[Adamastor]

Hi, I need advice on choosing an amplifier for some speakers in a helmet.
I'm running a contest where I need the contestant riding a high-speed motorcycle (with a helmet) to hear some questions.
I've already tried in-ears and various solutions, but for various reasons I really need speakers installed inside the helmet.
The problem is the low volume.
The sound is played from a miniature sandisk mp3 player (also installed on the helmet) and I've tried several speakers and the best (loudest) were 40mm 8ohm speakers (they are thin enough to fit inside the helmet)
To amplify the volume of the mp3 player I connected a Fiio A1, and although the contestant can already hear almost everything at 200km/h with the helmet on, I need to increase the volume even more.
I know the speakers are capable of louder sound because I plugged them into my JDS Lab O2 desktop amp and they sound louder.
I need recommendations for a small portable amplifier that has more amplification (output power) than the Fiio A1 (without DAC, just AMP, 3,5mm jack in and out).
Sound quality is not important here, only the volume is important, so that the contestant hears the questions clearly.
Thanks

 

[msing539]

What speakers are you using? JBL makes the Cardo, for example.

 

[Adamastor]

What speakers are you using? JBL makes the Cardo, for example.

I tried the JBL Cardo, some Superlux headphones drivers and this Visaton K 40 - 8 Ohm speakers (this K40 dont sound as good as the others but they are louder).
The problem is that with Fiio A1 amp i dont have a much louder sound.
Need something with more power.
Any advice?
Thanks

 

[msing539]

Maybe the iFi xCan... if you want something cheaper for this purpose, maybe this:

https://www.amazon.com/Neoteck-Headphone-Amplifier-Rechargeble-Computers/dp/B01MS22YWV

No personal experience with either. Just some things for you to research further.