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Categories | Amplifiers: RF Power - HF & HF+6M | ACOM 1500 Help

Show all reviews of the ACOM 1500

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N1HOQ  Rating: 5/5 Jul 1, 2013 12:58  Send this review to a friend!
Very nice modern amplifier.  Time owned: 0 to 3 months
I bought the Acom 1500 to replace an Ameritron ALS-600 and a Ten-Tec Centurion. The Ten-Tec had near legal power, the Ameritron had no tune fast band switching. Neither had 6 meters. I like to operate 160 through 6 meters, including digital high duty cycle modes (JT65 - FSK441 etc). The other two amps require significant power reduction to operate high duty cycle. The Acom 1500 solved those lacking qualities. It runs great on 6m WSJT at 1KW. I've not pushed it further to spec 1.2KW on digi modes. The amplifier runs as advertised on all bands. The cabinet is handsome although spartan, the display is easy to read and has all the data available with a metered amp and much more. The plastic knobs are capable but hardly high end, though the controls are definitely robust, including the band switch. Watch the videos for tuning the 1500 or the Acom 1000. It really is just that easy. I have found the front controls to be very repeatable in setting with only the slightest touch up perhaps needed when switching from band to band. The amp is as quiet as reported to be. At low speed, the fan noise is barely more than my IC-756 ProIII at low speed. In SSB mode the fan has not come off low speed at all, so far, even at high PEP power. Using the digi modes with anything over 500 W will trigger the fan speed to increase as the tube exhaust temperature nears 200 deg F. It does however ramp back down rather quickly between sequences. It is not a nuisance when operating digital in any case. Yes the relay is very quiet also, even in QSK mode - nice! On - air reports have been very nice, clean sounding and big signals. My station consists of an Icom ProIII with the W2IHY combo and a Heil Heritage with PR-20 element. Antennas are 5 el M2 at 72 ft.,Force 12 C31XR at 62 ft., inv. vee for 40m, and a 160m vee fed w/open wire line. My tuner is a Pal-Star AT-AUTO and its only needed on 80 and 160m and works beautifully with the Acom. In summary, the ACOM 1500 gives me what I wanted: Quick tuning and band changes, legal limit SSB and at least 1KW on digital, and full output on 6 meters. The 1500 also uses the 4CX-1000A tube which is readily available and in production. I had considered other amps, including SS amps, but none could match the features and capability of the ACOM, at least not for less than twice the price! Many had pretty weak warranties, others selling 1 and two year extensions for big bucks. The Acom warranty - 2 years on the amp, 1 year on the tube. Look at 6m only amps with 1500 w output. Close to $3,000.00 for the single band! Although not cheap, it does seem to be a great value for what it does. Bob at Array Solutions answered all my questions prior to ordering, and gave a very close estimate of shipping date ( they sold all stock on hand at Dayton!) After one week of use, it is a pleasure to operate and I anticipate it will have a place in the shack for many years. Tough to beat at $4,750 delivered to your door and ready to go to work. Thanks Bob and Array Solutions.
Shawn - N1HOQ. 
Product is in production.
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