I wonder if perhaps I should just get both a Gen 3 and 4 Mach RCU, see what I like better (I prefer loudness at times, bass at others)...Then sell the other. I wasn't aware there was that much of a difference in the two. Do they distort artificially after half volume like the regular RCU? I can't find any info on Google with that.No you aren't confusing anyone. When I first discovered the Mach/JBL RCU upgrade idea I bought a Mach RCU because I wasn't interested in a seperate subwoofer. I'm not someone who needs to blow the windows out of my car with overwhelmingly powerful bass. I normally listen to metal, so good highs and mids with decent lows is all i want. I don't use the door tweeters - I bought pioneer 6x8 3 ways that sound amazing with my Gen 3 Mach RCU. I felt like the Gen 3 Mach sounded better than Gen 4, but maybe other people disagree. I tried every Mach/JBL RCU in my 2004 Taurus SE with 6x8 pioneer 3-ways and the Gen 3 was the winner in my opinion. The highs and lows sounded better, but I think thats because the gain was set different on the Gen 3 from the factory. The circuitry is the same, but the gain is set higher on the Gen 4, which makes the RCU seem louder, but the amperage is lower at a high volume levels. In other words, with the volume set to 3 dots on a Gen 4 RCU, it will sound very loud, but with noticeably less bass. With the volume set to 3 dots on a Gen 3 RCU, it will be less loud than the Gen 4, but with richer bass response and more pronounced highs.
Does this make sense?
I did think about what I posted.By the way, your post may have negatively affected my credibility, just so you know. As a senior member, please think your comments through before posting. You made it sound like I'm out to rip people off.
Yea I have seen a couple of those too, but those have the F7DF or later part number, indicating it to be a MACH not a JBL. The picture he has on the Gen 3 listing is of the Gen 4 amp (besides the point). F6DF-18C851-DE while having a 96 part number, would be the MACH RCU equivalent from a high spec 96...the "Premium Sound" amp, like Export models received. Same as MACH, just before MACH became the new standard for 97MY.There was a gen III RCU that was mach and had a JBL sticker on the top of it, with no subwoofer output, I have one. It was from a 98 SHO with NO subwoofer factory. So his listing may not be incorrect...