[ADXA] congratulations, and amp info needed

Roger n5qs at ncaars.org
Thu Apr 16 21:44:09 EDT 2026


Dennis
I have heard good things about several of them but my experience is with 
ACOM and Expert.
The ACOM 2000 I had was great when it worked but I paid a lot more for 
repair then I paid for the AMP will never go back.
The other problem with the ACOM and most other tube amps is that I would 
see some good DX and by the time the amp warmed up either I had worked
them with 200 watts or they were gone.
I am now running 2 Experts one is a 2K series 3 which has been trouble 
free and is instant on with full 2KW out unless I limit it manually.
I normally run it on mid power which is around 1 KW.
I also have a 1.5K series 3 which has also been absolutely reliable.
I got the 1.3 used with no regrets.
I had a problem with my 2K series 2 but no problems on repair and it was 
in warranty at the time.
That was before MTC took over.
If you get an Expert I would recommend you hold out for a series 3 
because the duty cycle is much higher and the tuner has more range than 
the series 2.

I have no reservations recommending  the Experts.
Roger N5QS

On 4/16/2026 7:00 PM, Dennis Schaefer via ADXA wrote:
> I’ve been occupied by having a bathroom remodeled, but have ben 
> reading about all the accomplishments.  Congratulations to Dawn, 
> Roger, Ryan, and Steve on running their good records even higher. 
> Congratulations to the BVRC for favorable mention in QST.  I am proud 
> to be a member of that club, and the level of activity and commitment 
> is amazing.
>
> So on the other subject….  I have two 811A amps and they are fine, 
> will output 400-500 watts.  I see the shiny new things and think about 
> them but usually talk myself down.  I promised myself that if I got a 
> good report from my doctor at CARTI, I would at least look.  That was 
> today, and I seem to be good to go, so I’m wondering if anyone has any 
> comments pro or con on any of these.
>
> 1.  SPE Expert amps.  Sold by MTC.  I like Richard and they have 
> always treated me well but I wonder about service.
> 2.  Elecraft KPA-1500.  Support would be good, otherwise I don’t know 
> much about this amp.
> 3. OM power 2000A or the new 1700A (which doesn’t seem to be available 
> in the US now.   These look like good tube amps
> 4.  Power Genius - they are impressive and seem to support two rigs, 
> which would be nice.  They seem to be oriented to Flex, and I’m 
> keeping my Kenwoods.
> 5.  Mercury.  They seem good, a little less expensive.
> 6.  Acom.  So far, the 1200 watt solid state model may be my favorite, 
> at least on paper.   They have a good track record and a variety of 
> models.
> 7.  Others???
>
> Solid state or tube?  Tunable, or fully automatic?  Real QRO and have 
> to redo my antenna switching, etc.?  Lots of decisions.  1000-1200W, 
> solid state, fully automatic sounds pretty good, and I don’t think I 
> would blow anything up at that power level.
>
> I mainly need to get my butt back in the chair!
>
> 73,
> Dennis/RZ
>
>
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