help, when i turn up the level on my amplifier past the half way mark my sub starts thumping over and over till i turn it back down.what the heck i got good ground.even with the head unit of it does it.i have a 4 channel 1000 watt american legacy and only bridged 2 channels
Replies (3)
swez on 05/31/2006 22:59:34
Your amp gains on the sub channels may not be set properly to HU RCA voltage. This will cause the bridged amp to overload and behave as mentioned.
What make & model #'s are used here? Amp, HU, sub & full range speakers?
Swez
jsimpson2006 on 06/1/2006 11:02:33
i have a aiwa cdc-x227 hd/american legend 2 4 channel 1000w amp/punch xlc 10" sub/ optomus full range speakers that are directly hooked to my hd/ rca plugs out of head unit into amp for the sub.
swez on 06/1/2006 15:39:24
The manual:
http://www.us.aiwa.com/default.asp?page=ownerManual&action=browse&model=310
This unit specs note 2.2 volts at RCA outs into a 10,000 ohm amp input impedence. Some amps are 20,000 ohms inpedence.
To adjust amp gain, start at 2.0 volts and work your way down to 1.5 volts. HU tone controls are "flat" (No boost, no cut) HU volume control at 80% of maximum output.
Which Punch model number sub are you using here now? How is it wired to amp?
Swez
Replies (3)
swez on 05/31/2006 22:59:34
Your amp gains on the sub channels may not be set properly to HU RCA voltage. This will cause the bridged amp to overload and behave as mentioned.
What make & model #'s are used here? Amp, HU, sub & full range speakers?
Swez
jsimpson2006 on 06/1/2006 11:02:33
i have a aiwa cdc-x227 hd/american legend 2 4 channel 1000w amp/punch xlc 10" sub/ optomus full range speakers that are directly hooked to my hd/ rca plugs out of head unit into amp for the sub.
swez on 06/1/2006 15:39:24
The manual:
http://www.us.aiwa.com/default.asp?page=ownerManual&action=browse&model=310
This unit specs note 2.2 volts at RCA outs into a 10,000 ohm amp input impedence. Some amps are 20,000 ohms inpedence.
To adjust amp gain, start at 2.0 volts and work your way down to 1.5 volts. HU tone controls are "flat" (No boost, no cut) HU volume control at 80% of maximum output.
Which Punch model number sub are you using here now? How is it wired to amp?
Swez
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