home use of a car amplifier!

Question

Hello,
I have a car amplifier at home, the PCH-2500FX 300W, and I want to make it usable at home.
I bought a transformer that converts 220V to 12V 3 amps. It worked, but not well; when I increase the volume, the sound gets unclear and has interruptions.
I suspect that the problem is related to the amperage, which needs to be more than 3 amps.
I also have 2 speakers, each 150W.
I need help!! I want to listen to music!! :d:d lol
Thanks in advance!!

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Char Snipeur · Accepted Answer

Hi.
A lot of nonsense in the responses...
An amplifier rated at 300WRMS output means it is capable of delivering 300W to speakers. At 12V, to provide 300W, you need 25 amps. Considering that amplifiers have a rather poor efficiency, let's say 50%. You need a power supply that can provide 50 amps to use the amplifier at its full capacity. 3 amps translates to 36 W of consumption, which is roughly 18 W RMS for the speakers.
--
True submission is when slaves worry about the price of cotton.
Char Snipeur

hardwaremaster · Answer

J'ai essayé cette méthode mais comme vous avez dit, c'est l'ampérage qui est mal changé dans votre transformateur.

Anouss · Answer

Hello!! Thank you for the response, that's nice!! But tell me the details of the transformer I need! Thanks

Anouss · Answer

thank you again skyrocket23
unfortunately the problem exists even for a single baf.
another question: does the problem come from the amperage, meaning I need a transformer that outputs
12v and more than 3 amp maybe 4-5 ----10 if it exists.
thank you very much

Anouss · Answer

Okay, following your advice to avoid damaging the amplifier, I will consult a technician and check with the store
where I bought the transformer.
Thank you very much for your help, and good luck in life.

.

fruity · Answer

The impedance is not the same between the two systems. The car amplifier works at 8 ohms while your home system is at 4 ohms.

benoit · Answer

A 500W PC power supply can provide enough power; to get 12V, you need to connect between a yellow wire (+12) and a black wire (ground).

You can find these two wires on the connectors that plug into the CD drives.

It has been working this way for me for several years, and it provides a lot of power...

florent · Answer

I have the same problem, my amp won't turn on.. PC power supply is good, connection..

energyst_en_herbe972 · Answer

Hello
It requires more intensity because when the amplifier draws power, the "remote" relay releases because there isn't enough current to keep the "remote" relay locked, resulting in sound cutting out or the amplifier turning off at high volume or upon startup for the more powerful ones (the "remote" controls the power circuit of the amplifier; if it releases, the sound cuts out, see an expert for reliable information)

It works very well with a PC power supply for this:
Gather to facilitate the passage of high current the yellow wires together on the + side and the black wires together on the - "gnd" side

The "remote" is powered with a small wire to the + battery

Home use of a car amplifier!

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