your issue is going to be the wattage and ohms. Ohms not so much as they basicly dictate the amount of battery life as a comparison. a 4 or 8 ohm will work. A 4 ohm will be louder but will absorb more battery, and 8 will not be so loud but better battery life. In small speakers the battery consumed is almost nothing so no fear there.<div>The watts of a speaker though will change dramaticly the enjoyment, As a rule you want to have your speaker handle way more watts than the sound system pumps out.</div><div> You do this for clean sound, who cares if you have 100 watts if you can't hear a dang thing because of distortion. Now those little I-pod speaker probably not a good bet as they accept 2 watts and probably have a 4 or 5 watt max impedance.</div><div>what you want is a speaker that will cover the hertz range so you get full sound, something that can handle the wattage your systems will put out ( I think they will both be in the 3 to 5 watt range ) and is small enough to fit in a Panzer IV and not take up a ton of room.</div><div>This is what I have availlable to help you and it fits the bill very very nicely in my opinion.</div><div>http://shop.immortalhobbies.com/Mini...2101212258.htm</div><div>
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