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Help with HSN4000A External Speaker modification

Posted: Thu Feb 18, 2016 6:49 pm
by qc91
Hi, I wanted to see if I can modify an HSN4000A External Speaker to work with my Uniden Bearcat BCD536HP? here are the specs for the BCD536HP Audio Output

Here is link for the BCD536HP https://www.uniden.com/scanner/id-BCD53 ... with_Wi-Fi

Audio Output Power: Internal Speaker - 360mW nominal
(24ohm)


Headphone (L-ch) 4mW nominal

Audio Output Power : 5W Max., 8 ohm Load

1/8-inch (3.5-mm) mini-plug


Earphone Warning
You can use an optional 32Ω stereo headset or earphone with your scanner. Use of an incorrect
earphone or headset might be potentially hazardous to your hearing. The output of the phone jack
is monaural, but you will hear it in both headphones of a stereo headset.
Set the volume to a comfortable audio level coming from the speaker before plugging in the
earphone or headset. Otherwise, you might experience some discomfort or possible hearing
damage if the volume suddenly becomes too loud because of the volume control or squelch
control setting. This might be particularly true of the type of earphone that is placed in the ear
canal

Thanks

Re: Help with HSN4000A External Speaker modification

Posted: Fri Feb 19, 2016 8:44 am
by N4KVE
Just get the matching plug, [1/8-inch (3.5-mm) mini-plug] & attach it to the speaker wire. Plug it in, & you're ready to go. That's all. GARY

Re: Help with HSN4000A External Speaker modification

Posted: Fri Feb 19, 2016 10:12 am
by qc91
Thanks but it looks like the HSN4000A has 2 wire's and can you confirm that the HSN4000A none amplified doe not need any 12v?

Re: Help with HSN4000A External Speaker modification

Posted: Fri Feb 19, 2016 5:53 pm
by qc91
Hi, thanks but there 2 wires is one for power?

Re: Help with HSN4000A External Speaker modification

Posted: Fri Feb 19, 2016 9:39 pm
by N4KVE
SERIOUSLY???

Re: Help with HSN4000A External Speaker modification

Posted: Fri Feb 19, 2016 10:13 pm
by qc91
YES it has 2 wires and I know some have power for amplifier which can damage the receiver here is a photo http://www.ebay.com/itm/Motorola-Extern ... 1774512398 and if look at this link the 3.5 mm comes with 3 wires https://www.adafruit.com/products/1700

Re: Help with HSN4000A External Speaker modification

Posted: Fri Feb 19, 2016 10:29 pm
by qc91
My question is regarding damaging the receiver to look at this linkhttp://forums.radioreference.com/uniden-tech-support/284238-bcd536hp-external-speaker-connection-considerations-precautions-2.html

Re: Help with HSN4000A External Speaker modification

Posted: Tue Feb 23, 2016 11:45 am
by escomm
No, the Motorola speaker does not external power, and there is no polarity on the Motorola speaker. I don't see why you can't just wire it up like Gary said. I just put an RSN4001 speaker on a Uniden scanner for a tow truck customer of mine and it works great.

Re: Help with HSN4000A External Speaker modification

Posted: Tue Feb 23, 2016 12:06 pm
by qc91
HI, Thanks I was concerned about this topic http://forums.radioreference.com/uniden ... tions.html

Do you have schematic for the HSN4000A? and do you know if is non amplified? looking the specs on the 536HP Audio Output Power : 5W Max., 8 ohm Load

thnaks for all the help

Re: Help with HSN4000A External Speaker modification

Posted: Tue Feb 23, 2016 7:26 pm
by Bill_G
Oh goodness. Google must be broken in your part of the internet. The HSN4000 is just an 8 ohm speaker. Go to Radio Shack. Buy the correct plug. Solder it on. Plug it in. Enjoy

Re: Help with HSN4000A External Speaker modification

Posted: Tue Feb 23, 2016 9:08 pm
by qc91
Hi Thank you "Google works just great in my part of the internet" . did you actually look at the link I posted ??