SDS 200 Speaker Impedence
- Thread starter garys
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I believe it is a headphone / earphone jack - it doesn't provide enough power to drive a speaker adequately.
The specs label it as a 'Speaker Jack' on the back of the SDS-200. Uniden's speakers are 8 ohms, so I'd say it would be a good chance the jack is also 8 ohms. Checking the manual and although it mentions using an external speaker, there is no mention of the impedance.
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I should stop replying to boards after midnight....
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Are there any other kind?
You two are acting like polite Canadians!
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No, eh?
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The specs label it as a 'Speaker Jack' on the back of the SDS-200. Uniden's speakers are 8 ohms, so I'd say it would be a good chance the jack is also 8 ohms. Checking the manual and although it mentions using an external speaker, there is no mention of the impedance.
I did a Search of this site using 32 ohm as my key words & found that UpMan stated that ALL Uniden scanners have 2-32 Ohm headphone jack impedance.
So, your assumption of 8 ohms is in this range & is correct.
Someone might try searching using the key words "Uniden speaker impedance"
Most speaker amplifier chips do support 2 to 32 ohm loads.
"UpMan stated that ALL Uniden scanners have 2-32 Ohm headphone jack impedance."
Maybe .. UpMan meant that the speaker jack should drive a 2 to 32 ohm speaker.
Ear phone jacks have a series resistor to limit the output to something that will not blow you ears off.
So Speaker and Headphone jacks are different due to limiting the earphone jack output.
"UpMan stated that ALL Uniden scanners have 2-32 Ohm headphone jack impedance."
Maybe .. UpMan meant that the speaker jack should drive a 2 to 32 ohm speaker.
Ear phone jacks have a series resistor to limit the output to something that will not blow you ears off.
So Speaker and Headphone jacks are different due to limiting the earphone jack output.
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I'll add - I have a couple very cheap small unknown impedance speakers I bought at Universal years ago - the 536, 996p2,870, and the SDS100 all sound the same through them.
I have SDS100 and recently picked up Inland Pro Sound 2000 amplified stereo speakers for PC use. Any reason why I WOULD NOT use the Pro Sound 2000 and plug into the ear phone jack of the SDS100? I could not find impedance specs on the Inland Pro2000.
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dfw1193
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Just a note there are no specifications page in the sds200 manual just a page that lists features, not even detail on audio output power.
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