akiroz
Previously known as b1o2r3i4s5.
- Joined
- Feb 8, 2012
- Posts
- 14,356
- Likes
- 302
4 channel balanced Beta22:
relay stepped attenuator (64 steps @ 1dB) controlled by an ATTINY26 MCU, used a linear pot. with the internal ADC as control.
Some labeling work left to do, I'm thinking of using Dymo tape.
There IS a bit of hum when using with sensitive IEMs, I might add a bit of shielding around the transformer, see if that helps.
Used a Neutrik PowerCON instead of the standard IEC connector because I don't have a saw to make rectangular holes
Input options:
2x XLR (Balanced)
2x TRS (Balanced)
2x TS (SE)
Output options:
2x XLR (Balanced)
4-pin XLR (Balanced)
4x Banana plug (Balanced / Speaker)
TRS (SE)
Selectable Gain: 2x, 5x, 16x
Selectable output: Headphone / Speaker
relay stepped attenuator (64 steps @ 1dB) controlled by an ATTINY26 MCU, used a linear pot. with the internal ADC as control.
Some labeling work left to do, I'm thinking of using Dymo tape.
There IS a bit of hum when using with sensitive IEMs, I might add a bit of shielding around the transformer, see if that helps.
Used a Neutrik PowerCON instead of the standard IEC connector because I don't have a saw to make rectangular holes
Input options:
2x XLR (Balanced)
2x TRS (Balanced)
2x TS (SE)
Output options:
2x XLR (Balanced)
4-pin XLR (Balanced)
4x Banana plug (Balanced / Speaker)
TRS (SE)
Selectable Gain: 2x, 5x, 16x
Selectable output: Headphone / Speaker