Hi, I I have a question regarding speaker ratings when using an LM386-1 with a 9 volt power source (battery) and old/vintage speakers.
Specifically, I have numerous speakers rated at 1/4 watt or .3 watts (many of them speakers from old transistor AM and/or AM/FM radios). Ohm ratings on them typically range from 3.2-8. I want to hook these up to an LM386 based guitar amplifier (basically the "Smoky Amp" circuit, or something similar.
My question is, can these speakers handle the LM386 output? The data sheet for the LM386-1 lists the power output as "VS = 6 V, RL = 8 Ω; Min: 250 mW, Typ: 325 mW."
Do you think these speakers will generally handle the power here? Or am I treading on thin ice when I'm running at 9v and, say, a 4 ohm, .3 watt speaker? Is there anything I'm missing here, or a good way to ensure I don't blow a bunch of speakers? Thanks in advance.
Specifically, I have numerous speakers rated at 1/4 watt or .3 watts (many of them speakers from old transistor AM and/or AM/FM radios). Ohm ratings on them typically range from 3.2-8. I want to hook these up to an LM386 based guitar amplifier (basically the "Smoky Amp" circuit, or something similar.
My question is, can these speakers handle the LM386 output? The data sheet for the LM386-1 lists the power output as "VS = 6 V, RL = 8 Ω; Min: 250 mW, Typ: 325 mW."
Do you think these speakers will generally handle the power here? Or am I treading on thin ice when I'm running at 9v and, say, a 4 ohm, .3 watt speaker? Is there anything I'm missing here, or a good way to ensure I don't blow a bunch of speakers? Thanks in advance.