Hi all
I'm a newbie connecting a car amp, and, Youtubing my way through this, it seems to be standard practice to power an amp straight from the battery inserting an inline fuse near the battery. I have wired mine in this way, but I'm just checking this isn't exposing the amp to fluctuations, transients etc from around the battery. What protection and filtering should it have?
The amp has some inbuilt protection...
Attached is an image of the components the amp has at the power inputs...
It's got 4 SMD caps, a ferrite core inductor, plus a Varistor (S14K14)
[From datasheet: B72214S0140K101 - VRMS=14V, VDC=18V, imax=1000A, Wmax=4.0J, Pmax=0.10W]
Is this reasonable surge protection (and noise suppression) etc to run it straight from the battery? Or should there be further protection and filtering etc? I have no idea whether the vehicle this amp came from supplied it with prior filtered or regulated power. The amp is a Volvo #30752259 (PA-200) 4x50W RMS out of a circa-2006 Volvo V70.
I have an LC power supply filter unit from another car stereo if that was useful or could be the basis of another power filter/regulator.
Thanks
I'm a newbie connecting a car amp, and, Youtubing my way through this, it seems to be standard practice to power an amp straight from the battery inserting an inline fuse near the battery. I have wired mine in this way, but I'm just checking this isn't exposing the amp to fluctuations, transients etc from around the battery. What protection and filtering should it have?
The amp has some inbuilt protection...
Attached is an image of the components the amp has at the power inputs...
It's got 4 SMD caps, a ferrite core inductor, plus a Varistor (S14K14)
[From datasheet: B72214S0140K101 - VRMS=14V, VDC=18V, imax=1000A, Wmax=4.0J, Pmax=0.10W]
Is this reasonable surge protection (and noise suppression) etc to run it straight from the battery? Or should there be further protection and filtering etc? I have no idea whether the vehicle this amp came from supplied it with prior filtered or regulated power. The amp is a Volvo #30752259 (PA-200) 4x50W RMS out of a circa-2006 Volvo V70.
I have an LC power supply filter unit from another car stereo if that was useful or could be the basis of another power filter/regulator.
Thanks
Attachments
Unless you're going to be arc welding on the vehicle, spikes aren't generally a problem. The manufacturers know what to expect and build in whatever is needed to protect the amp.
