HRM

[drz400]

IS there any reason NOT to have the HRM EQ on the front?
It seems like this would be useful and easy to fit into a Fender style layout

[Tdale]

I have wondered about the same thing myself. Even if the pots usually are tuned to a good position, and left there, still, they are pots, and can be adjusted, so why not put them on the front?

I used a precicion 10-turn pot for my OD entrance, and it can be adjusted underneath the chassis.

I also tried something I haven't seen before. I put a dtdp switch right underneatch the MV pot (bottom of chassis) and wired it just like the Clean/OD switch, so that I can switch the send/return wires out of the circuit, so that the signal goes directely from the MV to the PI, withouth going through the send/return loop, when it's not used.

Haved fired it up yet, but I'm excited to find out there will be a noise-benefit..

Tommy

[fabiomayo]

My HRM built by a local tech has the post-OD EQ on the back of the amp,
with little cheap pedal knobs. It solves the problem of access but in my
opinion, it should at leas be graduated. I'd like it even better if it was
complete with fullsize knobs. But it does work fine!


In any case, I hardly ever change the settings so they might as well be
placed inside the chassis and keep signal runs shorter...

[Tdale]

or placed inside, where they normally are, but with a shaft coming out under the chassis.... same signal way, easier access

Tommy

[Normster]

In any case, I hardly ever change the settings so they might as well be placed inside the chassis and keep signal runs shorter...

BINGO! If you look closely at the Dumble pics that have circulated on the web, you'll notice that HAD put a lot of thought into the length of the signal runs. Any time you deviate from his layout, you probably end up with more wire.

[fabiomayo]

or placed inside, where they normally are, but with a shaft coming out under the chassis.... same signal way, easier access

Tommy

That sounds like a good idea!

I completely agree with you, Normster. About the signal runs in Dumble pictures, that is...

[Bob-I]

IS there any reason NOT to have the HRM EQ on the front?
It seems like this would be useful and easy to fit into a Fender style layout

No, no reason other than that's the way HAD did it. He's not the end all of engineers so roll your own.