OT: Need Recommendations for Powered Speaker for KX3 (WU6R)

[Elecraft mailing list]

While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?

Thanks,
Mark/WU6R
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[Bob McGraw - K4TAX]

Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.

Bob, K4TAX


Sent from my iPhone

> On Dec 22, 2018, at 3:59 PM, Mark Wheeler via Elecraft <[hidden email]> wrote:
>
> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
>
> Thanks,
> Mark/WU6R
> ______________________________________________________________
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[Elecraft mailing list]

Bob,

Thanks for the thoughts. I’ll give that a try.

73, Mark
WU6R

Sent from my iPad

> On Dec 22, 2018, at 5:08 PM, Bob McGraw K4TAX <[hidden email]> wrote:
>
> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Dec 22, 2018, at 3:59 PM, Mark Wheeler via Elecraft <[hidden email]> wrote:
>>
>> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
>>
>> Thanks,
>> Mark/WU6R
>> ______________________________________________________________
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>
>

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[Elecraft mailing list]

My Bose Color Soundlink speaker works really well with my KX3.  No distortion, no RF even when driving the KPA500 with the KX3.


Michael Blake
[hidden email] <mailto:[hidden email]>

> On Dec 22, 2018, at 5:08 PM, Bob McGraw K4TAX <[hidden email]> wrote:
>
> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
>> On Dec 22, 2018, at 3:59 PM, Mark Wheeler via Elecraft <[hidden email] <mailto:[hidden email]>> wrote:
>>
>> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
>>
>> Thanks,
>> Mark/WU6R
>> ______________________________________________________________
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>
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[Nr4c]

I use West Mountain Radio Comm zspeakers with my K3(S) and should work fine with KX3.

Sent from my iPhone
...nr4c. bill

> On Dec 22, 2018, at 5:19 PM, Michael Blake via Elecraft <[hidden email]> wrote:
>
> My Bose Color Soundlink speaker works really well with my KX3.  No distortion, no RF even when driving the KPA500 with the KX3.
>
>
> Michael Blake
> [hidden email] <mailto:[hidden email]>
>
>
>
>
>
>
>> On Dec 22, 2018, at 5:08 PM, Bob McGraw K4TAX <[hidden email]> wrote:
>>
>> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.
>>
>> Bob, K4TAX
>>
>>
>> Sent from my iPhone
>>
>>> On Dec 22, 2018, at 3:59 PM, Mark Wheeler via Elecraft <[hidden email] <mailto:[hidden email]>> wrote:
>>>
>>> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
>>>
>>> Thanks,
>>> Mark/WU6R
>>> ______________________________________________________________
>>> Elecraft mailing list
>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>>
>>
>> ______________________________________________________________
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[Bob McGraw - K4TAX]

Depends largely with RF environment.  Due to location of antenna and station, a strong RF field may exist at the station location.  Separation between the two is our friend.  

Bob, K4TAX


Sent from my iPhone

> On Dec 22, 2018, at 4:25 PM, Nr4c <[hidden email]> wrote:
>
> I use West Mountain Radio Comm zspeakers with my K3(S) and should work fine with KX3.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Dec 22, 2018, at 5:19 PM, Michael Blake via Elecraft <[hidden email]> wrote:
>>
>> My Bose Color Soundlink speaker works really well with my KX3.  No distortion, no RF even when driving the KPA500 with the KX3.
>>
>>
>> Michael Blake
>> [hidden email] <mailto:[hidden email]>
>>
>>
>>
>>
>>
>>
>>> On Dec 22, 2018, at 5:08 PM, Bob McGraw K4TAX <[hidden email]> wrote:
>>>
>>> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.
>>>
>>> Bob, K4TAX
>>>
>>>
>>> Sent from my iPhone
>>>
>>>> On Dec 22, 2018, at 3:59 PM, Mark Wheeler via Elecraft <[hidden email] <mailto:[hidden email]>> wrote:
>>>>
>>>> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
>>>>
>>>> Thanks,
>>>> Mark/WU6R
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
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>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
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>>>
>>>
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>

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[Jim Brown-10]

On 12/22/2018 2:08 PM, Bob McGraw K4TAX wrote:
> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.

