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[K3] A speaker for the K3

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Phonema

[K3] A speaker for the K3

Dear Sirs,

I am pleased to inform you about the launch of Phonema, a little company created by radio amateurs to provide high-quality speakers. The Phonema speakers are designed to harmonize aesthetically with modern transceivers and to integrate SDR. They are the best complement for the most demanding DXers.
Phonema wants to start its career with the KSP3 model, a speaker designed specifically for Elecraft K3. Later on, we will have a module that will adapt to KSP3 in order to add a high dynamic range amplifier and the ability to switch different sound sources and connect headphones.
I encourage you to check all additional details inwww.phonemaspeakers.com

Best 73,

Amadeo di Giacomo - EA3OW
Phonema Speakers

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N2TK

Re: [K3] A speaker for the K3

Have they started shipping?
If so, has anyone tried it?
What is the price in the USA?
Wonder how it compares to my Kenwood SP-950 on my K3?

73,
N2TK, Tony

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of
Phonema
Sent: Tuesday, August 26, 2014 3:06 PM
To: [hidden email]
Subject: [Elecraft] [K3] A speaker for the K3

Dear Sirs,

I am pleased to inform you about the launch of Phonema, a little company
created by radio amateurs to provide high-quality speakers. The Phonema
speakers are designed to harmonize aesthetically with modern transceivers
and to integrate SDR. They are the best complement for the most demanding
DXers.
Phonema wants to start its career with the KSP3 model, a speaker designed
specifically for Elecraft K3. Later on, we will have a module that will
adapt to KSP3 in order to add a high dynamic range amplifier and the ability
to switch different sound sources and connect headphones.
I encourage you to check all additional details inwww.phonemaspeakers.com

Best 73,

Amadeo di Giacomo - EA3OW
Phonema Speakers

______________________________________________________________
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Post: mailto:[hidden email]

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Joe Subich, W4TV-4

Re: [K3] A speaker for the K3

> What is the price in the USA?

See: http://www.phonemaspeakers.com/tienda.html

106 EUR is about $140 - plus shipping & insurance - at current
exchange rates.

73,

... Joe, W4TV

On 2014-08-26 8:04 PM, N2TK, Tony wrote:

> Have they started shipping?
> If so, has anyone tried it?
> What is the price in the USA?
> Wonder how it compares to my Kenwood SP-950 on my K3?
>
> 73,
> N2TK, Tony
>
> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of
> Phonema
> Sent: Tuesday, August 26, 2014 3:06 PM
> To: [hidden email]
> Subject: [Elecraft] [K3] A speaker for the K3
>
> Dear Sirs,
>
> I am pleased to inform you about the launch of Phonema, a little company
> created by radio amateurs to provide high-quality speakers. The Phonema
> speakers are designed to harmonize aesthetically with modern transceivers
> and to integrate SDR. They are the best complement for the most demanding
> DXers.
> Phonema wants to start its career with the KSP3 model, a speaker designed
> specifically for Elecraft K3. Later on, we will have a module that will
> adapt to KSP3 in order to add a high dynamic range amplifier and the ability
> to switch different sound sources and connect headphones.
> I encourage you to check all additional details inwww.phonemaspeakers.com
>
> Best 73,
>
> Amadeo di Giacomo - EA3OW
> Phonema Speakers
>
> ______________________________________________________________
> 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
> 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]
>

Fred Smith-2

Re: [K3] A speaker for the K3

Nice little speaker but worth a $100 more than the West Mountain Radio
COMspkr @$39 shipped?? I have found them to be excellent com speakers and
use them on several of my radios a K3/K2/IC-9100 not matching but I don't
the room for everything to sit beside all the radios either.

73,
Fred/N0AZZ
K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100
P3/SVGA--KAT500--W2
Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G
300+w--(2) B-5016-G's 165w 2m

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Joe
Subich, W4TV
Sent: Tuesday, August 26, 2014 7:20 PM
To: [hidden email]
Subject: Re: [Elecraft] [K3] A speaker for the K3

> What is the price in the USA?

