[Elecraft] K2

[Don Wilhelm]

Phil,

I would guess that the Yaesu speaker is 8 ohms impedance (that is a quite
common impedance) - a 4 ohm speaker like that used for the K2 internal
speaker will allow more power than an 8 ohm speaker.

The efficiency of the speaker has a lot to do with how loud it sounds too.
Some speakers sound loud with just a watt of drive and others need more than
that just to produce a whisper level sound.

I use an external amplifier that will drive about 3 watts peak into a 9 ohm
speaker (5 inch woofer type), and that is plenty of 'earshattering' power
for my use.  I have always thought the K2 to be a bit 'wimpy' on the audio
output - but I have found it is really adequate when driving the internal
speaker, just not a lot of reserve to overcome a high ambient acoustical
noise level.

73,
Don W3FPR

Life is what happens when you are making other plans

----- Original Message ----- 

> I recently had one of Elecraft's recommended technicians add all the mods
> and S/W to bring my unit back to current production.  Really is nice
> compared to when it left.  Only question I have is the amount of audio.  I
> am driving a Yaesu SP-5 speaker and even though the audio is loud enough,
I
> can take the AF and RF to max and not over drive it.  Perhaps a different
> speaker?  AF is at 3 o'clock and RF open for regular listening.  BTW using
> N4PY software and controlling SSB, I can really open it up to sound even
> better.
>