Elecraft

Speakers - Optimal Frequency Range?

Classic

List

Threaded

26 messages Options

Phillip Lontz

Re: Speakers - Optimal Frequency Range?

Love the the Ety's in the ear with the custom ear molds. They are very comfortable too.
And block out EVERY THING!
What me worry?

> On Oct 17, 2016, at 9:15 PM, Jim Brown <[hidden email]> wrote:
>
>> On Mon,10/17/2016 7:56 PM, Ron D'Eau Claire wrote:
>> Of course the room in which the speaker is used has a huge effect too.
>
> When you're sitting right in front of a loudspeaker you're in its near field. That causes what you hear to be dominated by direct sound from the loudspeaker. The loudspeaker(s) excites the room, but you're so close to the loudspeaker that you don't hear the room response. Most recording studios have a pair of high quality loudspeakers mounted on top of the console for exactly that purpose. They also have a larger pair that DOES excite the room.
>
>> I dread to think we'd require anechoic chambers for Hamshacks!
>
> Anechoic chambers are TEST environments, they are lousy listening environments.
>
>> On Mon,10/17/2016 7:26 PM, Doug Person wrote:
>> A good audio setup will amaze you when you talk to another properly adjusted radio with a good microphone.
>
> All it takes for excellent receive sound quality is a decent pair of headphones. The CM500, Sony MDR7506, and Etymotic Research ER4 are excellent choices. There are other good choices, but these are well established, widely available, and not expensive. All are VERY comfortable for LOOONG contest weekends (although comfort in the ER4 depends on matching the ear piece to your ear).
>
> 73, Jim K9YC
>
> ______________________________________________________________
> 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]

Doug Person-4

Re: Speakers - Optimal Frequency Range?

In reply to this post by Jim Brown-10

I definitely agree with using good quality headphones for optimal
listening. But, headphones are a different psycho-acoustical experience
than a speaker system. Personally, I prefer to listen to a speaker
system. Headphones VS: Speaker system will be different for everyone.
But, if you prefer speakers, i recommend decent quality components to
give you the best your "K" brand transceiver can deliver.

Doug -- K0DXV

On 10/17/16 9:15 PM, Jim Brown wrote:

> On Mon,10/17/2016 7:56 PM, Ron D'Eau Claire wrote:
>> Of course the room in which the speaker is used has a huge effect too.
>
> When you're sitting right in front of a loudspeaker you're in its near
> field. That causes what you hear to be dominated by direct sound from
> the loudspeaker. The loudspeaker(s) excites the room, but you're so
> close to the loudspeaker that you don't hear the room response. Most
> recording studios have a pair of high quality loudspeakers mounted on
> top of the console for exactly that purpose. They also have a larger
> pair that DOES excite the room.
>
>> I dread to think we'd require anechoic chambers for Hamshacks!
>
> Anechoic chambers are TEST environments, they are lousy listening
> environments.
>
> On Mon,10/17/2016 7:26 PM, Doug Person wrote:
>> A good audio setup will amaze you when you talk to another properly
>> adjusted radio with a good microphone.
>
> All it takes for excellent receive sound quality is a decent pair of
> headphones. The CM500, Sony MDR7506, and Etymotic Research ER4 are
> excellent choices. There are other good choices, but these are well
> established, widely available, and not expensive. All are VERY
> comfortable for LOOONG contest weekends (although comfort in the ER4
> depends on matching the ear piece to your ear).
>
> 73, Jim K9YC
>
> ______________________________________________________________
> 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]

Augie "Gus" Hansen

Re: Speakers - Optimal Frequency Range?

In reply to this post by Phillip Lontz

On 10/17/2016 5:20 PM, Phil Townsend Lontz wrote:
> ...
> I eq the crap out of the K3 after 8K and set the tone of my CW note to 440… Near a natural “C”.
> to me that sounds easy and warm.

When did this musical standard get changed? I've always tuned to A440.
Guess I'll need to tune all my guitars differently from now on... ;>)

Cheers,
Gus
KB0YH

______________________________________________________________
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]

Edward R Cole

Re: Speakers - Optimal Frequency Range?

In reply to this post by MaverickNH

Ron,

Interesting you bring this up as the KL7RA (sk) super contest station
had acoustic tile on the ceiling in the room with six contest
stations. I noticed immediately how nice voice sounded without echos
off hard surfaces. Floor was carpeted.

When I build my new ham 18x26 foot shack I am thinking of installing
some acoustic tile over the operating position (probably not the
entire ceiling). Floor will either be sealed concrete or maybe tile
(embedded radiant heat in the concrete). But perhaps a area rug
would dampen echos?

This is how radio station booths are designed. Person on the mic
sounds like next to you in your living room vs in a barn.

re: speaker linearity and THD also important as freq range. I'm
keeping my eight-inch National speaker in the big metal box. K3
sounds very nice with it. For very weak signals I will be trying out
bluetooth direct to my hearing aids. I spent more for the hearing
aids than my K3 plus accessories.

73, Ed - KL7uW

Date: Mon, 17 Oct 2016 19:56:08 -0700
From: "Ron D'Eau Claire" <[hidden email]>
To: <[hidden email]>
Subject: Re: [Elecraft] Speakers - Optimal Frequency Range?

Of course the room in which the speaker is used has a huge effect too.

I dread to think we'd require anechoic chambers for Hamshacks!

73 Ron AC7AC

73, Ed - KL7UW
http://www.kl7uw.com
"Kits made by KL7UW"
Dubus Mag business:
[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]

Jim Brown-10

Re: Speakers - Optimal Frequency Range?

On Tue,10/18/2016 2:04 AM, Edward R Cole wrote:
> Interesting you bring this up as the KL7RA (sk) super contest station
> had acoustic tile on the ceiling in the room with six contest
> stations. I noticed immediately how nice voice sounded without echos
> off hard surfaces. Floor was carpeted.

Yes, this is VERY important in multi-op contest stations when operating
SSB. The major issue is NOT sound on the air, but to minimize the sound
heard by an operator while other operators are shouting into their mics.
We contesters tend to get excited. Guys that have operated with the
great operator Jerry, WB9Z, say that he doesn't need a mic! I visited
W3LPL several years ago and noted no sound treatment at all in a room
having only hard surfaces. I urged extensive sound absorbing materials.

The room should NOT affect on the air sound if 1) you're working a mic
within about 2 inches of your mouth, 2) TXEQ is set so that you're not
transmitting below about 400 Hz, and 3) mic gain and compression are set
so that you get no more than about 10 dB on voice peaks.

73, Jim K9YC

______________________________________________________________
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]

Phil Kane-2

Re: Speakers - Optimal Frequency Range?

In reply to this post by Doug Person-4

On 10/17/2016 9:47 PM, Walter Underwood wrote:

> In general, good hi-fi reproducers should be good communications reproducers.

I tried using a consumer-grade "hi-fi" speaker in a VHF/UHF mobile
installation and the highs drove me crazy. Pulled out the original
Motorola limited-range speaker from the junk box and the installation
sounded like it was supposed to. The Big Emm knew what they were doing. :)

73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402

From a Clearing in the Silicon Forest
Beaverton (Washington County) Oregon
______________________________________________________________
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]