Hi everyone,
I Have had my hands on some M-AUDIO EX66 studio monitors for a while and i was recently listening to music and out of a sudden without any weird noise or anything like that the speakers were only playing mid and low frequencies, I tested the speakers on a tone generator 9000hz was the max that it could play and 10000hz only if i had the speakers loud enough
I Have been searching everywhere for replacement parts and i cant seem to find any, Can anyone suggest any tweeters that are as good as them or any solution to my probelm in general?
Any help would appreciated.
Speakers Specifications:
I Have had my hands on some M-AUDIO EX66 studio monitors for a while and i was recently listening to music and out of a sudden without any weird noise or anything like that the speakers were only playing mid and low frequencies, I tested the speakers on a tone generator 9000hz was the max that it could play and 10000hz only if i had the speakers loud enough
I Have been searching everywhere for replacement parts and i cant seem to find any, Can anyone suggest any tweeters that are as good as them or any solution to my probelm in general?
Any help would appreciated.
Speakers Specifications:
Enough active protections are listed. Nothing prevented the burn out(?). Sudden HF voice coils destruction in both channels is weird.
For the shake of certainty also check with an Ohm meter if the tweeters are burned indeed reading open circuit instead of 3-6Ω.
Just in case the tweeters are still good but something in the HF amps had actually failed or tripped.
For the shake of certainty also check with an Ohm meter if the tweeters are burned indeed reading open circuit instead of 3-6Ω.
Just in case the tweeters are still good but something in the HF amps had actually failed or tripped.
I was just listening to music normally and in 1 split seconds the speakers were only playing lows and mids
By the way M-Audio doesn't sell replacement tweeter diaphragms? Did you contact their info address?
I've had people say similar things.
One was faulty xlr cables, another a dead turn table cartridge, another broken tonearm lead wires.
Stunned the heck out of me.
So maybe it's not the tweeters at all.
What was the gear you were using ?
Do you have any other gear you can use to test with ?
One was faulty xlr cables, another a dead turn table cartridge, another broken tonearm lead wires.
Stunned the heck out of me.
So maybe it's not the tweeters at all.
What was the gear you were using ?
Do you have any other gear you can use to test with ?
I was using a behringer uphoria umc22 and no i dont have any other gear but i have bought other cables and all that so thats not an issue
and the speakers are pretty old so i dont think they sell parts for them anymore
and the speakers are pretty old so i dont think they sell parts for them anymore
Your tweeters are fine. It is basically impossible to instantly fry any driver silently. Way more likely to have high frequency power amp failure, but two amps failing at the same time is also unlikely.
Press your ear to the tweeter waveguide. Is there any hiss from the tweeter when monitors are powered on and disconnected from source? Faint click or pop when monitors turned on and off?
Press your ear to the tweeter waveguide. Is there any hiss from the tweeter when monitors are powered on and disconnected from source? Faint click or pop when monitors turned on and off?
I had a Samson amp fry 2-K55V and 2-APT150 w/o any sound. (woofers with heavier coils and higher Le suvived) Also had an accident with a Hafler XL280 oscillate in the hearing ranger on Audax bullet tweeters - like having a knife to the eardrum for pain - yet tweeters somehow survived. (T35/K77 would have popped)
I built a clone of the Plastic Tiger back in 1973, Burned out the Tweeters in my Radio Shack speakers a bunch of times before I figured out it was oscillating and required a compensation cap. Lucky for me Radio Shack kept honoring the warranty. ;-)
I also burned out a bunch of output transistors during parties because I never thermally connected the output bias diodes to the heatsink. :-(
I later bought a Southwest Tech power amp kit and it blew out every party as well...
I also burned out a bunch of output transistors during parties because I never thermally connected the output bias diodes to the heatsink. :-(
I later bought a Southwest Tech power amp kit and it blew out every party as well...
Attachments
Remember, it's an active monitor with a PWM chip amplifier. It doesn't play by the same rules as your typical passive system of the yesteryear.
Analog input (which is immediately digitized), EQ and crossover implemented in Texas Instruments TAS3004 , digital input goes through AKM AK4384 DAC (to be sent to TAS33004 analog input again), from the TAS3004 signal is sent to a TDA8927 2x50 W class D power amplifier chip. All controlled by Atmega MC.