Powered speakers are historically very RFI susceptible, even high priced
ones made for pro use and for the high futility world. I would also be
quite concerned about RF noise produced by their power supplies, which
are almost all switchers.

73, Jim

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[Don Wilhelm]

Mark,

Many computer speakers are quite sensitive to RF and cause that problem.
At my 100 watt power level, I have found the West Mountain Radio
COMspkrs are immune to that problem (they are shielded).  I don't know
what might happen at power levels above 100 watts.

The only thing I don't like about them is the bright blue LED.  I have
mine covered with tape.

73,
Don W3FPR

On 12/22/2018 4:59 PM, Mark Wheeler via Elecraft wrote:
> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
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[Ken G Kopp]

I can't speak more highly about my two pairs of West Mountain speakers.

73 !

Ken G Kopp

---------- Forwarded message ---------
From: Don Wilhelm <[hidden email]>
Date: Sat, Dec 22, 2018, 16:15
Subject: Re: [Elecraft] OT: Need Recommendations for Powered Speaker for
KX3 (WU6R)
To: Mark Wheeler <[hidden email]>, <[hidden email]>


Mark,

Many computer speakers are quite sensitive to RF and cause that problem.
At my 100 watt power level, I have found the West Mountain Radio
COMspkrs are immune to that problem (they are shielded).  I don't know
what might happen at power levels above 100 watts.

The only thing I don't like about them is the bright blue LED.  I have
mine covered with tape.

73,
Don W3FPR

On 12/22/2018 4:59 PM, Mark Wheeler via Elecraft wrote:
> While the K3S is in the shop, I setup the KX3 as my temporary base
station, but the internal speaker leaves a lot to be desired at higher
volume. I connected a cheap set of powered pc speakers to the KX3 but I
hear distortion through the powered speakers when transmitting with the KX3
and KPA-100 connected to a KPA-500. Has anyone found a high quality powered
speaker to connect to the KX3 that doesn’t distort when transmitting?
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[Elecraft mailing list]

Thanks Bill.
Mark

Sent from my iPad

> On Dec 22, 2018, at 5:25 PM, Nr4c <[hidden email]> wrote:
>
> I use West Mountain Radio Comm zspeakers with my K3(S) and should work fine with KX3.
>
> Sent from my iPhone
> ...nr4c. bill
>
>
>> On Dec 22, 2018, at 5:19 PM, Michael Blake via Elecraft <[hidden email]> wrote:
>>
>> My Bose Color Soundlink speaker works really well with my KX3.  No distortion, no RF even when driving the KPA500 with the KX3.
>>
>>
>> Michael Blake
>> [hidden email] <mailto:[hidden email]>
>>
>>
>>
>>
>>
>>
>>> On Dec 22, 2018, at 5:08 PM, Bob McGraw K4TAX <[hidden email]> wrote:
>>>
>>> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.
>>>
>>> Bob, K4TAX
>>>
>>>
>>> Sent from my iPhone
>>>
>>>> On Dec 22, 2018, at 3:59 PM, Mark Wheeler via Elecraft <[hidden email] <mailto:[hidden email]>> wrote:
>>>>
>>>> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?
>>>>
>>>> Thanks,
>>>> Mark/WU6R
>>>> ______________________________________________________________
>>>> Elecraft mailing list
>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>>> Help: http://mailman.qth.net/mmfaq.htm
>>>> Post: mailto:[hidden email]
>>>>
>>>> This list hosted by: http://www.qsl.net
>>>> Please help support this email list: http://www.qsl.net/donate.html
>>>> Message delivered to [hidden email] <mailto:[hidden email]>
>>>
>>>
>>> ______________________________________________________________
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[Doug Person-5]

I'm glad they (West Mountain speakers) worked for you. Mine were just
about as bad as the cheap $10 pair they replaced. Then they just died.

