[Elecraft] CM-500 Question
JHR
jrichards at k8jhr.com
Mon Aug 7 22:44:02 EDT 2023
Ahem. CM-500 headset. Meh. Uninspiring old school.
I was a long time microphone and headset product test and review writer
for the speech recognition trade - including both vendors and
manufacturers, such as IBM, Microsoft, Nuance, Scansoft, Lernhout &
Hauspie, Dragon Systems, Kurzeweil AI, and many hardware resellers. I
suppose that made me an "influencer" long before that became a popular
pastime for teenagers broadcasting from their bedrooms on YouTube.
I tested A LOT of microphones and headsets of all kinds, including the
CM-500 which appears to be a rebranded $29 KOSS SB-40 with an very low
cost electret capsule instead of the original more costly dynamic
cartridge. I have repaired multiple CM-500s which broke down during
service at a multi-multi contest station and at friends' home stations.
The microphone is nothing more than a thirty cent condenser capsule -
exactly what umpty-thousand other headsets have. The stock ear pads are
flat and lack luster. The earphone receivers (speakers) are mediocre at
best. The product has been in production for a long time, so it is
fairly long in the tooth. Bottom line - there is nothing special,
wonderful, or exciting about the CM-500. Really.
You can substitute any number of similar computer grade headsets for the
CM-500 and obtain equivalent or (likely) BETTER audio and mechanical
performance. Shoot, the KOSS SB 45/49 cost around $35-$40 (street
price) and is as good - which makes me wonder why anyone would pay
nearly $60 for the Yamaha model. And still, you could substitute most
any well constructed computer gaming headset and achieve similar results
- and perhaps realize better longevity and durability.
Hams are a funny lot. Some spend thousands on their transceivers,
before spending substantial additional sums on big money audio equipment
(which is not needed, but I digress) while cheaping it on other links
in the audio chain. But then, the CM-500 is proof one merely needs a
thirty cent electret capsule to get good results on the air! And, yet,
it is far from the headset I would choose. In my opinion, Mr. X lost
substantial credibility as an audio consultant insisting the CM-500 is
something special (practically insisting it is the Holy Grail of ham
headsets ...) but then, most hams always recommend what they have, as
if there was no other option worth considering. Moreover, many hams
just ask what other guys are using, and repeat their choices
(mistakes?), without doing their own research, and failing to make an
independent judgment as to what looks and sounds good, and hold up over
time. I believe station building is one of the most interesting and
engaging aspects of this fine hobby. In contrast, other hams just ask
what other guys think is best and choose a popular model mentioned on
the reflector, as if that covers it in full. They miss out on the
myriad of other options available which may be superior in multiple
ways. And yet, they overlook the obvious. If every ham on the
reflector recommends a different speaker, microphone, headset, code key,
etc., - that means a large number of very different products will get
the job done - suggesting there is a very large market, and there is no
such thing as "best" mic, speaker, etc. But, rather than do their own
research, they ask a few guys and follow the crowd. Of course, that is
NOT my course. It is horses for courses, if you look long enough.
I recommend shopping the low cost computer gaming headset market and
getting something that sounds, looks, and feels better than the trusty
old CM-500 - which, by the way, I do not believe is particularly
durable. Yamaha keeps selling them because folks keep buying them - I
am sure it recovered its investment in KOSS's R&D long ago and is
milking a sweet profit and delaying its long overdue replacement. It
is an OEM headset sold by multiple low cost re-sellers at best ... other
companies rebranded it, but then, maybe that merely attests to its
profit margin - meaning it cost very little to make, and produces a huge
return at the cash register. That makes it good for vendors, but does
not always translate into best product in the market.
Of course, this is only MY take, which I acknowledge is not a popular
assessment on this reflector. And yet, it is my honest opinion after
years of testing, reviewing and assessing similar products. One of my
hobbies is building microphones, and occasionally headsets, from scratch
parts or from available replacement parts. One might be surprised at
how simple and low cost these things are to make! As for the CM-500 -
not in MY shack - I grew weary fixing them for other hams. But you
pays your money and takes your chances. Good luck. It is not that
the CM-500 does not work well - point is, there are A LOT of
alternatives for lower, same, and higher cost, if one is willing to do
his homework. Again, just MY take. Your mileage may differ. K8JHR
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