Sound Isolation, AT4073 vs AT875. at
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Old September 2nd, 2008, 03:48 AM   #1
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Sound Isolation, AT4073 vs AT875.

I was checking again Dan Brockett's review of several mics (As I Hear It - Choosing the Right Microphone).

So I downloaded the samples that interested me, Male exterior, and I noticed that while the AT875 lacked a little bass, I could hear a LOT less BG noise than the AT4073.

I wouldn't expect that, because the AT4073 is a lot more expensive.

So, does that proceed? Did you guys get the chance of testing them side by side?

I sincerely could live with the little lack of bass the AT875 has, I'm thinking about selling my AT897 (that's really low output for me) and going from something with a better sensitivity, although I'm not sure if the difference would be that great (11va vs. 31va).

Please guide me on this matter, thanks a lot in advance.

Pietro Impagliazzo
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Old September 2nd, 2008, 06:59 AM   #2
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"I'm not sure if the difference would be that great (11va vs. 31va)"

That should be very noticeable. However, be sure that your recording devices pre-amps can accept such a hot signal (for example a Marantz PMD660 is great with an AT897 but can't handle hot signals like the ME66 pumps out, it distorts).
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Old September 2nd, 2008, 07:55 AM   #3
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Hi Pietro:

In the test, both of those ATs were set up in the exact same location, same voice, same recorder. I did notice that the AT-4073 is much more sensitive than the AT875. In fact, it was at least 3dB more sensitive than any other mic I tested. I tried to compensate for the level difference in the samples but even in reducing the level of the 4073 to match the others, I was struck by how more BG I heard through it.

I did purchase the AT875 and I must say that it continues to amaze me with how versatile it is and in how many situations it does a very good job in. It has become my go-to travel mic for it's size and price. Does it sound as good as my MKH-60? Not even close. But there are plenty of shoots that I do where using my MKH-60 is not as good of an idea.

For me, I prefer the sound of this very inexpensive mic over most of the other sub-$800.00 mics I have heard, it's that good. Of course, I use it camera mounted when I shoot EPK on sets, for which it is excellent and I use it on boom, for which it is surprisingly good. I must say that I really think that the AT875 is sort of a spoiler, it is such a great value for the money, I think every poor and low budget videographer/filmmaker should have one.

The 4073, while it is a fine mic, for me, it is only more useful and worth the triple the price for certain situations. If you record a lot of distant and soft spoken subjects, 4073 is great. If you are looking to reduce BG noise as your primary criteria, the 4073 is not the best choice.

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Old September 2nd, 2008, 07:46 PM   #4
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When you have some control over BG noise, the 4073 I swear can pick up a pin drop at 20 feet. That sensitivity comes with a trade off though..... very sensitive to all noise (handling especially). Still I love that mic.

Now Dan, you have me thinking about an AT 875... just for the ability to eliminate BG noise which I seem to find myself contending with now and then. JUST when I thought my sound setup was complete!!!

Teasing. Thanks all for your input on the AT875.

Oh and Dan, I'd still love to spend a day as your assistant for all that could teach me <g>.
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