 (278 watts) (blown up currently) 1 - pioneer avd - 505 monitor 3 - streetglow "15 2 - svr 80 batteries 1 - kikass sound guru helping me out all the time. You know who you are. all stinger pro series wire. ALL platium connectors fuse and dist's. Dream series RCA's ? - Real angry competiors when i see them in the lanes.
Posts: 1446 | From: chicago, il, usa | Registered: Nov 2000
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posted
Yes, as soon as you hit unpause you will not only get full power but you will get the most power you are gonna get out of that amp that instant. After a fraction of a second has passed the FETs will have heated up and the "on" resistance will have increased slightly decreasing the output. The amount the output will decrease is not significant enough to worry about though.
I’m guessing the reason you are asking this is possibly because you notice a slight delay from the unpause to max SPL. There are two reasons I can think of that may cause this to happen.
One thing that may cause it is the speaker is not capable of moving fast enough to reach max excursion instantly. How fast it is capable of doing this is related to the Qes of the speaker. The lower the Qes the faster the speaker can start to move. The higher the Qes the slower it will start to move. If your sub has a Qes of 1 or higher you have a very slow sub. I think only radio shack stuff sucks that badly. The other thing is your unpause button which is probably nothing more than a single logic pin on a chip in your head unit probably has what’s referred to in semiconductor data sheets as a soft start. This means that it will not unpause to full power immediately. This is control systems issue in the design of the chip. With out the soft start you will introduce higher frequency harmonics and possibly over shoot which could cause damage to your system.
Again, once a signal is applied to your Class D, Its full power will be there instantly!
------------------ 2-DD 9512's 2-2000X's (for now) 8.0ft^3 box in a civic trunk One big ass port ?????dB's
It's not the size of your woofer, It's the size of the waves your woofer makes!
Posts: 1259 | From: Fullerton. CA ,USA | Registered: Oct 1999
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