Heil HM-12 Microphone


Pictured above is K6LCS working with the Heil PR40 - considered one of the “ultimate” mics for podcasting and other voice work. Leo LaPorte swears by them, as do many other mediacast professionals.

So when I heard of a new Heil dynamic element mic geared to the amateur radio market retailing for well under US$100, I wasn’t immediately excited. “But it’s got the Heil name on it,” I thought to myself. “Bob wouldn’t release a sub-par mic just to “hit” a certain price point ... “

So I ordered one. Plugged in to my PR40 setup - ProSonus TubePRE preamp with TungSol 12AX7 tube, and fed in to my 17” MacBook Pro.

The Heil HM-12 is a great sounding microphone - at ANY price.

Heil has tricked out this mic with three layers of “pop” and wind noise protection - one layer inside the head, and two layers on the actual mic element. See the photo below - the material of the screen material shown reminds me of what I use in my koi pond’s filter. There’s also a little shock protection inside for the element. It is a VERY natural-sounding mic. “Drive” and “Gain” settings used on the preamp for the PR-40 didn’t need to be changed a bit.

Spec sheet claims 80hz-14kHz response, with a great almost-35db rear rejection - practically  eliminating undesired noises from your room. I am using a Heil 4-to-3-pin XLR adapter on my setup.  Hams will be using the Heil CC-1 Series cables.

For my non-ham uses, this is an incredible bargain. I mean, I can purchase four of these for in-studio guests for the price of a single PR40. Don’t worry - my PR40 isn’t going anywhere ... (grin). For hams, this high-output dynamic element is going to sound GREAT on about any transceiver with a low impedance mic input.

Clint Bradford, K6LCS

June 16, 2011

Links ...

Click on the photo to go to Heil Sound’s HM-12 page.

HM-12 insert data sheet (1.8MB .pdf)

Heil USBQ - inline mic preamp  - review


(I do, after all, live in California ... )

This review is for educational purposes only. Void where prohibited. Batteries not needed, and are not included. Contents may settle during shipment. Use only as directed. No other warranty expressed or implied. This is not an offer to sell securities. May be too intense for some viewers. All models over 18 years of age - none are being Twitted by former-Congressman Weiner. No user-serviceable parts inside. Do not eat the microphone, nor any of its packaging materials. Contains a substantial amount of non-tobacco ingredients. Specifications cited were current at time of publication, and are subject to improve without notice.

K6LCS is not responsible for direct, indirect, incidental or consequential damages resulting from any defect, error or failure to perform. Keep away from fire or flame. Approved for veterans.

My cat, Blackie, was not harmed during the product photo shoot. Some of the trademarks mentioned in this product appear for identification purposes only. Tradenames of others belong to them.

K6LCS has no pecuniary interest in the Heil Sound company. But if you buy others’ mics, you just aren’t buying the best. This supersedes all previous notices.


A Heil Mic for UNDER a Hundred Bucks?

Taking the M12 apart.
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