I didn't mean it was no good, i just meant for future upgrades, something with a bit more power, a subsonic filter, and one that will accept some lower gauge power cable. All thought the amp is capable of putting out 1000rms at 1ohm, it dosent make that power all the time. That's it's maxuimum output in RMS, and most likely measured at a high voltage rate, like 14.4v. It's most likely running around 12.5-13.5v, also even though your loading it at 1 ohm, the impedance levels can constanly change.