[Elecraft] K3 comments on Koss SB45 headsets

[Dave Hachadorian]

I just turned on my AL-1500 Amplifier and checked sound 
isolation.  The SB-45 and CM-500 are about the same in sound 
isolation.  Neither one is particularly good.


Dave Hachadorian, K6LL
Yuma, AZ



-----Original Message----- 
From: Barry N1EU
Sent: Tuesday, December 29, 2015 9:52 AM
To: Dave Hachadorian
Cc: Reflector Elecraft
Subject: Re: [Elecraft] K3 comments on Koss SB45 headsets

Dave, can you comment on how the isolation compares between the 
CM500
and the SB-45?  Does the SB-45 provide more isolation?

Thanks & 73,
Barry N1EU

On Mon, Dec 28, 2015 at 6:39 PM, Dave Hachadorian 
<k6ll.dave at gmail.com> wrote:
> It's quite a coincidence that you asked about the Koss SB-45, 
> because I just got one for Christmas!  Mine is the one with 
> 3.5mm connectors, not the USB version.  I also have a CM-500.
>
> I was going to post a review here after wearing the SB-45 all 
> next weekend in the RTTY Roundup, but here are my first 
> impressions.
>
> The microphone quality is fine.  The SB-45 needed about 3 dB 
> more boost in TX EQ #4 to sound like the CM-500.  The mic is an 
> electret.  Do not confuse this unit with the SB-40, which has a 
> dynamic mic, and apparently doesn’t sound so good.
>
> The audio out of the headphones is also fine, just as good and 
> loud and distortion-free as the CM-500, at least for 
> communications use.  I haven't tried either headset on music.
>
> I wore them for 1.5 hours on a long-winded net this morning, 
> and they were totally comfortable over that time period.  I do 
> wear eyeglasses.  People on the net said the audio sounded just 
> like the CM-500.  I'll give a better long-term comfort report 
> after the RTTY Roundup.
>
> The cord is nice and long, and the mic and headphone wires can 
> be separated easily to go to different places, after cutting a 
> little rubber thingie that keeps them together.  My mic goes to 
> the back of a computer on the floor, and my headphones go to an 
> SO2R box on the table.
>
> The SB45 is around $25 on Amazon, compared to $55 for the 
> CM-500.
>
> I think this headset is going to be a keeper, but I’ll give a 
> long term comfort report next week.
>
> Dave Hachadorian, K6LL
> Yuma, AZ
>
>
>
>
>
> -----Original Message-----
> From: Gary Gregory
> Sent: Monday, December 28, 2015 3:26 PM
> To: Elecraft List
> Subject: [Elecraft] K3 comments on Koss SB45 headsets
>
> Seasons greetings one and all.
>
> Has anyone used/using the Koss SB45 headsets on their K3?
>
> I have the CM-500 and I am on my second set but again the 
> padding is
> starting to deteriorate so before they look too ratty, figured 
> I would get
> a backup and as the CM500 are not available in VK but the Koss 
> SB45 are, I
> would appreciate any comments/advice the list may offer.
>
> Just to let you all know, I love my Yamaha cm500 BUT, shipping 
> cost from
> the US is really quite ridiculous these days and the AUD has 
> fallen off a
> cliff and the parachute failed to open...:-)
>
> The Koss SB45 are $69.00 AUD, free shipping. I like free...:-)
>
> TIA
>
> 73
> Gary
>
> --
>
>
>
> *Gary - VK1ZZ, K3NHLSkype: Gary.VK1ZZhttp://www.qsl.net/vk1zz
> <http://www.qsl.net/vk1zz>Motorhome Portable*
> *Miss Behavin'*
>
>
> *Elecraft K3KPA500FT  #18KAT500FT  #007*
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