See: http://www.phonemaspeakers.com/tienda.html

106 EUR is about $140 - plus shipping & insurance - at current exchange
rates.

73,

... Joe, W4TV

On 2014-08-26 8:04 PM, N2TK, Tony wrote:

> Have they started shipping?
> If so, has anyone tried it?
> What is the price in the USA?
> Wonder how it compares to my Kenwood SP-950 on my K3?
>
> 73,
> N2TK, Tony
>
> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of
> Phonema
> Sent: Tuesday, August 26, 2014 3:06 PM
> To: [hidden email]
> Subject: [Elecraft] [K3] A speaker for the K3
>
> Dear Sirs,
>
> I am pleased to inform you about the launch of Phonema, a little
> company created by radio amateurs to provide high-quality speakers.
> The Phonema speakers are designed to harmonize aesthetically with
> modern transceivers and to integrate SDR. They are the best complement
> for the most demanding DXers.
> Phonema wants to start its career with the KSP3 model, a speaker
> designed specifically for Elecraft K3. Later on, we will have a module
> that will adapt to KSP3 in order to add a high dynamic range amplifier
> and the ability to switch different sound sources and connect headphones.
> I encourage you to check all additional details
> inwww.phonemaspeakers.com
>
> Best 73,
>
> Amadeo di Giacomo - EA3OW
> Phonema Speakers
>
> ______________________________________________________________
> 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
> 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]
>

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Jeff kb2m

Re: [K3] A speaker for the K3

And I think you would want to buy two of them? They sure don't look like a
pair of 300 $ speakers..

73 Jeff kb2m

> What is the price in the USA?

See: http://www.phonemaspeakers.com/tienda.html

106 EUR is about $140 - plus shipping & insurance - at current exchange
rates.

73,

... Joe, W4TV

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Charlie T, K3ICH

Re: [K3] A speaker for the K3

In reply to this post by Fred Smith-2

Scour the hamfests and buy a little metal cased, Radio Shack "Optimus",
(typically for under ten bucks). I use them on all the radios in the shack
and find them to sound better than of any of the high dollar speakers.

73, Charlie k3ICH

----- Original Message -----
From: "Fred Smith" <[hidden email]>
To: "'Joe Subich, W4TV'" <[hidden email]>; <[hidden email]>
Sent: Wednesday, August 27, 2014 5:56 AM
Subject: Re: [Elecraft] [K3] A speaker for the K3

> Nice little speaker but worth a $100 more than the West Mountain Radio
> COMspkr @$39 shipped?? I have found them to be excellent com speakers and
> use them on several of my radios a K3/K2/IC-9100 not matching but I don't
> the room for everything to sit beside all the radios either.
>
>
> 73,
> Fred/N0AZZ
>

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Johnny Siu

A speaker for the K3

Hello Charlie,

I concur with your observation and the same theory also applied to boom headsets. However, my caveat is that 'some experiment' with different speakers and headsets could be necessary. Therefore, you have to spend some time for experiment.

To make it clear, I have no intention to offend any operators using high dollars speakers and headsets.

To reiterate, I was banned from KX3 yahoo group for simply concurring another ham's user comments. I have already left KX3 yahoo group.

73

Johnny VR2XMC

________________________________
寄件人︰ "Charlie T, K3ICH" <[hidden email]>
收件人︰ [hidden email]
傳送日期︰ 2014年08月27日 (週三) 7:53 PM
主題︰ Re: [Elecraft] [K3] A speaker for the K3

Scour the hamfests and buy a little metal cased, Radio Shack "Optimus",
(typically for under ten bucks). I use them on all the radios in the shack
and find them to sound better than of any of the high dollar speakers.

73, Charlie k3ICH

----- Original Message -----
From: "Fred Smith" <[hidden email]>
To: "'Joe Subich, W4TV'" <[hidden email]>; <[hidden email]>
Sent: Wednesday, August 27, 2014 5:56 AM
Subject: Re: [Elecraft] [K3] A speaker for the K3

> Nice little speaker but worth a $100 more than the West Mountain Radio
> COMspkr @$39 shipped?? I have found them to be excellent com speakers and
> use them on several of my radios a K3/K2/IC-9100 not matching but I don't
> the room for everything to sit beside all the radios either.
>
>
> 73,
> Fred/N0AZZ
______________________________________________________________
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Charlie T, K3ICH

Re: [K3] A speaker for the K3

In reply to this post by Charlie T, K3ICH

I don't know of any Optimus speakers that are 45 inches deep.

Several different sizes of Optimus & Radio Shack branded speakers were
produced over the years that all sound great. Specifically the two sized
metal cased units I have are 6½ X 4 X 4 and 7 X 4½ X 4¼. These both at two
way speakers having a small tweeter. The older wooden cased one doesn't
have a tweeter but is similar in size.

