Chip Amps for Record Player

[joeldom]

Hello,
I was wondering, what amp board should I use with a record player?
Do I need also a pre-amp?

LM1875T Dual Channal 30W 30W 2 0 Stereo Audio Power Amplifier Board Module | eBay
Will this work? If not, what budget pre-amp should I get to use with this amp board?

Thanks

 

[Mihkus]

Oh woaw! LM1875T ... I know 1876T exists but this...?
It should be more like 1875F (FAKE) But absolutely I might even work.
It mainly depends on the recordplayers output voltage. If its near 2V RMS it should be fine. But I really havent seen any that has it so high. Then yes, you do need a preamp

 

[joeldom]

Oh woaw! LM1875T ... I know 1876T exists but this...?
It should be more like 1875F (FAKE) But absolutely I might even work.
It mainly depends on the recordplayers output voltage. If its near 2V RMS it should be fine. But I really havent seen any that has it so high. Then yes, you do need a preamp

Thanks.
What pre-amp board do you recommend?

 

[Arty]

i'm not sure you need pre-amp.
if it ain't as loud as it should be, you can increase the gain .

so for now just build the reference design,
try it.
then try it with your... say computer as a source.
if it louder on your computer than on the record player, then adjust the gain setting resistors a bit. you can download the datasheet of the chip, gain calculation is found within it.

 

[tomchr]

Oh woaw! LM1875T ... I know 1876T exists but this...?
It should be more like 1875F (FAKE) But absolutely I might even work.

Bogus! The LM1875T is made by TI. You can convince yourself of this pretty easily by looking at the data sheet and product page available here: LM1875 | Mid/High-Power Class D Amplifiers | Audio | Description & parametrics

Now, whether the eBay kit comes with a real or a fake LM1875 is anybody's guess. If, on the other hand, you buy the parts from the TI distributors (Mouser, Digikey, Newark, et al.) you're 99.9999999 % certain that you'll get a real part.

The LM1875 is a fine little mid-power IC amplifier. Nothing wrong with it.

To use any power amp with a record player (aka turntable), you'll need a RIAA preamp (aka phono preamp).

Tom

 

[AndrewT]

Hello,
I was wondering, what amp board should I use with a record player?
Do I need also a pre-amp?

LM1875T Dual Channal 30W 30W 2 0 Stereo Audio Power Amplifier Board Module | eBay
Will this work? If not, what budget pre-amp should I get to use with this amp board?

Thanks

I would not recommend an amplifier from China.

Too many turn out to be fakes and/or using fake components.

 

[mscrgn]

30w i dont think that this amplifier could give 30watt per channel better tda 7294

 

[Arty]

30w i dont think that this amplifier could give 30watt per channel better tda 7294

30 watt is plenty. even 15 is plenty.
2x10 watt is far more than enough for a livingroom even if you like to listen to loud music. pretty loud music.

tda7294 is by far an overkill for 99% of home applications.
but, nothing stopping anyone from going fo it