Computer speaks are always hit or miss. I've found Logitech, even the
cheap ones, are decent. But there's only so much any tiny amp can
handle. I actually found a pair of super efficient non-amplified
speakers meant to work off a headphone output. Not a lot of volume. But
a lot more than the built-in.

I also built a small speaker enclosure using a plastic utility box with
2 1.25" Mylar speakers driven by one of the now highly common tiny
amplifier boards. I shielded and beaded everything. Works great and a
fun little project.

73, Doug -- KJ0F

On 12/22/2018 4:20 PM, Ken G Kopp wrote:

> I can't speak more highly about my two pairs of West Mountain speakers.
>
> 73 !
>
> Ken G Kopp
>
> ---------- Forwarded message ---------
> From: Don Wilhelm <[hidden email]>
> Date: Sat, Dec 22, 2018, 16:15
> Subject: Re: [Elecraft] OT: Need Recommendations for Powered Speaker for
> KX3 (WU6R)
> To: Mark Wheeler <[hidden email]>, <[hidden email]>
>
>
> Mark,
>
> Many computer speakers are quite sensitive to RF and cause that problem.
> At my 100 watt power level, I have found the West Mountain Radio
> COMspkrs are immune to that problem (they are shielded).  I don't know
> what might happen at power levels above 100 watts.
>
> The only thing I don't like about them is the bright blue LED.  I have
> mine covered with tape.
>
> 73,
> Don W3FPR
>
> On 12/22/2018 4:59 PM, Mark Wheeler via Elecraft wrote:
>> While the K3S is in the shop, I setup the KX3 as my temporary base
> station, but the internal speaker leaves a lot to be desired at higher
> volume. I connected a cheap set of powered pc speakers to the KX3 but I
> hear distortion through the powered speakers when transmitting with the KX3
> and KPA-100 connected to a KPA-500. Has anyone found a high quality powered
> speaker to connect to the KX3 that doesn’t distort when transmitting?
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
> ______________________________________________________________
> Elecraft mailing list
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[Elecraft mailing list]

Don,
Thanks, I’ll give the WMR speakers a try.

73, Mark

> On Dec 22, 2018, at 6:15 PM, Don Wilhelm <[hidden email]> wrote:
>
> Mark,
>
> Many computer speakers are quite sensitive to RF and cause that problem.
> At my 100 watt power level, I have found the West Mountain Radio COMspkrs are immune to that problem (they are shielded).  I don't know what might happen at power levels above 100 watts.
>
> The only thing I don't like about them is the bright blue LED.  I have mine covered with tape.
>
> 73,
> Don W3FPR
>
>> On 12/22/2018 4:59 PM, Mark Wheeler via Elecraft wrote:
>> While the K3S is in the shop, I setup the KX3 as my temporary base station, but the internal speaker leaves a lot to be desired at higher volume. I connected a cheap set of powered pc speakers to the KX3 but I hear distortion through the powered speakers when transmitting with the KX3 and KPA-100 connected to a KPA-500. Has anyone found a high quality powered speaker to connect to the KX3 that doesn’t distort when transmitting?

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[Macy monkeys]

I drive the aux port of my Sangean WR-11 wood cabinet tabletop radio. Sounds fantastic. Best speaker I've found yet; tons of audio, no distortion, no RFI.

John K7FD

> On Dec 22, 2018, at 3:03 PM, Jim Brown <[hidden email]> wrote:
>
>> On 12/22/2018 2:08 PM, Bob McGraw K4TAX wrote:
>> Sounds like RF getting into the audio amps of the speakers.  May require ferrite beads with a couple of turns thorough the beads on the audio and power cables.
>
> Powered speakers are historically very RFI susceptible, even high priced ones made for pro use and for the high futility world. I would also be quite concerned about RF noise produced by their power supplies, which are almost all switchers.
>
> 73, Jim
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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> Please help support this email list: http://www.qsl.net/donate.html
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