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KEF Audio Cresta 2 Speaker Questions & Answers
I have just bought an amplifier for some old Kef
It's not clear how the speakers sound with a different amp or if other speakers sound tinny with this amp. What's the source you're listening to? If it's Phono that opens up a different can of worms.
Can you certify that the electronics is faultless in this scenario? More info on that piece may be helpful.
The woofers could both be blown but I doubt it. Tweeters usally die if a speaker is overloaded. You should be able to see or feel the woofers vibrating in the presence of bass.
How to test your speaker
Units going into auto protect are usally due to open or dead short conditions to keep the system protected from blowing the final amps. based on what you suggested I woould test or change out the cables 1st.
Measuring mA with a DMM
The most obvious solution to your problem is that you may have the meter simply connected backwards. To make life easy, Groovetubes sells a thing called a bias probe that makes biasing tube amps a breeze.
Kef Q Series iQ1 problem
You may have broken the cross over, which is fixable by an service agent, or you may have damaged the voice coil in the mid driver. you can check this by sofly pushing the main driver in, making sure that you done push the cone, if there is a lot of resistance then you have damaged the voice coil, and you will need to replace the driver.
Subwoofer cuts out kef (2010)
a capacitor could be overheating and cutting out.then,when it cools you get sound again.this will go on and on until you take it to a tech to get fixed
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