I'm not sure if they're still in production though.

73, Charlie k3ICH

----- Original Message -----
From: "Gerry leary" <[hidden email]>
To: "Charlie T, K3ICH" <[hidden email]>
Cc: <[hidden email]>
Sent: Wednesday, August 27, 2014 8:12 AM
Subject: Re: [Elecraft] [K3] A speaker for the K3

Are you talking about the speakers that are about 4 inches wide about 7
inches long and about 45 inches deep and I have the screw on bracket? The
ones I am talking about are not powered but they do some excellent for their
size

Sent from my iPhone this time

> On Aug 27, 2014, at 5:53 AM, "Charlie T, K3ICH" <[hidden email]> wrote:
>
> Scour the hamfests and buy a little metal cased, Radio Shack "Optimus",
> (typically for under ten bucks). I use them on all the radios in the
> shack and find them to sound better than of any of the high dollar
> speakers.
>
> 73, Charlie k3ICH
>
>
> ----- Original Message ----- From: "Fred Smith" <[hidden email]>
> To: "'Joe Subich, W4TV'" <[hidden email]>; <[hidden email]>
> Sent: Wednesday, August 27, 2014 5:56 AM
> Subject: Re: [Elecraft] [K3] A speaker for the K3
>
>
>> Nice little speaker but worth a $100 more than the West Mountain Radio
>> COMspkr @$39 shipped?? I have found them to be excellent com speakers and
>> use them on several of my radios a K3/K2/IC-9100 not matching but I don't
>> the room for everything to sit beside all the radios either.
>>
>>
>> 73,
>> Fred/N0AZZ
>
> ______________________________________________________________
> 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]

Joe Subich, W4TV-4

Re: [K3] A speaker for the K3

The Optimus XTS-25 is a small "wood cased" ("simulated walnut grain
vinyl") single driver (passive) unit 6 3/4" H x 4 7/8" W x 4 1/8".

I've used one for years as a utility monitor and would really like
to find a half dozen of them for use with various rigs including
both K3s. I've been using "bookshelf" speakers as suggested by Wayne
many years ago - mine are Sony B1000 (10 1/4" x 6 3/4" x 7 1/4") -
$68/pair on Amazon. Similar speakers are available from many places
at similar prices - for example, Best Buy (Insignia 5 1/4" 2-Way
Bookshelf Speakers" - $60/pair).

I've recently found 3" bookshelf speakers (3.6" H x 3.6" W x x 4.6" D)
rated for 90 Hz - 18 KHz for $19/pair on Amazon that I'm preparing to
test an alternative to the old XTS-25. See:
<http://www.amazon.com/Pyle-PCB3BK-100-Watt-Bookshelf-Speakers/dp/B000MCGF1O>

Amazon also show a pair of 4" bookshelf speakers (4.8" x 4.8" x 5.2")
<http://www.amazon.com/gp/product/B000MCEL1K> for $28/pair that
looks like a good match to the K3 (and a whole lot less less than
$300/pair <G>).

73,

... Joe, W4TV

On 2014-08-27 8:43 AM, Charlie T, K3ICH wrote:

> I don't know of any Optimus speakers that are 45 inches deep.
>
> Several different sizes of Optimus & Radio Shack branded speakers were
> produced over the years that all sound great. Specifically the two
> sized metal cased units I have are 6½ X 4 X 4 and 7 X 4½ X 4¼. These
> both at two way speakers having a small tweeter. The older wooden cased
> one doesn't have a tweeter but is similar in size.
>
> I'm not sure if they're still in production though.
>
> 73, Charlie k3ICH
>
>
> ----- Original Message ----- From: "Gerry leary" <[hidden email]>
> To: "Charlie T, K3ICH" <[hidden email]>
> Cc: <[hidden email]>
> Sent: Wednesday, August 27, 2014 8:12 AM
> Subject: Re: [Elecraft] [K3] A speaker for the K3
>
>
> Are you talking about the speakers that are about 4 inches wide about 7
> inches long and about 45 inches deep and I have the screw on bracket?
> The ones I am talking about are not powered but they do some excellent
> for their size
>
> Sent from my iPhone this time
>
>> On Aug 27, 2014, at 5:53 AM, "Charlie T, K3ICH" <[hidden email]> wrote:
>>
>> Scour the hamfests and buy a little metal cased, Radio Shack
>> "Optimus", (typically for under ten bucks). I use them on all the
>> radios in the shack and find them to sound better than of any of the
>> high dollar speakers.
>>
>> 73, Charlie k3ICH
>>
>>
>> ----- Original Message ----- From: "Fred Smith" <[hidden email]>
>> To: "'Joe Subich, W4TV'" <[hidden email]>; <[hidden email]>
>> Sent: Wednesday, August 27, 2014 5:56 AM
>> Subject: Re: [Elecraft] [K3] A speaker for the K3
>>
>>
>>> Nice little speaker but worth a $100 more than the West Mountain Radio
>>> COMspkr @$39 shipped?? I have found them to be excellent com speakers
>>> and
>>> use them on several of my radios a K3/K2/IC-9100 not matching but I
>>> don't
>>> the room for everything to sit beside all the radios either.
>>>
>>>
>>> 73,
>>> Fred/N0AZZ
>>
>> ______________________________________________________________
>> 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
> 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]
>

