DJ? anyone? can I hook up a 35ohm .5watt speaker to the speaker points on the ez-b v4?

I can't say for certain but, I'm guessing that you could. If the EZB can't push the speaker you can always add a small amp.

It's the weekend, you'll have to wait for Jeremie to return to work on Monday and he can answer your question. I'm guessing you will need an additional amp but not certain on that one yet

Thanks dj. Will see tomorrow...

Hello? Anyone able to give me an answer?

Hi @Technopro,

Sorry to leave you hanging it's been a busy couple days for me.

The speaker we use with the EZ-Bv4 is an 8ohm 0.5W speaker, the on-board audio amplifier can do up to 0.3W.

The answer to your question is Yes, you could definitely remove the installed speaker and substitute it for your 35ohm 0.5W speaker soldered to the external speaker port but I'm afraid that you might have quite a bit of a lower volume coming out since the 35ohm speaker is so high in resistance (lower power output). I guess if the cone of the speaker was fairly large you might be able to get comparable volume but I'm not certain of it.

There's a solder point on the board that you could use to tap off the audio output from the chip and run it into an external audio amplifier like DJ mentioned if you'd like to get more than 0.3W output. You could also grab the audio from the speaker port and run it into an amplifier to get even more amplification but I wouldn't recommend it as you would probably see more distortion than you'd like.

@technopro Are you sure of the specs on that speaker? Every speaker I have ever owned has been either 4 or 8 ohms. The wattage requirements varied by speaker size, but the resistance was very consistent across all sizes and brands (95% were 8 ohm).

Alan

Alan, The exact speaks on the speaker are 32ohm .5W.

Hmmm. well, is there any way to move the onboard speaker? and how big is it?