I know it's all subjective but how much better do you think these are than j&m?
Why is he selling the jm amp? Moving up to the 500 watt? The amps are made by Arc Audio to the JM "specs" but really all they did was pay for the tooling to look different. Both great amps, just way more expensive for the JM and if you do not need the install brackets, there is no need to buy the JM.
Sorry to intrude upon your posts guys, just peeked my curiousity while I am the bored passenger awaiting his shift at the wheel on the way to Daytona