2. amps-preamps
  3. 1335725164

I think my speakers are killing my amps.

I have VMPS FF3 SRE bi-amped w outboard crossover, I have upgraded from the original single panel to the multi planar driver option.
I ran 300w Classe amp on panels but at around 95db it would go into protection. I changed to Aragon 4004 MKII 2 yrs ago that gave 400w and thought I was good till yesterday but while playing pretty loud maybe 100db the amp started making these loud clicking sounds the one channel was just dead. Now I wonder if a mistake was made in planar drivers wiring or in updated crossover. Its possible amp finally bit it after some years of great service but its always the same speaker and it has sent multiple amps into fits. I think maybe its down to 1ohm brutal swing or something but am not smart in that area of electronics. Any ideas would be great, thanks. BTW Classe is in service now but not at loud levels.
chadnliz
chadnliz OP
3,736 posts
 
Hmmm, great info and food for thought. THANKS!
I am going to send the planar line array to VMPS for inspection, I talked to Brian yesterday. My largest concern is it always seams to be right channel thus a inspection of the series/parellel or reverse (I get them confused) is a culprit. 6drivers per side are wired in pairs then those three sets are joined. After that is looked into I will look at my best bet for the amp repair or to replace. Again thanks
atmasphere's avatar
atmasphere
11,807 posts
 
The VMPS is not particularly capacitive. Ribbons in general tend to have a fairly resistive quality so other than impedance they tend to be easy loads.
hifigeek1
770 posts
 
It possible a capacitor may have arced. I have seen situations where the speaker was damaged by high frequency oscillation before the amp failed. Given its age, it sounds like the amp needs some tlc.
mcintech
128 posts
 
Did you measure the fuses with an ohmmeter or did you just visually inspect them? Had several fuses over the years that appeared to have intact elements but were wide open electrically.
atmasphere's avatar
atmasphere
11,807 posts
 
Mcintech makes an excellent point! Check your fuses with a DVM.
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