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by **Chris from Washington** » Tue Mar 15, 2011 6:40 pm

Yes what we are trying to say is you have a high pass that is set to one frequency cutoff, and a lowpass that is set to only 1 cutoff frequency. You can't adjust it at all. So if you wanted your subs cut off at 80 hz, you can't do it.

That was the drawback to those Fosgate amps, the next gen came with the crossover built in with a knob where you can adjust the frequency you wanted. I think Fosgate thought people would rush out and buy the cards, and they could make more money off their customers or something. Not sure why they went that route.

I still think you got a good deal though.

by **casemods** » Mon Mar 14, 2011 8:04 pm

loudwagon15s wrote:no they made cards you could buy but they didnt come with the amp, so your stuck at 100 hz unless you can find another card, which prolly isnt easy.

but I have the high pass and low pass cards. Didn't you look at the picture? the HP And LP are in one card.

by **loudwagon15s** » Mon Mar 14, 2011 8:02 pm

no they made cards you could buy but they didnt come with the amp, so your stuck at 100 hz unless you can find another card, which prolly isnt easy.

by **casemods** » Mon Mar 14, 2011 7:05 pm

Chris from Washington wrote:Those are the default cards it came with.
what I meant was, those are your only options for tuning. You really can't adjust it more than those preset frequencies.

oh you mean they made adjustable cards?

by **Chris from Washington** » Mon Mar 14, 2011 7:04 pm

Those are the default cards it came with.
what I meant was, those are your only options for tuning. You really can't adjust it more than those preset frequencies.

by **casemods** » Mon Mar 14, 2011 6:36 pm

Chris from Washington wrote:You got the amp and the box for $40? Ya that's an OK deal.
That amp was made around the early/mid 90's or so. I had the smaller version of it it (4040).
the only thing I hated about them was the crossovers were controlled by these 'cards', not really adjustable unless you bought another card ( I think you could make your own, using resistors, but I might be thinking of something else).

It says "all the crossover cards in this amp have been factory installed in the "FULL RANGE" configuration. They can be reconfigured to produce a 100Hz LOW PASS or HIGH PASS according to the following instructions"
Apparently, the LP and HP are on one card
Just pulled the front speaker card out, and it's the LP/HP (HP was active)
So I guess I lucked out!
Is it worth more with these cards?

by **Chris from Washington** » Mon Mar 14, 2011 6:14 pm

You got the amp and the box for $40? Ya that's an OK deal.
That amp was made around the early/mid 90's or so. I had the smaller version of it it (4040).

the only thing I hated about them was the crossovers were controlled by these 'cards', not really adjustable unless you bought another card ( I think you could make your own, using resistors, but I might be thinking of something else).

by **casemods** » Mon Mar 14, 2011 4:46 pm

by **casemods** » Mon Mar 14, 2011 4:27 pm

Ok so it's a Rockford Fosgate punch 4080dsm with no end caps.
1. what is that worth minimum/max in 100% working order.
2. Is $40 for the amp plus a sealed 10" Q-logic box a good deal?
The amp sounds just as clean and clear and under control (lol) as my sony xm-4045, but now I will have 4 channels

by **casemods** » Sun Mar 13, 2011 5:21 pm

loudwagon15s wrote:Bring lots of $5's and bargain with him if you don't think its worth 40, hell even if you do, throw some pics up after you install it, what is it going to be powering

2 4x6" and 2 6.5" 2-ways, db561 and db461 polk marine rated

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Rockford fosgate 300w (40w rms x4) amp - what's it worth?

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