dirty1_1garry
Well-known member
HI GUYS!
I have a plan to do pcb diy project of mic/line preamp based on 1073 pre with… 1081 EQ!
1073 contain very nice sounding class-A make up stage, 1081 contain most flexible EQ from all 10**'s series. Why we could not splice them together? I'll try
Here some ideas that I want bring to life:
1) I want to take away HPF from EQ chain and insert it right in to amp chain.
My arguments:
1) In generally I use HPF from all EQ most of all.
As 1073 HPF contains passive structure(right?). it's possible to move HPF from eq between input amp stage and out amp stage. So it will be possible to use HPF without inclusion of whole EQ. It will lead you to cleaner sound.
2) I have an idea to do switchable HPF before EQ of after EQ.
My arguments:
So you could boost low end and then cut some of low end with HPF or vice versa.
How do you think, could this feature be really useful?)
Will attach some images in next replays.
Here is my question to you:
1) 1073 HPF contain inductances, capacitors and resistors, so it have passive structure (right?). And is this fact allows me to move in right in to amp section between input amp and out amp?
2) Is it right to say that 1081 HPF is a second (third) order RC-filter?
3) It will be nice to made all unit in class A. But I haven't researched the question about difference between B184/284 C/B amp (1073) and 336 amp (1081) yet. This amps used for the same goal,I guess - for gain make up after eq.
May be any one of you describe some principal difference between them? Could I just feat 284C amps in to 1081 EQ?
I have a plan to do pcb diy project of mic/line preamp based on 1073 pre with… 1081 EQ!
1073 contain very nice sounding class-A make up stage, 1081 contain most flexible EQ from all 10**'s series. Why we could not splice them together? I'll try
Here some ideas that I want bring to life:
1) I want to take away HPF from EQ chain and insert it right in to amp chain.
My arguments:
1) In generally I use HPF from all EQ most of all.
As 1073 HPF contains passive structure(right?). it's possible to move HPF from eq between input amp stage and out amp stage. So it will be possible to use HPF without inclusion of whole EQ. It will lead you to cleaner sound.
My arguments:
So you could boost low end and then cut some of low end with HPF or vice versa.
How do you think, could this feature be really useful?)
Will attach some images in next replays.
Here is my question to you:
1) 1073 HPF contain inductances, capacitors and resistors, so it have passive structure (right?). And is this fact allows me to move in right in to amp section between input amp and out amp?
2) Is it right to say that 1081 HPF is a second (third) order RC-filter?
3) It will be nice to made all unit in class A. But I haven't researched the question about difference between B184/284 C/B amp (1073) and 336 amp (1081) yet. This amps used for the same goal,I guess - for gain make up after eq.
May be any one of you describe some principal difference between them? Could I just feat 284C amps in to 1081 EQ?