Topic: zoom h2

[stantheman1976]

Upgrade the internal mics and preamp and if possible make it so the mics could be used in conjuntion with the line in for on the fly matrixes.

[micmonster]

Did you manage the mod?

[Ozpeter]

As far as I am concerned, the most significant problem with the H2 (and one which puzzles me greatly) is that recording via the mic inputs is very noisy compared with the internal mics, which I'd rate as being commendably quiet for the price (and quantity!).

It's as though the mic input socket goes through a completely different preamp from the built in mics - but why??!

So, the most simple requirement would be that the external mic socket (complete with its provision of "plug in power" ) should be routed through the same quiet preamp as the built in mics, instead of the naff preamp it currently uses.

Maybe it's the plugin power requirement which meant that they had to use a different preamp route?

Access to two preamps would of course be even better, if a second mic input were added.

Line input is fine, though over-sensitive.

[Church-Audio]

Hi guys the mod I have come up with is a pretty simple one. But I think it could allow for a more flexible recording system. I have installed two 3.5mm jacks on either side of the mic housing that once connected to a pair of battery boxes can be used to connect external microphones to your H2 so you can record with 2 stereo pairs of mics.. I think it might be pretty cool. Its a very simple mod to do most of you can do it if you have skills with a soldering iron and a razor blade I will post pictures in the next week once I am finished with it. When the external mics are plugged in it shuts off the internal mics.

Chris
BTW the internal mics are primo capsules.

[cybergaloot]

Sounds cool and sounds like a mod I might be willing to try myself. I can finally put some of the electronics school training to work

I assume what you mean by "primo capsules" is the brand, not an indication of the quality.

[Church-Audio]

Sounds cool and sounds like a mod I might be willing to try myself. I can finally put some of the electronics school training to work

I assume what you mean by "primo capsules" is the brand, not an indication of the quality.

Hi the primo mics are available at http://www.primomic.com/ they are EM-135
The 3.5 mm jacks that I am using I will post tomorrow when I get back into my office.

Chris

[micmonster]

Cool thang ! No pad?

[Church-Audio]

Cool thang ! No pad?

No pad but if your using a pair of mics that have my mod in them you dont need one... Or a pair of AT 853 mics with my 4.7k mod.


Chris

[aaronji]

Interesting.  Would you be able to use one pair internal and one pair external mics at the same time?

[micmonster]

Cool thang ! No pad?

No pad but if your using a pair of mics that have my mod in them you dont need one... Or a pair of AT 853 mics with my 4.7k mod.

Ah, you replaced the internal mics. I didn't realize this. So you used the EM-135 for your mod? Which where the orginal ones? Are you shure that the 5dB difference will make it?

Thanks, micmonster

[Church-Audio]

Interesting.  Would you be able to use one pair internal and one pair external mics at the same time?

Yes you would.

[Church-Audio]

Cool thang ! No pad?

No pad but if your using a pair of mics that have my mod in them you dont need one... Or a pair of AT 853 mics with my 4.7k mod.

Ah, you replaced the internal mics. I didn't realize this. So you used the EM-135 for your mod? Which where the orginal ones? Are you shure that the 5dB difference will make it?

Thanks, micmonster

No the internal mics are primo mics EM-135 from the factory. And actually they are not half bad. Part of the problem is the orientation of the capsules. I dont personally agree with.. I will take pictures in the next week or so and show you.

Chris

[micmonster]

Thanks man! Looking forward to this.

[cybergaloot]

I seem to remember that you made some very small battery boxes, do you still make those?

[Church-Audio]

I seem to remember that you made some very small battery boxes, do you still make those?

Yep. I still make them.

Chris