Adjusting the ARC amp isn't rocket science. Just download the ARC manual from the website, and adjust the gains accordingly. Pretty straight forward.
mrmagloo: If your last J&M experience was 2 years ago ........things have changed with their ROKKER amps. For the past year, the manual gain control amps are no longer available .........only the DSP versions where the only gain control is via a
downloadable program allegedly "tailored" to your setup. It appears that the J&M owner, John Lazzeroni, tired of customers setting the amplifier gain controls "too high" and claiming warranty damage. So, not trusting his customers, he developed a software controlled gain system (dsp) which provides J&M control over what they deem to be the "proper" settings. For me his settings were waaaay too conservative ..........i.e. not enough volume to enjoy music at highway speeds. I've been struggling to obtain a DSP program solution from John for over a year now with little success and no responses to my last 3-4 emails. Finally took my issue to the forums to air these problems out in public. John finally responded to my
hdforum post this morning

I requested 100% control......we'll see where it goes

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