These speakers suitable for bike blaster?

[manimal347]

Well, I'm looking to put together an extremely loud yet compact bicycle stereo. I've already settled upon an 8*C cell power supply and the Lepai ta2020 amplifier. The main question now is what to use for speakers. Since bridging channels isn't an option, it's imperative they be very small. Also efficiency is critical. Yes I want to go light on the battery pack: being able to hit Burning Man volumes is an equal motivator. On other hand they needn't sound too hi-fi or hit deep notes.

I found these speakers that look pretty reasonable on paper. 94DB sensitivity, 15W handling, well-extended treble and a whizzer too. But, guess they look toocheap/pedestrian to reassure. So, few questions: probable needed box size, vintage, original application and real-world power handling?

4" Full Range Neo Magnet High Efficiency Speaker Linear | eBay

[planet10]

Cheap enuff to take a flyer on. I'd be pessimistic about the sensitivity, it is REALLY not easy to get that kind of efficiency out of a 4"driver unless it does no bass at all. And why a whizzer cone on a 4". No T/S makes it hard to design a box.

dave

[DYNABLASTERTUNERS]

uncoated papercone and rain?

[BHTX]

I 2nd Dave's comments. In fact, I'd be surprised if the actual sensitivity is even 90dB in its lower range. There's the chance it might have a slightly rising response, but it probably wouldn't be very much.