arc 4150 to ppi pc650? worth it?

[drwang 10+ year member]

I have an arc 4150cxlr amp I'm thinking about selling to get a ppi pc650 6 channel amp. I heard the ppi isn't great for tweets but I'm not quite sure. Anyone know much about the pc650 amps? I believe they are of the 1998-2000 era. Seem to be pretty solid amps but not sure what they're worth...Some guy is selling one for $275 locally. Thanks.

Here is a review comment I found somewhere on the net:"A six channel amp has only 2 inputs: front and rear channel pairs have highpass XO only. Marked 20-5000 HZ, it's very detailed in subbass, yet for the highs the fixed XO frequencies have strange, wide gaps - 2.8k; 4.5k; 4.8k; 5k. For driving tweeters I'd like to see more definition in 3-5k range (otherwise why go to 5k at all?)."

My alternative is to get a 4050xxk amp for $220. May seem like a downgrade to some, but the thing is I have a white cxlr so it doesn't match my setup. I know looks aren't everything but I wanted to match my memphis mcd2500 with either dark chrome from ppi or black from arc.

Thanks for the help guys.

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[drwang 10+ year member]

bump for help and suggestions