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Reviews Categories | Amplifiers: RF Power - HF & HF+6M | Alpha 9500 Help

Reviews Summary for Alpha 9500
Alpha 9500 Reviews: 106 Average rating: 4.8/5 MSRP: $7950. USD
Description: Fully-automatic 160-10M amplifier, successor to the 87A. Uses a single 8877 tube in grounded-grid configuration. Integrated antenna switching, full QSK with vacuum relay.
Product is in production.
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NJ3A Rating: 5/5 Apr 29, 2013 16:37 Send this review to a friend
Horsepower to spare  Time owned: 3 to 6 months
I traded in my Alpha 8100 amp for a new Alpha 9500 and can't be any more pleased. Once the amp has been auto tuned following the manual (it's not difficult)..this piece of equipment is ready to punch through the pile ups. For a reliable full legal limit amp, this hardware cannot be beat. The build of the amp is spectacular. It really is a piece of art. Be sure to have help (if you can't handle an 80 lb sack of cement)...because the amp weighs about that with the power supply installed. Once it's up and running, you'll appreciate the multiple antenna inputs, easy stand-by mode and digital readouts. If you are working it with an Alpha 9500
KI0KB Rating: 5/5 Apr 26, 2013 10:55 Send this review to a friend
Almost forgot.....  Time owned: 6 to 12 months
One last thing I forgot to mention in comparing the ALPHA 9500 to the ACOM 2000A. The 9500 has a built in 4 port antenna switch which is a REALLY NICE addition since the 2000A only had one RF output. My antenna switching array disappeared when I got the 9500... and once again, I'm glad I bought AMERICAN this time.... Thanks Alpha.... 73 de KI0KB
K5OS Rating: 5/5 Apr 25, 2013 09:15 Send this review to a friend
9500 - Simply the Best  Time owned: more than 12 months
The Alpha 9500 is the best. All you have to do is turn it on and transmit, it works flawlessly. I have never experienced a problem with my 9500. Band switching and tuning are fast and precise. I would definitely buy this amplifier again. I do love those 59+ reports.
KC2TKD Rating: 5/5 Mar 13, 2013 07:38 Send this review to a friend
Great results  Time owned: 6 to 12 months
I may as well have a 59 signal report pre-printed in my log. This amp works flawlessly, auto band switching and tuning is fast. I traded up my Alpha 87A last summer. This amp is everything that RF Concepts claims and I am satisfied with my choice. And add to that the excellent support from the staff at RF Concepts I would recommend this amp to anyone.
N7BD Rating: 5/5 Mar 5, 2013 10:04 Send this review to a friend
First Class - Outstanding Unit!  Time owned: 0 to 3 months
I had the privilege and honor of using one of these fine units for our K2O Special event aboard the Showboat Branson Belle this past weekend. It flawlessly performed non-stop for 46 hours and didn't even get warm. It is, without doubt, thge finest amplifier I've ever had the opportunity to use. While I was placing it back into the shipping box, it kept crying out, "Keep me, Keep me"! I told the XYL, "I'm not greedy, I only want one!" Her side-ways smile said it all, Don't even think about that much money! My sincere thanks the the folks at RF Concepts that made it all possible!
KD6BZN Rating: 5/5 Jan 26, 2013 23:22 Send this review to a friend
"Wow! Big Signal!"  Time owned: 0 to 3 months
It’s an awesome piece of machinery, well built, functions as they all say.

Being a lab-level software programmer, I especially enjoyed being able to write my own remote control software to interface the Alpha 9500 to HRD. The amp has all of the fancy test equipment built-in to measure input power, output power, and it even does the math for you and tells you the delivered power to the antenna (Delivered=Forward-Reverse). And of course, it has fault sensing that puts commercial/military amps to shame.

