Perfectly working ZED classic amp, 125x4 or 400x2 rated. Chans 1&2 are running door speakers at 4-ohms per channel, and 3&4 are running a single 12" sub a 2-ohms bridged. The problem is, my sub is a DVC 4-ohm setup and so I can only run the sub at 8-Ohms (Series) or 2-Ohms (Parallel) wired to the amp, and decided to run it at 2-ohms wired bridged to 3&4 to keep the power up, whereas my thought at 8-ohms would be a substantial loss in peak power. So, essentially the amp is running chans 3&4 at 1 ohm each (2-ohms bridged) which is not what the amp is rated for (4-ohms bridged rated).
Sometimes the amp shuts off and I'm thinking its because the impedance is too low on these channels, and because of this I have to keep my volume control in-check so it doesn't shut off. Gains are set with voltage method and are all less than 1/2 way. The amp doesn't get very warm at all to the touch.
Power coming into the amp is stable - I have 2 batteries, a high-output alternator, and have done everything I can do to upgrade the stock charging, grounds and wiring. Voltage levels are very stable on the factory volt gauge.
My though is to just replace the sub I have with a SVC12" and run the amp at 4-ohms, but my thought is this would have a dramatic change in output/volume going from a 2-ohm sub to a 4-ohm sub, and I'd prefer to not go backwards in terms of volume capability.
On the other hand, I'm thinking this amp may breath-fire better running at 4-ohms-bridged than at 2-ohms-bridged. Thoughts? or will I lose spl? As I understand with these older regulated amps the wattage actually stays close to the same after a point with dropping the loads but I'm not sure how well clamped and protected this amp actually is.
Forget the POS card. I'm not wanting to switch that around yet.
Thoughts?
Sometimes the amp shuts off and I'm thinking its because the impedance is too low on these channels, and because of this I have to keep my volume control in-check so it doesn't shut off. Gains are set with voltage method and are all less than 1/2 way. The amp doesn't get very warm at all to the touch.
Power coming into the amp is stable - I have 2 batteries, a high-output alternator, and have done everything I can do to upgrade the stock charging, grounds and wiring. Voltage levels are very stable on the factory volt gauge.
My though is to just replace the sub I have with a SVC12" and run the amp at 4-ohms, but my thought is this would have a dramatic change in output/volume going from a 2-ohm sub to a 4-ohm sub, and I'd prefer to not go backwards in terms of volume capability.
On the other hand, I'm thinking this amp may breath-fire better running at 4-ohms-bridged than at 2-ohms-bridged. Thoughts? or will I lose spl? As I understand with these older regulated amps the wattage actually stays close to the same after a point with dropping the loads but I'm not sure how well clamped and protected this amp actually is.
Forget the POS card. I'm not wanting to switch that around yet.
Thoughts?
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My Zeus X definitely runs cooler at 4 ohms,when it drove two 12 inch 4 ohm subs it would get pretty hot and shut off occasionally.Now that I am running a single 4 ohm 15 the amp stays cool as a cucumber.The power rating should not change between 2 ohm or 4...Robert
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