View Full Version : Would RF T400-4 get enough power for Boston Pro 60’s?
quick01
11-22-2007, 10:24 AM
I already have the Rockford Fosgate T400-4 installed in my 05' Ford Focus. RF lists the amp at 60Wx4, but the birth sheet says 75Wx4 @4 ohms. I've read the Pro 60's sound better with a lot of power. How would the 60's sound mated to that amp?
07ramjam
11-22-2007, 11:28 AM
Im sure that would do,but to really wake them up Id run at least twice that.Ive read about people running 250 per side to them without a problem.
One thing Ive learned about car audio is that there is no such a thing as too much power.You just need to know how to set it up.
whitemax
11-22-2007, 11:38 AM
I had the T400-4 and thought it was a nice amp. Try it out, if you don't feel it's enough juice why not bridge it? It will give you a little more than 200 watts RMS per side.
bamaboy
11-22-2007, 11:42 AM
remember the pros are 3ohm, i think that 75x4 is 2ohms correct?
///M5
11-22-2007, 11:48 AM
That is subjective, luckily there is a simple answer plug them in and see.
quick01
11-22-2007, 12:06 PM
RF Performance Verification Certificate states:
75 x 4 @ 4 Ohms
125 x 4 @ 2 Ohms
250 x 2 @ 4 Ohms
How accurate are these "Birth Sheets" anyway?
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"That is subjective, luckily there is a simple answer plug them in and see."
I want to know before I order them.
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bamaboy: Will it be six in a row Saturday night? ;)
whitemax
11-22-2007, 12:17 PM
I think the amp will produce those #'s.
quick01
11-22-2007, 12:21 PM
I think the amp will produce those #'s.
Ok....so that would means approx. 100W@3 ohms to the mids and 75W@4 ohms to the tweeters. Right?
The tweets don't drop to 3 ohms also, do they?
zeuolaxxx
11-22-2007, 12:25 PM
try bridge it!
quick01
11-22-2007, 12:34 PM
try bridge it!
*CAUTION!* (noob question)
Bridge and just amp the mid's or both? Please explain.
IgnoreMe
11-22-2007, 01:33 PM
my pro's definitly needed more power than that.
running gains set at 300wrms per side using -3db 1000hz test tone...
bamaboy
11-22-2007, 06:58 PM
yea i got an orion 8002 on mine that does around 300 per side
i think it will be 6 in a row, or at least im hoping
quick01
11-23-2007, 07:19 AM
i think it will be 6 in a row, or at least im hoping
Sorry, my mistake! Thought you were a "Bamer". Your user threw me off. Let's hope Cox has a good game, sure would help!
quick01
11-26-2007, 08:57 AM
Ok...to bridge the Pro60's I should use the provided "Signal Bridge" connector and wire them "Crossover - Single Input" as described in the sparse manual? Right?