Hi there, been snooping around the forum for a while now, but this is my first post so please be gentle.
I'm looking to start my first audio project, which is to build a sound system to go inside/on a chair. I bought a gaming chair and needless to say the 2x2.5W + 1x4.5W rms system just didn't cut the mustard. So I've been reading everything up, pricing, comparing datasheets and some of the class D/T amp's appeared to be perfect for the job given their generally smaller size and higher efficiency (For example a TA2024 based amp for satellites and TDA8920 BTH for a sub).
However I've come accross a few referances to class D/T's causing severe radio interference, in some cases completely blocking out any kind of reception to FM/AM radio stations. Is this an inherant problem with this class?.
The reason I ask is because I plan to make the system wireless using some FM transmitters/recievers, and the recievers will either be housed with or by the amps so this would be a problem. I am planning to buy allready assembled boards or kits to solder (i.e not designing it myself, but I will make minor modifications and improve some components), so I'm not expecting to have well designed boards, which is where I would expect this kind of interference to come from.
So, if this is a common problem is there an easy way to shield them/filter it/fix it at the source or would you advise me to just stick to chip-amps?
Many thanks for any and all advice you can give me.
Karl
I'm looking to start my first audio project, which is to build a sound system to go inside/on a chair. I bought a gaming chair and needless to say the 2x2.5W + 1x4.5W rms system just didn't cut the mustard. So I've been reading everything up, pricing, comparing datasheets and some of the class D/T amp's appeared to be perfect for the job given their generally smaller size and higher efficiency (For example a TA2024 based amp for satellites and TDA8920 BTH for a sub).
However I've come accross a few referances to class D/T's causing severe radio interference, in some cases completely blocking out any kind of reception to FM/AM radio stations. Is this an inherant problem with this class?.
The reason I ask is because I plan to make the system wireless using some FM transmitters/recievers, and the recievers will either be housed with or by the amps so this would be a problem. I am planning to buy allready assembled boards or kits to solder (i.e not designing it myself, but I will make minor modifications and improve some components), so I'm not expecting to have well designed boards, which is where I would expect this kind of interference to come from.
So, if this is a common problem is there an easy way to shield them/filter it/fix it at the source or would you advise me to just stick to chip-amps?
Many thanks for any and all advice you can give me.
Karl
Thanks for the response, I should have been more specific I want to make a 5.1 system so there will be 4-5 amps, with 3 stereo fm recievers near by. As its for a chair, I'm on a small budget so the boards will be cheap imports and thus probably not well designed, hence why I'm asking if this is a common issue with cheap class D's?
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