Terry Myers

Re: [K3] A speaker for the K3

In reply to this post by Fred Smith-2

The speaker that matches my Yeasu FT-1000 has three inputs, phone plugs
for 1/8" and 1/4" phone plugs, extra adjustable audio filters, matches
in color and is just about a 1/2" taller than the K3.

It is pricy, but since I already own it, I will be keeping it even if I
get rid of the FT-1000.

Terry, KQ5U

On 8/27/2014 4:56 AM, Fred Smith wrote:

> Nice little speaker but worth a $100 more than the West Mountain Radio
> COMspkr @$39 shipped?? I have found them to be excellent com speakers and
> use them on several of my radios a K3/K2/IC-9100 not matching but I don't
> the room for everything to sit beside all the radios either.
>
>
> 73,
> Fred/N0AZZ
> K3 Ser # 6730--KX3 # 5210--K2/100 # 6470-KAT100
> P3/SVGA--KAT500--W2
> Amps Elecraft KPA500 HF/6m--Alpha's 9500 HF--87A HF--Mirage B-5030-G
> 300+w--(2) B-5016-G's 165w 2m
>
>
>
> -----Original Message-----
> From: Elecraft [mailto:[hidden email]] On Behalf Of Joe
> Subich, W4TV
> Sent: Tuesday, August 26, 2014 7:20 PM
> To: [hidden email]
> Subject: Re: [Elecraft] [K3] A speaker for the K3
>
>
> > What is the price in the USA?
>
> See: http://www.phonemaspeakers.com/tienda.html
>
> 106 EUR is about $140 - plus shipping & insurance - at current exchange
> rates.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 2014-08-26 8:04 PM, N2TK, Tony wrote:
>> Have they started shipping?
>> If so, has anyone tried it?
>> What is the price in the USA?
>> Wonder how it compares to my Kenwood SP-950 on my K3?
>>
>> 73,
>> N2TK, Tony
>>
>> -----Original Message-----
>> From: Elecraft [mailto:[hidden email]] On Behalf Of
>> Phonema
>> Sent: Tuesday, August 26, 2014 3:06 PM
>> To: [hidden email]
>> Subject: [Elecraft] [K3] A speaker for the K3
>>
>> Dear Sirs,
>>
>> I am pleased to inform you about the launch of Phonema, a little
>> company created by radio amateurs to provide high-quality speakers.
>> The Phonema speakers are designed to harmonize aesthetically with
>> modern transceivers and to integrate SDR. They are the best complement
>> for the most demanding DXers.
>> Phonema wants to start its career with the KSP3 model, a speaker
>> designed specifically for Elecraft K3. Later on, we will have a module
>> that will adapt to KSP3 in order to add a high dynamic range amplifier
>> and the ability to switch different sound sources and connect headphones.
>> I encourage you to check all additional details
>> inwww.phonemaspeakers.com
>>
>> Best 73,
>>
>> Amadeo di Giacomo - EA3OW
>> Phonema Speakers
>>
>> ______________________________________________________________
>> 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
>> 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
> 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
> 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]
>

hf4me

Re: [K3] A speaker for the K3

In reply to this post by Joe Subich, W4TV-4

Manual tuner - Manual amplifier :

I don't use "tune" unless I am using the internal tuner. Set your tune
power setting to 4 watts, place your amp in standby, press xmit (xmit only,
not tune) get your tuner properly adjusted, press xmit to release, turn your
power output down to 4 watts, enable your amplifier, place your radio in CW
mode, tune to a frequency CLOSE to where you want to transmit - NOT on top
of other QSOs, use your CW key to cause the radio to transmit, tune your
amplifier and refine your tuner settings, let off the key every few seconds
to not heat up everything, if your are happy with the current settings,
increase your power out slowly as you watch it on each increase until you
have achieved the output power you are looking for.

