M490/M680

[vrauba]

I'm trying to upgrade from my 4 X 40 Haes amp to a 6 X 40 Haes amp to power rear speakers. Is there a difference between M490 996-645-321-00 and M680 986-645-312-00? Or does that only mean one came from a 996 and the other from a Boxster. Will either one work equally as well? Thanks.

[Cassiebox]

I'm trying to upgrade from my 4 X 40 Haes amp to a 6 X 40 Haes amp to power rear speakers. Is there a difference between M490 996-645-321-00 and M680 986-645-312-00? Or does that only mean one came from a 996 and the other from a Boxster. Will either one work equally as well? Thanks.

The M490 and M680 systems are very different. M680 was the DSP processing system. To use an M680 amp, you'll need the DSP (Digital Sound Processing) control panel (where the batwing is) in order for it to work - along w/ the harness.

You need to match the type of amp w/ what you have currently for as close to plug-n-play as you can get. Also, when upgrading from the 4x40 to the 6x40, you'll need to trip a few key tabs from the connector, but that's very easy to do.

I presume you're refrencing the M680 amp that was advertised on Ebay? I saw it too and sent an email to the seller mentioning that they should clarify what systems it will work with. No response, but I'm not surprised. If I recall, their feedback rating was 1. After this sale their postive feedback rating will probably be 50% unless they clarify.

Good luck finding the correct amp. There are plenty out there but I wouldn't pay over $75 for one. You'll

enjoy the extra power to the rears.

[Tool Pants]

Cassiebox has covered the subject.

I am also looking/bidding on a 6x40 M490 analog amps from a 996 that I see on ebay for rear speakers. So do not bid against me.