please halp with pop!

[ahardy17 10+ year member]

I just went to test and tune my system with a new alpine HU (CDA 9856) and an SSL S4EQ, 4 band EQ. So I have 2 channel rca's running between the 2 and then 6 channels running out to my pdx-v9. The turn-on pop is literally endangering my speakers it's so ferocious...and the higher the volume on the eq is when I turn it on, the louder the pop. I just replaced my battery ground an hour, stupid thing had like 5 ohms of resistance in it. I spliced into the ignition/turn on signal for the eq, so even though both the HU and eq receive power at the same time, the HU doesn't turn on until I hit the power button. I was having this pop problem before with my sony HU and no EQ, so I thought something had gone wrong with the outputs, which were already grounded to its chassis. Would it help if I ran the remote wire from the eq to the same wire as my amp remote so it turns on slightly after the HU? I'm baffled, frustrated, and out of beer -_-

Click to read more...

 

[ahardy17 10+ year member]

bumpatizing this, I tried removing the RCAs and turning on the amp, the pop is still there, only slightly evident. The higher the volume, the louder the pop. Just checked my ground, dmm indicates it's fine. I could move it to a seatbelt bolt, but that could interfere with my new box. Any suggestions?

 

[bbeljefe]

Run a new ground wire from the head unit to a very good grounding location. The head unit is the signal ground source and if there is a voltage potential between that ground and the other grounds, you'll get that pop. Of course, you could also have a damaged head unit. If the new head unit ground doesn't help, then ground the RCA'a at the head unit.

 

[ahardy17 10+ year member]

That was the last thing I tried, to no avail :/ Would the head unit still be able to induce that pop if the RCA's were removed on the amp side? I was running a HU with grounded RCA's before with the same problem, which came along sometime after I blew my old sub and began running my 5 channel to just 4. I'm wondering if the lack of that output channel is throwing something off? BTW all my grounds like anywhere and anything ground seems to read about an ohm, isn't that a little high? I've been upgrading grounds left and yet to see any improvement.

 

[bbeljefe]

That was the last thing I tried, to no avail :/ Would the head unit still be able to induce that pop if the RCA's were removed on the amp side? I was running a HU with grounded RCA's before with the same problem, which came along sometime after I blew my old sub and began running my 5 channel to just 4. I'm wondering if the lack of that output channel is throwing something off? BTW all my grounds like anywhere and anything ground seems to read about an ohm, isn't that a little high? I've been upgrading grounds left and yet to see any improvement.

Check the internal resistance of the meter you're using. It's not terribly uncommon to have almost an Ω of internal resistance.

Does this pop occur with the vehicle not running?

 

[Timmy13091 10+ year member]

That was the last thing I tried, to no avail :/ Would the head unit still be able to induce that pop if the RCA's were removed on the amp side? I was running a HU with grounded RCA's before with the same problem, which came along sometime after I blew my old sub and began running my 5 channel to just 4. I'm wondering if the lack of that output channel is throwing something off? BTW all my grounds like anywhere and anything ground seems to read about an ohm, isn't that a little high? I've been upgrading grounds left and yet to see any improvement.

This should solve it

http://m.ebay.com/sch/i.html?kw=PAC+TR-4+Amp+Remote+Turn+On+%26Turn+on+Pop+Eliminator+TR4&epp=24&pgn=1&cmd=SREF&cid=

 

[ahardy17 10+ year member]

Check the internal resistance of the meter you're using. It's not terribly uncommon to have almost an Ω of internal resistance.
Does this pop occur with the vehicle not running?

I think it has about .2 ohms internally. And yes it pops on or off, RCa's or no RCA's

This should solve it
PAC TR-4 Amp Remote Turn On &Turn on Pop Eliminator TR4 in Consumer Electronics | eBay

I'd love to solve the problem for that low price, I just can't help but wonder what's causing it and how to eliminate it altogether.

 

[Timmy13091 10+ year member]

I think it has about .2 ohms internally. And yes it pops on or off, RCa's or no RCA's


I'd love to solve the problem for that low price, I just can't help but wonder what's causing it and how to eliminate it altogether.

Dude I'm telling you just buy the PAC lol .. If you'd love too then do it .. You should be just fine .. They make them for a reason

 

[Side Show 10+ year member]

I get turn off pop, but not turn on pop...... was told that it was stored pwr in my amp releasing once the amp is turned off

 

[bbeljefe]

I think it has about .2 ohms internally. And yes it pops on or off, RCa's or no RCA's

If you've isolated the amplifier from the signal and you still get the pop, it's a problem with the amp. And buying an isolation transformer will not fix it. It sounds like you have a preamp problem inside the amplifier but to be sure I'm understanding correctly... you can disconnect all RCA cables from the amp (not from the head unit) and you still get the pop?

 

[Timmy13091 10+ year member]

I get turn off pop, but not turn on pop...... was told that it was stored pwr in my amp releasing once the amp is turned off

You need one as well lol links up there ^ my man //content.invisioncic.com/y282845/emoticons/fro.gif.c695f1f814b01c4ad99fe7f8cccadd29.gif

 

[Side Show 10+ year member]

cheers awse... so these will eliminate my turn off pop you reackon?

 

[Timmy13091 10+ year member]

cheers awse... so these will eliminate my turn off pop you reackon?

Yes It definitely should in your situation ...

 

[Side Show 10+ year member]

hmmmm might give it a go, I don't have any turn on pop tho, only turn off pop......... these don't seem to say anything about turn off pop

 

[DukeNut 10+ year member]

^ i have turn off pop on an amp too, put another in and no pop. weird thing is i installed the popping amp in another car and it does not pop:crazy: really wish i knew why it did in 1 car and not the other