I am enjoying this! Clean, non-colored, non-fatiguing, dynamic, upper frequencies float in air. I don’t even want to try rolling any different op-amps. The 5532s are doing a marvelous job. I’m tempted to mount it sideways so heat rises away from the PCB and the aluminum plate/heatsink. A Class D to satisfy!
Thanks drMordor!
Thanks drMordor!
FDA for Class D input
This looks very interesting, I may purchase one myself to hear the difference between my new Emotiva (which sounds great, but max. power is not as high) and a nice class D.
BTW, as a systems engineer at Texas Instruments, I must mention that we have a great new FDA that works very well for class D input driving called OPA1637.
https://www.ti.com/lit/ds/symlink/opa1637.pdf
If you are looking to create a fully-dif. input stage for the next gen., this is the best way to go!
Mike
This looks very interesting, I may purchase one myself to hear the difference between my new Emotiva (which sounds great, but max. power is not as high) and a nice class D.
BTW, as a systems engineer at Texas Instruments, I must mention that we have a great new FDA that works very well for class D input driving called OPA1637.
https://www.ti.com/lit/ds/symlink/opa1637.pdf
If you are looking to create a fully-dif. input stage for the next gen., this is the best way to go!
Mike
Yes, THDN is very good over frequency, especially for the current consumption. Of course any FDA architecture inherently helps in the reduction of even order harmonics, and the wide voltage capability (+/- 15 V) also helps, but even compared to other FDA's in its class this amp. performs very well.
So you have 1632 or 4131 on this current design?
I'd like to try one! I'll contact you directly.
No, in this design i use standard OpAmp.
I have announced a new project:
My new project: GaN amp and LLC+SinchroRec PSU
In amp - LMG1210 gate drivers, FDA THS4130 and EPC2215 GaN transistors
In PSU- UCC25600.