I do have some issues:

First, I already know what my signal report is going to be. It’s always at least “59”. Even when I’m straining to hear the other station 12,000 miles away, it’s all very predictable, it’s always “59” or “59+”. Related to this, I hear these comments from other people often: “Wow! Big signal.. didn’t know the band was in”, “Great Signal!”, etc… Again predictable… Another issue I have, and this one is serious, since my signal is “full quieting” at the other station’s antenna, the operator immediately begins to mumble into the microphone as if he’s talking to someone across the street and doesn’t have to speak loudly to be heard. So, I have to remind these folks that I am running 1500 Watts! Either get an Alpha or continue to speak up, hold your chin up and tweak the compression and filter the microphone response so I might hear you!!!

Second, Breaking pile-ups is no longer a challenge. I can work the DXpedition stations and still have time to watch TV with my wife. Depending on who you talk to, this can be a real issue, perhaps the Alpha folks can take a look at this issue for the next firmware update.

All kidding aside, the folks at Alpha and their equipment are top notch! Molly was especially helpful; She assisted my wife with the purchase process and later she answered my programming interface questions by sending some sample code to study.

Thanks for a great amplifier and thanks for building it in America.
AH0U Rating: 5/5 Dec 16, 2012 15:14 Send this review to a friend
A real work of art  Time owned: 6 to 12 months
This 9500 is my third Alpha and carries on the tradition of high quality of my past two. When asked why I bought a 9500 when I already had an 87a all I could say was I love my 87a but if Alpha came out with a new model, it must be even better... and it is!!! When I removed the cover to I stall the beast of a power transformer, I was delighted to see the same craftsmanship Alpha is famous for. This amp is made in America the way things were made when "made in America" meant something special. In the future, collectors will be hoarding Alphas the same way they collect Collins today
K7XB Rating: 5/5 Dec 1, 2012 12:07 Send this review to a friend
WOW  Time owned: 0 to 3 months

The 9500 is all I had hoped for and more. "If" this amp gives me years of trouble free operation, I will rate it a 5 plus. It works great and I'd hate to be without it!

I picked up my new 9500 in mid October 2012.This was my second trip to RF Concepts in Longmont, CO, but my first trip taking home one of their amps. I spent part of the afternoon talking with Molly, Tom and Ken. Molly is wonderful, Tom was very helpful and Ken is the kind of person that gives up his free time to help others. RF Concepts, quality people making quality products. Thanks

Steve, K7XB
NC6K Rating: 5/5 Nov 28, 2012 15:31 Send this review to a friend
It Is What I Thought It Was - Excellent  Time owned: 3 to 6 months
Sorry for the lame attempt at stealing a football quote, but there's no doubt that the 9500 is everything the manufacturer says it is. I bought a refurbished amp directly from RF Concepts (they did a full checkout and burn-in after replacing the final) to save a few dollars. I am definitely NOT disappointed.

I've used this amp for DXing, contests and ragchewing on all HF bands (except 60M). It's not only able to put out full legal limit to my hexbeam and 43' vertical (without a tuner), but does so for hours on end. I've been able to work stations that I could barely pull out of the noise with my Yaesu FT-5000MP, which is no slacker either. I've been able to run for several hours in contests at full power with only the fan speed increasing to let me know the amp is working hard. For the first two weeks I had it, I had to run it on 110 V and it performed admirably, putting out around 1000-1200 W. Once I switched over to 240 V, the difference in current draw (no more dimming lights when I keyed the transmitter) and output was quite evident.

If you can afford/justify the expense, this amp is well worth it. It's beautifully constructed and very easy to use. The few times that I've driven it to fault (wrong antenna, too much drive, etc.), it reset immediately when I pressed the correct button and went right back to working smoothly.
K5DBM Rating: 5/5 Nov 25, 2012 11:52 Send this review to a friend
RF Concepts and the Alpha 9500  Time owned: 6 to 12 months
You've read all the technical reviews. Here's my take on the experience as a whole. Simply put, RF Concepts does what they say they'll do and the Alpha 9500 does what they say it will do. Excellent experience all the way around. They don't give it away but I am comfortable that I got my moneys worth and I believe the 9500 will be the center piece in my shack for a long time to come. I'd do it again - that says it all.
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