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Old 20th September 2007, 09:26 PM   #1
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Default faulty driver?

Hello,

I have one Fostex FF225k that could be faulty. The speaker sound distorted. I tried everything with wiring. If you have any ideas..... otherwise I will change the speaker.

thank you

PS
When I turn on the amplifier the speaker emit a low tone bump and has a big cone excursion. The other speaker doesn't have that excursion, but it has the normal middle pitched bump( so normal).
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Old 20th September 2007, 09:30 PM   #2
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Sounds like it's shot to me.
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Old 20th September 2007, 09:35 PM   #3
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Hi testarossa2k,

You have tested to swap channels and tried with another amplifier?
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Old 20th September 2007, 09:41 PM   #4
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it may be the amp, the speaker or the source. not too long ago i ordered a replacement 127e because i thought it was blown. The new driver arrived and had the same problem (similar to what you describe). Turned out to be one channel on the CD player.

Check the driver on the side that works and see if it still sounds busted. If its ok, then it's the amp or the source.

Good luck!

Godzilla
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Old 20th September 2007, 09:43 PM   #5
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yes I have swapped channel: same result.....
I also swapped cable
I inverted the phase also

I think changing amplifier will not solve the problem but I'm going to try anyway....
It's shame the ff225k is a fantastic driver when it work...
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Old 20th September 2007, 09:45 PM   #6
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I will try to use the other channel of the player...... great idea..
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Old 20th September 2007, 09:50 PM   #7
AKN is offline AKN  Sweden
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Quote:
yes I have swapped channel: same result.....
Exchanged speaker cables L > R and R > L in either speaker or amplifier end and still problem in the same speaker?
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Old 20th September 2007, 09:54 PM   #8
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I used the cable of the Left speaker, but the problem is still there.
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Old 20th September 2007, 10:51 PM   #9
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Curses. It didn't sound good, from your initial comments. If you've tried all the above, then it sounds like the driver's duff.
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Old 20th September 2007, 11:11 PM   #10
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I tried it with onther amplifier, the t-amp. the same situation. I tried also with the same channel of the cd player that works well with other speaker.
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