maosante
Active member
Hey guys,
I've recently upgraded the opamps of my interface Audient ID14 MKII for better bandwidth, noise, transient response, etc. I like how it sounds at the headphone outputs, yet, the inputs, have gone wrong and 1/2 outputs also have a problem. Here's what I swapped:
Inputs
Guitar input 1 OPA1678 → OPA1612
Input 1 OPA1678 → OPA1612 (120hz hum)
Input 2 OPA1678 → OPA1656 (noise a crackle up to -42db - sometimes it works well)
Headphone outputs
TL702 → OPA1612 (Crystal clear)
OPA1678 → OPA1656 (Crystal clear)
Balanced outputs
1/2 OPA1678 → OPA1612 (bass is kind of missing, mixes gets messed up at the low frecuency)
3/4 OPA1678 → OPA1656 (Crystal clear)
I would really appreciate if you can give me a light on this one!
There's a picture of the circuit with the new OPA1656 at the input #2 (if is useful by any means)
Thanks for your help.
I've recently upgraded the opamps of my interface Audient ID14 MKII for better bandwidth, noise, transient response, etc. I like how it sounds at the headphone outputs, yet, the inputs, have gone wrong and 1/2 outputs also have a problem. Here's what I swapped:
Inputs
Guitar input 1 OPA1678 → OPA1612
Input 1 OPA1678 → OPA1612 (120hz hum)
Input 2 OPA1678 → OPA1656 (noise a crackle up to -42db - sometimes it works well)
Headphone outputs
TL702 → OPA1612 (Crystal clear)
OPA1678 → OPA1656 (Crystal clear)
Balanced outputs
1/2 OPA1678 → OPA1612 (bass is kind of missing, mixes gets messed up at the low frecuency)
3/4 OPA1678 → OPA1656 (Crystal clear)
I would really appreciate if you can give me a light on this one!
There's a picture of the circuit with the new OPA1656 at the input #2 (if is useful by any means)
Thanks for your help.
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