1 lower your output power
2 Transmit only a few seconds at a time
3 Find an unused frequency - close is plenty good
4 Tune with your radio without any amp
5 When happy, enable the amp
6 Adjust settings
7 Increase power slowly
8 Readjust if necessary.
9 Tune to your target frequency

73, Jim

-----Original Message-----
From: Elecraft [mailto:[hidden email]] On Behalf Of Joe
Subich, W4TV
Sent: Wednesday, August 27, 2014 9:45 AM
To: [hidden email]
Subject: Re: [Elecraft] [K3] A speaker for the K3

The Optimus XTS-25 is a small "wood cased" ("simulated walnut grain
vinyl") single driver (passive) unit 6 3/4" H x 4 7/8" W x 4 1/8".

I've used one for years as a utility monitor and would really like to find a
half dozen of them for use with various rigs including both K3s. I've been
using "bookshelf" speakers as suggested by Wayne many years ago - mine are
Sony B1000 (10 1/4" x 6 3/4" x 7 1/4") - $68/pair on Amazon. Similar
speakers are available from many places at similar prices - for example,
Best Buy (Insignia 5 1/4" 2-Way Bookshelf Speakers" - $60/pair).

I've recently found 3" bookshelf speakers (3.6" H x 3.6" W x x 4.6" D) rated
for 90 Hz - 18 KHz for $19/pair on Amazon that I'm preparing to test an
alternative to the old XTS-25. See:
<http://www.amazon.com/Pyle-PCB3BK-100-Watt-Bookshelf-Speakers/dp/B000MCGF1O
>

Amazon also show a pair of 4" bookshelf speakers (4.8" x 4.8" x 5.2")
<http://www.amazon.com/gp/product/B000MCEL1K> for $28/pair that
looks like a good match to the K3 (and a whole lot less less than
$300/pair <G>).

73,

... Joe, W4TV

On 2014-08-27 8:43 AM, Charlie T, K3ICH wrote:

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Jim Brown-10

Re: [K3] A speaker for the K3

In reply to this post by Charlie T, K3ICH

On Wed,8/27/2014 4:53 AM, Charlie T, K3ICH wrote:
> little metal cased, Radio Shack "Optimus"

I agree with the recommendation. Back in the 80s and 90s, we used a lot
of the smaller loudspeakers in this series to excite rooms with sine
sweeps, pink noise, and various other test signals for acoustic testing.
Yes, in those days the enclosure was a dull silver-colored metal. I
never used them myself -- I found some other really nice speakers that I
still have (and are now running on my K3). I haven't touted them here,
because they've been discontinued for 20 years. :)

It's silly to spend big bucks for a speaker (or mic) for the ham shack.
We don't need extended response, but we do want FLAT response and
reasonably low distortion in the voice range.

73, Jim K9YC
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Bill Frantz

Re: [K3] A speaker for the K3

On 8/27/14 at 11:02 PM, [hidden email] (Jim Brown) wrote:

>It's silly to spend big bucks for a speaker (or mic) for the
>ham shack. We don't need extended response, but we do want FLAT
>response and reasonably low distortion in the voice range.

I'm not even sure that flat response is absolutely necessary if
the distortion is low. You can certainly loose the base
frequencies in a voice without impacting understandability.
Raising the distortion on the other hand will have bad effects
almost immediately, and they will get worse as the distortion rises.

One of the reasons I've been able to get through the W1AW/n
pileups is the low distortion of the K3 and KX3, and the use of
your (K9YC's) non-flat response recommendations to get maximum
intelligibility for my 100 watts.

