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Shure A15HP and Mackie Onyx

 
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Lance Blair
M&M


Joined: 03 Jun 2007
Posts: 2279
Location: Atlanta

PostPosted: Fri Nov 25, 2016 12:19 pm    Post subject: Shure A15HP and Mackie Onyx Reply with quote

I just got my Black Friday deal - not a fancy mic or preamp, but the Shure A15HP High Pass Filter.

I use my Mackie Onyx board for preamps and I like them - but they have a 100 Hz HPF with 18 dB per octave reduction. That's way too much reduction!

The Shure takes off 12 dB per octave at 100 HPF.

If I then boost the 80 Hz +3dB at the Mackie Onyx, that will give me a reduction curve exactly like a 70 Hz HPF with 12 dB per octave, which I think is mega-spiffy for voice over. Laugh

http://www.shure.com/americas/products/accessories/microphones/microphone-problem-solvers/a15hp-inline-high-pass-filter
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FinMac
Lucky 700


Joined: 14 Jan 2013
Posts: 705
Location: In a really cool place...Finland!

PostPosted: Fri Nov 25, 2016 1:35 pm    Post subject: Thanks for sharing about the Shure Reply with quote

Hei Lance!

Thanks for posting about your Shure A15HP purchase. Been really curious about that one since I have been researching about a good in-line HPF.

Thought the Shure might be similar to the built-in HPF in the iD22, which is -3dB @ 100Hz, 2nd Order (12dB/Octave).

Ended up with the Rycote Tac!t, which is a 60 Hz filter, which is (In-line, active "third-order" (18dB/octave) filter with a "knee" at approximately 60Hz).

Would love to hear samples with your Shure when you have time to post them, or just send me a link. Smile
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DenaliDave
Club 300


Joined: 09 Jan 2016
Posts: 307
Location: Anchorage, Alaska

PostPosted: Fri Nov 25, 2016 7:51 pm    Post subject: Reply with quote

I've got one, haven't played around with it to much though -- glad to hear someone else has one!
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Lance Blair
M&M


Joined: 03 Jun 2007
Posts: 2279
Location: Atlanta

PostPosted: Mon Nov 28, 2016 2:09 pm    Post subject: Reply with quote

Here's the comparison:

http://lanceblairvo.com/sharing/Shure_vs_Mackie_100_Hz_HPF.wav

Signal Chain:

Rode NT1 > Shure A15HP (100 Hz -12 dB per octave HPF) > Mackie Onyx

then

Rode NT1 > Mackie Onyx with Mackie HPF (100 Hz -18 dB per octave) engaged

Both into a Scarlett 2i2.
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FinMac
Lucky 700


Joined: 14 Jan 2013
Posts: 705
Location: In a really cool place...Finland!

PostPosted: Tue Nov 29, 2016 10:30 pm    Post subject: thanks Lance Reply with quote

Thanks for posting that Lance!

There is a world of difference. Your Shure sounds pretty good Smile
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