HM-2 content incoming. Apologies in advance for the essay...
Got my
Bear Amps Heavier Metal yesterday and got to start my HM-2 shootout. It's a relatively unknown HM-2 derivative made in Springfield, MO. I've never actually known anybody who has had one, and there's almost no information on it online, but seeing as the man who makes it is a friend of a friend and he also loves GK amps like I do, I figured I'd have to give it a shot. Anyway, it came in and I got to knob twiddling. For this, I was doing a shootout of 4 various HM-2 clones/derivatives: The Dunwich DIY HM-2, the Bear Amps Heavier Metal, the Earthbound Audio Throat Locust, and the "lowly" Arion Metal Master. So far, I've had about an hour of jamming to my old standby tracks (early Metallica, mostly from their debut) to figure out what I'm liking so far.
Dunwich: No surprise it's amazing. I'm finding that I prefer it on the lower end of the distortion knob, but with high blend. It gives plenty of definition and body to the bass tone, but still has plenty of high end treble bite and that nasty hissy presence of an HM-2. In the mix however, that hiss isn't heard - just the compressed bass tones. I like how this seems to "round off" the bass tone while still maintaining aggression and that harshness of an HM-2 along the entire tonal spectrum. It's a fantastic HM-2 with plenty of versatile tones in the box - and with lower dirt/blend, doesn't have to sound terribly "chainsaw-y". If I could keep only 1 of these, it would probably be this one for its sheer versatility.
Bear Amps: First off, some notes about this pedal. (Check the link above for more info.) It's MADE to chainsaw. It's literally designed to chainsaw at every possible setting (though I found the extreme clockwise settings of the "quench" knob at around 3:00 or higher to effectively mute the pedal), and the EQ controls are made to tweak the extreme ends of the traditional HM-2 tone. So it can't really be tamed well, if you're wanting a lower gain HM-2 option. Even at lower dirt settings, it's definitely an HM-2, though restrained slightly. All that being said, if you WANT extreme control over the minutiae of your chainsaw death machine, this delivers. Don't be afraid of extreme EQ settings, because you're basically only tweaking the final 10% of the original EQ - and that guarantees you get plenty of chainsaw EQ no matter where you set it. It's also got plenty of bass response and bite, and is the most present in the mix. It's not rounded off at all like the Dunwich, so it really sticks out in a good way. But in the same breath, it doesn't sound as splattery or fizzy in the grit like you expect an HM-2 to sound - it's a more focused tone than the other pedals. Out of the mix, this was alarming to me as it sounded very different without anything else playing, but this was the easiest pedal to hear in the mix - pretty much every setting worked and it was down to me to find my perfect tone within those parameters. I found both of the switches in their up positions (the builder's tweaks to the circuit are engaged) to be the best tone for me, as in their down positions it lost some of the bass response and became too fizzy in the distortion for my preferred bass tones. This pedal requires both the most tweaking and the least tweaking - it's easy to get a chainsaw tone that works, but finding the EXACT tone you're looking for is tough because it's so sensitive in its range. Still, this is my current favorite because I DO want chainsaw. We'll see how much of that is honeymoon or not, but either it or the Dunwich is #1, and the other is just as good in different ways.
Earthbound Audio: I have a love/hate relationship with this one. It sounds great, and it's pretty versatile, but it just never quite is as good as others. I always feel I need to keep tweaking. It's a bit looser in feel than the previous two, but can get tighter with EQ adjustments. It can get similar tones to those pedals as well, but is never quite as bass-friendly or prominent in the mix. I can make this work, and in a mix I'm sure nobody but HM-2 aficionados would even tell the difference, but it doesn't do it for me like the previous two. Still, a worthy HM-2 for bass, and the mid frequency knob is an awesome addition. It really adds to the versatility of the pedal in achieving non-chainsaw tones. I can get decent "Lemmy" tones out of this one with low gain, low mid frequency, high bass and mids, and low treble content. That tone alone is awesome. But for traditional chainsaw, I found this to be my least favorite of the four. I get the feeling this will do a better job when I do my guitar HM-2 shootout later. It's more a "traditional" HM-2 with a few tweaks, and that's what I seem to prefer for guitar (my current faves are basically straight HM-2 clones with minimal tweaks).
Arion: The "lowly" Arion Metal Master is an affordable HM-2 copy in a plastic enclosure. I've talked about it in the past, and it is by far the best "budget" HM-2 I've ever played for bass. It seems to retain lows or low mids better than the original, which helps it greatly in the bass department. There's not much to say about this except that it just works for a bass HM-2. I max the EQ, put distortion around 9:00, and volume as needed, and it's essentially a less-refined version of the tones from the Bear Amps pedal. The grit is a little chunkier that the Dunwich, and somewhat "splattier" than the Bear Amps, but not too far removed from either at the same time. It's a nice combo of the tonal characteristics of the more expensive pedals. For the $40 I paid for one of these a few years ago, it's an amazing deal. For chainsaw tones, I actually prefer this to the Earthbound, as it's easier to make work in the mix.
Wrap up:
Short version is that the Dunwich and Bear Amps are both phenomenal HM-2s in their own different ways. If you want a versatile HM-2 that can do a lot more than chainsaw, get the Dunwich. If you want variations on the theme of chainsaw to find your perfect weapon of mass destruction, the Bear Amps is the winner. If you want an affordable bass HM-2 that is still capable, get the Arion. If you want an HM-2 that excels in great non-chainsaw HM-2 tones, get the Earthbound.
If you've read all of this - congratulations on reaching the end!