73 Bill AE6JV

-------------------------------------------------------------------------
Bill Frantz | When it comes to the world | Periwinkle
(408)356-8506 | around us, is there any choice | 16345
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www.pwpconsult.com | but to explore? - Lisa Randall | Los Gatos,
CA 95032

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Elecraft mailing list

Re: [K3] A speaker for the K3

In reply to this post by Jim Brown-10

RCA also made one that is pretty much the same thing
(I bought mine at radio shack about 10 years ago)

________________________________
From: Jim Brown <[hidden email]>
To: [hidden email]
Sent: Thursday, August 28, 2014 2:02 AM
Subject: Re: [Elecraft] [K3] A speaker for the K3

On Wed,8/27/2014 4:53 AM, Charlie T, K3ICH wrote:
> little metal cased, Radio Shack "Optimus"

I agree with the recommendation. Back in the 80s and 90s, we used a lot
of the smaller loudspeakers in this series to excite rooms with sine
sweeps, pink noise, and various other test signals for acoustic testing.
Yes, in those days the enclosure was a dull silver-colored metal. I
never used them myself -- I found some other really nice speakers that I
still have (and are now running on my K3). I haven't touted them here,
because they've been discontinued for 20 years. :)

It's silly to spend big bucks for a speaker (or mic) for the ham shack.
We don't need extended response, but we do want FLAT response and
reasonably low distortion in the voice range.

73, Jim K9YC

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Jim Brown-10

Re: [K3] A speaker for the K3

In reply to this post by Bill Frantz

On Wed,8/27/2014 11:31 PM, Bill Frantz wrote:

> On 8/27/14 at 11:02 PM, [hidden email] (Jim Brown) wrote:
>
>> It's silly to spend big bucks for a speaker (or mic) for the ham
>> shack. We don't need extended response, but we do want FLAT response
>> and reasonably low distortion in the voice range.
>
> I'm not even sure that flat response is absolutely necessary if the
> distortion is low. You can certainly loose the base frequencies in a
> voice without impacting understandability. Raising the distortion on
> the other hand will have bad effects almost immediately, and they will
> get worse as the distortion rises.
>
> One of the reasons I've been able to get through the W1AW/n pileups is
> the low distortion of the K3 and KX3, and the use of your (K9YC's)
> non-flat response recommendations to get maximum intelligibility for
> my 100 watts.

Note that I said flat response in the voice range. That's 200 - 4,000
Hz. Cheap speakers have bumpy response in the midrange, which produces
phase distortion, which reduces speech intelligibility. My recommended
low cut on TX gets rid of stuff in the <400 Hz range before it wastes TX
power. I generally recommend response flat down to 100 Hz on the RX
end, except with KX3, whose speaker output stage is current limited, to
about 300 Hz to increase headroom (that means it can be louder in your
headphones or speaker before it gets distorted).

73, Jim K9YC
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Phil Wheeler-2

Re: [K3] A speaker for the K3

In reply to this post by Jim Brown-10

Me, too re "I found some other really nice
speakers that I still have (and are now running on
my K3). I haven't touted them here, because
they've been discontinued for 20 years. :)"

I suspect many/most of us have such speakers
around. Anyway, these days there seems to be much
more interest in having a 27" video monitor
hanging on the wall to support the P3/SVGA and
other such devices ;-)

Phil W7OX

On 8/27/14, 11:02 PM, Jim Brown wrote:

> On Wed,8/27/2014 4:53 AM, Charlie T, K3ICH wrote:
>> little metal cased, Radio Shack "Optimus"
>
> I agree with the recommendation. Back in the 80s
> and 90s, we used a lot of the smaller
> loudspeakers in this series to excite rooms with
> sine sweeps, pink noise, and various other test
> signals for acoustic testing. Yes, in those days
> the enclosure was a dull silver-colored metal. I
> never used them myself -- I found some other
> really nice speakers that I still have (and are
> now running on my K3). I haven't touted them
> here, because they've been discontinued for 20
> years. :)
>
> It's silly to spend big bucks for a speaker (or
> mic) for the ham shack. We don't need extended
> response, but we do want FLAT response and
> reasonably low distortion in the voice range.
>
> 73, Jim K9YC

Bill-3

Re: [K3] A speaker for the K3

Not worried about the size of speakers, I use a pair of Behringer MS40
amplified speakers. They are two channel input (left and right each)
with an on-board amplifier. There appears to be no sensitivity to RF.
You can plug earphones directly into the speakers - and there are
controls for bass/treble and separate volume (gain) for each input.

Size wise, they are a little large for portable operation, but just fine
for the home station. I used to think they were over-kill, but after
seeing the projected delivered cost of a single non-powered speaker
given in another post - I have decided the Behringers are quite cost
effective at $150 from Amazon.com (may be less at other outlets).

I run the K3 into one input and my computer into the other input.
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