"MS Mini" Basic Mid Side Board
Update September 9, 2021. The construction thread is located here: The construction thread for the Mid Side Mini is located here: viewtopic.php?f=7&t=1272
I've had a basic MS board on my list to replace the original I did over a dozen years ago.
The "MS Mini" incorporates the Mid Side gain offset capability of the MSII.
Using jumpers, Mid Encode level can be attenuated 6 dB [(L+R)/2] and an offset gain of +6 dB applied on decode to maintain MS ratio.
Using a jumper and an IC change (IC6 1240 or 1246) Side Encode level can be boosted 6 dB with a decode offset of -6dB.
Gain offsets in the Mid, Side or both Insert Sends present more-balanced levels to outboard gear.
Side is particularly level-challenged often being 10-20 dB below Mid.
The MS-Mini's decoder, identical to the MSII also prevents M+S and M-S from producing 2L and 2R.
This avoids having to incorporate a -6dB stage to maintain unity gain.
MS-Mini PC Layout
The board is about 3.7" by 2.75".
I'll be ordering them in the next day or so and should have a small run in about 10 days.
"MS Mini" Basic Mid Side Board
- mediatechnology
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- mediatechnology
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Re: "MS Mini" Basic Mid Side Board
This is the schematic for the "Mid Side MIni."
Mid Side MIni Compact MS Encoder/Decoder
Mid Side MIni Compact MS Encoder/Decoder
Re: "MS Mini" Basic Mid Side Board
I still have a pile of the V1 PCB's that I get good use out of. This is a nice addition to the line.
- mediatechnology
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Re: "MS Mini" Basic Mid Side Board
Thanks guys!
I'm expecting a small run of boards to arrive in the next hour or so.
I'm expecting a small run of boards to arrive in the next hour or so.
- mediatechnology
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Re: "MS Mini" Basic Mid Side Board
Just in...
Let's see if it runs.
Mid Side Mini PC Board
Let's see if it runs.
Mid Side Mini PC Board
- mediatechnology
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Re: "MS Mini" Basic Mid Side Board
Works great!
The construction thread for the Mid Side Mini is located here: viewtopic.php?f=7&t=1272
MS Mini PCB Assembled
Left > Right Crosstalk Full Encode/Decode
MS Mini Crosstalk L Into R
The full encode/decode 20 kHz unweighted noise level is about -96 dBu.
The dynamic range is 123 dB with +/-15V supplies.
MS Mini Noise Level 20kHz BW Full Encode Decode
The construction thread for the Mid Side Mini is located here: viewtopic.php?f=7&t=1272
MS Mini PCB Assembled
Left > Right Crosstalk Full Encode/Decode
MS Mini Crosstalk L Into R
The full encode/decode 20 kHz unweighted noise level is about -96 dBu.
The dynamic range is 123 dB with +/-15V supplies.
MS Mini Noise Level 20kHz BW Full Encode Decode