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Main => Raspberry Pi & Dev Board => Topic started by: gezy on October 09, 2013, 09:04:14 am

Title: Raspberry Pi and Speakers 5W
Post by: gezy on October 09, 2013, 09:04:14 am

Hi guys,
I will need your help for the audio of my arcade cabinet.
I have a Raspberry Pi with Sanwa buttons connected with KADE.

So now, I want to connect 2 speakers, but I'm not sure how.
Speakers : http://www.arcadeshop.de/Audio-Video-Speaker-5-Watt_323.html (http://www.arcadeshop.de/Audio-Video-Speaker-5-Watt_323.html)

My understanding is that I have to use an amplifier for that, because I can't connect directly to the Raspberry. Am I right ?
Audio amplifier : http://www.arcadeshop.de/Audio-Video-Audio-Amplifier-stereo_767.html (http://www.arcadeshop.de/Audio-Video-Audio-Amplifier-stereo_767.html)

Raspberry Pi -> Audio Amplifier -> Speakers

But I think I will need a power supply for the amplifier...
This one ? : http://www.arcadeshop.de/Power-Supply-Power-Supply-130W-5/12/-5V_338.html (http://www.arcadeshop.de/Power-Supply-Power-Supply-130W-5/12/-5V_338.html)

It seems very expensive and immoderate for these little tow speakers...  :o
At least for the power supply.

Thanks for any advice  ;D

Title: Re: Raspberry Pi and Speakers 5W
Post by: Rick on October 09, 2013, 09:14:08 am

Check eBay for the "Lepai" mini amplifier. Works a charm.

Title: Re: Raspberry Pi and Speakers 5W
Post by: gezy on October 09, 2013, 09:17:08 am

Thanks,
Like this one ?

http://www.ebay.fr/itm/Lepai-TRIPATH-TA2020A-Amp-Mini-Hi-Fi-Audio-Amplifier-Power-adapter-/181058558974?pt=FR_JG_Auto_Pi%C3%A8ces_Amplificateurs_Test&hash=item2a27ee5bfe (http://www.ebay.fr/itm/Lepai-TRIPATH-TA2020A-Amp-Mini-Hi-Fi-Audio-Amplifier-Power-adapter-/181058558974?pt=FR_JG_Auto_Pi%C3%A8ces_Amplificateurs_Test&hash=item2a27ee5bfe)

Title: Re: Re: Raspberry Pi and Speakers 5W
Post by: Rick on October 09, 2013, 09:18:16 am

Quote from: gezy on October 09, 2013, 09:17:08 am

Thanks,
Like this one ?

http://www.ebay.fr/itm/Lepai-TRIPATH-TA2020A-Amp-Mini-Hi-Fi-Audio-Amplifier-Power-adapter-/181058558974?pt=FR_JG_Auto_Pi%C3%A8ces_Amplificateurs_Test&hash=item2a27ee5bfe (http://www.ebay.fr/itm/Lepai-TRIPATH-TA2020A-Amp-Mini-Hi-Fi-Audio-Amplifier-Power-adapter-/181058558974?pt=FR_JG_Auto_Pi%C3%A8ces_Amplificateurs_Test&hash=item2a27ee5bfe)

Looks good! At least you got a power adapter. I didn't.

Title: Re: Raspberry Pi and Speakers 5W
Post by: gezy on October 09, 2013, 09:22:03 am

Yeah sounds good !
Many thanks  :applaud:

Title: Re: Raspberry Pi and Speakers 5W
Post by: DHTech on October 09, 2013, 09:42:39 am

You may need to change the audio output on the Pi as I think it's set to HDMI as default, you can choose one of two audio outputs on RaspberryPi using amixer command. You can use one of three modes: 0=auto, 1=analog, 2=hdmi, like this: sudo amixer cset numid=3

Title: Re: Raspberry Pi and Speakers 5W
Post by: gezy on October 09, 2013, 09:46:06 am

Quote

You may need to change the audio output on the Pi as I think it's set to HDMI as default, you can choose one of two audio outputs on RaspberryPi using amixer command. You can use one of three modes: 0=auto, 1=analog, 2=hdmi, like this: sudo amixer cset numid=3

Ok I will remember this ;)

Title: Re: Re: Raspberry Pi and Speakers 5W
Post by: VoltaTom on October 09, 2013, 11:19:10 am

Quote from: Rick on October 09, 2013, 09:18:16 am

Quote from: gezy on October 09, 2013, 09:17:08 am

Thanks,
Like this one ?

http://www.ebay.fr/itm/Lepai-TRIPATH-TA2020A-Amp-Mini-Hi-Fi-Audio-Amplifier-Power-adapter-/181058558974?pt=FR_JG_Auto_Pi%C3%A8ces_Amplificateurs_Test&hash=item2a27ee5bfe (http://www.ebay.fr/itm/Lepai-TRIPATH-TA2020A-Amp-Mini-Hi-Fi-Audio-Amplifier-Power-adapter-/181058558974?pt=FR_JG_Auto_Pi%C3%A8ces_Amplificateurs_Test&hash=item2a27ee5bfe)

Looks good! At least you got a power adapter. I didn't.

Me either, had to find the specific adapter for it (12V 2A) and couldn't find it anywhere locally.

Title: Re: Raspberry Pi and Speakers 5W
Post by: evilpotatoguy on October 09, 2013, 02:24:04 pm

Thanks for the information about the Lepai amp. I'm also using a Pi, so this may be the solution I'm looking for.