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Post by bluegrassdan on Jan 15, 2018 0:21:16 GMT -6
Audio examples of my new design in progress. A vacuum tube channel with microphone preamplifier, instrumet DI, tube opto compressor (LA2A), and a tube 3-band EQ. This video demonstrates the compressor on female vocals and the EQ on my own vocal.
Of course, only the highest quality Jensen transformers, NOS tubes, and components are used!
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Post by Mister Chase on Jan 15, 2018 1:37:42 GMT -6
I just saw the preamp video of the other unit. If only I had the$! Amazing work and lovely playing in that video.
This unit looks great too. Awesome idea and just a beautiful aesthetic too!
Best of luck to you. This is fine work.
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Post by bluegrassdan on Jan 15, 2018 12:54:38 GMT -6
Thanks! It will be a while before everything is built and ready. I’d like to have a working prototype in the next few weeks.
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Post by hadaja on Jan 15, 2018 18:40:48 GMT -6
So do you know what bass shelf is going to be set at? And do you think you will go with a fixed hz or will the bass be selectable frequencies inthe roll off?
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Post by Mister Chase on Jan 15, 2018 19:10:37 GMT -6
Thanks! It will be a while before everything is built and ready. I’d like to have a working prototype in the next few weeks. Maybe I'll have time to get one then :-) |
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Post by bluegrassdan on Jan 15, 2018 19:22:49 GMT -6
Here are what the "lo" and "hi" settings are doing right now.  |
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Post by bluegrassdan on Jan 15, 2018 19:41:59 GMT -6
So do you know what bass shelf is going to be set at? And do you think you will go with a fixed hz or will the bass be selectable frequencies inthe roll off? You can think about the bass rolloff in either of two ways: 1. A 90Hz (approx) bass rolloff in -2dB steps (approx). 2. A selectable high pass filter (-6dB per 8ve) with frequencies: 70Hz, 100Hz, 150Hz, 200Hz, and 300Hz. The low frequency boost is fixed at 60Hz in 2dB steps. There's still some tweaking and "dialing it in" to do, but you get the idea. By not putting too many numbers on the faceplate dial I'm hoping that folks will use their ears and not worry too much about +/- fractions of a dB or how wide the Q is at each frequency. This is designed to be a quick EQ for fast tone shaping during tracking. It's not for narrow band surgery. |
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Post by bluegrassdan on Jan 15, 2018 19:45:15 GMT -6
Here is the mid band set to 220Hz.  |
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Post by pope on Jan 16, 2018 4:28:44 GMT -6
That's a super wide curve.
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Post by bluegrassdan on Jan 16, 2018 6:26:31 GMT -6
It is pretty wide, but it’s not so different from a 1073 I measured. Especially if you consider that 220Hz is most likely to be cut during tracking, or only boosted very little.
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Post by pope on Jan 16, 2018 6:30:02 GMT -6
1073 has such wide curves? Interesting, didn't know that  |
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Post by bluegrassdan on Jan 16, 2018 6:32:51 GMT -6
It can be made narrower if anyone requests.  |
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Post by Mister Chase on Jan 16, 2018 9:43:44 GMT -6
Looks great to me! Harkens back to the old "high/low" EQ days. That's all you need!
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Post by donr on Jan 16, 2018 9:51:28 GMT -6
Clips sound great.
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