Can a speaker damage an amplification transformer?
Can a speaker damage an amplification transformer?
On a valve amplifier, if the speaker presents too low a load (near short circuit) or too high a load (equivalent to no circuit) then the output transformer is at risk. Better valve amplifiers, like Marshalls, allowed you to switch the impedance on the amplifier to match the speakers, and also had fuses to protect the output transformer.
Why are loudspeakers bad for an amplifier?
Everyone has already explained one of the reasons loudspeakers can damage an amplifier (impedance mismatch). But let us assume you already have a sound system with speakers with the correct impedance. There is another way speakers can damage the amplifier. And it usually starts between the listener’s chair and the amplifier.
Can a power supply be replaced on an amplifier?
You seem to have a good power supply, which is also good news. The only issue is if the component that failed is custom and unavailable for some reason, but almost all can be replaced directly. Even the bias voltages and “adjustments” can be figured out from the good channel. So if the amp was one you liked and hoped to continue using, go for it.
How much is repairing an amplifier likely to cost?
PA amplifiers such as the DAP HP series cost around 300 euros for a 2 x 1000 W version. QSC and Crown XTI amps cost between three to five times more for a comparable power spec. Are they then really so much better?
Is it possible to repair a car amplifier?
It’s sometimes VERY difficult to find a bridge and applying power when there is a bridge can cause far more damage to the amp than there originally was. <<< Take this seriously. If you need to repair a connection, add new solder. Desolder completely and then resolder the connection. Do NOT blindly replace perfectly good parts.
How is an amplifier repaired at the AMP lab?
If you want your amplifier repaired promptly, be sure to follow instructions and include repair slips and repair numbers. – Every amplifier we repair goes through a rigorous stress testing protocol before we ship it out.
Is it possible to replace capacitors in an amplifier?
It’s virtually impossible to replace the capacitors in an amp and get better performance. Except for the caps that were poor quality and leak (causing corrosion and board damage), or those that are legitimately swollen/vented, the caps are likely perfectly fine. Most amplifiers have switching power supplies.
How to repair TAC integrated stereo power amplifier no sound?
A customer of mine brought to me the TAC Integrated Stereo Power Amplifier With the Model of AV-355 for repair. The complaint was no sound but have power. Usually the first thing I do was to connect a speaker at the output jack to see if the sound really not present. Another test is to check the output DC voltage at the speaker output jack.
